forked from VoxeLibre/VoxeLibre
420 lines
14 KiB
Lua
420 lines
14 KiB
Lua
mcl_util = {}
|
|
|
|
-- 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 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
|
|
if invert_wall then
|
|
if fdir == 3 or fdir == 1 then
|
|
p2 = 12
|
|
else
|
|
p2 = 6
|
|
end
|
|
end
|
|
elseif is_x then
|
|
if invert_wall then
|
|
p2 = 0
|
|
else
|
|
p2 = 12
|
|
end
|
|
elseif is_z then
|
|
if invert_wall then
|
|
p2 = 0
|
|
else
|
|
p2 = 6
|
|
end
|
|
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,
|
|
core.setting_getbool("creative_mode"),
|
|
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
|
|
|
|
-- Iterates through all items in the given inventory and
|
|
-- returns the slot of the first item which matches a condition.
|
|
-- Returns nil if no item was found.
|
|
--- source_inventory: Inventory to take the item from
|
|
--- source_list: List name of the source inventory from which to take the item
|
|
--- destination_inventory: Put item into this inventory
|
|
--- destination_list: List name of the destination inventory to which to put the item into
|
|
--- condition: Function which takes an itemstack and returns true if it matches the desired item condition.
|
|
--- If set to nil, the slot of the first item stack will be taken unconditionally.
|
|
-- dst_inventory and dst_list can also be nil if condition is nil.
|
|
function mcl_util.get_eligible_transfer_item_slot(src_inventory, src_list, dst_inventory, dst_list, condition)
|
|
local size = src_inventory:get_size(src_list)
|
|
local stack
|
|
for i=1, size do
|
|
stack = src_inventory:get_stack(src_list, i)
|
|
if not stack:is_empty() and (condition == nil or condition(stack, src_inventory, src_list, dst_inventory, dst_list)) then
|
|
return i
|
|
end
|
|
end
|
|
return nil
|
|
end
|
|
|
|
-- Returns true if given 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
|
|
end
|
|
|
|
-- Moves a single item from one inventory to another.
|
|
--- source_inventory: Inventory to take the item from
|
|
--- source_list: List name of the source inventory from which to take the item
|
|
--- source_stack_id: The inventory position ID of the source inventory to take the item from (-1 for first occupied slot)
|
|
--- destination_inventory: Put item into this inventory
|
|
--- destination_list: List name of the destination inventory to which to put the item into
|
|
|
|
-- Returns true on success and false on failure
|
|
-- Possible failures: No item in source slot, destination inventory full
|
|
function mcl_util.move_item(source_inventory, source_list, source_stack_id, destination_inventory, destination_list)
|
|
if source_stack_id == -1 then
|
|
source_stack_id = mcl_util.get_first_occupied_inventory_slot(source_inventory, source_list)
|
|
if source_stack_id == nil then
|
|
return false
|
|
end
|
|
end
|
|
|
|
if not source_inventory:is_empty(source_list) then
|
|
local stack = source_inventory:get_stack(source_list, source_stack_id)
|
|
local item = stack:get_name()
|
|
if not stack:is_empty() then
|
|
if not destination_inventory:room_for_item(destination_list, item) then
|
|
return false
|
|
end
|
|
stack:take_item()
|
|
source_inventory:set_stack(source_list, source_stack_id, stack)
|
|
destination_inventory:add_item(destination_list, item)
|
|
return true
|
|
end
|
|
end
|
|
return false
|
|
end
|
|
|
|
-- Moves a single item from one container node into another. Performs a variety of high-level
|
|
-- checks to prevent invalid transfers such as shulker boxes into shulker boxes
|
|
--- source_pos: Position ({x,y,z}) of the node to take the item from
|
|
--- destination_pos: Position ({x,y,z}) of the node to put the item into
|
|
--- source_list (optional): List name of the source inventory from which to take the item. Default is normally "main"; "dst" for furnace
|
|
--- source_stack_id (optional): The inventory position ID of the source inventory to take the item from (-1 for slot of the first valid item; -1 is default)
|
|
--- destination_list (optional): List name of the destination inventory. Default is normally "main"; "src" for furnace
|
|
-- Returns true on success and false on failure.
|
|
function mcl_util.move_item_container(source_pos, destination_pos, source_list, source_stack_id, destination_list)
|
|
local dpos = table.copy(destination_pos)
|
|
local spos = table.copy(source_pos)
|
|
local snode = minetest.get_node(spos)
|
|
local dnode = minetest.get_node(dpos)
|
|
|
|
local dctype = minetest.get_item_group(dnode.name, "container")
|
|
local sctype = minetest.get_item_group(snode.name, "container")
|
|
|
|
-- Normalize double container by forcing to always use the left segment first
|
|
local normalize_double_container = function(pos, node, ctype)
|
|
if ctype == 6 then
|
|
pos = mcl_util.get_double_container_neighbor_pos(pos, node.param2, "right")
|
|
if not pos then
|
|
return false
|
|
end
|
|
node = minetest.get_node(pos)
|
|
ctype = minetest.get_item_group(node.name, "container")
|
|
-- The left segment seems incorrect? We better bail out!
|
|
if ctype ~= 5 then
|
|
return false
|
|
end
|
|
end
|
|
return pos, node, ctype
|
|
end
|
|
|
|
spos, snode, sctype = normalize_double_container(spos, snode, sctype)
|
|
dpos, dnode, dctype = normalize_double_container(dpos, dnode, dctype)
|
|
if not spos or not dpos then return false end
|
|
|
|
local smeta = minetest.get_meta(spos)
|
|
local dmeta = minetest.get_meta(dpos)
|
|
|
|
local sinv = smeta:get_inventory()
|
|
local dinv = dmeta:get_inventory()
|
|
|
|
-- 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
|
|
source_list = "main"
|
|
-- Furnace: output
|
|
elseif sctype == 4 then
|
|
source_list = "dst"
|
|
-- Unknown source container type. Bail out
|
|
else
|
|
return false
|
|
end
|
|
end
|
|
|
|
-- Automatically select stack slot ID if set to automatic
|
|
if not source_stack_id then
|
|
source_stack_id = -1
|
|
end
|
|
if source_stack_id == -1 then
|
|
local cond = nil
|
|
-- Prevent shulker box inception
|
|
if dctype == 3 then
|
|
cond = is_not_shulker_box
|
|
end
|
|
source_stack_id = mcl_util.get_eligible_transfer_item_slot(sinv, source_list, dinv, dpos, cond)
|
|
if not source_stack_id then
|
|
-- Try again if source is a double container
|
|
if sctype == 5 then
|
|
spos = mcl_util.get_double_container_neighbor_pos(spos, snode.param2, "left")
|
|
smeta = minetest.get_meta(spos)
|
|
sinv = smeta:get_inventory()
|
|
|
|
source_stack_id = mcl_util.get_eligible_transfer_item_slot(sinv, source_list, dinv, dpos, cond)
|
|
if not source_stack_id then
|
|
return false
|
|
end
|
|
else
|
|
return false
|
|
end
|
|
end
|
|
end
|
|
|
|
-- Abort transfer if shulker box wants to go into shulker box
|
|
if dctype == 3 then
|
|
local stack = sinv:get_stack(source_list, source_stack_id)
|
|
if stack and minetest.get_item_group(stack:get_name(), "shulker_box") == 1 then
|
|
return false
|
|
end
|
|
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
|
|
destination_list = "main"
|
|
-- Furnace source slot
|
|
elseif dctype == 4 then
|
|
destination_list = "src"
|
|
end
|
|
end
|
|
if destination_list then
|
|
-- Move item
|
|
local ok = mcl_util.move_item(sinv, source_list, source_stack_id, dinv, destination_list)
|
|
|
|
-- Try transfer to neighbor node if transfer failed and double container
|
|
if not ok and dctype == 5 then
|
|
dpos = mcl_util.get_double_container_neighbor_pos(dpos, dnode.param2, "left")
|
|
dmeta = minetest.get_meta(dpos)
|
|
dinv = dmeta:get_inventory()
|
|
|
|
ok = mcl_util.move_item(sinv, source_list, source_stack_id, dinv, destination_list)
|
|
end
|
|
|
|
-- Update furnace
|
|
if ok and dctype == 4 then
|
|
-- Start furnace's timer function, it will sort out whether furnace can burn or not.
|
|
minetest.get_node_timer(dpos):start(1.0)
|
|
end
|
|
|
|
return ok
|
|
end
|
|
end
|
|
return false
|
|
end
|
|
|
|
-- Returns the ID of the first non-empty slot in the given inventory list
|
|
-- or nil, if inventory is empty.
|
|
function mcl_util.get_first_occupied_inventory_slot(inventory, listname)
|
|
return mcl_util.get_eligible_transfer_item_slot(inventory, listname)
|
|
end
|
|
|
|
-- Returns true if item (itemstring or ItemStack) can be used as a furnace fuel.
|
|
-- Returns false otherwise
|
|
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, void_deadly
|
|
void = pos.y < mcl_vars.mg_overworld_min
|
|
void_deadly = pos.y < mcl_vars.mg_overworld_min - 64
|
|
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"
|
|
else
|
|
return nil, "void"
|
|
end
|
|
end
|
|
|
|
-- Takes a Minecraft layer and a “dimension” name
|
|
-- and returns the corresponding Y coordinate for
|
|
-- MineClone 2.
|
|
-- minecraft_dimension parameter is ignored at the moment
|
|
-- TODO: Implement dimensions
|
|
function mcl_util.layer_to_y(layer, minecraft_dimension)
|
|
return layer + mcl_vars.mg_overworld_min
|
|
end
|
|
|
|
-- Returns a on_place function for plants
|
|
-- * condition: function(pos, node)
|
|
-- * 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
|
|
-- * pos, node: Position and node table of plant node
|
|
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 then
|
|
place_pos = pointed_thing.under
|
|
elseif def_above.buildable_to then
|
|
place_pos = pointed_thing.above
|
|
else
|
|
return itemstack
|
|
end
|
|
|
|
-- Check placement rules
|
|
if (condition(place_pos, node) == true) then
|
|
local idef = itemstack:get_definition()
|
|
local new_itemstack, success = minetest.item_place_node(itemstack, placer, pointed_thing)
|
|
|
|
if success then
|
|
if idef.sounds and idef.sounds.place then
|
|
minetest.sound_play(idef.sounds.place, {pos=pointed_thing.above, gain=1})
|
|
end
|
|
end
|
|
itemstack = new_itemstack
|
|
end
|
|
|
|
return itemstack
|
|
end
|
|
end
|
|
|
|
|