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https://github.com/moparisthebest/minetest
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builtin/item.lua: callbacks with copies of positions and nodes rather than recycle the same ones, which callbacks can modify
This commit is contained in:
Perttu Ahola
parent
0cf1ed544c
commit
96eac87d47
170
builtin/item.lua
170
builtin/item.lua
@ -124,76 +124,84 @@ end
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function minetest.item_place_node(itemstack, placer, pointed_thing)
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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" and pointed_thing.type == "node" then
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local under = pointed_thing.under
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local oldnode_under = minetest.env:get_node(under)
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local olddef_under = ItemStack({name=oldnode_under.name}):get_definition()
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olddef_under = olddef_under or minetest.nodedef_default
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local above = pointed_thing.above
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local oldnode_above = minetest.env:get_node(above)
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local olddef_above = ItemStack({name=oldnode_above.name}):get_definition()
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olddef_above = olddef_above or minetest.nodedef_default
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if not olddef_above.buildable_to and not olddef_under.buildable_to then
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minetest.log("info", placer:get_player_name() .. " tried to place"
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.. " node in invalid position " .. minetest.pos_to_string(above)
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.. ", replacing " .. oldnode_above.name)
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return
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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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minetest.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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minetest.log("action", placer:get_player_name() .. " places node "
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.. def.name .. " at " .. minetest.pos_to_string(place_to))
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local oldnode = minetest.env:get_node(place_to)
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local newnode = {name = def.name, param1 = 0, param2 = 0}
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-- Calculate direction for wall mounted stuff like torches and signs
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if def.paramtype2 == 'wallmounted' 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 = minetest.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' 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 = minetest.dir_to_facedir(dir)
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minetest.log("action", "facedir: " .. newnode.param2)
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end
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end
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-- Add node and update
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minetest.env:add_node(place_to, newnode)
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-- Run callback
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if def.after_place_node then
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def.after_place_node(place_to, placer)
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end
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-- Run script hook (deprecated)
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local _, callback
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for _, callback in ipairs(minetest.registered_on_placenodes) do
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callback(place_to, newnode, placer, oldnode)
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end
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itemstack:take_item()
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if def.type ~= "node" or pointed_thing.type ~= "node" then
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return itemstack
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end
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local under = pointed_thing.under
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local oldnode_under = minetest.env:get_node(under)
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local olddef_under = ItemStack({name=oldnode_under.name}):get_definition()
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olddef_under = olddef_under or minetest.nodedef_default
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local above = pointed_thing.above
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local oldnode_above = minetest.env:get_node(above)
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local olddef_above = ItemStack({name=oldnode_above.name}):get_definition()
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olddef_above = olddef_above or minetest.nodedef_default
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if not olddef_above.buildable_to and not olddef_under.buildable_to then
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minetest.log("info", placer:get_player_name() .. " tried to place"
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.. " node in invalid position " .. minetest.pos_to_string(above)
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.. ", replacing " .. oldnode_above.name)
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return
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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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minetest.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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minetest.log("action", placer:get_player_name() .. " places node "
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.. def.name .. " at " .. minetest.pos_to_string(place_to))
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local oldnode = minetest.env:get_node(place_to)
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local newnode = {name = def.name, param1 = 0, param2 = 0}
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-- Calculate direction for wall mounted stuff like torches and signs
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if def.paramtype2 == 'wallmounted' 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 = minetest.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' 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 = minetest.dir_to_facedir(dir)
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minetest.log("action", "facedir: " .. newnode.param2)
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end
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end
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-- Add node and update
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minetest.env:add_node(place_to, newnode)
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-- Run callback
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if def.after_place_node then
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-- Copy place_to 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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def.after_place_node(place_to_copy, placer)
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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(minetest.registered_on_placenodes) do
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-- Copy pos and node 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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callback(place_to_copy, newnode_copy, placer, oldnode_copy)
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end
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itemstack:take_item()
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return itemstack
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end
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@ -243,9 +251,11 @@ function minetest.node_punch(pos, node, puncher)
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-- Run script hook
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local _, callback
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for _, callback in ipairs(minetest.registered_on_punchnodes) do
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callback(pos, node, puncher)
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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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callback(pos_copy, node_copy, puncher)
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end
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end
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function minetest.node_dig(pos, node, digger)
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@ -268,8 +278,8 @@ function minetest.node_dig(pos, node, digger)
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local drops = minetest.get_node_drops(node.name, wielded:get_name())
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-- Wear out tool
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tp = wielded:get_tool_capabilities()
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dp = minetest.get_dig_params(def.groups, tp)
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local tp = wielded:get_tool_capabilities()
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local dp = minetest.get_dig_params(def.groups, tp)
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wielded:add_wear(dp.wear)
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digger:set_wielded_item(wielded)
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@ -282,10 +292,8 @@ function minetest.node_dig(pos, node, digger)
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end
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end
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local oldnode = nil
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local oldmetadata = nil
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if def.after_dig_node then
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oldnode = node;
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oldmetadata = minetest.env:get_meta(pos):to_table()
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end
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@ -294,13 +302,19 @@ function minetest.node_dig(pos, node, digger)
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-- Run callback
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if def.after_dig_node then
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def.after_dig_node(pos, oldnode, oldmetadata, digger)
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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 (deprecated)
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-- Run script hook
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local _, callback
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for _, callback in ipairs(minetest.registered_on_dignodes) do
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callback(pos, node, digger)
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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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callback(pos_copy, node_copy, digger)
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end
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end
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