Update brown mooshroom

Entity is respawned on load (in an LBM) or when the banner node is punched.
Also, the banner drop is now handled in the node instead of the entity.

API.md

@@ -1,36 +1,89 @@
 # API
 ## Groups
-MineClone 2 makes very extensive use of groups. Making sure your items and objects are members of the correct group is a good and easy way to ensure compability without using any function calls.
+MineClone 2 makes very extensive use of groups. Making sure your items and objects have the correct group memberships is very important.
 Groups are explained in `GROUPS.md`.
 
-## APIs for adding simple things
-You can add simple things by calling functions in the various MineClone 2 mods.
+## Mod naming convention
+Mods mods in MineClone 2 follow a simple naming convention: Mods with the prefix “`mcl_`” are specific to MineClone 2, although they may be based on an existing standalone. Mods which lack this prefix are *usually* verbatim copies of a standalone mod. Some modifications may still have been applied, but the APIs are held compatible.
 
-* Fences and fence gates: See `mods/ITEMS/mcl_fences/API.md`.
-* Walls: See `mods/ITEMS/mcl_walls/API.md`
+## Adding items
+### Special fields
 
-### Undocumented APIs
-You can also add stuff for the following thins, but the APIs are currently undocumented. These mods are very similar to Minetest Game.
+Items can have these fields:
+* `_mcl_generate_description(itemstack)`: Required for any items which manipulate their
+   description in any way. This function takes an itemstack of its own type and must set
+   the proper advanced description for this itemstack. If you don't do this, anvils will
+   fail at properly restoring the description when their custom name gets cleared at an
+   anvil.
+   See `mcl_banners` for an example.
 
-* Doors: See `mods/ITEMS/doors`
-* Stairs and slabs: See `mods/ITEMS/stairs` and `mods/ITEMS/mcstair`
-* Beds: See `mods/ITEMS/beds`
-* Buckets (for new liquids): See `mods/ITEMS/bucket`
-* Panes (like glass panes and iron bars): See `mods/ITEMS/xpanes`
+All nodes can have these fields:
 
-WARNING! These 5 mods may be renamed or changed in future releases, and compability could be broken.
+* `_mcl_hardness`: Hardness of the block, ranges from 0 to infinity (represented by -1). Determines digging times. Default: 0
+* `_mcl_blast_resistance`: How well this block blocks and resists explosions. Default: 0
+* `_mcl_after_falling(pos)`: Called after a falling node finished falling and turned into a node.
+
+Use the `mcl_sounds` mod for the sounds.
+
+## APIs
+A lot of things are possible by using one of the APIs in the mods. Note that not all APIs are documented yet, but it is planned. The following APIs should be more or less stable but keep in mind that MineClone 2 is still unfinished. All directory names are relative to `mods/`
+
+### Items
+* Doors: `ITEMS/mcl_doors`
+* Fences and fence gates: `ITEMS/mcl_fences`
+* Stairs and slabs: `ITEM/mcl_stairs`
+* Walls: `ITEMS/mcl_walls`
+* Beds: `ITEMS/mcl_beds`
+* Buckets: `ITEMS/mcl_buckets`
+* Dispenser support: `ITEMS/REDSTONE/mcl_dispensers`
 
 ## Mobs
-This mod uses Mobs Redo [`mobs`] by TenPlus1, a very powerful mod for adding mods of various kinds.
-There are minor modificiations for MineClone 2 compability and some items have been removed or moved to other mods, but the API is identical to the original.
+* Mobs: `ENTITIES/mcl_mods`
+
+MineClone 2 uses its own mobs framework, called “Mobs Redo: MineClone 2 Edition” or “MRM” for short.
+This is a fork of Mobs Redo [`mobs`] by TenPlus1.
+
 You can add your own mobs, spawn eggs and spawning rules with this mod.
-API documnetation is included in `mods/ENTITIES/mobs/api.txt`.
+API documnetation is included in `ENTITIES/mcl_mobs/api.txt`.
 
-Note that mobs in MineClone 2 are still very experimental, everything about mobs may change radically at any time!
+This mod includes modificiations from the original Mobs Redo. Some items have been removed or moved to other mods.
+The API is mostly identical, but a few features have been added. Compability is not really a goal,
+but function and attribute names of Mobs Redo 1.41 are kept.
+If you have code for a mod which works fine under Mobs Redo, it should be easy to make it work in MineClone 2,
+chances are good that it works out of the box.
 
-## Other APIs
-* Statbars / HUD bars: See `mods/HUD/hudbars`
-* Hunger: See `mods/PLAYER/mcl_hunger/API.md`
+### Help
+* Item help texts: `HELP/doc/doc_items`
+* Low-level help entry and category framework: `HELP/doc/doc`
+* Support for lookup tool (required for all entities): `HELP/doc/doc_identifier`
 
-## Other things of interest
-Mods found in `mods/CORE` contain important core APIs and utility functions, used throughout the subgame.
+### HUD
+* Statbars: `HUD/hudbars`
+
+### Utility APIs
+* Change player physics: `PLAYER/playerphysics`
+* Select random treasures: `CORE/mcl_loot`
+* Get flowing direction of liquids: `CORE/flowlib`
+* `on_walk_over` callback for nodes: `CORE/walkover` 
+* Get node names close to player (to reduce constant querying): `PLAYER/mcl_playerinfo`
+
+### Unstable APIs
+The following APIs may be subject to change in future. You could already use these APIs but there will probably be breaking changes in the future, or the API is not as fleshed out as it should be. Use at your own risk!
+
+* Panes (like glass panes and iron bars): `ITEMS/xpanes`
+* `_on_ignite` callback: `ITEMS/mcl_fire`
+* Farming: `ITEMS/mcl_farming`
+* Anything related to redstone: Don't touch (yet)
+* Any other mod not explicitly mentioned above
+
+### Planned APIs
+
+* Flowers
+* Saplings and trees
+* Custom banner patterns
+* Custom dimensions
+* Custom portals
+* Music discs
+* Dispenser and dropper support
+* Proper sky and weather APIs
+* Explosion API

CONTRIBUTING.md

@@ -14,7 +14,7 @@ channel on irc.freenode.net. And finally, you can send e-mails to
 
 There is **no** guarantee I will accept anything from anybody.
 
-By sending me patches or asking me to include your changes in this subgame,
+By sending me patches or asking me to include your changes in this game,
 you agree that they fall under the terms of the LGPLv2.1, which basically
 means they will become part of a free software.
 
@@ -70,4 +70,4 @@ Depending on what you add, the chances for inclusion vary:
 ## Reporting bugs
 Report all bugs and missing Minecraft features here:
 
-<https://github.com/Wuzzy2/MineClone2-Bugs>
+<https://git.minetest.land/Wuzzy/MineClone2-Bugs>

GROUPS.md

@@ -1,5 +1,5 @@
 ## Groups
-This document explains all the groups used in this subgame.
+This document explains all the groups used in this game.
 
 ### Special groups
 
@@ -29,6 +29,8 @@ Please read <http://minecraft.gamepedia.com/Breaking> to learn how digging times
 
 ### Groups for interactions
 
+* `crush_after_fall=1`: For falling nodes. These will crush whatever they hit after falling, not dropping as an item
+* `falling_node_damage=1`: For falling nodes. Hurts any objects it hits while falling. Damage is based on anvils
 * `dig_by_water=1`: Blocks with this group will drop when they are near flowing water
 * `destroy_by_lava_flow=1`: Blocks with this group will be destroyed by flowing lava
 * `dig_by_piston=1`: Blocks which will drop as an item when pushed by a piston. They also cannot be pulled by sticky pistons
@@ -36,7 +38,8 @@ Please read <http://minecraft.gamepedia.com/Breaking> to learn how digging times
 * `cultivatable=1`: Block will be turned into Dirt by using a hoe on it
 * `flammable`: Block helps spreading fire and gets destroyed by nearby fire (rating doesn't matter)
 * `spreading_dirt_type=1`: A dirt-type block with a cover (e.g. grass) which may spread to neighbor dirt blocks
-* `dirtifies_below_solid=1`: This node turns into dirt immediately when a solid node is placed on top
+* `dirtifies_below_solid=1`: This node turns into dirt immediately when a solid or dirtifier node is placed on top
+* `dirtifier=1`: This node turns nodes the above group into dirt when placed above
 * `non_mycelium_plant=1`: A plant which can't grow on mycelium. Placing it on mycelium fails and if mycelium spreads below it, it uproots
 * `soil=1`: Saplings and other small plants can grow on it
 * `soil_sapling=2`: Soil for saplings. Intended to be natural soil. All saplings will grow on this
@@ -48,6 +51,11 @@ Please read <http://minecraft.gamepedia.com/Breaking> to learn how digging times
 * `destroys_items=1`: If an item happens to be *inside* this node, the item will be destroyed
 * `no_eat_delay=1`: Only for foodstuffs. When eating this, all eating delays are ignored.
 * `can_eat_when_full=1`: Only for foodstuffs. This item can be eaten when the user has a full hunger bar
+* `attached_node_facedir=1`: Like `attached_node`, but for facedir nodes
+* `cauldron`: Cauldron. 1: Empty. 2-4: Water height
+* `anvil`: Anvil. 1: No damage. 2-3: Higher damage levels
+* `no_rename=1`: Item cannot be renamed by anvil
+* `comparator_signal=X`: If set, this node outputs a constant (!) comparator signal output of strength X.
 
 #### Footnotes
 
@@ -71,6 +79,7 @@ Please read <http://minecraft.gamepedia.com/Breaking> to learn how digging times
 * `wool=1`: Wool (only full blocks)
 * `carpet=1:` (Wool) carpet
 * `stick=1`: Stick
+* `water_bucket=1`: Bucket containing a liquid of group “water”
 
 ### Material groups
 
@@ -89,10 +98,12 @@ These groups are used mostly for informational purposes
 
 * `solid=1`: Solid full-cube block (automatically assigned)
 * `opaque=1`: Opaque block (automatically assigned)
-* `not_solid=1`: Block is sold (only assign this group for nodes which are automatically detected as “solid” in error
+* `not_solid=1`: Block is not solid (only assign this group for nodes which are automatically detected as “solid” in error
+* `not_opaque=1`: Block is not opaque (only assign this group for nodes which are automatically detected as “opaque” in error
 * `fire=1`: Fire
 * `water=1`: Water
 * `lava=1`: Lava
+* `top_snow=X`: Top snow with X layers (1-8)
 * `torch`: Torch or torch-like node
     * `torch=1`: Torch on floor
     * `torch=2`: Torch at wall
@@ -109,6 +120,7 @@ These groups are used mostly for informational purposes
    * `flower_pot=2`: Flower pot with a plant or flower
 * `flower=1`: Flower
 * `place_flowerlike=1`: Node has placement rules like that of a flower
+* `place_flowerlike=2`: Node has placement rules like tall grass
 * `cake`: Cake (rating = slices left)
 * `book=1`: Book
 * `pane=1`: Node is a “pane”-like node glass pane or iron bars
@@ -140,12 +152,27 @@ These groups are used mostly for informational purposes
    * `container=5`: Left part of a 2-part horizontal connected container. Both parts have a `"main"` inventory
                     list. Both inventories are considered to belong together. This is used for large chests.
    * `container=6`: Same as above, but for the right part.
+   * `container=7`: Has inventory list "`main`", no movement allowed
    * `container=1`: Other/unspecified container type
 * `spawn_egg=1`: Spawn egg
 
+* `pressure_plate=1`: Pressure plate (off)
+* `pressure_plate=2`: Wooden pressure (on)
+* `button=1`: Button (off)
+* `button=2`: Button (on)
+* `redstone_torch=1`: Redstone Torch (lit)
+* `redstone_torch=2`: Redstone Torch (unlit)
+
 * `plant=1`: Plant or part of a plant
 * `double_plant`: Part of a double-sized plant. 1 = lower part, 2 = upper part
 
+* `pickaxe=1`: Pickaxe
+* `shovel=1`: Shovel
+* `axe=1`: Axe
+* `sword=1`: Sword
+* `hoe=1`: Hoe (farming tool)
+* `shears=1`: Shears
+
 * `weapon=1`: Item is primarily (!) a weapon
 * `tool=1`: Item is primarily (!) a tool
 * `craftitem=1`: Item is primarily (!) used for crafting

README.md

@@ -2,7 +2,7 @@
 An unofficial Minecraft-like game for Minetest. Forked from MineClone by daredevils.
 Developed by Wuzzy and contributors. Not developed or endorsed by Mojang AB.
 
-Version: 0.26.0
+Version: 0.46.0
 
 ### Gameplay
 You start in a randomly-generated world made entirely of cubes. You can explore
@@ -27,7 +27,6 @@ Or you can play in “creative mode” in which you can build almost anything in
 
 ## How to play (quick start)
 ### Getting started
-* **Use the world generator “v6”!**
 * **Punch a tree** trunk until it breaks and collect wood
 * Place the **wood into the 2×2 grid** (your “crafting grid” in your inventory menu and craft 4 wood planks
 * Place the 4 wood planks in a 2×2 shape in the crafting grid to **make a crafting table**
@@ -56,23 +55,31 @@ Or you can play in “creative mode” in which you can build almost anything in
 More help about the gameplay, blocks items and much more can be found from inside
 the game. You can access the help from your inventory menu.
 
-### Special blocks
-The following blocks are interesting for Creative Mode and for adventure
+### Special items
+The following items are interesting for Creative Mode and for adventure
 map builders. They can not be obtained in-game or in the creative inventory.
 
 * Barrier: `mcl_core:barrier`
-* Command Block: `mesecons_commandblock:commandblock_off`
-* Monster Spawner (WIP): `mcl_mobspawners:spawner`
-* Huge mushroom blocks: See `mods/ITEMS/mcl_mushrooms/README.md`
 
 Use the `/giveme` chat command to obtain them. See the in-game help for
 an explanation.
 
+#### Incomplete items
+These items do not work yet, but you can get them with `/giveme` for testing:
+
+* Fishing Rod: `mcl_fishing:fishing_rod`
+* Activator Rail: `mcl_minecarts:activator_rail`
+* Minecart with Chest: `mcl_minecarts:chest_minecart`
+* Minecart with Furnace: `mcl_minecarts:furnace_minecart`
+* Minecart with Hopper: `mcl_minecarts:hopper_minecart`
+* Minecart with Command Block: `mcl_minecarts:command_block_minecart`
+
 ## Installation
-This game requires [Minetest](http://minetest.net) 0.4.16 (or later) to run,
-so you need to install Minetest first. Only stable versions of Minetest are
-officially supported. There is no support whatsoever for running MineClone 2
-in development versions of Minetest.
+This game requires [Minetest](http://minetest.net) to run
+(version 0.4.16 or 0.4.17).
+So you need to install Minetest first. Only stable versions of Minetest are
+officially supported. Minetest 5.0.0 (when released) will NOT be supported (yet).
+There is no support whatsoever for running MineClone 2 in development versions of Minetest.
 To install MineClone 2, move this directory into the “games” directory of
 your Minetest data directory. Consult the help of Minetest to learn more.
 
@@ -89,22 +96,26 @@ The main goal of **MineClone 2** is to be a clone of Minecraft and to be release
 
 ## Completion status
 This game is currently in **alpha** stage.
-It is playable, but very unfinished, many bugs are to be expected.
+It is playable, but unfinished, many bugs are to be expected.
 Backwards-compability is *not* guaranteed, updating your world might cause small and
 big bugs (such as “missing node” errors or even crashes).
 
 The following main features are available:
 
-* Tools, weapons and armor
+* Tools, weapons
+* Armor (unbalanced)
 * Crafting system: 2×2 grid, crafting table (3×3 grid), furnace, including a crafting guide
 * Chests, large chests, ender chests, shulker boxes
+* Furnaces, hoppers
 * Hunger
 * Most monsters and animals
 * All ores from Minecraft
 * Most blocks in the overworld
 * Water and lava
 * Weather
-* Redstone circuits (partially): Redstone ore, redstone, redstone repeater, levers, buttons, redstone blocks, redstone lamps
+* 28 biomes
+* The Nether, a fiery underworld in another dimension
+* Redstone circuits (partially)
 * Minecarts (partial)
 * Boats
 * Fire
@@ -123,24 +134,22 @@ The following main features are available:
 * Inventory menu
 * Creative inventory
 * Farming
-* Bookshelves (deco only)
 * Writable books
 * A few server commands
 * And more!
 
 The following features are incomplete:
 
-* Trees, biomes, generated structures
+* Generated structures (especially villages)
 * NPCs
 * Some monsters and animals
-* Some redstone-related things
-* The Nether
+* Redstone-related things
 * The End
 * Enchanting
 * Experience
 * Status effects
 * Brewing, potions, tipped arrows
-* Anvil
+* Special minecarts
 * A couple of non-trivial blocks and items
 
 Bonus features (not found in Minecraft 1.11):
@@ -148,24 +157,33 @@ Bonus features (not found in Minecraft 1.11):
 * Built-in crafting guide which shows you crafting and smelting recipes
 * In-game help system containing extensive help about gameplay basics, blocks, items and more
 * Temporary crafting recipes. They only exist to make some otherwise unaccessible items available when you're not in creative mode. These recipes will be removed as development goes on an more features become available
+* Saplings in chests in mapgen v6
+* Fully moddable (thanks to Minetest's powerful Lua API)
+* New blocks and items:
+    * Lookup tool, shows you the help for whatever it touches
+    * More slabs and stairs
+    * Nether Brick Fence Gate
+    * Red Nether Brick Fence
+    * Red Nether Brick Fence Gate
 
 Technical differences from Minecraft:
 
 * Height limit of ca. 31000 blocks (much higher than in Minecraft)
 * Horizontal world size is ca. 62000×62000 blocks (much smaller than in Minecraft, but it is still very large)
-* Still very, very incomplete and buggy
+* Still very incomplete and buggy
 * Blocks, items, enemies and other features are missing
 * A few items have slightly different names to make them easier to distinguish
 * Different music for jukebox
 * Different textures (Pixel Perfection)
 * Different sounds (various sources)
 * Different engine (Minetest)
-* Free software (“free” as in freedom *and* free beer)
+
+… and finally, MineClone 2 is free software (“free” as in “freedom”)!
 
 ## Reporting bugs
 Please report all bugs and missing Minecraft features here:
 
-<https://github.com/Wuzzy2/MineClone2-Bugs>
+<https://git.minetest.land/Wuzzy/MineClone2-Bugs>
 
 ## Other readme files
 
@@ -180,6 +198,7 @@ There are so many people to list (sorry). Check out the respective mod directori
 ### Coding
 * [Wuzzy](https://forum.minetest.net/memberlist.php?mode=viewprofile&u=3082): Main programmer of most mods
 * daredevils: Creator of MineClone on which MineClone 2 is based on
+* [ex-bart](https://github.com/ex-bart): Redstone comparators
 * Lots of other people: TO BE WRITTEN (see mod directories for details)
 
 ### Textures
@@ -207,6 +226,7 @@ Various sources. See the respective mod directories for details.
 * Notch and Jeb for being the major forces behind Minecraft
 * XSSheep for creating the Pixel Perfection resource pack
 * [22i](https://github.com/22i) for providing great models and support
+* [maikerumine](http://github.com/maikerumine) for kicking off mobs and biomes
 
 ## Info for programmers
 You find interesting and useful infos in `API.md`.
@@ -216,7 +236,7 @@ This project is currently mostly a one-person project.
 This is a fan game, not developed or endorsed by Mojang AB.
 
 Copying is an act of love. Please copy and share! <3
-But, oh well, if you insist, here is the legalese for you:
+Here's the detailed legalese for those who need it:
 
 ### License of source code
 MineClone 2 is a clean-room implementation of Minecraft
@@ -235,18 +255,14 @@ No non-free licenses are used anywhere.
 The textures, unless otherwise noted, are based on the Pixel Perfection resource pack for Minecraft 1.11,
 authored by XSSheep. Most textures are verbatim copies, while some textures have been changed or redone
 from scratch.
+The glazed terracotta textures have been created by (MysticTempest)[https://github.com/MysticTempest].
 Source: <https://www.planetminecraft.com/texture_pack/131pixel-perfection/>
 License: [CC BY-SA 4.0](http://creativecommons.org/licenses/by-sa/4.0/)
 
-MineClone 2 is currently in the processs of changing all the textures.
-The textures for the glazed terracotta come from Faithful Vanilla.
-(authored by Vattic, xMrVizzy and many others).
-Source: <https://minecraft.curseforge.com/projects/faithful-vanilla>
-
-License of all main menu images: WTFPL
+The main menu images are release under: [CC0](https://creativecommons.org/publicdomain/zero/1.0/)
 
 All other files, unless mentioned otherwise, fall under:
-Attribution-ShareAlike 3.0 Unported (CC BY-SA 4.0)
+Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 4.0)
 http://creativecommons.org/licenses/by-sa/4.0/
 
 See README.txt in each mod directory for detailed information about other authors.

description.txt

@@ -0,0 +1 @@
+A survival sandbox game. Survive, gather, hunt, mine, build, explore, and do much more. Faithful clone of Minecraft 1.11. This is a work in progress! Expect bugs!

game.conf

@@ -1 +1,2 @@
 name = MineClone 2
+description = A survival sandbox game. Survive, gather, hunt, build, explore, and do much more.

minetest.conf

@@ -8,7 +8,7 @@ movement_acceleration_air = 1.2
 
 movement_speed_walk = 4.317
 movement_speed_crouch = 1.295
-movement_speed_fast = 10.89
+movement_speed_fast = 25.0
 
 movement_speed_jump = 6.6
 movement_speed_climb = 2.35
@@ -16,7 +16,7 @@ movement_speed_climb = 2.35
 
 movement_liquid_fluidity = 1.13
 movement_liquid_fluidity_smooth = 0.5
-movement_liquid_sink = 31
+movement_liquid_sink = 23
 
 movement_gravity = 10.4
 

mods/CORE/_mcl_autogroup/README.txt

@@ -0,0 +1,10 @@
+This mod automatically adds groups to items based on item metadata.
+
+Specifically, this mod has 2 purposes:
+1) Automatically adding the group “solid” for blocks considered “solid” in Minecraft.
+2) Generating digging time group for all nodes based on node metadata (it's complicated)
+
+See init.lua for more infos.
+
+The leading underscore in the name “_mcl_autogroup” was added to force Minetest to load this mod as late as possible.
+As of 0.4.16, Minetest loads mods in reverse alphabetical order.

mods/CORE/_mcl_autogroup/description.txt

@@ -0,0 +1 @@
+MineClone 2 core mod which automatically adds groups to all items. Very important for digging times.

mods/CORE/_mcl_autogroup/init.lua

@@ -1,11 +1,3 @@
---[[ This mod automatically adds groups to items based on item metadata.
-
-Specifically, this mod has 2 purposes:
-1) Automatically adding the group “solid” for blocks considered “solid” in Minecraft.
-2) Generating digging time group for all nodes based on node metadata (it's complicated)
-
-]]
-
 --[[ Mining times. Yeah, mining times … Alright, this is going to be FUN!
 
 This mod does include a HACK to make 100% sure the digging times of all tools match Minecraft's perfectly.
@@ -82,7 +74,8 @@ local overwrite = function()
 				groups_changed = true
 			end
 			-- Automatically assign the “opaque” group for opaque nodes
-			if not (ndef.paramtype == "light" or ndef.sunlight_propagates) then
+			if (not (ndef.paramtype == "light" or ndef.sunlight_propagates)) and
+					(ndef.groups.not_opaque == 0 or ndef.groups.not_opaque == nil) then
 				newgroups.opaque = 1
 				groups_changed = true
 			end

mods/CORE/_mcl_autogroup/mod.conf

@@ -0,0 +1 @@
+name = _mcl_autogroup

mods/CORE/controls/LICENSE

@@ -0,0 +1,504 @@
+                  GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+ 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+[This is the first released version of the Lesser GPL.  It also counts
+ as the successor of the GNU Library Public License, version 2, hence
+ the version number 2.1.]
+
+                            Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+Licenses are intended to guarantee your freedom to share and change
+free software--to make sure the software is free for all its users.
+
+  This license, the Lesser General Public License, applies to some
+specially designated software packages--typically libraries--of the
+Free Software Foundation and other authors who decide to use it.  You
+can use it too, but we suggest you first think carefully about whether
+this license or the ordinary General Public License is the better
+strategy to use in any particular case, based on the explanations below.
+
+  When we speak of free software, we are referring to freedom of use,
+not price.  Our General Public Licenses are designed to make sure that
+you have the freedom to distribute copies of free software (and charge
+for this service if you wish); that you receive source code or can get
+it if you want it; that you can change the software and use pieces of
+it in new free programs; and that you are informed that you can do
+these things.
+
+  To protect your rights, we need to make restrictions that forbid
+distributors to deny you these rights or to ask you to surrender these
+rights.  These restrictions translate to certain responsibilities for
+you if you distribute copies of the library or if you modify it.
+
+  For example, if you distribute copies of the library, whether gratis
+or for a fee, you must give the recipients all the rights that we gave
+you.  You must make sure that they, too, receive or can get the source
+code.  If you link other code with the library, you must provide
+complete object files to the recipients, so that they can relink them
+with the library after making changes to the library and recompiling
+it.  And you must show them these terms so they know their rights.
+
+  We protect your rights with a two-step method: (1) we copyright the
+library, and (2) we offer you this license, which gives you legal
+permission to copy, distribute and/or modify the library.
+
+  To protect each distributor, we want to make it very clear that
+there is no warranty for the free library.  Also, if the library is
+modified by someone else and passed on, the recipients should know
+that what they have is not the original version, so that the original
+author's reputation will not be affected by problems that might be
+introduced by others.
+
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+That's all there is to it!

mods/CORE/controls/README.md

@@ -0,0 +1,2 @@
+Controls framework by Arcelmi.
+https://github.com/Arcelmi/minetest-controls

mods/CORE/controls/init.lua

@@ -0,0 +1,63 @@
+controls = {}
+controls.players = {}
+
+controls.registered_on_press = {}
+function controls.register_on_press(func)
+	controls.registered_on_press[#controls.registered_on_press+1] = func
+end
+
+controls.registered_on_release = {}
+function controls.register_on_release(func)
+	controls.registered_on_release[#controls.registered_on_release+1] = func
+end
+
+controls.registered_on_hold = {}
+function controls.register_on_hold(func)
+	controls.registered_on_hold[#controls.registered_on_hold+1]=func
+end
+
+minetest.register_on_joinplayer(function(player)
+	local name = player:get_player_name()
+	controls.players[name] = {
+		jump={false}, 
+		right={false}, 
+		left={false}, 
+		LMB={false}, 
+		RMB={false}, 
+		sneak={false}, 
+		aux1={false}, 
+		down={false}, 
+		up={false}
+	}
+end)
+
+minetest.register_on_leaveplayer(function(player)
+	local name = player:get_player_name()
+	controls.players[name] = nil
+end)
+
+minetest.register_globalstep(function(dtime)
+	for _, player in pairs(minetest.get_connected_players()) do
+		local player_name = player:get_player_name()
+		local player_controls = player:get_player_control()
+		for cname, cbool in pairs(player_controls) do
+			--Press a key
+			if cbool==true and controls.players[player_name][cname][1]==false then
+				for _, func in pairs(controls.registered_on_press) do
+					func(player, cname)
+				end
+				controls.players[player_name][cname] = {true, os.clock()}
+			elseif cbool==true and controls.players[player_name][cname][1]==true then
+				for _, func in pairs(controls.registered_on_hold) do
+					func(player, cname, os.clock()-controls.players[player_name][cname][2])
+				end
+			--Release a key
+			elseif cbool==false and controls.players[player_name][cname][1]==true then
+				for _, func in pairs(controls.registered_on_release) do
+					func(player, cname, os.clock()-controls.players[player_name][cname][2])
+				end
+				controls.players[player_name][cname] = {false}
+			end
+		end
+	end
+end)

mods/CORE/controls/mod.conf

@@ -0,0 +1 @@
+name=controls

mods/CORE/mcl_attached/description.txt

@@ -0,0 +1 @@
+Adds additional ways for nodes to be attached.

mods/CORE/mcl_attached/init.lua

@@ -0,0 +1,24 @@
+local original_function = minetest.check_single_for_falling
+
+minetest.check_single_for_falling = function(pos)
+	local ret_o = original_function(pos)
+
+	local ret = false
+	local node = minetest.get_node(pos)
+	if minetest.get_item_group(node.name, "attached_node_facedir") ~= 0 then
+		local dir = minetest.facedir_to_dir(node.param2)
+		local cpos = vector.add(pos, dir)
+		local cnode = minetest.get_node(cpos)
+		if minetest.get_item_group(cnode.name, "solid") == 0 then
+			minetest.remove_node(pos)
+			local drops = minetest.get_node_drops(node.name, "")
+			for dr=1, #drops do
+				minetest.add_item(pos, drops[dr])
+			end
+			ret = true
+		end
+	end
+
+	return ret_o or ret
+end
+

mods/CORE/mcl_autogroup/mod.conf

@@ -1 +0,0 @@
-name = mcl_autogroup

mods/CORE/mcl_init/init.lua

@@ -11,7 +11,10 @@ mcl_vars.inventory_header = mcl_vars.gui_slots .. mcl_vars.gui_bg
 -- Mapgen variables
 local mg_name = minetest.get_mapgen_setting("mg_name")
 local minecraft_height_limit = 256
-if mg_name ~= "flat" then
+local superflat = mg_name == "flat" and minetest.get_mapgen_setting("mcl_superflat_classic") == "true"
+
+if not superflat then
+	-- Normal mode
 	--[[ Realm stacking (h is for height)
 	- Overworld (h>=256)
 	- Void (h>=1000)
@@ -32,39 +35,57 @@ if mg_name ~= "flat" then
 	mcl_vars.mg_bedrock_is_rough = true
 
 else
+	-- Classic superflat
 	local ground = minetest.get_mapgen_setting("mgflat_ground_level")
 	ground = tonumber(ground)
 	if not ground then
 		ground = 8
 	end
-	-- 1 perfectly flat bedrock layer
-	if minetest.get_mapgen_setting("mcl_superflat_classic") == "false" then
-		mcl_vars.mg_overworld_min = -30912
-	else
-		mcl_vars.mg_overworld_min = ground - 3
-	end
+	mcl_vars.mg_overworld_min = ground - 3
 	mcl_vars.mg_overworld_max_official = mcl_vars.mg_overworld_min + minecraft_height_limit
 	mcl_vars.mg_bedrock_overworld_min = mcl_vars.mg_overworld_min
 	mcl_vars.mg_bedrock_overworld_max = mcl_vars.mg_bedrock_overworld_min
 	mcl_vars.mg_lava = false
+	mcl_vars.mg_lava_overworld_max = mcl_vars.mg_overworld_min
 	mcl_vars.mg_bedrock_is_rough = false
 end
 
 mcl_vars.mg_overworld_max = 31000
 
--- The Nether
-mcl_vars.mg_nether_min = -29000
+-- The Nether (around Y = -29000)
+mcl_vars.mg_nether_min = -29067 -- Carefully chosen to be at a mapchunk border
 mcl_vars.mg_nether_max = mcl_vars.mg_nether_min + 128
 mcl_vars.mg_bedrock_nether_bottom_min = mcl_vars.mg_nether_min
-mcl_vars.mg_bedrock_nether_bottom_max = mcl_vars.mg_bedrock_nether_bottom_min + 4
 mcl_vars.mg_bedrock_nether_top_max = mcl_vars.mg_nether_max
-mcl_vars.mg_bedrock_nether_top_min = mcl_vars.mg_bedrock_nether_top_max - 4
-mcl_vars.mg_lava_nether_max = mcl_vars.mg_nether_min + 31
+if not superflat then
+	mcl_vars.mg_bedrock_nether_bottom_max = mcl_vars.mg_bedrock_nether_bottom_min + 4
+	mcl_vars.mg_bedrock_nether_top_min = mcl_vars.mg_bedrock_nether_top_max - 4
+	mcl_vars.mg_lava_nether_max = mcl_vars.mg_nether_min + 31
+else
+	-- Thin bedrock in classic superflat mapgen
+	mcl_vars.mg_bedrock_nether_bottom_max = mcl_vars.mg_bedrock_nether_bottom_min
+	mcl_vars.mg_bedrock_nether_top_min = mcl_vars.mg_bedrock_nether_top_max
+	mcl_vars.mg_lava_nether_max = mcl_vars.mg_nether_min + 2
+end
+if mg_name == "flat" then
+	if superflat then
+		mcl_vars.mg_flat_nether_floor = mcl_vars.mg_bedrock_nether_bottom_max + 4
+		mcl_vars.mg_flat_nether_ceiling = mcl_vars.mg_bedrock_nether_bottom_max + 52
+	else
+		mcl_vars.mg_flat_nether_floor = mcl_vars.mg_lava_nether_max + 4
+		mcl_vars.mg_flat_nether_ceiling = mcl_vars.mg_lava_nether_max + 52
+	end
+end
 
--- The End
-mcl_vars.mg_end_min = mcl_vars.mg_nether_max + 2000
+-- The End (surface at ca. Y = -27000)
+mcl_vars.mg_end_min = -27073 -- Carefully chosen to be at a mapchunk border
 mcl_vars.mg_end_max_official = mcl_vars.mg_end_min + minecraft_height_limit
 mcl_vars.mg_end_max = mcl_vars.mg_overworld_min - 2000
+mcl_vars.mg_end_platform_pos = { x = 100, y = mcl_vars.mg_end_min + 80, z = 0 }
+
+-- Realm barrier used to safely separate the End from the void below the Overworld
+mcl_vars.mg_realm_barrier_overworld_end_max = mcl_vars.mg_end_max
+mcl_vars.mg_realm_barrier_overworld_end_min = mcl_vars.mg_end_max - 11
 
 -- Set default stack sizes
 minetest.nodedef_default.stack_max = 64

mods/CORE/mcl_loot/init.lua

@@ -98,3 +98,57 @@ function mcl_loot.get_multi_loot(multi_loot_definitions, pr)
 	end
 	return items
 end
+
+--[[
+Returns a table of length `max_slot` and all natural numbers between 1 and `max_slot`
+in a random order.
+]]
+local function get_random_slots(max_slot)
+	local slots = {}
+	for s=1, max_slot do
+		slots[s] = s
+	end
+	local slots_out = {}
+	while #slots > 0 do
+		local r = math.random(1, #slots)
+		table.insert(slots_out, slots[r])
+		table.remove(slots, r)
+	end
+	for s=1, #slots_out do
+		print(slots_out[s])
+	end
+	return slots_out
+end
+
+--[[
+Puts items in an inventory list into random slots.
+* inv: InvRef
+* listname: Inventory list name
+* items: table of items to add
+
+Items will be added from start of the table to end.
+If the inventory already has occupied slots, or is
+too small, placement of some items might fail.
+]]
+function mcl_loot.fill_inventory(inv, listname, items)
+	local size = inv:get_size(listname)
+	local slots = get_random_slots(size)
+	local leftovers = {}
+	-- 1st pass: Add items into random slots
+	for i=1, math.min(#items, size) do
+		local item = items[i]
+		local slot = slots[i]
+		local old_item = inv:get_stack(listname, slot)
+		local leftover = old_item:add_item(item)
+		inv:set_stack(listname, slot, old_item)
+		if not leftover:is_empty() then
+			table.insert(leftovers, item)
+		end
+	end
+	-- 2nd pass: If some items couldn't be added in first pass,
+	-- try again in a non-random fashion
+	for l=1, math.min(#leftovers, size) do
+		inv:add_item(listname, leftovers[l])
+	end
+	-- If there are still items left, tough luck!
+end

mods/CORE/mcl_sounds/README.txt

@@ -75,6 +75,10 @@ Voxelands project <http://www.voxelands.com/> (CC BY-SA 3.0)
 (Note: Artists from the Voxelands project include: sdzen, darkrose, sapier,
       Tom Peter, Telaron, juskiddink)
 
+Michel Baradari <https://opengameart.org/content/lava-splash> (CC BY 3.0)
+
+  default_place_node_lava.ogg
+
 Adam_N (CC0 1.0):
   player_falling_damage.ogg
     Source: <https://www.freesound.org/people/Adam_N/sounds/346692/>

mods/CORE/mcl_sounds/init.lua

@@ -134,3 +134,21 @@ function mcl_sounds.node_sound_water_defaults(table)
 	mcl_sounds.node_sound_defaults(table)
 	return table
 end
+
+function mcl_sounds.node_sound_lava_defaults(table)
+	table = table or {}
+	-- TODO: Footstep
+	table.place = table.place or
+			{name = "default_place_node_lava", gain = 1.0}
+	table.dug = table.dug or
+			{name = "default_place_node_lava", gain = 1.0}
+	-- TODO: Different dug sound
+	mcl_sounds.node_sound_defaults(table)
+	return table
+end
+
+-- Player death sound
+minetest.register_on_dieplayer(function(player)
+	-- TODO: Add separate death sound
+	minetest.sound_play({name="player_damage", gain = 1.0}, {pos=player:get_pos(), max_hear_distance=16})
+end)

mods/CORE/mcl_util/init.lua

@@ -149,7 +149,7 @@ function mcl_util.get_eligible_transfer_item_slot(src_inventory, src_list, dst_i
 	return nil
 end
 
--- Returns true if given itemstack is a shulker box
+-- Returns true if itemstack is a shulker box
 local is_not_shulker_box = function(itemstack)
 	local g = minetest.get_item_group(itemstack:get_name(), "shulker_box")
 	return g == 0 or g == nil
@@ -205,6 +205,11 @@ function mcl_util.move_item_container(source_pos, destination_pos, source_list,
 	local dctype = minetest.get_item_group(dnode.name, "container")
 	local sctype = minetest.get_item_group(snode.name, "container")
 
+	-- Container type 7 does not allow any movement
+	if sctype == 7 then
+		return false
+	end
+
 	-- Normalize double container by forcing to always use the left segment first
 	local normalize_double_container = function(pos, node, ctype)
 		if ctype == 6 then
@@ -235,7 +240,7 @@ function mcl_util.move_item_container(source_pos, destination_pos, source_list,
 	-- Default source lists
 	if not source_list then
 		-- Main inventory for most container types
-		if sctype == 2 or sctype == 3 or sctype == 5 or sctype == 6 then
+		if sctype == 2 or sctype == 3 or sctype == 5 or sctype == 6 or sctype == 7 then
 			source_list = "main"
 		-- Furnace: output
 		elseif sctype == 4 then
@@ -281,13 +286,17 @@ function mcl_util.move_item_container(source_pos, destination_pos, source_list,
 			return false
 		end
 	end
+	-- Container type 7 does not allow any placement
+	if dctype == 7 then
+		return false
+	end
 
 	-- If it's a container, put it into the container
 	if dctype ~= 0 then
 		-- Automatically select a destination list if omitted
 		if not destination_list then
 			-- Main inventory for most container types
-			if dctype == 2 or dctype == 3 or dctype == 5 or dctype == 6 then
+			if dctype == 2 or dctype == 3 or dctype == 5 or dctype == 6 or dctype == 7 then
 				destination_list = "main"
 			-- Furnace source slot
 			elseif dctype == 4 then
@@ -331,68 +340,13 @@ function mcl_util.is_fuel(item)
 	return minetest.get_craft_result({method="fuel", width=1, items={item}}).time ~= 0
 end
 
--- For a given position, returns a 2-tuple:
--- 1st return value: true if pos is in void
--- 2nd return value: true if it is in the deadly part of the void
-function mcl_util.is_in_void(pos)
-	local void =
-		not ((pos.y < mcl_vars.mg_overworld_max and pos.y > mcl_vars.mg_overworld_min) or
-		(pos.y < mcl_vars.mg_nether_max and pos.y > mcl_vars.mg_nether_min) or
-		(pos.y < mcl_vars.mg_end_max and pos.y > mcl_vars.mg_end_min))
-
-	local void_deadly = false
-	local deadly_tolerance = 64 -- the player must be this many nodes “deep” into the void to be damaged
-	if void then
-		-- Overworld → Void → End → Void → Nether → Void
-		if pos.y < mcl_vars.mg_overworld_min and pos.y > mcl_vars.mg_end_max then
-			void_deadly = pos.y < mcl_vars.mg_overworld_min - deadly_tolerance
-		elseif pos.y < mcl_vars.mg_end_min and pos.y > mcl_vars.mg_nether_max then
-			void_deadly = pos.y < mcl_vars.mg_end_min - deadly_tolerance
-		elseif pos.y < mcl_vars.mg_nether_min then
-			void_deadly = pos.y < mcl_vars.mg_nether_min - deadly_tolerance
-		end
-	end
-	return void, void_deadly
-end
-
--- Here come 2 simple converter functions which are important for map generators and mob spawning
-
--- Takes an Y coordinate as input and returns:
--- 1) The corresponding Minecraft layer (can be nil if void)
--- 2) The corresponding Minecraft dimension ("overworld", "nether" or "end") or "void" if it is in the void
--- If the Y coordinate is not located in any dimension, it will return:
---     nil, "void"
-function mcl_util.y_to_layer(y)
-	if y >= mcl_vars.mg_overworld_min then
-		return y - mcl_vars.mg_overworld_min, "overworld"
-	elseif y >= mcl_vars.mg_nether_min and y <= mcl_vars.mg_nether_max then
-		return y - mcl_vars.mg_nether_min, "nether"
-	elseif y >= mcl_vars.mg_end_min and y <= mcl_vars.mg_end_max then
-		return y - mcl_vars.mg_end_min, "end"
-	else
-		return nil, "void"
-	end
-end
-
--- Takes a Minecraft layer and a “dimension” name
--- and returns the corresponding Y coordinate for
--- MineClone 2.
--- mc_dimension is one of "overworld", "nether", "end" (default: "overworld").
-function mcl_util.layer_to_y(layer, mc_dimension)
-	if mc_dimension == "overworld" or mc_dimension == nil then
-		return layer + mcl_vars.mg_overworld_min
-	elseif mc_dimension == "nether" then
-		return layer + mcl_vars.mg_nether_min
-	elseif mc_dimension == "end" then
-		return layer + mcl_vars.mg_end_min
-	end
-end
-
 -- Returns a on_place function for plants
--- * condition: function(pos, node)
+-- * condition: function(pos, node, itemstack)
 --    * A function which is called by the on_place function to check if the node can be placed
---    * Must return true, if placement is allowed, false otherwise
+--    * Must return true, if placement is allowed, false otherwise.
+--    * If it returns a string, placement is allowed, but will place this itemstring as a node instead
 --    * pos, node: Position and node table of plant node
+--    * itemstack: Itemstack to place
 function mcl_util.generate_on_place_plant_function(condition)
 	return function(itemstack, placer, pointed_thing)
 		if pointed_thing.type ~= "node" then
@@ -423,9 +377,10 @@ function mcl_util.generate_on_place_plant_function(condition)
 		end
 
 		-- Check placement rules
-		if (condition(place_pos, node) == true) then
+		local result, param2 = condition(place_pos, node, itemstack)
+		if result == true then
 			local idef = itemstack:get_definition()
-			local new_itemstack, success = minetest.item_place_node(itemstack, placer, pointed_thing)
+			local new_itemstack, success = minetest.item_place_node(itemstack, placer, pointed_thing, param2)
 
 			if success then
 				if idef.sounds and idef.sounds.place then

mods/CORE/mcl_worlds/depends.txt

@@ -0,0 +1 @@
+mcl_init

mods/CORE/mcl_worlds/description.txt

@@ -0,0 +1 @@
+Utility functions for worlds and the “dimensions”.

mods/CORE/mcl_worlds/init.lua

@@ -0,0 +1,140 @@
+mcl_worlds = {}
+
+-- For a given position, returns a 2-tuple:
+-- 1st return value: true if pos is in void
+-- 2nd return value: true if it is in the deadly part of the void
+function mcl_worlds.is_in_void(pos)
+	local void =
+		not ((pos.y < mcl_vars.mg_overworld_max and pos.y > mcl_vars.mg_overworld_min) or
+		(pos.y < mcl_vars.mg_nether_max and pos.y > mcl_vars.mg_nether_min) or
+		(pos.y < mcl_vars.mg_end_max and pos.y > mcl_vars.mg_end_min))
+
+	local void_deadly = false
+	local deadly_tolerance = 64 -- the player must be this many nodes “deep” into the void to be damaged
+	if void then
+		-- Overworld → Void → End → Void → Nether → Void
+		if pos.y < mcl_vars.mg_overworld_min and pos.y > mcl_vars.mg_end_max then
+			void_deadly = pos.y < mcl_vars.mg_overworld_min - deadly_tolerance
+		elseif pos.y < mcl_vars.mg_end_min and pos.y > mcl_vars.mg_nether_max then
+			-- The void between End and Nether. Like usual, but here, the void
+			-- *above* the Nether also has a small tolerance area, so player
+			-- can fly above the Nether without getting hurt instantly.
+			void_deadly = (pos.y < mcl_vars.mg_end_min - deadly_tolerance) and (pos.y > mcl_vars.mg_nether_max + deadly_tolerance)
+		elseif pos.y < mcl_vars.mg_nether_min then
+			void_deadly = pos.y < mcl_vars.mg_nether_min - deadly_tolerance
+		end
+	end
+	return void, void_deadly
+end
+
+-- Takes an Y coordinate as input and returns:
+-- 1) The corresponding Minecraft layer (can be nil if void)
+-- 2) The corresponding Minecraft dimension ("overworld", "nether" or "end") or "void" if it is in the void
+-- If the Y coordinate is not located in any dimension, it will return:
+--     nil, "void"
+function mcl_worlds.y_to_layer(y)
+       if y >= mcl_vars.mg_overworld_min then
+               return y - mcl_vars.mg_overworld_min, "overworld"
+       elseif y >= mcl_vars.mg_nether_min and y <= mcl_vars.mg_nether_max then
+               return y - mcl_vars.mg_nether_min, "nether"
+       elseif y >= mcl_vars.mg_end_min and y <= mcl_vars.mg_end_max then
+               return y - mcl_vars.mg_end_min, "end"
+       else
+               return nil, "void"
+       end
+end
+
+-- Takes a pos and returns the dimension it belongs to (same as above)
+function mcl_worlds.pos_to_dimension(pos)
+	local _, dim = mcl_worlds.y_to_layer(pos.y)
+	return dim
+end
+
+-- Takes a Minecraft layer and a “dimension” name
+-- and returns the corresponding Y coordinate for
+-- MineClone 2.
+-- mc_dimension is one of "overworld", "nether", "end" (default: "overworld").
+function mcl_worlds.layer_to_y(layer, mc_dimension)
+       if mc_dimension == "overworld" or mc_dimension == nil then
+               return layer + mcl_vars.mg_overworld_min
+       elseif mc_dimension == "nether" then
+               return layer + mcl_vars.mg_nether_min
+       elseif mc_dimension == "end" then
+               return layer + mcl_vars.mg_end_min
+       end
+end
+
+-- Takes a position and returns true if this position can have weather
+function mcl_worlds.has_weather(pos)
+       -- Weather in the Overworld and the high part of the void below
+       return pos.y <= mcl_vars.mg_overworld_max and pos.y >= mcl_vars.mg_overworld_min - 64
+end
+
+-- Takes a position (pos) and returns true if compasses are working here
+function mcl_worlds.compass_works(pos)
+       -- It doesn't work in Nether and the End, but it works in the Overworld and in the high part of the void below
+       local _, dim = mcl_worlds.y_to_layer(pos.y)
+       if dim == "nether" or dim == "end" then
+               return false
+       elseif dim == "void" then
+               return pos.y <= mcl_vars.mg_overworld_max and pos.y >= mcl_vars.mg_overworld_min - 64
+       else
+               return true
+       end
+end
+
+-- Takes a position (pos) and returns true if clocks are working here
+mcl_worlds.clock_works = mcl_worlds.compass_works
+
+--------------- CALLBACKS ------------------
+mcl_worlds.registered_on_dimension_change = {}
+
+-- Register a callback function func(player, dimension).
+-- It will be called whenever a player changes between dimensions.
+-- The void counts as dimension.
+-- * player: The player who changed the dimension
+-- * dimension: The new dimension of the player ("overworld", "nether", "end", "void").
+function mcl_worlds.register_on_dimension_change(func)
+	table.insert(mcl_worlds.registered_on_dimension_change, func)
+end
+
+-- Playername-indexed table containig the name of the last known dimension the
+-- player was in.
+local last_dimension = {}
+
+-- Notifies this mod about a dimension change of a player.
+-- * player: Player who changed the dimension
+-- * dimension: New dimension ("overworld", "nether", "end", "void")
+function mcl_worlds.dimension_change(player, dimension)
+	for i=1, #mcl_worlds.registered_on_dimension_change do
+		mcl_worlds.registered_on_dimension_change[i](player, dimension)
+		last_dimension[player:get_player_name()] = dimension
+	end
+end
+
+----------------------- INTERNAL STUFF ----------------------
+
+-- Update the dimension callbacks every DIM_UPDATE seconds
+local DIM_UPDATE = 1
+local dimtimer = 0
+
+minetest.register_on_joinplayer(function(player)
+	last_dimension[player:get_player_name()] = mcl_worlds.pos_to_dimension(player:get_pos())
+end)
+
+minetest.register_globalstep(function(dtime)
+	-- regular updates based on iterval
+	dimtimer = dimtimer + dtime;
+	if dimtimer >= DIM_UPDATE then
+		local players = minetest.get_connected_players()
+		for p=1, #players do
+			local dim = mcl_worlds.pos_to_dimension(players[p]:get_pos())
+			local name = players[p]:get_player_name()
+			if dim ~= last_dimension[name] then
+				mcl_worlds.dimension_change(players[p], dim)
+			end
+		end
+		dimtimer = 0
+	end
+end)
+

mods/CORE/modpack.conf

@@ -0,0 +1,2 @@
+name = CORE
+description = Meta-modpack containing the core mods for MineClone 2 for core APIs, variables and definitions

mods/CORE/walkover/init.lua

@@ -4,7 +4,9 @@ minetest.register_globalstep(function(dtime)
 	timer = timer + dtime;
 	if timer >= 0.3 then
 		for _,player in pairs(minetest.get_connected_players()) do
-            local loc = vector.add(player:getpos(),{x=0,y=-1,z=0})
+	    local pp = player:get_pos()
+	    pp.y = math.ceil(pp.y)
+            local loc = vector.add(pp, {x=0,y=-1,z=0})
             if loc ~= nil then
                
                 local nodeiamon = minetest.get_node(loc)

mods/ENTITIES/drippingwater/init.lua

@@ -25,7 +25,7 @@ minetest.register_entity("drippingwater:drop_water", {
 
 	on_step = function(self, dtime)
 	local k = math.random(1,222)
-	local ownpos = self.object:getpos()
+	local ownpos = self.object:get_pos()
 
 	if k==1 then
 	self.object:setacceleration({x=0, y=-5, z=0})
@@ -63,7 +63,7 @@ minetest.register_entity("drippingwater:drop_lava", {
 
 	on_step = function(self, dtime)
 	local k = math.random(1,222)
-	local ownpos = self.object:getpos()
+	local ownpos = self.object:get_pos()
 
 	if k==1 then
 	self.object:setacceleration({x=0, y=-5, z=0})

mods/ENTITIES/mcl_boats/init.lua

@@ -67,7 +67,7 @@ function boat.on_rightclick(self, clicker)
 		clicker:set_properties({visual_size = {x=1, y=1}})
 		mcl_player.player_attached[name] = false
 		mcl_player.player_set_animation(clicker, "stand" , 30)
-		local pos = clicker:getpos()
+		local pos = clicker:get_pos()
 		pos = {x = pos.x, y = pos.y + 0.2, z = pos.z}
 		clicker:setpos(pos)
 	elseif not self._driver then
@@ -85,11 +85,12 @@ function boat.on_rightclick(self, clicker)
 			{x = 0, y = 3.75, z = -1}, {x = 0, y = 0, z = 0})
 		clicker:set_properties({ visual_size = driver_visual_size })
 		mcl_player.player_attached[name] = true
-		minetest.after(0.2, function(clicker)
-			if clicker:is_player() then
-				mcl_player.player_set_animation(clicker, "sit" , 30)
+		minetest.after(0.2, function(name)
+			local player = minetest.get_player_by_name(name)
+			if player then
+				mcl_player.player_set_animation(player, "sit" , 30)
 			end
-		end, clicker)
+		end, name)
 		clicker:set_look_horizontal(self.object:getyaw())
 	end
 end
@@ -130,7 +131,12 @@ function boat.on_punch(self, puncher)
 		self._removed = true
 		-- Drop boat as item on the ground after punching
 		if not minetest.settings:get_bool("creative_mode") then
-			minetest.add_item(self.object:getpos(), self._itemstring)
+			minetest.add_item(self.object:get_pos(), self._itemstring)
+		else
+			local inv = puncher:get_inventory()
+			if not inv:contains_item("main", self._itemstring) then
+				inv:add_item("main", self._itemstring)
+			end
 		end
 		self.object:remove()
 	end
@@ -188,7 +194,7 @@ function boat.on_step(self, dtime)
 	end
 	local velo = self.object:getvelocity()
 	if self._v == 0 and velo.x == 0 and velo.y == 0 and velo.z == 0 then
-		self.object:setpos(self.object:getpos())
+		self.object:setpos(self.object:get_pos())
 		return
 	end
 	local s = get_sign(self._v)
@@ -202,7 +208,7 @@ function boat.on_step(self, dtime)
 		self._v = 5 * get_sign(self._v)
 	end
 
-	local p = self.object:getpos()
+	local p = self.object:get_pos()
 	p.y = p.y - boat_y_offset
 	local new_velo
 	local new_acce = {x = 0, y = 0, z = 0}
@@ -216,7 +222,7 @@ function boat.on_step(self, dtime)
 		end
 		new_velo = get_velocity(self._v, self.object:getyaw(),
 			self.object:getvelocity().y)
-		self.object:setpos(self.object:getpos())
+		self.object:setpos(self.object:get_pos())
 	else
 		p.y = p.y + 1
 		if is_water(p) then
@@ -229,18 +235,18 @@ function boat.on_step(self, dtime)
 				new_acce = {x = 0, y = 5, z = 0}
 			end
 			new_velo = get_velocity(self._v, self.object:getyaw(), y)
-			self.object:setpos(self.object:getpos())
+			self.object:setpos(self.object:get_pos())
 		else
 			new_acce = {x = 0, y = 0, z = 0}
 			if math.abs(self.object:getvelocity().y) < 1 then
-				local pos = self.object:getpos()
+				local pos = self.object:get_pos()
 				pos.y = math.floor(pos.y) + boat_y_offset
 				self.object:setpos(pos)
 				new_velo = get_velocity(self._v, self.object:getyaw(), 0)
 			else
 				new_velo = get_velocity(self._v, self.object:getyaw(),
 					self.object:getvelocity().y)
-				self.object:setpos(self.object:getpos())
+				self.object:setpos(self.object:get_pos())
 			end
 		end
 	end
@@ -302,11 +308,22 @@ for b=1, #boat_ids do
 			local boat = minetest.add_entity(pointed_thing.under, "mcl_boats:boat")
 			boat:get_luaentity()._itemstring = itemstring
 			boat:set_properties({textures = { "mcl_boats_texture_"..images[b].."_boat.png" }})
+			boat:set_yaw(placer:get_look_horizontal())
 			if not minetest.settings:get_bool("creative_mode") then
 				itemstack:take_item()
 			end
 			return itemstack
 		end,
+		_on_dispense = function(stack, pos, droppos, dropnode, dropdir)
+			local below = {x=droppos.x, y=droppos.y-1, z=droppos.z}
+			local belownode = minetest.get_node(below)
+			-- Place boat as entity on or in water
+			if minetest.get_item_group(dropnode.name, "water") ~= 0 or (dropnode.name == "air" and minetest.get_item_group(belownode.name, "water") ~= 0) then
+				minetest.add_entity(droppos, "mcl_boats:boat")
+			else
+				minetest.add_item(droppos, stack)
+			end
+		end,
 	})
 
 	local c = craftstuffs[b]

mods/ENTITIES/mcl_falling_nodes/description.txt

@@ -0,0 +1 @@
+Falling node entities, Minecraft-style

mods/ENTITIES/mcl_falling_nodes/init.lua

@@ -0,0 +1,256 @@
+local dmes = minetest.get_modpath("mcl_death_messages") ~= nil
+
+local get_falling_depth = function(self)
+	if not self._startpos then
+		-- Fallback
+		self._startpos = self.object:get_pos()
+	end
+	return self._startpos.y - vector.round(self.object:get_pos()).y
+end
+
+local deal_falling_damage = function(self, dtime)
+	if minetest.get_item_group(self.node.name, "falling_node_damage") == 0 then
+		return
+	end
+	-- Cause damage to any player it hits.
+	-- Algorithm based on MC anvils.
+	-- TODO: Support smashing other objects, too.
+	local pos = self.object:get_pos()
+	if not self._startpos then
+		-- Fallback
+		self._startpos = pos
+	end
+	local objs = minetest.get_objects_inside_radius(pos, 1)
+	for _,v in ipairs(objs) do
+		local hp = v:get_hp()
+		if v:is_player() and hp ~= 0 then
+			if not self._hit_players then
+				self._hit_players = {}
+			end
+			local name = v:get_player_name()
+			local hit = false
+			for _,v in ipairs(self._hit_players) do
+				if name == v then
+					hit = true
+				end
+			end
+			if not hit then
+				table.insert(self._hit_players, name)
+				local way = self._startpos.y - pos.y
+				local damage = (way - 1) * 2
+				damage = math.min(40, math.max(0, damage))
+				if damage >= 1 then
+					hp = hp - damage
+					if hp < 0 then
+						hp = 0
+					end
+					if v:is_player() then
+						-- TODO: Reduce damage if wearing a helmet
+						local msg
+						if minetest.get_item_group(self.node.name, "anvil") ~= 0 then
+							msg = "%s was smashed by a falling anvil."
+						else
+							msg = "%s was smashed by a falling block."
+						end
+						if dmes then
+							mcl_death_messages.player_damage(v, string.format(msg, v:get_player_name()))
+						end
+					end
+					v:set_hp(hp)
+				end
+			end
+		end
+	end
+end
+
+minetest.register_entity(":__builtin:falling_node", {
+	initial_properties = {
+		visual = "wielditem",
+		visual_size = {x = 0.667, y = 0.667},
+		textures = {},
+		physical = true,
+		is_visible = false,
+		collide_with_objects = false,
+		collisionbox = {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
+	},
+
+	node = {},
+	meta = {},
+
+	set_node = function(self, node, meta)
+		self.node = node
+		self.meta = meta or {}
+		self.object:set_properties({
+			is_visible = true,
+			textures = {node.name},
+		})
+		local def = core.registered_nodes[node.name]
+		-- Set correct entity yaw
+		if def and node.param2 ~= 0 then
+			if (def.paramtype2 == "facedir" or def.paramtype2 == "colorfacedir") then
+				self.object:set_yaw(core.dir_to_yaw(core.facedir_to_dir(node.param2)))
+			elseif (def.paramtype2 == "wallmounted" or def.paramtype2 == "colorwallmounted") then
+				self.object:set_yaw(core.dir_to_yaw(core.wallmounted_to_dir(node.param2)))
+			end
+		end
+	end,
+
+	get_staticdata = function(self)
+		local meta = self.meta
+		-- Workaround: Save inventory seperately from metadata.
+		-- Because Minetest crashes when a node with inventory gets deactivated
+		-- (GitHub issue #7020).
+		-- FIXME: Remove the _inv workaround when it is no longer needed
+		local inv
+		if meta then
+			inv = meta.inv
+			meta.inventory = nil
+		end
+		local ds = {
+			node = self.node,
+			meta = self.meta,
+			_inv = inv,
+			_startpos = self._startpos,
+			_hit_players = self._hit_players,
+		}
+		return minetest.serialize(ds)
+	end,
+
+	on_activate = function(self, staticdata)
+		self.object:set_armor_groups({immortal = 1})
+		
+		local ds = minetest.deserialize(staticdata)
+		if ds then
+			self._startpos = ds._startpos
+			self._hit_players = ds._hit_players
+			if ds.node then
+				local meta = ds.meta
+				meta.inventory = ds._inv
+				self:set_node(ds.node, meta)
+			else
+				self:set_node(ds)
+			end
+		elseif staticdata ~= "" then
+			self:set_node({name = staticdata})
+		end
+		if not self._startpos then
+			self._startpos = self.object:get_pos()
+		end
+		self._startpos = vector.round(self._startpos)
+	end,
+
+	on_step = function(self, dtime)
+		-- Set gravity
+		local acceleration = self.object:getacceleration()
+		if not vector.equals(acceleration, {x = 0, y = -10, z = 0}) then
+			self.object:setacceleration({x = 0, y = -10, z = 0})
+		end
+		-- Turn to actual node when colliding with ground, or continue to move
+		local pos = self.object:get_pos()
+
+		-- Portal check
+		local np = {x = pos.x, y = pos.y + 0.3, z = pos.z}
+		local n2 = minetest.get_node(np)
+		if n2.name == "mcl_portals:portal_end" then
+			-- TODO: Teleport falling node. 
+			self.object:remove()
+			return
+		end
+
+		-- Position of bottom center point
+		local bcp = {x = pos.x, y = pos.y - 0.7, z = pos.z}
+		-- Avoid bugs caused by an unloaded node below
+		local bcn = minetest.get_node_or_nil(bcp)
+		local bcd = bcn and minetest.registered_nodes[bcn.name]
+
+		-- TODO: At this point, we did 2 get_nodes in 1 tick.
+		-- Figure out how to improve that (if it is a problem).
+
+		if bcn and (not bcd or bcd.walkable or
+				(minetest.get_item_group(self.node.name, "float") ~= 0 and
+				bcd.liquidtype ~= "none")) then
+			if bcd and bcd.leveled and
+					bcn.name == self.node.name then
+				local addlevel = self.node.level
+				if not addlevel or addlevel <= 0 then
+					addlevel = bcd.leveled
+				end
+				if minetest.add_node_level(bcp, addlevel) == 0 then
+					if minetest.registered_nodes[self.node.name]._mcl_after_falling then
+						minetest.registered_nodes[self.node.name]._mcl_after_falling(bcp, get_falling_depth(self))
+					end
+					deal_falling_damage(self, dtime)
+					self.object:remove()
+					return
+				end
+			elseif bcd and bcd.buildable_to and
+					(minetest.get_item_group(self.node.name, "float") == 0 or
+					bcd.liquidtype == "none") then
+				minetest.remove_node(bcp)
+				return
+			end
+			local nd = minetest.registered_nodes[n2.name]
+			if n2.name == "mcl_portals:portal_end" then
+				-- TODO: Teleport falling node. 
+
+			elseif (nd and nd.buildable_to == true) or minetest.get_item_group(self.node.name, "crush_after_fall") ~= 0 then
+				-- Replace destination node if it's buildable to
+				minetest.remove_node(np)
+				-- Run script hook
+				for _, callback in pairs(minetest.registered_on_dignodes) do
+					callback(np, n2)
+				end
+				if minetest.registered_nodes[self.node.name] then
+					minetest.add_node(np, self.node)
+					if minetest.registered_nodes[self.node.name]._mcl_after_falling then
+						minetest.registered_nodes[self.node.name]._mcl_after_falling(np, get_falling_depth(self))
+					end
+					if self.meta then
+						local meta = minetest.get_meta(np)
+						meta:from_table(self.meta)
+					end
+				end
+			else
+				-- Drop the *falling node* as an item if the destination node is NOT buildable to
+				local drops = minetest.get_node_drops(self.node.name, "")
+				for _, dropped_item in pairs(drops) do
+					minetest.add_item(np, dropped_item)
+				end
+			end
+			deal_falling_damage(self, dtime)
+			self.object:remove()
+			minetest.check_for_falling(np)
+			return
+		end
+		local vel = self.object:getvelocity()
+		-- Fix position if entity does not move
+		if vector.equals(vel, {x = 0, y = 0, z = 0}) then
+			local npos = vector.round(self.object:get_pos())
+			local npos2 = table.copy(npos)
+			npos2.y = npos2.y - 2
+			local lownode = minetest.get_node(npos2)
+			-- Special check required for fences and walls, because of their overhigh collision box.
+			if minetest.get_item_group(lownode.name, "fence") == 1 or minetest.get_item_group(lownode.name, "wall") == 1 then
+				-- Instantly stop the node if it is above a fence/wall. This is needed
+				-- because the falling node collides early with a fence/wall node.
+				-- Hacky, because the falling node will teleport a short distance, instead
+				-- of smoothly fall on the fence post.
+				local npos3 = table.copy(npos)
+				npos3.y = npos3.y - 1
+				minetest.add_node(npos3, self.node)
+				if minetest.registered_nodes[self.node.name]._mcl_after_falling then
+					minetest.registered_nodes[self.node.name]._mcl_after_falling(npos3, get_falling_depth(self))
+				end
+				deal_falling_damage(self, dtime)
+				self.object:remove()
+				minetest.check_for_falling(npos3)
+				return
+			else
+				-- Normal position fix (expected case)
+				self.object:set_pos(npos)
+			end
+		end
+
+		deal_falling_damage(self, dtime)
+	end
+})

mods/ENTITIES/mcl_falling_nodes/mod.conf

@@ -0,0 +1 @@
+name = mcl_falling_nodes

mods/ENTITIES/mcl_item_entity/README.txt

@@ -4,7 +4,7 @@ by PilzAdam
 Introduction:
 This mod adds Minecraft like drop/pick up of items to Minetest.
 
-This mod has been forked from item_drop in the VoxBox subgame.
+This mod has been forked from item_drop in the VoxBox game.
 
 License:
 Sourcecode: WTFPL (see below)

mods/ENTITIES/mcl_item_entity/init.lua

@@ -55,20 +55,20 @@ end
 minetest.register_globalstep(function(dtime)
 	for _,player in ipairs(minetest.get_connected_players()) do
 		if player:get_hp() > 0 or not minetest.settings:get_bool("enable_damage") then
-			local pos = player:getpos()
+			local pos = player:get_pos()
 			local inv = player:get_inventory()
 			local checkpos = {x=pos.x,y=pos.y + item_drop_settings.player_collect_height,z=pos.z}
 
 			--magnet and collection
 			for _,object in ipairs(minetest.get_objects_inside_radius(checkpos, item_drop_settings.radius_magnet)) do
-				if not object:is_player() and object:get_luaentity() and object:get_luaentity().name == "__builtin:item" and (object:get_luaentity()._insta_collect or (object:get_luaentity().age > item_drop_settings.age)) then
+				if not object:is_player() and object:get_luaentity() and object:get_luaentity().name == "__builtin:item" and object:get_luaentity()._magnet_timer and (object:get_luaentity()._insta_collect or (object:get_luaentity().age > item_drop_settings.age)) then
 					object:get_luaentity()._magnet_timer = object:get_luaentity()._magnet_timer + dtime
 					local collected = false
 					if object:get_luaentity()._magnet_timer >= 0 and object:get_luaentity()._magnet_timer < item_drop_settings.magnet_time and inv and inv:room_for_item("main", ItemStack(object:get_luaentity().itemstring)) then
 
 						-- Collection
-						if vector.distance(checkpos, object:getpos()) <= item_drop_settings.radius_collect then
-
+						if vector.distance(checkpos, object:get_pos()) <= item_drop_settings.radius_collect and not object:get_luaentity()._removed then
+							-- Ignore if itemstring is not set yet
 							if object:get_luaentity().itemstring ~= "" then
 								inv:add_item("main", ItemStack(object:get_luaentity().itemstring))
 								minetest.sound_play("item_drop_pickup", {
@@ -77,7 +77,11 @@ minetest.register_globalstep(function(dtime)
 									gain = 1.0,
 								})
 								check_pickup_achievements(object, player)
-								object:get_luaentity().itemstring = ""
+
+
+								-- Destroy entity
+								-- This just prevents this section to be run again because object:remove() doesn't remove the item immediately.
+								object:get_luaentity()._removed = true
 								object:remove()
 								collected = true
 							end
@@ -91,7 +95,7 @@ minetest.register_globalstep(function(dtime)
 							-- Move object to player
 							disable_physics(object, object:get_luaentity())
 
-							local opos = object:getpos()
+							local opos = object:get_pos()
 							local vec = vector.subtract(checkpos, opos)
 							vec = vector.add(opos, vector.divide(vec, 2))
 							object:moveto(vec)
@@ -111,7 +115,8 @@ minetest.register_globalstep(function(dtime)
 								if object:get_luaentity().init ~= true then
 									object:get_luaentity().init = true
 									minetest.after(1, function(args)
-										local player = args[1]
+										local playername = args[1]
+										local player = minetest.get_player_by_name(playername)
 										local object = args[2]
 										local lua = object:get_luaentity()
 										if player == nil or not player:is_player() or object == nil or lua == nil or lua.itemstring == nil then
@@ -119,7 +124,7 @@ minetest.register_globalstep(function(dtime)
 										end
 										if inv:room_for_item("main", ItemStack(object:get_luaentity().itemstring)) then
 											inv:add_item("main", ItemStack(object:get_luaentity().itemstring))
-											if object:get_luaentity().itemstring ~= "" then
+											if not object:get_luaentity()._removed then
 												minetest.sound_play("item_drop_pickup", {
 													pos = pos,
 													max_hear_distance = 16,
@@ -127,12 +132,12 @@ minetest.register_globalstep(function(dtime)
 												})
 											end
 											check_pickup_achievements(object, player)
-											object:get_luaentity().itemstring = ""
+											object:get_luaentity()._removed = true
 											object:remove()
 										else
 											enable_physics(object, object:get_luaentity())
 										end
-									end, {player, object})
+									end, {player:get_player_name(), object})
 								end
 							end
 						end
@@ -203,18 +208,25 @@ local check_can_drop = function(node_name, tool_capabilities)
 end
 
 function minetest.handle_node_drops(pos, drops, digger)
+	-- NOTE: This function override allows digger to be nil.
+	-- This means there is no digger. This is a special case which allows this function to be called
+	-- by hand. Creative Mode is intentionally ignored in this case.
+
 	local doTileDrops = minetest.settings:get_bool("mcl_doTileDrops") or true
-	if minetest.settings:get_bool("creative_mode") or doTileDrops == false then
+	if (digger ~= nil and minetest.settings:get_bool("creative_mode")) or doTileDrops == false then
 		return
 	end
 
 	-- Check if node will yield its useful drop by the digger's tool
 	local dug_node = minetest.get_node(pos)
-	local tool = digger:get_wielded_item()
-	local toolcaps = tool:get_tool_capabilities()
+	local toolcaps
+	if digger ~= nil then
+		local tool = digger:get_wielded_item()
+		toolcaps = tool:get_tool_capabilities()
 
-	if not check_can_drop(dug_node.name, toolcaps) then
-		return
+		if not check_can_drop(dug_node.name, toolcaps) then
+			return
+		end
 	end
 
 	--[[ Special node drops when dug by shears by reading _mcl_shears_drop
@@ -224,7 +236,7 @@ function minetest.handle_node_drops(pos, drops, digger)
 	* table: Drop every itemstring in this table when dub by shears
 	]]
 	local nodedef = minetest.registered_nodes[dug_node.name]
-	if toolcaps.groupcaps and toolcaps.groupcaps.shearsy_dig and nodedef._mcl_shears_drop then
+	if toolcaps ~= nil and toolcaps.groupcaps and toolcaps.groupcaps.shearsy_dig and nodedef._mcl_shears_drop then
 		if nodedef._mcl_shears_drop == true then
 			drops = { dug_node.name }
 		else
@@ -242,7 +254,7 @@ function minetest.handle_node_drops(pos, drops, digger)
 			name = item:get_name()
 		end
 		for i=1,count do
-			local obj = minetest.add_item(pos, name)
+			local obj = core.add_item(pos, name)
 			if obj ~= nil then
 				local x = math.random(1, 5)
 				if math.random(1,2) == 1 then
@@ -283,7 +295,7 @@ end
 
 --modify builtin:item
 
-local time_to_live = tonumber(core.setting_get("item_entity_ttl"))
+local time_to_live = tonumber(minetest.settings:get("item_entity_ttl"))
 if not time_to_live then
 	time_to_live = 300
 end
@@ -303,17 +315,27 @@ core.register_entity(":__builtin:item", {
 		infotext = "",
 	},
 
+	-- Itemstring of dropped item. The empty string is used when the item is not yet initialized yet.
+	-- The itemstring MUST be set immediately to a non-empty string after creating the entity.
+	-- The hand is NOT permitted as dropped item. ;-)
+	-- Item entities will be deleted if they still have an empty itemstring on their first on_step tick.
 	itemstring = '',
+
+	-- If true, item will fall
 	physical_state = true,
-	_flowing = false, -- item entity is currently flowing
-	-- States:
-	-- * "magnet": Attracted to a nearby player or item
-	-- * "flowing": Moving in a flowing liquid
-	-- * "normal": Affected by gravitiy
+
+	-- If item entity is currently flowing in water
+	_flowing = false,
+
+	-- Number of seconds this item entity has existed so far
 	age = 0,
 
 	set_item = function(self, itemstring)
 		self.itemstring = itemstring
+		if self.itemstring == "" then
+			-- item not yet known
+			return
+		end
 		local stack = ItemStack(itemstring)
 		local count = stack:get_count()
 		local max_count = stack:get_stack_max()
@@ -376,6 +398,7 @@ core.register_entity(":__builtin:item", {
 			age = self.age,
 			_insta_collect = self._insta_collect,
 			_flowing = self._flowing,
+			_removed = self._removed,
 		})
 	end,
 
@@ -394,10 +417,16 @@ core.register_entity(":__builtin:item", {
 				-- If true, can collect item without delay
 				self._insta_collect = data._insta_collect
 				self._flowing = data._flowing
+				self._removed = data._removed
 			end
 		else
 			self.itemstring = staticdata
 		end
+		if self._removed then
+			self._removed = true
+			self.object:remove()
+			return
+		end
 		if self._insta_collect == nil then
 			-- Intentionally default, since delayed collection is rare
 			self._insta_collect = true
@@ -420,67 +449,66 @@ core.register_entity(":__builtin:item", {
 		self:set_item(self.itemstring)
 	end,
 
-	try_merge_with = function(self, own_stack, object, obj)
-		local stack = ItemStack(obj.itemstring)
-		if own_stack:get_name() == stack:get_name() and stack:get_free_space() > 0 then
-			local overflow = false
-			local count = stack:get_count() + own_stack:get_count()
-			local max_count = stack:get_stack_max()
-			if count > max_count then
-				overflow = true
-				count = count - max_count
-			else
-				self.itemstring = ''
-			end
-			local pos = object:getpos()
-			pos.y = pos.y + (count - stack:get_count()) / max_count * 0.15
-			object:moveto(pos, false)
-			local s, c
-			local max_count = stack:get_stack_max()
-			local name = stack:get_name()
-			if not overflow then
-				obj.itemstring = name .. " " .. count
-				s = 0.2 + 0.1 * (count / max_count)
-				c = s
-				object:set_properties({
-					visual_size = {x = s, y = s},
-					collisionbox = {-c, -c, -c, c, c, c}
-				})
-				self.object:remove()
-				-- merging succeeded
-				return true
-			else
-				s = 0.4
-				c = 0.3
-				object:set_properties({
-					visual_size = {x = s, y = s},
-					collisionbox = {-c, -c, -c, c, c, c}
-				})
-				obj.itemstring = name .. " " .. max_count
-				s = 0.2 + 0.1 * (count / max_count)
-				c = s
-				self.object:set_properties({
-					visual_size = {x = s, y = s},
-					collisionbox = {-c, -c, -c, c, c, c}
-				})
-				self.itemstring = name .. " " .. count
-			end
+	try_merge_with = function(self, own_stack, object, entity)
+		if self.age == entity.age or entity._removed then
+			-- Can not merge with itself and remove entity
+			return false
 		end
-		-- merging didn't succeed
-		return false
+
+		local stack = ItemStack(entity.itemstring)
+		local name = stack:get_name()
+		if own_stack:get_name() ~= name or
+				own_stack:get_meta() ~= stack:get_meta() or
+				own_stack:get_wear() ~= stack:get_wear() or
+				own_stack:get_free_space() == 0 then
+			-- Can not merge different or full stack
+			return false
+		end
+
+		local count = own_stack:get_count()
+		local total_count = stack:get_count() + count
+		local max_count = stack:get_stack_max()
+
+		if total_count > max_count then
+			return false
+		end
+		-- Merge the remote stack into this one
+
+		local pos = object:get_pos()
+		pos.y = pos.y + ((total_count - count) / max_count) * 0.15
+		self.object:move_to(pos)
+
+		self.age = 0 -- Handle as new entity
+		own_stack:set_count(total_count)
+		self:set_item(own_stack:to_string())
+
+		entity._removed = true
+		object:remove()
+		return true
 	end,
 
 	on_step = function(self, dtime)
+		if self._removed then
+			return
+		end
 		self.age = self.age + dtime
 		if self._collector_timer ~= nil then
 			self._collector_timer = self._collector_timer + dtime
 		end
 		if time_to_live > 0 and self.age > time_to_live then
-			self.itemstring = ''
+			self._removed = true
 			self.object:remove()
 			return
 		end
-		local p = self.object:getpos()
+		-- Delete corrupted item entities. The itemstring MUST be non-empty on its first step,
+		-- otherwise there might have some data corruption.
+		if self.itemstring == "" then
+			minetest.log("warning", "Item entity with empty itemstring found at "..minetest.pos_to_string(self.object:get_pos()).. "! Deleting it now.")
+			self._removed = true
+			self.object:remove()
+		end
+
+		local p = self.object:get_pos()
 		local node = core.get_node_or_nil(p)
 		local in_unloaded = (node == nil)
 
@@ -496,14 +524,17 @@ core.register_entity(":__builtin:item", {
 			return
 		end
 
-		-- Destroy item in lava or special nodes
+		-- Destroy item in lava, fire or special nodes
 		local nn = node.name
 		local def = minetest.registered_nodes[nn]
-		if (def and def.groups and (def.groups.lava or def.groups.destroys_items == 1)) then
-			-- Special effect for lava
-			if def.groups.lava then
-				minetest.sound_play("builtin_item_lava", {pos = self.object:getpos(), gain = 0.5})
+		local lg = minetest.get_item_group(nn, "lava")
+		local fg = minetest.get_item_group(nn, "fire")
+		local dg = minetest.get_item_group(nn, "destroys_items")
+		if (def and (lg ~= 0 or fg ~= 0 or dg == 1)) then
+			if dg ~= 2 then
+				minetest.sound_play("builtin_item_lava", {pos = self.object:get_pos(), gain = 0.5})
 			end
+			self._removed = true
 			self.object:remove()
 			return
 		end

mods/ENTITIES/mcl_minecarts/README.txt

@@ -13,6 +13,10 @@ License of source code:
 -----------------------
 MIT License
 
+Copyright (C) 2012-2016 PilzAdam
+Copyright (C) 2014-2016 SmallJoker
+Copyright (C) 2012-2016 Various Minetest developers and contributors
+
 Authors/licenses of media files:
 -----------------------
 

mods/ENTITIES/mcl_minecarts/depends.txt

@@ -2,5 +2,10 @@ mcl_core
 mcl_sounds
 mcl_player
 mcl_achievements
-mesecons?
+mcl_chests
+mcl_furnaces
+mesecons_commandblock
+mcl_hoppers
+mcl_tnt
+mesecons
 doc_identifier?

mods/ENTITIES/mcl_minecarts/functions.lua

@@ -138,13 +138,3 @@ function mcl_minecarts:get_rail_direction(pos_, dir, ctrl, old_switch, railtype)
 	return {x=0, y=0, z=0}
 end
 
-function mcl_minecarts:boost_rail(pos, amount)
-	minetest.get_meta(pos):set_string("cart_acceleration", tostring(amount))
-	for _,obj_ in ipairs(minetest.get_objects_inside_radius(pos, 0.5)) do
-		if not obj_:is_player() and
-				obj_:get_luaentity() and
-				obj_:get_luaentity().name == "mcl_minecarts:minecart" then
-			obj_:get_luaentity():on_punch()
-		end
-	end
-end

mods/ENTITIES/mcl_minecarts/init.lua

@@ -1,324 +1,628 @@
 mcl_minecarts = {}
 mcl_minecarts.modpath = minetest.get_modpath("mcl_minecarts")
 mcl_minecarts.speed_max = 10
-
-local vector_floor = function(v)
-	return {
-		x = math.floor(v.x),
-		y = math.floor(v.y),
-		z = math.floor(v.z)
-	}
-end
+mcl_minecarts.check_float_time = 15
 
 dofile(mcl_minecarts.modpath.."/functions.lua")
 dofile(mcl_minecarts.modpath.."/rails.lua")
 
-mcl_minecarts.cart = {
-	physical = false,
-	collisionbox = {-10/16., -0.5, -10/16, 10/16, 0.25, 10/16},
-	visual = "mesh",
-	mesh = "mcl_minecarts_minecart.b3d",
-	visual_size = {x=1, y=1},
-	textures = {"mcl_minecarts_minecart.png"},
+-- Table for item-to-entity mapping. Keys: itemstring, Values: Corresponding entity ID
+local entity_mapping = {}
 
-	_driver = nil,
-	_punched = false, -- used to re-send _velocity and position
-	_velocity = {x=0, y=0, z=0}, -- only used on punch
-	_start_pos = nil, -- Used to calculate distance for “On A Rail” achievement
-	_old_dir = {x=0, y=0, z=0},
-	_old_pos = nil,
-	_old_switch = 0,
-	_railtype = nil,
-}
+local function register_entity(entity_id, mesh, textures, drop, on_rightclick)
+	local cart = {
+		physical = false,
+		collisionbox = {-10/16., -0.5, -10/16, 10/16, 0.25, 10/16},
+		visual = "mesh",
+		mesh = mesh,
+		visual_size = {x=1, y=1},
+		textures = textures,
 
-function mcl_minecarts.cart:on_rightclick(clicker)
-	if not clicker or not clicker:is_player() then
-		return
-	end
-	local player_name = clicker:get_player_name()
-	if self._driver and player_name == self._driver then
-		self._driver = nil
-		self._start_pos = nil
-		clicker:set_detach()
-	elseif not self._driver then
-		self._driver = player_name
-		self._start_pos = self.object:getpos()
-		mcl_player.player_attached[player_name] = true
-		clicker:set_attach(self.object, "", {x=0, y=3, z=0}, {x=0, y=0, z=0})
-	end
-end
+		on_rightclick = on_rightclick,
 
-function mcl_minecarts.cart:on_activate(staticdata, dtime_s)
-	self.object:set_armor_groups({immortal=1})
-end
+		_driver = nil, -- player who sits in and controls the minecart (only for minecart!)
+		_punched = false, -- used to re-send _velocity and position
+		_velocity = {x=0, y=0, z=0}, -- only used on punch
+		_start_pos = nil, -- Used to calculate distance for “On A Rail” achievement
+		_last_float_check = nil, -- timestamp of last time the cart was checked to be still on a rail
+		_old_dir = {x=0, y=0, z=0},
+		_old_pos = nil,
+		_old_vel = {x=0, y=0, z=0},
+		_old_switch = 0,
+		_railtype = nil,
+	}
 
-function mcl_minecarts.cart:on_punch(puncher, time_from_last_punch, tool_capabilities, direction)
-	local pos = self.object:getpos()
-	if not self._railtype then
-		local node = minetest.get_node(vector_floor(pos)).name
-		self._railtype = minetest.get_item_group(node, "connect_to_raillike")
-	end
-	
-	if not puncher or not puncher:is_player() then
-		local cart_dir = mcl_minecarts:get_rail_direction(pos, {x=1, y=0, z=0}, nil, nil, self._railtype)
-		if vector.equals(cart_dir, {x=0, y=0, z=0}) then
-			return
+	function cart:on_activate(staticdata, dtime_s)
+		local data = minetest.deserialize(staticdata)
+		if type(data) == "table" then
+			self._railtype = data._railtype
 		end
-		self._velocity = vector.multiply(cart_dir, 3)
-		self._old_pos = nil
-		self._punched = true
-		return
+		self.object:set_armor_groups({immortal=1})
 	end
 
-	if puncher:get_player_control().sneak then
-		if self._driver then
-			if self._old_pos then
-				self.object:setpos(self._old_pos)
+	function cart:on_punch(puncher, time_from_last_punch, tool_capabilities, direction)
+		local pos = self.object:get_pos()
+		if not self._railtype then
+			local node = minetest.get_node(vector.floor(pos)).name
+			self._railtype = minetest.get_item_group(node, "connect_to_raillike")
+		end
+
+		if not puncher or not puncher:is_player() then
+			local cart_dir = mcl_minecarts:get_rail_direction(pos, {x=1, y=0, z=0}, nil, nil, self._railtype)
+			if vector.equals(cart_dir, {x=0, y=0, z=0}) then
+				return
 			end
-			mcl_player.player_attached[self._driver] = nil
-			local player = minetest.get_player_by_name(self._driver)
-			if player then
-				player:set_detach()
-			end
-		end
-		
-		if not minetest.settings:get_bool("creative_mode") then
-			minetest.add_item(self.object:getpos(), "mcl_minecarts:minecart")
-		end
-		self.object:remove()
-		return
-	end
-	
-	local vel = self.object:getvelocity()
-	if puncher:get_player_name() == self._driver then
-		if math.abs(vel.x + vel.z) > 7 then
+			self._velocity = vector.multiply(cart_dir, 3)
+			self._old_pos = nil
+			self._punched = true
 			return
 		end
-	end
 
-	local punch_dir = mcl_minecarts:velocity_to_dir(puncher:get_look_dir())
-	punch_dir.y = 0
-	local cart_dir = mcl_minecarts:get_rail_direction(pos, punch_dir, nil, nil, self._railtype)
-	if vector.equals(cart_dir, {x=0, y=0, z=0}) then
-		return
-	end
-	
-	time_from_last_punch = math.min(time_from_last_punch, tool_capabilities.full_punch_interval)
-	local f = 3 * (time_from_last_punch / tool_capabilities.full_punch_interval)
-	
-	self._velocity = vector.multiply(cart_dir, f)
-	self._old_pos = nil
-	self._punched = true
-end
-
-function mcl_minecarts.cart:on_step(dtime)
-	local vel = self.object:getvelocity()
-	local update = {}
-	if self._punched then
-		vel = vector.add(vel, self._velocity)
-		self.object:setvelocity(vel)
-		self._old_dir.y = 0
-	elseif vector.equals(vel, {x=0, y=0, z=0}) then
-		return
-	end
-	
-	local dir, last_switch = nil, nil
-	local pos = self.object:getpos()
-	if self._old_pos and not self._punched then
-		local flo_pos = vector_floor(pos)
-		local flo_old = vector_floor(self._old_pos)
-		if vector.equals(flo_pos, flo_old) then
-			return
-		end
-	end
-	
-	local ctrl, player = nil, nil
-	if self._driver then
-		player = minetest.get_player_by_name(self._driver)
-		if player then
-			ctrl = player:get_player_control()
-		end
-	end
-	if self._old_pos then
-		local diff = vector.subtract(self._old_pos, pos)
-		for _,v in ipairs({"x","y","z"}) do
-			if math.abs(diff[v]) > 1.1 then
-				local expected_pos = vector.add(self._old_pos, self._old_dir)
-				dir, last_switch = mcl_minecarts:get_rail_direction(pos, self._old_dir, ctrl, self._old_switch, self._railtype)
-				if vector.equals(dir, {x=0, y=0, z=0}) then
-					dir = false
-					pos = vector.new(expected_pos)
-					update.pos = true
+		if puncher:get_player_control().sneak then
+			if self._driver then
+				if self._old_pos then
+					self.object:setpos(self._old_pos)
+				end
+				mcl_player.player_attached[self._driver] = nil
+				local player = minetest.get_player_by_name(self._driver)
+				if player then
+					player:set_detach()
+					player:set_eye_offset({x=0, y=0, z=0},{x=0, y=0, z=0})
 				end
-				break
 			end
-		end
-	end
 
-	if vel.y == 0 then
-		for _,v in ipairs({"x", "z"}) do
-			if vel[v] ~= 0 and math.abs(vel[v]) < 0.9 then
-				vel[v] = 0
-				update.vel = true
+			-- Disable detector rail
+			local rou_pos = vector.round(pos)
+			local node = minetest.get_node(rou_pos)
+			if node.name == "mcl_minecarts:detector_rail_on" then
+				local newnode = {name="mcl_minecarts:detector_rail", param2 = node.param2}
+				minetest.swap_node(rou_pos, newnode)
+				mesecon.receptor_off(rou_pos)
 			end
-		end
-	end
 
-	local cart_dir = mcl_minecarts:velocity_to_dir(vel)
-	local max_vel = mcl_minecarts.speed_max
-	if not dir then
-		dir, last_switch = mcl_minecarts:get_rail_direction(pos, cart_dir, ctrl, self._old_switch, self._railtype)
-	end
-	
-	local new_acc = {x=0, y=0, z=0}
-	if vector.equals(dir, {x=0, y=0, z=0}) then
-		vel = {x=0, y=0, z=0}
-		update.vel = true
-	else
-		-- If the direction changed
-		if dir.x ~= 0 and self._old_dir.z ~= 0 then
-			vel.x = dir.x * math.abs(vel.z)
-			vel.z = 0
-			pos.z = math.floor(pos.z + 0.5)
-			update.pos = true
-		end
-		if dir.z ~= 0 and self._old_dir.x ~= 0 then
-			vel.z = dir.z * math.abs(vel.x)
-			vel.x = 0
-			pos.x = math.floor(pos.x + 0.5)
-			update.pos = true
-		end
-		-- Up, down?
-		if dir.y ~= self._old_dir.y then
-			vel.y = dir.y * math.abs(vel.x + vel.z)
-			pos = vector.round(pos)
-			update.pos = true
-		end
-		
-		-- Slow down or speed up..
-		local acc = dir.y * -1.8
-		
-		local speed_mod = tonumber(minetest.get_meta(pos):get_string("cart_acceleration"))
-		if speed_mod and speed_mod ~= 0 then
-			if speed_mod > 0 then
-				for _,v in ipairs({"x","y","z"}) do
-					if math.abs(vel[v]) >= max_vel then
-						speed_mod = 0
-						break
+			-- Drop items and remove cart entity
+			if not minetest.settings:get_bool("creative_mode") then
+				for d=1, #drop do
+					minetest.add_item(self.object:get_pos(), drop[d])
+				end
+			elseif puncher and puncher:is_player() then
+				local inv = puncher:get_inventory()
+				for d=1, #drop do
+					if not inv:contains_item("main", drop[d]) then
+						inv:add_item("main", drop[d])
 					end
 				end
 			end
-			acc = acc + (speed_mod * 8)
-		else
-			acc = acc - 0.4
-		end
 
-		new_acc = vector.multiply(dir, acc)
-	end
-	
-	self.object:setacceleration(new_acc)
-	self._old_pos = vector.new(pos)
-	self._old_dir = vector.new(dir)
-	self._old_switch = last_switch
-	
-	-- Limits
-	for _,v in ipairs({"x","y","z"}) do
-		if math.abs(vel[v]) > max_vel then
-			vel[v] = mcl_minecarts:get_sign(vel[v]) * max_vel
-			update.vel = true
-		end
-	end
-
-	-- Give achievement when player reached a distance of 1000 nodes from the start position
-	if self._driver and (vector.distance(self._start_pos, pos) >= 1000) then
-		awards.unlock(self._driver, "mcl:onARail")
-	end
-
-	if update.pos or self._punched then
-		local yaw = 0
-		if dir.x < 0 then
-			yaw = 0.5
-		elseif dir.x > 0 then
-			yaw = 1.5
-		elseif dir.z < 0 then
-			yaw = 1
-		end
-		self.object:setyaw(yaw * math.pi)
-	end
-
-	if self._punched then
-		self._punched = false
-	end
-	
-	if not (update.vel or update.pos) then
-		return
-	end
-	
-	
-	local anim = {x=0, y=0}
-	if dir.y == -1 then
-		anim = {x=1, y=1}
-	elseif dir.y == 1 then
-		anim = {x=2, y=2}
-	end
-	self.object:set_animation(anim, 1, 0)
-	
-	self.object:setvelocity(vel)
-	if update.pos then
-		self.object:setpos(pos)
-	end
-	update = nil
-end
-
-minetest.register_entity("mcl_minecarts:minecart", mcl_minecarts.cart)
-minetest.register_craftitem("mcl_minecarts:minecart", {
-	description = "Minecart",
-	_doc_items_longdesc = "Minecarts can be used for a quick transportion on rails." .. "\n" ..
-			"Minecarts only ride on rails and always follow the tracks. At a T-junction with no straight way ahead, they turn left. The speed is affected by the rail type.",
-	_doc_items_usagehelp = "You can place the minecart on rails. Right-click it to enter it. Punch it to get it moving." .. "\n" ..
-			"To obtain the minecart, punch it while holding down the sneak key.",
-
-	inventory_image = "mcl_minecarts_minecart_normal.png",
-	wield_image = "mcl_minecarts_minecart_normal.png",
-	stack_max = 1,
-	on_place = function(itemstack, placer, pointed_thing)
-		if not pointed_thing.type == "node" then
+			self.object:remove()
 			return
 		end
 
-		-- Call on_rightclick if the pointed node defines it
-		local node = minetest.get_node(pointed_thing.under)
-		if placer and not placer:get_player_control().sneak then
-			if minetest.registered_nodes[node.name] and minetest.registered_nodes[node.name].on_rightclick then
-				return minetest.registered_nodes[node.name].on_rightclick(pointed_thing.under, node, placer, itemstack) or itemstack
+		local vel = self.object:getvelocity()
+		if puncher:get_player_name() == self._driver then
+			if math.abs(vel.x + vel.z) > 7 then
+				return
 			end
 		end
 
-		local railpos
-		if mcl_minecarts:is_rail(pointed_thing.under) then
-			railpos = pointed_thing.under
-		elseif mcl_minecarts:is_rail(pointed_thing.above) then
-			railpos = pointed_thing.under
-		else
+		local punch_dir = mcl_minecarts:velocity_to_dir(puncher:get_look_dir())
+		punch_dir.y = 0
+		local cart_dir = mcl_minecarts:get_rail_direction(pos, punch_dir, nil, nil, self._railtype)
+		if vector.equals(cart_dir, {x=0, y=0, z=0}) then
 			return
 		end
-		local cart = minetest.add_entity(railpos, "mcl_minecarts:minecart")
-		local railtype = minetest.get_item_group(node.name, "connect_to_raillike")
-		local cart_dir = mcl_minecarts:get_rail_direction(railpos, {x=1, y=0, z=0}, nil, nil, railtype)
-		cart:setyaw(minetest.dir_to_yaw(cart_dir))
 
-		if not minetest.settings:get_bool("creative_mode") then
-			itemstack:take_item()
+		time_from_last_punch = math.min(time_from_last_punch, tool_capabilities.full_punch_interval)
+		local f = 3 * (time_from_last_punch / tool_capabilities.full_punch_interval)
+
+		self._velocity = vector.multiply(cart_dir, f)
+		self._old_pos = nil
+		self._punched = true
+	end
+
+	function cart:on_step(dtime)
+		local vel = self.object:getvelocity()
+		local update = {}
+		if self._last_float_check == nil then
+			self._last_float_check = 0
+		else
+			self._last_float_check = self._last_float_check + dtime
 		end
-		return itemstack
-	end,
-	groups = { minecart = 1, transport = 1},
-})
+		local pos, rou_pos, node
+		-- Drop minecart if it isn't on a rail anymore
+		if self._last_float_check >= mcl_minecarts.check_float_time then
+			pos = self.object:get_pos()
+			rou_pos = vector.round(pos)
+			node = minetest.get_node(rou_pos)
+			local g = minetest.get_item_group(node.name, "connect_to_raillike")
+			if g ~= self._railtype and self._railtype ~= nil then
+				-- Detach driver
+				if self._driver then
+					if self._old_pos then
+						self.object:setpos(self._old_pos)
+					end
+					mcl_player.player_attached[self._driver] = nil
+					local player = minetest.get_player_by_name(self._driver)
+					if player then
+						player:set_detach()
+						player:set_eye_offset({x=0, y=0, z=0},{x=0, y=0, z=0})
+					end
+				end
 
-if minetest.get_modpath("doc_identifier") ~= nil then
-	doc.sub.identifier.register_object("mcl_minecarts:minecart", "craftitems", "mcl_minecarts:minecart")
+				-- Drop items and remove cart entity
+					if not minetest.settings:get_bool("creative_mode") then
+					for d=1, #drop do
+						minetest.add_item(self.object:get_pos(), drop[d])
+					end
+				end
+
+				self.object:remove()
+				return
+			end
+			self._last_float_check = 0
+		end
+
+		if self._punched then
+			vel = vector.add(vel, self._velocity)
+			self.object:setvelocity(vel)
+			self._old_dir.y = 0
+		elseif vector.equals(vel, {x=0, y=0, z=0}) then
+			return
+		end
+
+		local dir, last_switch = nil, nil
+		if not pos then
+			pos = self.object:get_pos()
+		end
+		if self._old_pos and not self._punched then
+			local flo_pos = vector.floor(pos)
+			local flo_old = vector.floor(self._old_pos)
+			if vector.equals(flo_pos, flo_old) then
+				return
+				-- Prevent querying the same node over and over again
+			end
+
+			if not rou_pos then
+				rou_pos = vector.round(pos)
+			end
+			rou_old = vector.round(self._old_pos)
+			if not node then
+				node = minetest.get_node(rou_pos)
+			end
+			local node_old = minetest.get_node(rou_old)
+
+			-- Update detector rails
+			if node.name == "mcl_minecarts:detector_rail" then
+				local newnode = {name="mcl_minecarts:detector_rail_on", param2 = node.param2}
+				minetest.swap_node(rou_pos, newnode)
+				mesecon.receptor_on(rou_pos)
+			end
+			if node_old.name == "mcl_minecarts:detector_rail_on" then
+				local newnode = {name="mcl_minecarts:detector_rail", param2 = node_old.param2}
+				minetest.swap_node(rou_old, newnode)
+				mesecon.receptor_off(rou_old)
+			end
+		end
+
+		local ctrl, player = nil, nil
+		if self._driver then
+			player = minetest.get_player_by_name(self._driver)
+			if player then
+				ctrl = player:get_player_control()
+			end
+		end
+
+		-- Stop cart if velocity vector flips
+		if self._old_vel and self._old_vel.y == 0 and
+				(self._old_vel.x * vel.x < 0 or self._old_vel.z * vel.z < 0) then
+			self._old_vel = {x = 0, y = 0, z = 0}
+			self._old_pos = pos
+			self.object:setvelocity(vector.new())
+			self.object:setacceleration(vector.new())
+			return
+		end
+		self._old_vel = vector.new(vel)
+
+		if self._old_pos then
+			local diff = vector.subtract(self._old_pos, pos)
+			for _,v in ipairs({"x","y","z"}) do
+				if math.abs(diff[v]) > 1.1 then
+					local expected_pos = vector.add(self._old_pos, self._old_dir)
+					dir, last_switch = mcl_minecarts:get_rail_direction(pos, self._old_dir, ctrl, self._old_switch, self._railtype)
+					if vector.equals(dir, {x=0, y=0, z=0}) then
+						dir = false
+						pos = vector.new(expected_pos)
+						update.pos = true
+					end
+					break
+				end
+			end
+		end
+
+		if vel.y == 0 then
+			for _,v in ipairs({"x", "z"}) do
+				if vel[v] ~= 0 and math.abs(vel[v]) < 0.9 then
+					vel[v] = 0
+					update.vel = true
+				end
+			end
+		end
+
+		local cart_dir = mcl_minecarts:velocity_to_dir(vel)
+		local max_vel = mcl_minecarts.speed_max
+		if not dir then
+			dir, last_switch = mcl_minecarts:get_rail_direction(pos, cart_dir, ctrl, self._old_switch, self._railtype)
+		end
+
+		local new_acc = {x=0, y=0, z=0}
+		if vector.equals(dir, {x=0, y=0, z=0}) then
+			vel = {x=0, y=0, z=0}
+			update.vel = true
+		else
+			-- If the direction changed
+			if dir.x ~= 0 and self._old_dir.z ~= 0 then
+				vel.x = dir.x * math.abs(vel.z)
+				vel.z = 0
+				pos.z = math.floor(pos.z + 0.5)
+				update.pos = true
+			end
+			if dir.z ~= 0 and self._old_dir.x ~= 0 then
+				vel.z = dir.z * math.abs(vel.x)
+				vel.x = 0
+				pos.x = math.floor(pos.x + 0.5)
+				update.pos = true
+			end
+			-- Up, down?
+			if dir.y ~= self._old_dir.y then
+				vel.y = dir.y * math.abs(vel.x + vel.z)
+				pos = vector.round(pos)
+				update.pos = true
+			end
+
+			-- Slow down or speed up
+			local acc = dir.y * -1.8
+
+			local speed_mod = minetest.registered_nodes[minetest.get_node(pos).name]._rail_acceleration
+			if speed_mod and speed_mod ~= 0 then
+				acc = acc + speed_mod
+			else
+				acc = acc - 0.4
+			end
+
+			new_acc = vector.multiply(dir, acc)
+		end
+
+		self.object:setacceleration(new_acc)
+		self._old_pos = vector.new(pos)
+		self._old_dir = vector.new(dir)
+		self._old_switch = last_switch
+
+		-- Limits
+		for _,v in ipairs({"x","y","z"}) do
+			if math.abs(vel[v]) > max_vel then
+				vel[v] = mcl_minecarts:get_sign(vel[v]) * max_vel
+				new_acc[v] = 0
+				update.vel = true
+			end
+		end
+
+		-- Give achievement when player reached a distance of 1000 nodes from the start position
+		if self._driver and (vector.distance(self._start_pos, pos) >= 1000) then
+			awards.unlock(self._driver, "mcl:onARail")
+		end
+
+
+		if update.pos or self._punched then
+			local yaw = 0
+			if dir.x < 0 then
+				yaw = 0.5
+			elseif dir.x > 0 then
+				yaw = 1.5
+			elseif dir.z < 0 then
+				yaw = 1
+			end
+			self.object:setyaw(yaw * math.pi)
+		end
+
+		if self._punched then
+			self._punched = false
+		end
+
+		if not (update.vel or update.pos) then
+			return
+		end
+
+
+		local anim = {x=0, y=0}
+		if dir.y == -1 then
+			anim = {x=1, y=1}
+		elseif dir.y == 1 then
+			anim = {x=2, y=2}
+		end
+		self.object:set_animation(anim, 1, 0)
+
+		self.object:setvelocity(vel)
+		if update.pos then
+			self.object:setpos(pos)
+		end
+		update = nil
+	end
+
+	function cart:get_staticdata()
+		return minetest.serialize({_railtype = self._railtype})
+	end
+
+	minetest.register_entity(entity_id, cart)
 end
 
+-- Place a minecart at pointed_thing
+mcl_minecarts.place_minecart = function(itemstack, pointed_thing)
+	if not pointed_thing.type == "node" then
+		return
+	end
+
+	local railpos, node
+	if mcl_minecarts:is_rail(pointed_thing.under) then
+		railpos = pointed_thing.under
+		node = minetest.get_node(pointed_thing.under)
+	elseif mcl_minecarts:is_rail(pointed_thing.above) then
+		railpos = pointed_thing.above
+		node = minetest.get_node(pointed_thing.above)
+	else
+		return
+	end
+
+	-- Activate detector rail
+	if node.name == "mcl_minecarts:detector_rail" then
+		local newnode = {name="mcl_minecarts:detector_rail_on", param2 = node.param2}
+		minetest.swap_node(railpos, newnode)
+		mesecon.receptor_on(railpos)
+	end
+
+	local entity_id = entity_mapping[itemstack:get_name()]
+	local cart = minetest.add_entity(railpos, entity_id)
+	local railtype = minetest.get_item_group(node.name, "connect_to_raillike")
+	local le = cart:get_luaentity()
+	if le ~= nil then
+		le._railtype = railtype
+	end
+	local cart_dir = mcl_minecarts:get_rail_direction(railpos, {x=1, y=0, z=0}, nil, nil, railtype)
+	cart:setyaw(minetest.dir_to_yaw(cart_dir))
+
+	if not minetest.settings:get_bool("creative_mode") then
+		itemstack:take_item()
+	end
+	return itemstack
+end
+
+
+local register_craftitem = function(itemstring, entity_id, description, longdesc, usagehelp, icon, creative)
+	entity_mapping[itemstring] = entity_id
+
+	local groups = { minecart = 1, transport = 1 }
+	if creative == false then
+		groups.not_in_creative_inventory = 1
+	end
+	local def = {
+		stack_max = 1,
+		on_place = function(itemstack, placer, pointed_thing)
+			if not pointed_thing.type == "node" then
+				return
+			end
+
+			-- Call on_rightclick if the pointed node defines it
+			local node = minetest.get_node(pointed_thing.under)
+			if placer and not placer:get_player_control().sneak then
+				if minetest.registered_nodes[node.name] and minetest.registered_nodes[node.name].on_rightclick then
+					return minetest.registered_nodes[node.name].on_rightclick(pointed_thing.under, node, placer, itemstack) or itemstack
+				end
+			end
+
+			return mcl_minecarts.place_minecart(itemstack, pointed_thing)
+		end,
+		_on_dispense = function(stack, pos, droppos, dropnode, dropdir)
+			-- Place minecart as entity on rail. If there's no rail, just drop it.
+			local placed
+			if minetest.get_item_group(dropnode.name, "rail") ~= 0 then
+				-- FIXME: This places minecarts even if the spot is already occupied
+				local pointed_thing = { under = droppos, above = { x=droppos.x, y=droppos.y+1, z=droppos.z } }
+				placed = mcl_minecarts.place_minecart(stack, pointed_thing)
+			end
+			if placed == nil then
+				-- Drop item
+				minetest.add_item(droppos, stack)
+			end
+		end,
+		groups = groups,
+	}
+	def.description = description
+	def._doc_items_longdesc = longdesc
+	def._doc_items_usagehelp = usagehelp
+	def.inventory_image = icon
+	def.wield_image = icon
+	minetest.register_craftitem(itemstring, def)
+end
+
+--[[
+Register a minecart
+* itemstring: Itemstring of minecart item
+* entity_id: ID of minecart entity
+* description: Item name / description
+* longdesc: Long help text
+* usagehelp: Usage help text
+* mesh: Minecart mesh
+* textures: Minecart textures table
+* icon: Item icon
+* drop: Dropped items after destroying minecart
+* on_rightclick: Called after rightclick
+* on_activate_by_rail: Called when above activator rail
+* creative: If false, don't show in Creative Inventory
+]]
+local function register_minecart(itemstring, entity_id, description, longdesc, usagehelp, mesh, textures, icon, drop, on_rightclick, on_activate_by_rail, creative)
+	register_entity(entity_id, mesh, textures, drop, on_rightclick)
+	register_craftitem(itemstring, entity_id, description, longdesc, usagehelp, icon, creative)
+	if minetest.get_modpath("doc_identifier") ~= nil then
+		doc.sub.identifier.register_object(entity_id, "craftitems", itemstring)
+	end
+end
+
+-- Minecart
+register_minecart(
+	"mcl_minecarts:minecart",
+	"mcl_minecarts:minecart",
+	"Minecart",
+	"Minecarts can be used for a quick transportion on rails." .. "\n" ..
+	"Minecarts only ride on rails and always follow the tracks. At a T-junction with no straight way ahead, they turn left. The speed is affected by the rail type.",
+	"You can place the minecart on rails. Right-click it to enter it. Punch it to get it moving." .. "\n" ..
+	"To obtain the minecart, punch it while holding down the sneak key.",
+	"mcl_minecarts_minecart.b3d",
+	{"mcl_minecarts_minecart.png"},
+	"mcl_minecarts_minecart_normal.png",
+	{"mcl_minecarts:minecart"},
+	function(self, clicker)
+		local name = clicker:get_player_name()
+		if not clicker or not clicker:is_player() then
+			return
+		end
+		local player_name = clicker:get_player_name()
+		if self._driver and player_name == self._driver then
+			self._driver = nil
+			self._start_pos = nil
+			clicker:set_detach()
+			clicker:set_eye_offset({x=0, y=0, z=0},{x=0, y=0, z=0})
+		elseif not self._driver then
+			self._driver = player_name
+			self._start_pos = self.object:get_pos()
+			mcl_player.player_attached[player_name] = true
+			clicker:set_attach(self.object, "", {x=0, y=8.25, z=-2}, {x=0, y=0, z=0})
+			mcl_player.player_attached[name] = true
+			minetest.after(0.2, function(name)
+				local player = minetest.get_player_by_name(name)
+				if player then
+					mcl_player.player_set_animation(player, "sit" , 30)
+					player:set_eye_offset({x=0, y=-5.5, z=0},{x=0, y=-4, z=0})
+				end
+			end, name)
+		end
+	end
+)
+
+-- Minecart with Chest
+register_minecart(
+	"mcl_minecarts:chest_minecart",
+	"mcl_minecarts:chest_minecart",
+	"Minecart with Chest",
+	nil, nil,
+	"mcl_minecarts_minecart_chest.b3d",
+	{ "mcl_chests_normal.png", "mcl_minecarts_minecart.png" },
+	"mcl_minecarts_minecart_chest.png",
+	{"mcl_minecarts:minecart", "mcl_chests:chest"},
+	nil, nil, false)
+
+-- Minecart with Furnace
+register_minecart(
+	"mcl_minecarts:furnace_minecart",
+	"mcl_minecarts:furnace_minecart",
+	"Minecart with Furnace",
+	nil, nil,
+	"mcl_minecarts_minecart_block.b3d",
+	{
+		"default_furnace_top.png",
+		"default_furnace_top.png",
+		"default_furnace_front.png",
+		"default_furnace_side.png",
+		"default_furnace_side.png",
+		"default_furnace_side.png",
+		"mcl_minecarts_minecart.png",
+	},
+	"mcl_minecarts_minecart_furnace.png",
+	{"mcl_minecarts:minecart", "mcl_furnaces:furnace"},
+	-- Feed furnace with coal
+	function(self, clicker)
+		if not clicker or not clicker:is_player() then
+			return
+		end
+		if not self._fueltime then
+			self._fueltime = 0
+		end
+		local held = clicker:get_wielded_item()
+		if minetest.get_item_group(held:get_name(), "coal") == 1 then
+			self._fueltime = self._fueltime + 180
+
+			if not minetest.settings:get_bool("creative_mode") then
+				held:take_item()
+				local index = clicker:get_wielded_index()
+				local inv = clicker:get_inventory()
+				inv:set_stack("main", index, held)
+			end
+
+			-- DEBUG
+			minetest.chat_send_player(clicker:get_player_name(), "Fuel: " .. tostring(self._fueltime))
+		end
+	end, nil, false
+)
+
+-- Minecart with Command Block
+register_minecart(
+	"mcl_minecarts:command_block_minecart",
+	"mcl_minecarts:command_block_minecart",
+	"Minecart with Command Block",
+	nil, nil,
+	"mcl_minecarts_minecart_block.b3d",
+	{
+		"jeija_commandblock_off.png^[verticalframe:2:0",
+		"jeija_commandblock_off.png^[verticalframe:2:0",
+		"jeija_commandblock_off.png^[verticalframe:2:0",
+		"jeija_commandblock_off.png^[verticalframe:2:0",
+		"jeija_commandblock_off.png^[verticalframe:2:0",
+		"jeija_commandblock_off.png^[verticalframe:2:0",
+		"mcl_minecarts_minecart.png",
+	},
+	"mcl_minecarts_minecart_command_block.png",
+	{"mcl_minecarts:minecart"},
+	nil, nil, false
+)
+
+-- Minecart with Hopper
+register_minecart(
+	"mcl_minecarts:hopper_minecart",
+	"mcl_minecarts:hopper_minecart",
+	"Minecart with Hopper",
+	nil, nil,
+	"mcl_minecarts_minecart_hopper.b3d",
+	{
+		"mcl_hoppers_hopper_inside.png",
+		"mcl_minecarts_minecart.png",
+		"mcl_hoppers_hopper_outside.png",
+		"mcl_hoppers_hopper_top.png",
+	},
+	"mcl_minecarts_minecart_hopper.png",
+	{"mcl_minecarts:minecart", "mcl_hoppers:hopper"},
+	nil, nil, false
+)
+
+-- Minecart with TNT
+register_minecart(
+	"mcl_minecarts:tnt_minecart",
+	"mcl_minecarts:tnt_minecart",
+	"Minecart with TNT",
+	nil, nil,
+	"mcl_minecarts_minecart_block.b3d",
+	{
+		"default_tnt_top.png",
+		"default_tnt_bottom.png",
+		"default_tnt_side.png",
+		"default_tnt_side.png",
+		"default_tnt_side.png",
+		"default_tnt_side.png",
+		"mcl_minecarts_minecart.png",
+	},
+	"mcl_minecarts_minecart_tnt.png",
+	{"mcl_minecarts:minecart", "mcl_tnt:tnt"},
+	nil, nil, false
+)
+
+
 minetest.register_craft({
 	output = "mcl_minecarts:minecart",
 	recipe = {
@@ -326,3 +630,38 @@ minetest.register_craft({
 		{"mcl_core:iron_ingot", "mcl_core:iron_ingot", "mcl_core:iron_ingot"},
 	},
 })
+
+-- TODO: Re-enable crafting of special minecarts when they have been implemented
+if false then
+minetest.register_craft({
+	output = "mcl_minecarts:hopper_minecart",
+	recipe = {
+		{"mcl_hoppers:hopper"},
+		{"mcl_minecarts:minecart"},
+	},
+})
+
+minetest.register_craft({
+	output = "mcl_minecarts:chest_minecart",
+	recipe = {
+		{"mcl_chests:chest"},
+		{"mcl_minecarts:minecart"},
+	},
+})
+
+minetest.register_craft({
+	output = "mcl_minecarts:tnt_minecart",
+	recipe = {
+		{"mcl_tnt:tnt"},
+		{"mcl_minecarts:minecart"},
+	},
+})
+
+minetest.register_craft({
+	output = "mcl_minecarts:furnace_minecart",
+	recipe = {
+		{"mcl_furnaces:furnace"},
+		{"mcl_minecarts:minecart"},
+	},
+})
+end

mods/ENTITIES/mcl_minecarts/rails.lua

@@ -1,29 +1,192 @@
+-- Template rail function
+local register_rail = function(itemstring, tiles, def_extras, creative)
+	local groups = {handy=1,pickaxey=1, attached_node=1,rail=1,connect_to_raillike=1,dig_by_water=1,destroy_by_lava_flow=1, transport=1}
+	if creative == false then
+		groups.not_in_creative_inventory = 1
+	end
+	local ndef = {
+		drawtype = "raillike",
+		tiles = tiles,
+		is_ground_content = false,
+		inventory_image = tiles[1],
+		wield_image = tiles[1],
+		paramtype = "light",
+		walkable = false,
+		selection_box = {
+			type = "fixed",
+			fixed = {-1/2, -1/2, -1/2, 1/2, -1/2+1/16, 1/2},
+		},
+		stack_max = 64,
+		groups = groups,
+		sounds = mcl_sounds.node_sound_metal_defaults(),
+		_mcl_blast_resistance = 3.5,
+		_mcl_hardness = 0.7,
+		after_destruct = function(pos)
+			-- Scan for minecarts in this pos and force them to execute their "floating" check.
+			-- Normally, this will make them drop.
+			local objs = minetest.get_objects_inside_radius(pos, 1)
+			for o=1, #objs do
+				local le = objs[o]:get_luaentity()
+				if le then
+					-- All entities in this mod are minecarts, so this works
+					if string.sub(le.name, 1, 14) == "mcl_minecarts:" then
+						le._last_float_check = mcl_minecarts.check_float_time
+					end
+				end
+			end
+		end,
+	}
+	if def_extras then
+		for k,v in pairs(def_extras) do
+			ndef[k] = v
+		end
+	end
+	minetest.register_node(itemstring, ndef)
+end
+
+-- Redstone rules
+local rail_rules_long =
+{{x=-1,  y= 0, z= 0, spread=true},
+ {x= 1,  y= 0, z= 0, spread=true},
+ {x= 0,  y=-1, z= 0, spread=true},
+ {x= 0,  y= 1, z= 0, spread=true},
+ {x= 0,  y= 0, z=-1, spread=true},
+ {x= 0,  y= 0, z= 1, spread=true},
+
+ {x= 1, y= 1, z= 0},
+ {x= 1, y=-1, z= 0},
+ {x=-1, y= 1, z= 0},
+ {x=-1, y=-1, z= 0},
+ {x= 0, y= 1, z= 1},
+ {x= 0, y=-1, z= 1},
+ {x= 0, y= 1, z=-1},
+ {x= 0, y=-1, z=-1}}
+
+local rail_rules_short = mesecon.rules.pplate
+
 local railuse = "Place them on the ground to build your railway, the rails will automatically connect to each other and will turn into curves, T-junctions, crossings and slopes as needed."
 
 -- Normal rail
-minetest.register_node("mcl_minecarts:rail", {
-	description = "Rail",
-	_doc_items_longdesc = "Rails can be used to build transport tracks for minecarts. Normal rails slightly slow down minecarts due to friction.",
-	_doc_items_usagehelp = railuse,
-	drawtype = "raillike",
-	tiles = {"default_rail.png", "default_rail_curved.png", "default_rail_t_junction.png", "default_rail_crossing.png"},
-	is_ground_content = false,
-	inventory_image = "default_rail.png",
-	wield_image = "default_rail.png",
-	paramtype = "light",
-	walkable = false,
-	selection_box = {
-		type = "fixed",
-                -- but how to specify the dimensions for curved and sideways rails?
-                fixed = {-1/2, -1/2, -1/2, 1/2, -1/2+1/16, 1/2},
-	},
-	stack_max = 64,
-	groups = {handy=1,pickaxey=1, attached_node=1,rail=1,connect_to_raillike=1,dig_by_water=1,destroy_by_lava_flow=1,transport=1},
-	sounds = mcl_sounds.node_sound_metal_defaults(),
-	_mcl_blast_resistance = 3.5,
-	_mcl_hardness = 0.7,
-})
+register_rail("mcl_minecarts:rail",
+	{"default_rail.png", "default_rail_curved.png", "default_rail_t_junction.png", "default_rail_crossing.png"},
+	{
+		description = "Rail",
+		_doc_items_longdesc = "Rails can be used to build transport tracks for minecarts. Normal rails slightly slow down minecarts due to friction.",
+		_doc_items_usagehelp = railuse,
+	}
+)
 
+-- Powered rail (off = brake mode)
+register_rail("mcl_minecarts:golden_rail",
+	{"mcl_minecarts_rail_golden.png", "mcl_minecarts_rail_golden_curved.png", "mcl_minecarts_rail_golden_t_junction.png", "mcl_minecarts_rail_golden_crossing.png"},
+	{
+		description = "Powered Rail",
+		_doc_items_longdesc = "Rails can be used to build transport tracks for minecarts. Powered rails are able to accelerate and brake minecarts.",
+		_doc_items_usagehelp = railuse .. "\n" .. "Without redstone power, the rail will brake minecarts. To make this rail accelerate minecarts, power it with redstone power.",
+		_rail_acceleration = -3,
+		mesecons = {
+			conductor = {
+				state = mesecon.state.off,
+				offstate = "mcl_minecarts:golden_rail",
+				onstate = "mcl_minecarts:golden_rail_on",
+				rules = rail_rules_long,
+			},
+		},
+	}
+)
+
+-- Powered rail (on = acceleration mode)
+register_rail("mcl_minecarts:golden_rail_on",
+	{"mcl_minecarts_rail_golden_powered.png", "mcl_minecarts_rail_golden_curved_powered.png", "mcl_minecarts_rail_golden_t_junction_powered.png", "mcl_minecarts_rail_golden_crossing_powered.png"},
+	{
+		_doc_items_create_entry = false,
+		_rail_acceleration = 4,
+		mesecons = {
+			conductor = {
+				state = mesecon.state.on,
+				offstate = "mcl_minecarts:golden_rail",
+				onstate = "mcl_minecarts:golden_rail_on",
+				rules = rail_rules_long,
+			},
+		},
+		drop = "mcl_minecarts:golden_rail",
+	},
+	false
+)
+
+-- Activator rail (off)
+register_rail("mcl_minecarts:activator_rail",
+	{"mcl_minecarts_rail_activator.png", "mcl_minecarts_rail_activator_curved.png", "mcl_minecarts_rail_activator_t_junction.png", "mcl_minecarts_rail_activator_crossing.png"},
+	{
+		description = "Activator Rail",
+		_doc_items_longdesc = "Rails can be used to build transport tracks for minecarts. Activator rails are used to activate special minecarts.",
+		_doc_items_usagehelp = railuse .. "\n" .. "To make this rail activate minecarts, power it with redstone power and send a minecart over this piece of rail.",
+		mesecons = {
+			conductor = {
+				state = mesecon.state.off,
+				offstate = "mcl_minecarts:activator_rail",
+				onstate = "mcl_minecarts:activator_rail_on",
+				rules = rail_rules_long,
+			},
+		},
+	},
+	-- Hidden from creative because no cart is using this rail so far.
+	-- TODO: Remove this when the activator rail has become useful.
+	false
+)
+
+-- Activator rail (on)
+register_rail("mcl_minecarts:activator_rail_on",
+	{"mcl_minecarts_rail_activator_powered.png", "mcl_minecarts_rail_activator_curved_powered.png", "mcl_minecarts_rail_activator_t_junction_powered.png", "mcl_minecarts_rail_activator_crossing_powered.png"},
+	{
+		_doc_items_create_entry = false,
+		mesecons = {
+			conductor = {
+				state = mesecon.state.on,
+				offstate = "mcl_minecarts:activator_rail",
+				onstate = "mcl_minecarts:activator_rail_on",
+				rules = rail_rules_long,
+			},
+		},
+		drop = "mcl_minecarts:activator_rail",
+	},
+	false
+)
+
+-- Detector rail (off)
+register_rail("mcl_minecarts:detector_rail",
+	{"mcl_minecarts_rail_detector.png", "mcl_minecarts_rail_detector_curved.png", "mcl_minecarts_rail_detector_t_junction.png", "mcl_minecarts_rail_detector_crossing.png"},
+	{
+		description = "Detector Rail",
+		_doc_items_longdesc = "Rails can be used to build transport tracks for minecarts. A detector rail is able to detect a minecart above it and powers redstone mechanisms.",
+		_doc_items_usagehelp = railuse .. "\n" .. "To detect a minecart and provide redstone power, connect it to redstone trails or redstone mechanisms and send any minecart over the rail.",
+		mesecons = {
+			receptor = {
+				state = mesecon.state.off,
+				rules = rail_rules_short,
+			},
+		},
+	}
+)
+
+-- Detector rail (on)
+register_rail("mcl_minecarts:detector_rail_on",
+	{"mcl_minecarts_rail_detector_powered.png", "mcl_minecarts_rail_detector_curved_powered.png", "mcl_minecarts_rail_detector_t_junction_powered.png", "mcl_minecarts_rail_detector_crossing_powered.png"},
+	{
+		_doc_items_create_entry = false,
+		mesecons = {
+			receptor = {
+				state = mesecon.state.on,
+				rules = rail_rules_short,
+			},
+		},
+		drop = "mcl_minecarts:detector_rail",
+	},
+	false
+)
+
+
+-- Crafting
 minetest.register_craft({
 	output = 'mcl_minecarts:rail 16',
 	recipe = {
@@ -33,46 +196,6 @@ minetest.register_craft({
 	}
 })
 
--- Rail to speed up
-minetest.register_node("mcl_minecarts:golden_rail", {
-	description = "Powered Rail",
-	_doc_items_longdesc = "Rails can be used to build transport tracks for minecarts. Powered rails will accelerate moving minecarts, up to a maximum speed.",
-	_doc_items_usagehelp = railuse,
-	drawtype = "raillike",
-	tiles = {"carts_rail_pwr.png", "carts_rail_curved_pwr.png", "carts_rail_t_junction_pwr.png", "carts_rail_crossing_pwr.png"},
-	inventory_image = "carts_rail_pwr.png",
-	wield_image = "carts_rail_pwr.png",
-	paramtype = "light",
-	is_ground_content = false,
-	walkable = false,
-	selection_box = {
-		type = "fixed",
-		-- but how to specify the dimensions for curved and sideways rails?
-		fixed = {-1/2, -1/2, -1/2, 1/2, -1/2+1/16, 1/2},
-	},
-	groups = {handy=1,pickaxey=1, attached_node = 1, rail = 1, connect_to_raillike = 1, dig_by_water = 1,destroy_by_lava_flow=1, transport = 1},
-	
-	after_place_node = function(pos, placer, itemstack)
-		if not mesecon then
-			minetest.get_meta(pos):set_string("cart_acceleration", "0.5")
-		end
-	end,
-	sounds = mcl_sounds.node_sound_metal_defaults(),
-	mesecons = {
-		effector = {
-			action_on = function(pos, node)
-				mcl_minecarts:boost_rail(pos, 0.5)
-			end,
-			
-			action_off = function(pos, node)
-				minetest.get_meta(pos):set_string("cart_acceleration", "0")
-			end,
-		},
-	},
-	_mcl_blast_resistance = 3.5,
-	_mcl_hardness = 0.7,
-})
-
 minetest.register_craft({
 	output = "mcl_minecarts:golden_rail 6",
 	recipe = {
@@ -82,3 +205,31 @@ minetest.register_craft({
 	}
 })
 
+-- Activator rail crafting is disabled until it becomes useful.
+-- TODO: Enable crafting as needed.
+if false then
+minetest.register_craft({
+	output = "mcl_minecarts:activator_rail 6",
+	recipe = {
+		{"mcl_core:iron_ingot", "mcl_core:stick", "mcl_core:iron_ingot"},
+		{"mcl_core:iron_ingot", "mesecons_torch:mesecon_torch_on", "mcl_core:iron_ingot"},
+		{"mcl_core:iron_ingot", "mcl_core:stick", "mcl_core:iron_ingot"},
+	}
+})
+end
+
+minetest.register_craft({
+	output = "mcl_minecarts:detector_rail 6",
+	recipe = {
+		{"mcl_core:iron_ingot", "", "mcl_core:iron_ingot"},
+		{"mcl_core:iron_ingot", "mesecons_pressureplates:pressure_plate_stone_off", "mcl_core:iron_ingot"},
+		{"mcl_core:iron_ingot", "mesecons:redstone", "mcl_core:iron_ingot"},
+	}
+})
+
+
+-- Aliases
+if minetest.get_modpath("doc") then
+	doc.add_entry_alias("nodes", "mcl_minecarts:golden_rail", "nodes", "mcl_minecarts:golden_rail_on")
+end
+