index : minetest.git	gpcf lifo-fixes release
	modified minetest for gpcfs purposes	gpcf

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path: root/src/clientobject.h

	Commit message (Collapse)	Author	Age
*	Migrate to STL containers/algorithms.	Ilya Zhuravlev	2013-03-11
|
*	Update Copyright Years	Sfan5	2013-02-24
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*	Change Minetest-c55 to Minetest	PilzAdam	2013-02-24
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*	A bunch of fixes	MirceaKitsune	2012-11-25
| | | | | | | | | | | |	No longer hide players who are dead. With models, a death animation should be used instead Some changes requested by celeron55 Rename a lot of things in the code, and use better lua api function names Minor code corrections Bump protocol version up, since the models / animations / attachments code creates new client<->server messages
*	Send animations, bone overrides and attachments in entity initialization. ↵	MirceaKitsune	2012-11-25
| | | | | | | | | | | | | | | | | | | |	Clients no longer have to be near an object when an animation or attachment is set to see the changes, and newly connected clients (or a client that simply renders the object for the first time) will get all of those settings. Therefore, the lua script no longer needs to run every X seconds either, just once per entity. Finish fixing the material color code. But it won't work until MineTest has dynamic lighting... another day another feature. Extra checks for the bone positioning / rotation code Many checks and consistency improvements to the client attachment code Make a separate function for checking if a client object is attached. A more in-depth change will be needed here to fix reading of invalid pointers Use a different method of fetching the parent. Fixes the mass segmentation faults when rendering an attachment (some still happen though) Major change to how attachments are handled. Fix the last segmentaton fault, which was due to the parent becoming invalid while being refreshed / removed which would bause the child to remain attached to nothing. Parents remove their children when being deleted themselves and add them back when re-added. Attachments are stored inside a 2D a vector which easily allows both a child to find their parent and a parent to find its children. Remove attachment list entry when an object is being permanently removed. Also avoid duplicate entries in this list when re-attaching the same object The "big code comments" can now go away. Client attachments almost work properly, and I know what else needs to be done
*	Fix some remaining issues with attachments, now they work. Tested with ↵	MirceaKitsune	2012-11-25
| | | |	object->player and player->player attachments
*	Optimize headers	Perttu Ahola	2012-06-17
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*	Switch the license to be LGPLv2/later, with small parts still remaining as ↵	Perttu Ahola	2012-06-05
| | | |	GPLv2/later, by agreement of major contributors
*	ClientActiveObject::debugInfoText()	Perttu Ahola	2012-03-10
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*	Damage groups WIP	Perttu Ahola	2012-03-10
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*	Player-is-SAO WIP	Perttu Ahola	2011-12-01
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*	Create framework for getting rid of global definitions of ↵	Perttu Ahola	2011-11-29
| | | |	node/tool/item/whatever types
*	Improve mobv2	Perttu Ahola	2011-10-15
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*	mobv2	Perttu Ahola	2011-10-15
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*	reorganized a lot of stuff and modified mapgen and objects slightly while ↵	Perttu Ahola	2011-06-26
| | | |	doing it
*	Some work-in-progress in hp and mobs and a frightening amount of random fixes.	Perttu Ahola	2011-04-21
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*	implemented rats in new system to verify that it works	Perttu Ahola	2011-04-10
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*	new object system	Perttu Ahola	2011-04-10
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*	Some progress on transitioning from MapBlockObject to ActiveObject.	Perttu Ahola	2011-04-08
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*	Removed lua stuff	Perttu Ahola	2011-04-03
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*	preliminary lua scripting framework for objects	Perttu Ahola	2011-02-21
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*	Temporary commit; lots of test code and stuff	Perttu Ahola	2011-02-21

generated by cgit v1.2.3 (git 2.39.1) at 2024-11-13 02:33:05 +0000

-- Minetest: builtin/item.lua

--
-- Item definition helpers
--

function minetest.inventorycube(img1, img2, img3)
	img2 = img2 or img1
	img3 = img3 or img1
	return "[inventorycube"
			.. "{" .. img1:gsub("%^", "&")
			.. "{" .. img2:gsub("%^", "&")
			.. "{" .. img3:gsub("%^", "&")
end

function minetest.get_pointed_thing_position(pointed_thing, above)
	if pointed_thing.type == "node" then
		if above then
			-- The position where a node would be placed
			return pointed_thing.above
		else
			-- The position where a node would be dug
			return pointed_thing.under
		end
	elseif pointed_thing.type == "object" then
		obj = pointed_thing.ref
		if obj ~= nil then
			return obj:getpos()
		else
			return nil
		end
	else
		return nil
	end
end

function minetest.dir_to_facedir(dir)
	if math.abs(dir.x) > math.abs(dir.z) then
		if dir.x < 0 then
			return 3
		else
			return 1
		end
	else
		if dir.z < 0 then
			return 2
		else
			return 0
		end
	end
end

function minetest.dir_to_wallmounted(dir)
	if math.abs(dir.y) > math.max(math.abs(dir.x), math.abs(dir.z)) then
		if dir.y < 0 then
			return 1
		else
			return 0
		end
	elseif math.abs(dir.x) > math.abs(dir.z) then
		if dir.x < 0 then
			return 3
		else
			return 2
		end
	else
		if dir.z < 0 then
			return 5
		else
			return 4
		end
	end
end

function minetest.get_node_drops(nodename, toolname)
	local drop = ItemStack({name=nodename}):get_definition().drop
	if drop == nil then
		-- default drop
		return {nodename}
	elseif type(drop) == "string" then
		-- itemstring drop
		return {drop}
	elseif drop.items == nil then
		-- drop = {} to disable default drop
		return {}
	end

	-- Extended drop table
	local got_items = {}
	local got_count = 0
	local _, item, tool
	for _, item in ipairs(drop.items) do
		local good_rarity = true
		local good_tool = true
		if item.rarity ~= nil then
			good_rarity = item.rarity < 1 or math.random(item.rarity) == 1
		end
		if item.tools ~= nil then
			good_tool = false
			for _, tool in ipairs(item.tools) do
				if tool:sub(1, 1) == '~' then
					good_tool = toolname:find(tool:sub(2)) ~= nil
				else
					good_tool = toolname == tool
				end
				if good_tool then
					break
				end
			end
        	end
		if good_rarity and good_tool then
			got_count = got_count + 1
			for _, add_item in ipairs(item.items) do
				got_items[#got_items+1] = add_item
			end
			if drop.max_items ~= nil and got_count == drop.max_items then
				break
			end
		end
	end
	return got_items
end

function minetest.item_place_node(itemstack, placer, pointed_thing)
	local item = itemstack:peek_item()
	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.env:get_node_or_nil(under)
	local above = pointed_thing.above
	local oldnode_above = minetest.env:get_node_or_nil(above)

	if not oldnode_under or not oldnode_above then
		minetest.log("info", placer:get_player_name() .. " tried to place"
			.. " node in unloaded position " .. minetest.pos_to_string(above))
		return itemstack
	end

	local olddef_under = ItemStack({name=oldnode_under.name}):get_definition()
	olddef_under = olddef_under or minetest.nodedef_default
	local olddef_above = ItemStack({name=oldnode_above.name}):get_definition()
	olddef_above = olddef_above or minetest.nodedef_default

	if not olddef_above.buildable_to and not olddef_under.buildable_to then
		minetest.log("info", placer:get_player_name() .. " tried to place"
			.. " node in invalid position " .. minetest.pos_to_string(above)
			.. ", replacing " .. oldnode_above.name)
		return itemstack
	end

	-- Place above pointed node
	local place_to = {x = above.x, y = above.y, z = above.z}

	-- If node under is buildable_to, place into it instead (eg. snow)
	if olddef_under.buildable_to then
		minetest.log("info", "node under is buildable to")
		place_to = {x = under.x, y = under.y, z = under.z}
	end

	minetest.log("action", placer:get_player_name() .. " places node "
		.. def.name .. " at " .. minetest.pos_to_string(place_to))
	
	local oldnode = minetest.env:get_node(place_to)
	local newnode = {name = def.name, param1 = 0, param2 = 0}

	-- Calculate direction for wall mounted stuff like torches and signs
	if def.paramtype2 == 'wallmounted' then
		local dir = {
			x = under.x - above.x,
			y = under.y - above.y,
			z = under.z - above.z
		}
		newnode.param2 = minetest.dir_to_wallmounted(dir)
	-- Calculate the direction for furnaces and chests and stuff
	elseif def.paramtype2 == 'facedir' then
		local placer_pos = placer:getpos()
		if placer_pos then
			local dir = {
				x = above.x - placer_pos.x,
				y = above.y - placer_pos.y,
				z = above.z - placer_pos.z
			}
			newnode.param2 = minetest.dir_to_facedir(dir)
			minetest.log("action", "facedir: " .. newnode.param2)
		end
	end

	-- Check if the node is attached and if it can be placed there
	if minetest.get_item_group(def.name, "attached_node") ~= 0 and
		not check_attached_node(place_to, newnode) then
		minetest.log("action", "attached node " .. def.name ..
			" can not be placed at " .. minetest.pos_to_string(place_to))
		return itemstack
	end

	-- Add node and update
	minetest.env:add_node(place_to, newnode)

	local take_item = true

	-- Run callback
	if def.after_place_node then
		-- Copy place_to because callback can modify it
		local place_to_copy = {x=place_to.x, y=place_to.y, z=place_to.z}
		if def.after_place_node(place_to_copy, placer, itemstack) then
			take_item = false
		end
	end

	-- Run script hook
	local _, callback
	for _, callback in ipairs(minetest.registered_on_placenodes) do
		-- Copy pos and node because callback can modify them
		local place_to_copy = {x=place_to.x, y=place_to.y, z=place_to.z}
		local newnode_copy = {name=newnode.name, param1=newnode.param1, param2=newnode.param2}
		local oldnode_copy = {name=oldnode.name, param1=oldnode.param1, param2=oldnode.param2}
		if callback(place_to_copy, newnode_copy, placer, oldnode_copy, itemstack) then
			take_item = false
		end
	end

	if take_item then
		itemstack:take_item()
	end
	return itemstack
end

function minetest.item_place_object(itemstack, placer, pointed_thing)
	local pos = minetest.get_pointed_thing_position(pointed_thing, true)
	if pos ~= nil then
		local item = itemstack:take_item()
		minetest.env:add_item(pos, item)
	end
	return itemstack
end

function minetest.item_place(itemstack, placer, pointed_thing)
	-- Call on_rightclick if the pointed node defines it
	if pointed_thing.type == "node" and placer and
			not placer:get_player_control().sneak then
		local n = minetest.env:get_node(pointed_thing.under)
		local nn = n.name
		if minetest.registered_nodes[nn] and minetest.registered_nodes[nn].on_rightclick then
			return minetest.registered_nodes[nn].on_rightclick(pointed_thing.under, n, placer, itemstack) or itemstack
		end
	end

	if itemstack:get_definition().type == "node" then
		return minetest.item_place_node(itemstack, placer, pointed_thing)
	end
	return itemstack
end

function minetest.item_drop(itemstack, dropper, pos)
	if dropper.get_player_name then
		local v = dropper:get_look_dir()
		local p = {x=pos.x+v.x, y=pos.y+1.5+v.y, z=pos.z+v.z}
		local obj = minetest.env:add_item(p, itemstack)
		if obj then
			v.x = v.x*2
			v.y = v.y*2 + 1
			v.z = v.z*2
			obj:setvelocity(v)
		end
	else
		minetest.env:add_item(pos, itemstack)
	end
	return ItemStack("")
end

function minetest.item_eat(hp_change, replace_with_item)
	return function(itemstack, user, pointed_thing)  -- closure
		if itemstack:take_item() ~= nil then
			user:set_hp(user:get_hp() + hp_change)
			itemstack:add_item(replace_with_item) -- note: replace_with_item is optional
		end
		return itemstack
	end
end

function minetest.node_punch(pos, node, puncher)
	-- Run script hook
	local _, callback
	for _, callback in ipairs(minetest.registered_on_punchnodes) do
		-- 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, puncher)
	end
end

function minetest.handle_node_drops(pos, drops, digger)
	-- Add dropped items to object's inventory
	if digger:get_inventory() then
		local _, dropped_item
		for _, dropped_item in ipairs(drops) do
			local left = digger:get_inventory():add_item("main", dropped_item)
			if not left:is_empty() then
				local p = {
					x = pos.x + math.random()/2-0.25,
					y = pos.y + math.random()/2-0.25,
					z = pos.z + math.random()/2-0.25,
				}
				minetest.env:add_item(p, left)
			end
		end
	end
end

function minetest.node_dig(pos, node, digger)
	minetest.debug("node_dig")

	local def = ItemStack({name=node.name}):get_definition()
	-- Check if def ~= 0 because we always want to be able to remove unknown nodes
	if #def ~= 0 and not def.diggable or (def.can_dig and not def.can_dig(pos,digger)) then
		minetest.debug("not diggable")
		minetest.log("info", digger:get_player_name() .. " tried to dig "
			.. node.name .. " which is not diggable "
			.. minetest.pos_to_string(pos))
		return
	end

	minetest.log('action', digger:get_player_name() .. " digs "
		.. node.name .. " at " .. minetest.pos_to_string(pos))

	local wielded = digger:get_wielded_item()
	local drops = minetest.get_node_drops(node.name, wielded:get_name())

	-- Wear out tool
	local tp = wielded:get_tool_capabilities()
	local dp = minetest.get_dig_params(def.groups, tp)
	wielded:add_wear(dp.wear)
	digger:set_wielded_item(wielded)
	
	-- Handle drops
	minetest.handle_node_drops(pos, drops, digger)

	local oldmetadata = nil
	if def.after_dig_node then
		oldmetadata = minetest.env:get_meta(pos):to_table()
	end

	-- Remove node and update
	minetest.env:remove_node(pos)
	
	-- Run callback
	if def.after_dig_node then
		-- 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}
		def.after_dig_node(pos_copy, node_copy, oldmetadata, digger)
	end

	-- Run script hook
	local _, callback
	for _, callback in ipairs(minetest.registered_on_dignodes) do
		-- 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 minetest.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
--

minetest.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(minetest, 'item_place'), -- minetest.item_place
	on_drop = redef_wrapper(minetest, 'item_drop'), -- minetest.item_drop
	on_use = nil,
	can_dig = nil,

	on_punch = redef_wrapper(minetest, 'node_punch'), -- minetest.node_punch
	on_rightclick = nil,
	on_dig = redef_wrapper(minetest, 'node_dig'), -- minetest.node_dig

	on_receive_fields = nil,
	
	on_metadata_inventory_move = minetest.node_metadata_inventory_move_allow_all,
	on_metadata_inventory_offer = minetest.node_metadata_inventory_offer_allow_all,
	on_metadata_inventory_take = minetest.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 = false,
	sunlight_propagates = false,
	walkable = true,
	pointable = true,
	diggable = true,
	climbable = false,
	buildable_to = false,
	liquidtype = "none",
	liquid_alternative_flowing = "",
	liquid_alternative_source = "",
	liquid_viscosity = 0,
	light_source = 0,
	damage_per_second = 0,
	selection_box = {type="regular"},
	legacy_facedir_simple = false,
	legacy_wallmounted = false,
}

minetest.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(minetest, 'item_place'), -- minetest.item_place
	on_drop = redef_wrapper(minetest, 'item_drop'), -- minetest.item_drop
	on_use = nil,
}

minetest.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(minetest, 'item_place'), -- minetest.item_place
	on_drop = redef_wrapper(minetest, 'item_drop'), -- minetest.item_drop
	on_use = nil,
}

minetest.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(minetest, 'item_place'),
	on_drop = nil,
	on_use = nil,
}