649 lines
17 KiB
Lua
649 lines
17 KiB
Lua
-- Minetest: builtin/item.lua
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local function copy_pointed_thing(pointed_thing)
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return {
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type = pointed_thing.type,
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above = vector.new(pointed_thing.above),
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under = vector.new(pointed_thing.under),
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ref = pointed_thing.ref,
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}
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end
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--
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-- Item definition helpers
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--
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function core.inventorycube(img1, img2, img3)
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img2 = img2 or img1
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img3 = img3 or img1
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return "[inventorycube"
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.. "{" .. img1:gsub("%^", "&")
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.. "{" .. img2:gsub("%^", "&")
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.. "{" .. img3:gsub("%^", "&")
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end
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function core.get_pointed_thing_position(pointed_thing, above)
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if pointed_thing.type == "node" then
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if above then
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-- The position where a node would be placed
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return pointed_thing.above
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end
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-- The position where a node would be dug
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return pointed_thing.under
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elseif pointed_thing.type == "object" then
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return pointed_thing.ref and pointed_thing.ref:getpos()
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end
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end
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function core.dir_to_facedir(dir, is6d)
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--account for y if requested
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if is6d and math.abs(dir.y) > math.abs(dir.x) and math.abs(dir.y) > math.abs(dir.z) then
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--from above
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if dir.y < 0 then
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if math.abs(dir.x) > math.abs(dir.z) then
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if dir.x < 0 then
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return 19
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else
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return 13
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end
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else
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if dir.z < 0 then
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return 10
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else
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return 4
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end
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end
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--from below
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else
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if math.abs(dir.x) > math.abs(dir.z) then
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if dir.x < 0 then
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return 15
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else
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return 17
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end
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else
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if dir.z < 0 then
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return 6
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else
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return 8
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end
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end
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end
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--otherwise, place horizontally
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elseif math.abs(dir.x) > math.abs(dir.z) then
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if dir.x < 0 then
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return 3
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else
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return 1
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end
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else
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if dir.z < 0 then
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return 2
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else
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return 0
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end
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end
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end
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-- Table of possible dirs
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local facedir_to_dir = {
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{x= 0, y=0, z= 1},
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{x= 1, y=0, z= 0},
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{x= 0, y=0, z=-1},
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{x=-1, y=0, z= 0},
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{x= 0, y=-1, z= 0},
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{x= 0, y=1, z= 0},
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}
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-- Mapping from facedir value to index in facedir_to_dir.
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local facedir_to_dir_map = {
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[0]=1, 2, 3, 4,
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5, 2, 6, 4,
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6, 2, 5, 4,
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1, 5, 3, 6,
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1, 6, 3, 5,
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1, 4, 3, 2,
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}
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function core.facedir_to_dir(facedir)
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return facedir_to_dir[facedir_to_dir_map[facedir]]
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end
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function core.dir_to_wallmounted(dir)
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if math.abs(dir.y) > math.max(math.abs(dir.x), math.abs(dir.z)) then
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if dir.y < 0 then
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return 1
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else
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return 0
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end
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elseif math.abs(dir.x) > math.abs(dir.z) then
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if dir.x < 0 then
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return 3
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else
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return 2
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end
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else
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if dir.z < 0 then
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return 5
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else
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return 4
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end
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end
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end
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-- table of dirs in wallmounted order
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local wallmounted_to_dir = {
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[0] = {x = 0, y = 1, z = 0},
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{x = 0, y = -1, z = 0},
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{x = 1, y = 0, z = 0},
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{x = -1, y = 0, z = 0},
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{x = 0, y = 0, z = 1},
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{x = 0, y = 0, z = -1},
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}
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function core.wallmounted_to_dir(wallmounted)
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return wallmounted_to_dir[wallmounted]
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end
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function core.get_node_drops(nodename, toolname)
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local drop = ItemStack({name=nodename}):get_definition().drop
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if drop == nil then
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-- default drop
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return {nodename}
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elseif type(drop) == "string" then
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-- itemstring drop
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return {drop}
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elseif drop.items == nil then
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-- drop = {} to disable default drop
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return {}
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end
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-- Extended drop table
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local got_items = {}
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local got_count = 0
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local _, item, tool
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for _, item in ipairs(drop.items) do
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local good_rarity = true
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local good_tool = true
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if item.rarity ~= nil then
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good_rarity = item.rarity < 1 or math.random(item.rarity) == 1
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end
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if item.tools ~= nil then
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good_tool = false
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for _, tool in ipairs(item.tools) do
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if tool:sub(1, 1) == '~' then
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good_tool = toolname:find(tool:sub(2)) ~= nil
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else
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good_tool = toolname == tool
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end
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if good_tool then
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break
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end
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end
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end
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if good_rarity and good_tool then
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got_count = got_count + 1
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for _, add_item in ipairs(item.items) do
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got_items[#got_items+1] = add_item
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end
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if drop.max_items ~= nil and got_count == drop.max_items then
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break
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end
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end
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end
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return got_items
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end
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function core.item_place_node(itemstack, placer, pointed_thing, param2)
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local item = itemstack:peek_item()
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local def = itemstack:get_definition()
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if def.type ~= "node" or pointed_thing.type ~= "node" then
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return itemstack, false
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end
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local under = pointed_thing.under
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local oldnode_under = core.get_node_or_nil(under)
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local above = pointed_thing.above
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local oldnode_above = core.get_node_or_nil(above)
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if not oldnode_under or not oldnode_above then
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core.log("info", placer:get_player_name() .. " tried to place"
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.. " node in unloaded position " .. core.pos_to_string(above))
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return itemstack, false
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end
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local olddef_under = ItemStack({name=oldnode_under.name}):get_definition()
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olddef_under = olddef_under or core.nodedef_default
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local olddef_above = ItemStack({name=oldnode_above.name}):get_definition()
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olddef_above = olddef_above or core.nodedef_default
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if not olddef_above.buildable_to and not olddef_under.buildable_to then
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core.log("info", placer:get_player_name() .. " tried to place"
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.. " node in invalid position " .. core.pos_to_string(above)
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.. ", replacing " .. oldnode_above.name)
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return itemstack, false
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end
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-- Place above pointed node
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local place_to = {x = above.x, y = above.y, z = above.z}
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-- If node under is buildable_to, place into it instead (eg. snow)
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if olddef_under.buildable_to then
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core.log("info", "node under is buildable to")
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place_to = {x = under.x, y = under.y, z = under.z}
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end
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if core.is_protected(place_to, placer:get_player_name()) and
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not minetest.check_player_privs(placer, "protection_bypass") then
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core.log("action", placer:get_player_name()
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.. " tried to place " .. def.name
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.. " at protected position "
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.. core.pos_to_string(place_to))
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core.record_protection_violation(place_to, placer:get_player_name())
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return itemstack
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end
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core.log("action", placer:get_player_name() .. " places node "
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.. def.name .. " at " .. core.pos_to_string(place_to))
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local oldnode = core.get_node(place_to)
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local newnode = {name = def.name, param1 = 0, param2 = param2}
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-- Calculate direction for wall mounted stuff like torches and signs
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if def.paramtype2 == 'wallmounted' and not param2 then
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local dir = {
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x = under.x - above.x,
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y = under.y - above.y,
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z = under.z - above.z
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}
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newnode.param2 = core.dir_to_wallmounted(dir)
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-- Calculate the direction for furnaces and chests and stuff
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elseif def.paramtype2 == 'facedir' and not param2 then
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local placer_pos = placer:getpos()
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if placer_pos then
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local dir = {
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x = above.x - placer_pos.x,
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y = above.y - placer_pos.y,
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z = above.z - placer_pos.z
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}
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newnode.param2 = core.dir_to_facedir(dir)
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core.log("action", "facedir: " .. newnode.param2)
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end
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end
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-- Check if the node is attached and if it can be placed there
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if core.get_item_group(def.name, "attached_node") ~= 0 and
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not check_attached_node(place_to, newnode) then
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core.log("action", "attached node " .. def.name ..
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" can not be placed at " .. core.pos_to_string(place_to))
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return itemstack, false
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end
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-- Add node and update
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core.add_node(place_to, newnode)
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local take_item = true
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-- Run callback
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if def.after_place_node then
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-- Deepcopy place_to and pointed_thing because callback can modify it
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local place_to_copy = {x=place_to.x, y=place_to.y, z=place_to.z}
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local pointed_thing_copy = copy_pointed_thing(pointed_thing)
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if def.after_place_node(place_to_copy, placer, itemstack,
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pointed_thing_copy) then
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take_item = false
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end
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end
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-- Run script hook
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local _, callback
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for _, callback in ipairs(core.registered_on_placenodes) do
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-- Deepcopy pos, node and pointed_thing because callback can modify them
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local place_to_copy = {x=place_to.x, y=place_to.y, z=place_to.z}
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local newnode_copy = {name=newnode.name, param1=newnode.param1, param2=newnode.param2}
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local oldnode_copy = {name=oldnode.name, param1=oldnode.param1, param2=oldnode.param2}
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local pointed_thing_copy = copy_pointed_thing(pointed_thing)
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if callback(place_to_copy, newnode_copy, placer, oldnode_copy, itemstack, pointed_thing_copy) then
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take_item = false
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end
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end
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if take_item then
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itemstack:take_item()
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end
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return itemstack, true
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end
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function core.item_place_object(itemstack, placer, pointed_thing)
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local pos = core.get_pointed_thing_position(pointed_thing, true)
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if pos ~= nil then
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local item = itemstack:take_item()
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core.add_item(pos, item)
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end
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return itemstack
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end
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function core.item_place(itemstack, placer, pointed_thing, param2)
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-- Call on_rightclick if the pointed node defines it
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if pointed_thing.type == "node" and placer and
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not placer:get_player_control().sneak then
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local n = core.get_node(pointed_thing.under)
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local nn = n.name
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if core.registered_nodes[nn] and core.registered_nodes[nn].on_rightclick then
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return core.registered_nodes[nn].on_rightclick(pointed_thing.under, n,
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placer, itemstack, pointed_thing) or itemstack, false
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end
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end
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if itemstack:get_definition().type == "node" then
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return core.item_place_node(itemstack, placer, pointed_thing, param2)
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end
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return itemstack
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end
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function core.item_secondary_use(itemstack, placer)
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return itemstack
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end
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function core.item_drop(itemstack, dropper, pos)
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if dropper and dropper:is_player() then
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local v = dropper:get_look_dir()
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local p = {x=pos.x, y=pos.y+1.2, z=pos.z}
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local cs = itemstack:get_count()
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if dropper:get_player_control().sneak then
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cs = 1
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end
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local item = itemstack:take_item(cs)
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local obj = core.add_item(p, item)
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if obj then
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v.x = v.x*2
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v.y = v.y*2 + 2
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v.z = v.z*2
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obj:setvelocity(v)
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obj:get_luaentity().dropped_by = dropper:get_player_name()
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return itemstack
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end
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else
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if core.add_item(pos, itemstack) then
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return itemstack
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end
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end
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-- If we reach this, adding the object to the
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-- environment failed
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end
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function core.do_item_eat(hp_change, replace_with_item, itemstack, user, pointed_thing)
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for _, callback in pairs(core.registered_on_item_eats) do
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local result = callback(hp_change, replace_with_item, itemstack, user, pointed_thing)
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if result then
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return result
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end
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end
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if itemstack:take_item() ~= nil then
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user:set_hp(user:get_hp() + hp_change)
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if replace_with_item then
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if itemstack:is_empty() then
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itemstack:add_item(replace_with_item)
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else
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local inv = user:get_inventory()
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if inv:room_for_item("main", {name=replace_with_item}) then
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inv:add_item("main", replace_with_item)
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else
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local pos = user:getpos()
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pos.y = math.floor(pos.y + 0.5)
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core.add_item(pos, replace_with_item)
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end
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end
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end
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end
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return itemstack
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end
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function core.item_eat(hp_change, replace_with_item)
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return function(itemstack, user, pointed_thing) -- closure
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return core.do_item_eat(hp_change, replace_with_item, itemstack, user, pointed_thing)
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end
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end
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function core.node_punch(pos, node, puncher, pointed_thing)
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-- Run script hook
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for _, callback in ipairs(core.registered_on_punchnodes) do
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-- Copy pos and node because callback can modify them
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local pos_copy = vector.new(pos)
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local node_copy = {name=node.name, param1=node.param1, param2=node.param2}
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local pointed_thing_copy = pointed_thing and copy_pointed_thing(pointed_thing) or nil
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callback(pos_copy, node_copy, puncher, pointed_thing_copy)
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end
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end
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function core.handle_node_drops(pos, drops, digger)
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-- Add dropped items to object's inventory
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if digger:get_inventory() then
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local _, dropped_item
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for _, dropped_item in ipairs(drops) do
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local left = digger:get_inventory():add_item("main", dropped_item)
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if not left:is_empty() then
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local p = {
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x = pos.x + math.random()/2-0.25,
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y = pos.y + math.random()/2-0.25,
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z = pos.z + math.random()/2-0.25,
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}
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core.add_item(p, left)
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end
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end
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end
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end
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function core.node_dig(pos, node, digger)
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local def = ItemStack({name=node.name}):get_definition()
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if not def.diggable or (def.can_dig and not def.can_dig(pos,digger)) then
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core.log("info", digger:get_player_name() .. " tried to dig "
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.. node.name .. " which is not diggable "
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.. core.pos_to_string(pos))
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return
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end
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if core.is_protected(pos, digger:get_player_name()) and
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not minetest.check_player_privs(digger, "protection_bypass") then
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core.log("action", digger:get_player_name()
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.. " tried to dig " .. node.name
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.. " at protected position "
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.. core.pos_to_string(pos))
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core.record_protection_violation(pos, digger:get_player_name())
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return
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end
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core.log('action', digger:get_player_name() .. " digs "
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.. node.name .. " at " .. core.pos_to_string(pos))
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local wielded = digger:get_wielded_item()
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local drops = core.get_node_drops(node.name, wielded:get_name())
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local wdef = wielded:get_definition()
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local tp = wielded:get_tool_capabilities()
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local dp = core.get_dig_params(def.groups, tp)
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if wdef and wdef.after_use then
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wielded = wdef.after_use(wielded, digger, node, dp) or wielded
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else
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-- Wear out tool
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if not core.setting_getbool("creative_mode") then
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wielded:add_wear(dp.wear)
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end
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end
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digger:set_wielded_item(wielded)
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-- Handle drops
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core.handle_node_drops(pos, drops, digger)
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local oldmetadata = nil
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if def.after_dig_node then
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oldmetadata = core.get_meta(pos):to_table()
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end
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-- Remove node and update
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core.remove_node(pos)
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-- Run callback
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if def.after_dig_node then
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-- Copy pos and node because callback can modify them
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local pos_copy = {x=pos.x, y=pos.y, z=pos.z}
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local node_copy = {name=node.name, param1=node.param1, param2=node.param2}
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def.after_dig_node(pos_copy, node_copy, oldmetadata, digger)
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end
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-- Run script hook
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local _, callback
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for _, callback in ipairs(core.registered_on_dignodes) do
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local origin = core.callback_origins[callback]
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if origin then
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core.set_last_run_mod(origin.mod)
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--print("Running " .. tostring(callback) ..
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-- " (a " .. origin.name .. " callback in " .. origin.mod .. ")")
|
|
else
|
|
--print("No data associated with callback")
|
|
end
|
|
|
|
-- Copy pos and node because callback can modify them
|
|
local pos_copy = {x=pos.x, y=pos.y, z=pos.z}
|
|
local node_copy = {name=node.name, param1=node.param1, param2=node.param2}
|
|
callback(pos_copy, node_copy, digger)
|
|
end
|
|
end
|
|
|
|
-- This is used to allow mods to redefine core.item_place and so on
|
|
-- NOTE: This is not the preferred way. Preferred way is to provide enough
|
|
-- callbacks to not require redefining global functions. -celeron55
|
|
local function redef_wrapper(table, name)
|
|
return function(...)
|
|
return table[name](...)
|
|
end
|
|
end
|
|
|
|
--
|
|
-- Item definition defaults
|
|
--
|
|
|
|
core.nodedef_default = {
|
|
-- Item properties
|
|
type="node",
|
|
-- name intentionally not defined here
|
|
description = "",
|
|
groups = {},
|
|
inventory_image = "",
|
|
wield_image = "",
|
|
wield_scale = {x=1,y=1,z=1},
|
|
stack_max = 99,
|
|
usable = false,
|
|
liquids_pointable = false,
|
|
tool_capabilities = nil,
|
|
node_placement_prediction = nil,
|
|
|
|
-- Interaction callbacks
|
|
on_place = redef_wrapper(core, 'item_place'), -- core.item_place
|
|
on_drop = redef_wrapper(core, 'item_drop'), -- core.item_drop
|
|
on_use = nil,
|
|
can_dig = nil,
|
|
|
|
on_punch = redef_wrapper(core, 'node_punch'), -- core.node_punch
|
|
on_rightclick = nil,
|
|
on_dig = redef_wrapper(core, 'node_dig'), -- core.node_dig
|
|
|
|
on_receive_fields = nil,
|
|
|
|
on_metadata_inventory_move = core.node_metadata_inventory_move_allow_all,
|
|
on_metadata_inventory_offer = core.node_metadata_inventory_offer_allow_all,
|
|
on_metadata_inventory_take = core.node_metadata_inventory_take_allow_all,
|
|
|
|
-- Node properties
|
|
drawtype = "normal",
|
|
visual_scale = 1.0,
|
|
-- Don't define these because otherwise the old tile_images and
|
|
-- special_materials wouldn't be read
|
|
--tiles ={""},
|
|
--special_tiles = {
|
|
-- {name="", backface_culling=true},
|
|
-- {name="", backface_culling=true},
|
|
--},
|
|
alpha = 255,
|
|
post_effect_color = {a=0, r=0, g=0, b=0},
|
|
paramtype = "none",
|
|
paramtype2 = "none",
|
|
is_ground_content = true,
|
|
sunlight_propagates = false,
|
|
walkable = true,
|
|
pointable = true,
|
|
diggable = true,
|
|
climbable = false,
|
|
buildable_to = false,
|
|
floodable = false,
|
|
liquidtype = "none",
|
|
liquid_alternative_flowing = "",
|
|
liquid_alternative_source = "",
|
|
liquid_viscosity = 0,
|
|
drowning = 0,
|
|
light_source = 0,
|
|
damage_per_second = 0,
|
|
selection_box = {type="regular"},
|
|
legacy_facedir_simple = false,
|
|
legacy_wallmounted = false,
|
|
}
|
|
|
|
core.craftitemdef_default = {
|
|
type="craft",
|
|
-- name intentionally not defined here
|
|
description = "",
|
|
groups = {},
|
|
inventory_image = "",
|
|
wield_image = "",
|
|
wield_scale = {x=1,y=1,z=1},
|
|
stack_max = 99,
|
|
liquids_pointable = false,
|
|
tool_capabilities = nil,
|
|
|
|
-- Interaction callbacks
|
|
on_place = redef_wrapper(core, 'item_place'), -- core.item_place
|
|
on_drop = redef_wrapper(core, 'item_drop'), -- core.item_drop
|
|
on_secondary_use = redef_wrapper(core, 'item_secondary_use'),
|
|
on_use = nil,
|
|
}
|
|
|
|
core.tooldef_default = {
|
|
type="tool",
|
|
-- name intentionally not defined here
|
|
description = "",
|
|
groups = {},
|
|
inventory_image = "",
|
|
wield_image = "",
|
|
wield_scale = {x=1,y=1,z=1},
|
|
stack_max = 1,
|
|
liquids_pointable = false,
|
|
tool_capabilities = nil,
|
|
|
|
-- Interaction callbacks
|
|
on_place = redef_wrapper(core, 'item_place'), -- core.item_place
|
|
on_secondary_use = redef_wrapper(core, 'item_secondary_use'),
|
|
on_drop = redef_wrapper(core, 'item_drop'), -- core.item_drop
|
|
on_use = nil,
|
|
}
|
|
|
|
core.noneitemdef_default = { -- This is used for the hand and unknown items
|
|
type="none",
|
|
-- name intentionally not defined here
|
|
description = "",
|
|
groups = {},
|
|
inventory_image = "",
|
|
wield_image = "",
|
|
wield_scale = {x=1,y=1,z=1},
|
|
stack_max = 99,
|
|
liquids_pointable = false,
|
|
tool_capabilities = nil,
|
|
|
|
-- Interaction callbacks
|
|
on_place = redef_wrapper(core, 'item_place'),
|
|
on_secondary_use = redef_wrapper(core, 'item_secondary_use'),
|
|
on_drop = nil,
|
|
on_use = nil,
|
|
}
|