Move node related functions to mods/CORE/mcl_util/nodes.lua

This commit is contained in:
teknomunk 2024-05-22 19:51:47 +00:00
parent f46b99772b
commit d1af7d04da
2 changed files with 457 additions and 451 deletions

View File

@ -1,6 +1,9 @@
mcl_util = {}
dofile(minetest.get_modpath(minetest.get_current_modname()).."/roman_numerals.lua")
local modname = minetest.get_current_modname()
local modpath = minetest.get_modpath(modname)
dofile(modpath.."/roman_numerals.lua")
dofile(modpath.."/nodes.lua")
-- Updates all values in t using values from to*.
function table.update(t, ...)
@ -112,24 +115,6 @@ function mcl_util.validate_vector (vect)
return false
end
-- Minetest 5.3.0 or less can only measure the light level. This came in at 5.4
-- This function has been known to fail in multiple places so the error handling is added increase safety and improve
-- debugging. See:
-- https://git.minetest.land/VoxeLibre/VoxeLibre/issues/1392
function mcl_util.get_natural_light (pos, time)
local status, retVal = pcall(minetest.get_natural_light, pos, time)
if status then
return retVal
else
minetest.log("warning", "Failed to get natural light at pos: " .. dump(pos) .. ", time: " .. dump(time))
if (pos) then
local node = minetest.get_node(pos)
minetest.log("warning", "Node at pos: " .. dump(node.name))
end
end
return 0
end
function mcl_util.file_exists(name)
if type(name) ~= "string" then return end
local f = io.open(name)
@ -140,119 +125,6 @@ function mcl_util.file_exists(name)
return true
end
-- Based on minetest.rotate_and_place
--[[
Attempt to predict the desired orientation of the pillar-like node
defined by `itemstack`, and place it accordingly in one of 3 possible
orientations (X, Y or Z).
Stacks are handled normally if the `infinitestacks`
field is false or omitted (else, the itemstack is not changed).
* `invert_wall`: if `true`, place wall-orientation on the ground and ground-
orientation on wall
This function is a simplified version of minetest.rotate_and_place.
The Minetest function is seen as inappropriate because this includes mirror
images of possible orientations, causing problems with pillar shadings.
]]
function mcl_util.rotate_axis_and_place(itemstack, placer, pointed_thing, infinitestacks, invert_wall)
local unode = minetest.get_node_or_nil(pointed_thing.under)
if not unode then
return
end
local undef = minetest.registered_nodes[unode.name]
if undef and undef.on_rightclick and not invert_wall then
undef.on_rightclick(pointed_thing.under, unode, placer,
itemstack, pointed_thing)
return
end
local fdir = minetest.dir_to_facedir(placer:get_look_dir())
local wield_name = itemstack:get_name()
local above = pointed_thing.above
local under = pointed_thing.under
local is_x = (above.x ~= under.x)
local is_y = (above.y ~= under.y)
local is_z = (above.z ~= under.z)
local anode = minetest.get_node_or_nil(above)
if not anode then
return
end
local pos = pointed_thing.above
local node = anode
if undef and undef.buildable_to then
pos = pointed_thing.under
node = unode
end
if minetest.is_protected(pos, placer:get_player_name()) then
minetest.record_protection_violation(pos, placer:get_player_name())
return
end
local ndef = minetest.registered_nodes[node.name]
if not ndef or not ndef.buildable_to then
return
end
local p2
if is_y then
p2 = 0
elseif is_x then
p2 = 12
elseif is_z then
p2 = 6
end
minetest.set_node(pos, {name = wield_name, param2 = p2})
if not infinitestacks then
itemstack:take_item()
return itemstack
end
end
-- Wrapper of above function for use as `on_place` callback (Recommended).
-- Similar to minetest.rotate_node.
function mcl_util.rotate_axis(itemstack, placer, pointed_thing)
mcl_util.rotate_axis_and_place(itemstack, placer, pointed_thing,
minetest.is_creative_enabled(placer:get_player_name()),
placer:get_player_control().sneak)
return itemstack
end
-- Returns position of the neighbor of a double chest node
-- or nil if node is invalid.
-- This function assumes that the large chest is actually intact
-- * pos: Position of the node to investigate
-- * param2: param2 of that node
-- * side: Which "half" the investigated node is. "left" or "right"
function mcl_util.get_double_container_neighbor_pos(pos, param2, side)
if side == "right" then
if param2 == 0 then
return {x = pos.x - 1, y = pos.y, z = pos.z}
elseif param2 == 1 then
return {x = pos.x, y = pos.y, z = pos.z + 1}
elseif param2 == 2 then
return {x = pos.x + 1, y = pos.y, z = pos.z}
elseif param2 == 3 then
return {x = pos.x, y = pos.y, z = pos.z - 1}
end
else
if param2 == 0 then
return {x = pos.x + 1, y = pos.y, z = pos.z}
elseif param2 == 1 then
return {x = pos.x, y = pos.y, z = pos.z - 1}
elseif param2 == 2 then
return {x = pos.x - 1, y = pos.y, z = pos.z}
elseif param2 == 3 then
return {x = pos.x, y = pos.y, z = pos.z + 1}
end
end
end
--- Selects item stack to transfer from
---@param src_inventory InvRef Source innentory to pull from
---@param src_list string Name of source inventory list to pull from
@ -410,61 +282,6 @@ function mcl_util.is_fuel(item)
return minetest.get_craft_result({method = "fuel", width = 1, items = {item}}).time ~= 0
end
-- Returns a on_place function for plants
-- * 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.
-- * 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
-- no interaction possible with entities
return itemstack
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
local place_pos
local def_under = minetest.registered_nodes[minetest.get_node(pointed_thing.under).name]
local def_above = minetest.registered_nodes[minetest.get_node(pointed_thing.above).name]
if not def_under or not def_above then
return itemstack
end
if def_under.buildable_to and def_under.name ~= itemstack:get_name() then
place_pos = pointed_thing.under
elseif def_above.buildable_to and def_above.name ~= itemstack:get_name() then
place_pos = pointed_thing.above
pointed_thing.under = pointed_thing.above
else
return itemstack
end
-- Check placement rules
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, param2)
if success then
if idef.sounds and idef.sounds.place then
minetest.sound_play(idef.sounds.place, {pos = pointed_thing.above, gain = 1}, true)
end
end
itemstack = new_itemstack
end
return itemstack
end
end
-- adjust the y level of an object to the center of its collisionbox
-- used to get the origin position of entity explosions
function mcl_util.get_object_center(obj)
@ -736,243 +553,6 @@ function mcl_util.set_bone_position(obj, bone, pos, rot)
end
end
---Return a function to use in `on_place`.
---
---Allow to bypass the `buildable_to` node field in a `on_place` callback.
---
---You have to make sure that the nodes you return true for have `buildable_to = true`.
---@param func fun(node_name: string): boolean Return `true` if node must not replace the buildable_to node which have `node_name`
---@return fun(itemstack: ItemStack, placer: ObjectRef, pointed_thing: pointed_thing, param2: integer): ItemStack?
function mcl_util.bypass_buildable_to(func)
--------------------------
-- MINETEST CODE: UTILS --
--------------------------
local function copy_pointed_thing(pointed_thing)
return {
type = pointed_thing.type,
above = pointed_thing.above and vector.copy(pointed_thing.above),
under = pointed_thing.under and vector.copy(pointed_thing.under),
ref = pointed_thing.ref,
}
end
local function user_name(user)
return user and user:get_player_name() or ""
end
-- Returns a logging function. For empty names, does not log.
local function make_log(name)
return name ~= "" and minetest.log or function() end
end
local function check_attached_node(p, n, group_rating)
local def = core.registered_nodes[n.name]
local d = vector.zero()
if group_rating == 3 then
-- always attach to floor
d.y = -1
elseif group_rating == 4 then
-- always attach to ceiling
d.y = 1
elseif group_rating == 2 then
-- attach to facedir or 4dir direction
if (def.paramtype2 == "facedir" or
def.paramtype2 == "colorfacedir") then
-- Attach to whatever facedir is "mounted to".
-- For facedir, this is where tile no. 5 point at.
-- The fallback vector here is in case 'facedir to dir' is nil due
-- to voxelmanip placing a wallmounted node without resetting a
-- pre-existing param2 value that is out-of-range for facedir.
-- The fallback vector corresponds to param2 = 0.
d = core.facedir_to_dir(n.param2) or vector.new(0, 0, 1)
elseif (def.paramtype2 == "4dir" or
def.paramtype2 == "color4dir") then
-- Similar to facedir handling
d = core.fourdir_to_dir(n.param2) or vector.new(0, 0, 1)
end
elseif def.paramtype2 == "wallmounted" or
def.paramtype2 == "colorwallmounted" then
-- Attach to whatever this node is "mounted to".
-- This where tile no. 2 points at.
-- The fallback vector here is used for the same reason as
-- for facedir nodes.
d = core.wallmounted_to_dir(n.param2) or vector.new(0, 1, 0)
else
d.y = -1
end
local p2 = vector.add(p, d)
local nn = core.get_node(p2).name
local def2 = core.registered_nodes[nn]
if def2 and not def2.walkable then
return false
end
return true
end
return function(itemstack, placer, pointed_thing, param2)
-------------------
-- MINETEST CODE --
-------------------
local def = itemstack:get_definition()
if def.type ~= "node" or pointed_thing.type ~= "node" then
return itemstack
end
local under = pointed_thing.under
local oldnode_under = minetest.get_node_or_nil(under)
local above = pointed_thing.above
local oldnode_above = minetest.get_node_or_nil(above)
local playername = user_name(placer)
local log = make_log(playername)
if not oldnode_under or not oldnode_above then
log("info", playername .. " tried to place"
.. " node in unloaded position " .. minetest.pos_to_string(above))
return itemstack
end
local olddef_under = minetest.registered_nodes[oldnode_under.name]
olddef_under = olddef_under or minetest.nodedef_default
local olddef_above = minetest.registered_nodes[oldnode_above.name]
olddef_above = olddef_above or minetest.nodedef_default
if not olddef_above.buildable_to and not olddef_under.buildable_to then
log("info", playername .. " tried to place"
.. " node in invalid position " .. minetest.pos_to_string(above)
.. ", replacing " .. oldnode_above.name)
return itemstack
end
---------------------
-- CUSTOMIZED CODE --
---------------------
-- Place above pointed node
local place_to = vector.copy(above)
-- If node under is buildable_to, check for callback result and place into it instead
if olddef_under.buildable_to and not func(oldnode_under.name) then
log("info", "node under is buildable to")
place_to = vector.copy(under)
end
-------------------
-- MINETEST CODE --
-------------------
if minetest.is_protected(place_to, playername) then
log("action", playername
.. " tried to place " .. def.name
.. " at protected position "
.. minetest.pos_to_string(place_to))
minetest.record_protection_violation(place_to, playername)
return itemstack
end
local oldnode = minetest.get_node(place_to)
local newnode = {name = def.name, param1 = 0, param2 = param2 or 0}
-- Calculate direction for wall mounted stuff like torches and signs
if def.place_param2 ~= nil then
newnode.param2 = def.place_param2
elseif (def.paramtype2 == "wallmounted" or
def.paramtype2 == "colorwallmounted") and not param2 then
local dir = vector.subtract(under, above)
newnode.param2 = minetest.dir_to_wallmounted(dir)
-- Calculate the direction for furnaces and chests and stuff
elseif (def.paramtype2 == "facedir" or
def.paramtype2 == "colorfacedir" or
def.paramtype2 == "4dir" or
def.paramtype2 == "color4dir") and not param2 then
local placer_pos = placer and placer:get_pos()
if placer_pos then
local dir = vector.subtract(above, placer_pos)
newnode.param2 = minetest.dir_to_facedir(dir)
log("info", "facedir: " .. newnode.param2)
end
end
local metatable = itemstack:get_meta():to_table().fields
-- Transfer color information
if metatable.palette_index and not def.place_param2 then
local color_divisor = nil
if def.paramtype2 == "color" then
color_divisor = 1
elseif def.paramtype2 == "colorwallmounted" then
color_divisor = 8
elseif def.paramtype2 == "colorfacedir" then
color_divisor = 32
elseif def.paramtype2 == "color4dir" then
color_divisor = 4
elseif def.paramtype2 == "colordegrotate" then
color_divisor = 32
end
if color_divisor then
local color = math.floor(metatable.palette_index / color_divisor)
local other = newnode.param2 % color_divisor
newnode.param2 = color * color_divisor + other
end
end
-- Check if the node is attached and if it can be placed there
local an = minetest.get_item_group(def.name, "attached_node")
if an ~= 0 and
not check_attached_node(place_to, newnode, an) then
log("action", "attached node " .. def.name ..
" cannot be placed at " .. minetest.pos_to_string(place_to))
return itemstack
end
log("action", playername .. " places node "
.. def.name .. " at " .. minetest.pos_to_string(place_to))
-- Add node and update
minetest.add_node(place_to, newnode)
-- Play sound if it was done by a player
if playername ~= "" and def.sounds and def.sounds.place then
minetest.sound_play(def.sounds.place, {
pos = place_to,
exclude_player = playername,
}, true)
end
local take_item = true
-- Run callback
if def.after_place_node then
-- Deepcopy place_to and pointed_thing because callback can modify it
local place_to_copy = vector.copy(place_to)
local pointed_thing_copy = copy_pointed_thing(pointed_thing)
if def.after_place_node(place_to_copy, placer, itemstack,
pointed_thing_copy) then
take_item = false
end
end
-- Run script hook
for _, callback in ipairs(minetest.registered_on_placenodes) do
-- Deepcopy pos, node and pointed_thing because callback can modify them
local place_to_copy = vector.copy(place_to)
local newnode_copy = {name = newnode.name, param1 = newnode.param1, param2 = newnode.param2}
local oldnode_copy = {name = oldnode.name, param1 = oldnode.param1, param2 = oldnode.param2}
local pointed_thing_copy = copy_pointed_thing(pointed_thing)
if callback(place_to_copy, newnode_copy, placer, oldnode_copy, itemstack, pointed_thing_copy) then
take_item = false
end
end
if take_item then
itemstack:take_item()
end
return itemstack
end
end
--[[Check for a protection violation in a given area.
--
-- Applies is_protected() to a 3D lattice of points in the defined volume. The points are spaced
@ -1018,33 +598,6 @@ function mcl_util.check_position_protection(position, player)
return false
end
local palette_indexes = {grass_palette_index = 0, foliage_palette_index = 0, water_palette_index = 0}
function mcl_util.get_palette_indexes_from_pos(pos)
local biome_data = minetest.get_biome_data(pos)
local biome = biome_data.biome
local biome_name = minetest.get_biome_name(biome)
local reg_biome = minetest.registered_biomes[biome_name]
if reg_biome and reg_biome._mcl_grass_palette_index and reg_biome._mcl_foliage_palette_index and reg_biome._mcl_water_palette_index then
local gpi = reg_biome._mcl_grass_palette_index
local fpi = reg_biome._mcl_foliage_palette_index
local wpi = reg_biome._mcl_water_palette_index
local palette_indexes = {grass_palette_index = gpi, foliage_palette_index = fpi, water_palette_index = wpi}
return palette_indexes
else
return palette_indexes
end
end
function mcl_util.get_colorwallmounted_rotation(pos)
local colorwallmounted_node = minetest.get_node(pos)
for i = 0, 32, 1 do
local colorwallmounted_rotation = colorwallmounted_node.param2 - (i * 8)
if colorwallmounted_rotation < 6 then
return colorwallmounted_rotation
end
end
end
---Move items from one inventory list to another, drop items that do not fit in provided pos and direction.
---@param src_inv mt.InvRef
---@param src_listname string

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@ -0,0 +1,453 @@
-- Functions related to nodes and node definitions
-- Minetest 5.3.0 or less can only measure the light level. This came in at 5.4
-- This function has been known to fail in multiple places so the error handling is added increase safety and improve
-- debugging. See:
-- https://git.minetest.land/VoxeLibre/VoxeLibre/issues/1392
function mcl_util.get_natural_light (pos, time)
local status, retVal = pcall(minetest.get_natural_light, pos, time)
if status then
return retVal
else
minetest.log("warning", "Failed to get natural light at pos: " .. dump(pos) .. ", time: " .. dump(time))
if (pos) then
local node = minetest.get_node(pos)
minetest.log("warning", "Node at pos: " .. dump(node.name))
end
end
return 0
end
-- Based on minetest.rotate_and_place
--[[
Attempt to predict the desired orientation of the pillar-like node
defined by `itemstack`, and place it accordingly in one of 3 possible
orientations (X, Y or Z).
Stacks are handled normally if the `infinitestacks`
field is false or omitted (else, the itemstack is not changed).
* `invert_wall`: if `true`, place wall-orientation on the ground and ground-
orientation on wall
This function is a simplified version of minetest.rotate_and_place.
The Minetest function is seen as inappropriate because this includes mirror
images of possible orientations, causing problems with pillar shadings.
]]
function mcl_util.rotate_axis_and_place(itemstack, placer, pointed_thing, infinitestacks, invert_wall)
local unode = minetest.get_node_or_nil(pointed_thing.under)
if not unode then
return
end
local undef = minetest.registered_nodes[unode.name]
if undef and undef.on_rightclick and not invert_wall then
undef.on_rightclick(pointed_thing.under, unode, placer,
itemstack, pointed_thing)
return
end
local fdir = minetest.dir_to_facedir(placer:get_look_dir())
local wield_name = itemstack:get_name()
local above = pointed_thing.above
local under = pointed_thing.under
local is_x = (above.x ~= under.x)
local is_y = (above.y ~= under.y)
local is_z = (above.z ~= under.z)
local anode = minetest.get_node_or_nil(above)
if not anode then
return
end
local pos = pointed_thing.above
local node = anode
if undef and undef.buildable_to then
pos = pointed_thing.under
node = unode
end
if minetest.is_protected(pos, placer:get_player_name()) then
minetest.record_protection_violation(pos, placer:get_player_name())
return
end
local ndef = minetest.registered_nodes[node.name]
if not ndef or not ndef.buildable_to then
return
end
local p2
if is_y then
p2 = 0
elseif is_x then
p2 = 12
elseif is_z then
p2 = 6
end
minetest.set_node(pos, {name = wield_name, param2 = p2})
if not infinitestacks then
itemstack:take_item()
return itemstack
end
end
-- Wrapper of above function for use as `on_place` callback (Recommended).
-- Similar to minetest.rotate_node.
function mcl_util.rotate_axis(itemstack, placer, pointed_thing)
mcl_util.rotate_axis_and_place(itemstack, placer, pointed_thing,
minetest.is_creative_enabled(placer:get_player_name()),
placer:get_player_control().sneak)
return itemstack
end
-- Returns position of the neighbor of a double chest node
-- or nil if node is invalid.
-- This function assumes that the large chest is actually intact
-- * pos: Position of the node to investigate
-- * param2: param2 of that node
-- * side: Which "half" the investigated node is. "left" or "right"
function mcl_util.get_double_container_neighbor_pos(pos, param2, side)
if side == "right" then
if param2 == 0 then
return {x = pos.x - 1, y = pos.y, z = pos.z}
elseif param2 == 1 then
return {x = pos.x, y = pos.y, z = pos.z + 1}
elseif param2 == 2 then
return {x = pos.x + 1, y = pos.y, z = pos.z}
elseif param2 == 3 then
return {x = pos.x, y = pos.y, z = pos.z - 1}
end
else
if param2 == 0 then
return {x = pos.x + 1, y = pos.y, z = pos.z}
elseif param2 == 1 then
return {x = pos.x, y = pos.y, z = pos.z - 1}
elseif param2 == 2 then
return {x = pos.x - 1, y = pos.y, z = pos.z}
elseif param2 == 3 then
return {x = pos.x, y = pos.y, z = pos.z + 1}
end
end
end
-- Returns a on_place function for plants
-- * 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.
-- * 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
-- no interaction possible with entities
return itemstack
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
local place_pos
local def_under = minetest.registered_nodes[minetest.get_node(pointed_thing.under).name]
local def_above = minetest.registered_nodes[minetest.get_node(pointed_thing.above).name]
if not def_under or not def_above then
return itemstack
end
if def_under.buildable_to and def_under.name ~= itemstack:get_name() then
place_pos = pointed_thing.under
elseif def_above.buildable_to and def_above.name ~= itemstack:get_name() then
place_pos = pointed_thing.above
pointed_thing.under = pointed_thing.above
else
return itemstack
end
-- Check placement rules
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, param2)
if success then
if idef.sounds and idef.sounds.place then
minetest.sound_play(idef.sounds.place, {pos = pointed_thing.above, gain = 1}, true)
end
end
itemstack = new_itemstack
end
return itemstack
end
end
---Return a function to use in `on_place`.
---
---Allow to bypass the `buildable_to` node field in a `on_place` callback.
---
---You have to make sure that the nodes you return true for have `buildable_to = true`.
---@param func fun(node_name: string): boolean Return `true` if node must not replace the buildable_to node which have `node_name`
---@return fun(itemstack: ItemStack, placer: ObjectRef, pointed_thing: pointed_thing, param2: integer): ItemStack?
function mcl_util.bypass_buildable_to(func)
--------------------------
-- MINETEST CODE: UTILS --
--------------------------
local function copy_pointed_thing(pointed_thing)
return {
type = pointed_thing.type,
above = pointed_thing.above and vector.copy(pointed_thing.above),
under = pointed_thing.under and vector.copy(pointed_thing.under),
ref = pointed_thing.ref,
}
end
local function user_name(user)
return user and user:get_player_name() or ""
end
-- Returns a logging function. For empty names, does not log.
local function make_log(name)
return name ~= "" and minetest.log or function() end
end
local function check_attached_node(p, n, group_rating)
local def = core.registered_nodes[n.name]
local d = vector.zero()
if group_rating == 3 then
-- always attach to floor
d.y = -1
elseif group_rating == 4 then
-- always attach to ceiling
d.y = 1
elseif group_rating == 2 then
-- attach to facedir or 4dir direction
if (def.paramtype2 == "facedir" or
def.paramtype2 == "colorfacedir") then
-- Attach to whatever facedir is "mounted to".
-- For facedir, this is where tile no. 5 point at.
-- The fallback vector here is in case 'facedir to dir' is nil due
-- to voxelmanip placing a wallmounted node without resetting a
-- pre-existing param2 value that is out-of-range for facedir.
-- The fallback vector corresponds to param2 = 0.
d = core.facedir_to_dir(n.param2) or vector.new(0, 0, 1)
elseif (def.paramtype2 == "4dir" or
def.paramtype2 == "color4dir") then
-- Similar to facedir handling
d = core.fourdir_to_dir(n.param2) or vector.new(0, 0, 1)
end
elseif def.paramtype2 == "wallmounted" or
def.paramtype2 == "colorwallmounted" then
-- Attach to whatever this node is "mounted to".
-- This where tile no. 2 points at.
-- The fallback vector here is used for the same reason as
-- for facedir nodes.
d = core.wallmounted_to_dir(n.param2) or vector.new(0, 1, 0)
else
d.y = -1
end
local p2 = vector.add(p, d)
local nn = core.get_node(p2).name
local def2 = core.registered_nodes[nn]
if def2 and not def2.walkable then
return false
end
return true
end
return function(itemstack, placer, pointed_thing, param2)
-------------------
-- MINETEST CODE --
-------------------
local def = itemstack:get_definition()
if def.type ~= "node" or pointed_thing.type ~= "node" then
return itemstack
end
local under = pointed_thing.under
local oldnode_under = minetest.get_node_or_nil(under)
local above = pointed_thing.above
local oldnode_above = minetest.get_node_or_nil(above)
local playername = user_name(placer)
local log = make_log(playername)
if not oldnode_under or not oldnode_above then
log("info", playername .. " tried to place"
.. " node in unloaded position " .. minetest.pos_to_string(above))
return itemstack
end
local olddef_under = minetest.registered_nodes[oldnode_under.name]
olddef_under = olddef_under or minetest.nodedef_default
local olddef_above = minetest.registered_nodes[oldnode_above.name]
olddef_above = olddef_above or minetest.nodedef_default
if not olddef_above.buildable_to and not olddef_under.buildable_to then
log("info", playername .. " tried to place"
.. " node in invalid position " .. minetest.pos_to_string(above)
.. ", replacing " .. oldnode_above.name)
return itemstack
end
---------------------
-- CUSTOMIZED CODE --
---------------------
-- Place above pointed node
local place_to = vector.copy(above)
-- If node under is buildable_to, check for callback result and place into it instead
if olddef_under.buildable_to and not func(oldnode_under.name) then
log("info", "node under is buildable to")
place_to = vector.copy(under)
end
-------------------
-- MINETEST CODE --
-------------------
if minetest.is_protected(place_to, playername) then
log("action", playername
.. " tried to place " .. def.name
.. " at protected position "
.. minetest.pos_to_string(place_to))
minetest.record_protection_violation(place_to, playername)
return itemstack
end
local oldnode = minetest.get_node(place_to)
local newnode = {name = def.name, param1 = 0, param2 = param2 or 0}
-- Calculate direction for wall mounted stuff like torches and signs
if def.place_param2 ~= nil then
newnode.param2 = def.place_param2
elseif (def.paramtype2 == "wallmounted" or
def.paramtype2 == "colorwallmounted") and not param2 then
local dir = vector.subtract(under, above)
newnode.param2 = minetest.dir_to_wallmounted(dir)
-- Calculate the direction for furnaces and chests and stuff
elseif (def.paramtype2 == "facedir" or
def.paramtype2 == "colorfacedir" or
def.paramtype2 == "4dir" or
def.paramtype2 == "color4dir") and not param2 then
local placer_pos = placer and placer:get_pos()
if placer_pos then
local dir = vector.subtract(above, placer_pos)
newnode.param2 = minetest.dir_to_facedir(dir)
log("info", "facedir: " .. newnode.param2)
end
end
local metatable = itemstack:get_meta():to_table().fields
-- Transfer color information
if metatable.palette_index and not def.place_param2 then
local color_divisor = nil
if def.paramtype2 == "color" then
color_divisor = 1
elseif def.paramtype2 == "colorwallmounted" then
color_divisor = 8
elseif def.paramtype2 == "colorfacedir" then
color_divisor = 32
elseif def.paramtype2 == "color4dir" then
color_divisor = 4
elseif def.paramtype2 == "colordegrotate" then
color_divisor = 32
end
if color_divisor then
local color = math.floor(metatable.palette_index / color_divisor)
local other = newnode.param2 % color_divisor
newnode.param2 = color * color_divisor + other
end
end
-- Check if the node is attached and if it can be placed there
local an = minetest.get_item_group(def.name, "attached_node")
if an ~= 0 and
not check_attached_node(place_to, newnode, an) then
log("action", "attached node " .. def.name ..
" cannot be placed at " .. minetest.pos_to_string(place_to))
return itemstack
end
log("action", playername .. " places node "
.. def.name .. " at " .. minetest.pos_to_string(place_to))
-- Add node and update
minetest.add_node(place_to, newnode)
-- Play sound if it was done by a player
if playername ~= "" and def.sounds and def.sounds.place then
minetest.sound_play(def.sounds.place, {
pos = place_to,
exclude_player = playername,
}, true)
end
local take_item = true
-- Run callback
if def.after_place_node then
-- Deepcopy place_to and pointed_thing because callback can modify it
local place_to_copy = vector.copy(place_to)
local pointed_thing_copy = copy_pointed_thing(pointed_thing)
if def.after_place_node(place_to_copy, placer, itemstack,
pointed_thing_copy) then
take_item = false
end
end
-- Run script hook
for _, callback in ipairs(minetest.registered_on_placenodes) do
-- Deepcopy pos, node and pointed_thing because callback can modify them
local place_to_copy = vector.copy(place_to)
local newnode_copy = {name = newnode.name, param1 = newnode.param1, param2 = newnode.param2}
local oldnode_copy = {name = oldnode.name, param1 = oldnode.param1, param2 = oldnode.param2}
local pointed_thing_copy = copy_pointed_thing(pointed_thing)
if callback(place_to_copy, newnode_copy, placer, oldnode_copy, itemstack, pointed_thing_copy) then
take_item = false
end
end
if take_item then
itemstack:take_item()
end
return itemstack
end
end
local palette_indexes = {grass_palette_index = 0, foliage_palette_index = 0, water_palette_index = 0}
function mcl_util.get_palette_indexes_from_pos(pos)
local biome_data = minetest.get_biome_data(pos)
local biome = biome_data.biome
local biome_name = minetest.get_biome_name(biome)
local reg_biome = minetest.registered_biomes[biome_name]
if reg_biome and reg_biome._mcl_grass_palette_index and reg_biome._mcl_foliage_palette_index and reg_biome._mcl_water_palette_index then
local gpi = reg_biome._mcl_grass_palette_index
local fpi = reg_biome._mcl_foliage_palette_index
local wpi = reg_biome._mcl_water_palette_index
local palette_indexes = {grass_palette_index = gpi, foliage_palette_index = fpi, water_palette_index = wpi}
return palette_indexes
else
return palette_indexes
end
end
function mcl_util.get_colorwallmounted_rotation(pos)
local colorwallmounted_node = minetest.get_node(pos)
for i = 0, 32, 1 do
local colorwallmounted_rotation = colorwallmounted_node.param2 - (i * 8)
if colorwallmounted_rotation < 6 then
return colorwallmounted_rotation
end
end
end