mirror of https://github.com/minetest/minetest.git
124 lines
3.2 KiB
Lua
124 lines
3.2 KiB
Lua
-- Minetest: builtin/item_entity.lua
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function core.spawn_item(pos, item)
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-- Take item in any format
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local stack = ItemStack(item)
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local obj = core.add_entity(pos, "__builtin:item")
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obj:get_luaentity():set_item(stack:to_string())
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return obj
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end
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core.register_entity(":__builtin:item", {
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initial_properties = {
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hp_max = 1,
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physical = true,
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collide_with_objects = false,
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collisionbox = {-0.17,-0.17,-0.17, 0.17,0.17,0.17},
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visual = "sprite",
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visual_size = {x=0.5, y=0.5},
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textures = {""},
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spritediv = {x=1, y=1},
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initial_sprite_basepos = {x=0, y=0},
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is_visible = false,
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},
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itemstring = '',
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physical_state = true,
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set_item = function(self, itemstring)
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self.itemstring = itemstring
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local stack = ItemStack(itemstring)
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local itemtable = stack:to_table()
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local itemname = nil
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if itemtable then
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itemname = stack:to_table().name
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end
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local item_texture = nil
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local item_type = ""
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if core.registered_items[itemname] then
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item_texture = core.registered_items[itemname].inventory_image
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item_type = core.registered_items[itemname].type
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end
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prop = {
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is_visible = true,
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visual = "sprite",
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textures = {"unknown_item.png"}
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}
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if item_texture and item_texture ~= "" then
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prop.visual = "sprite"
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prop.textures = {item_texture}
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prop.visual_size = {x=0.50, y=0.50}
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else
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prop.visual = "wielditem"
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prop.textures = {itemname}
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prop.visual_size = {x=0.20, y=0.20}
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prop.automatic_rotate = math.pi * 0.25
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end
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self.object:set_properties(prop)
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end,
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get_staticdata = function(self)
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--return self.itemstring
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return core.serialize({
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itemstring = self.itemstring,
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always_collect = self.always_collect,
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})
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end,
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on_activate = function(self, staticdata)
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if string.sub(staticdata, 1, string.len("return")) == "return" then
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local data = core.deserialize(staticdata)
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if data and type(data) == "table" then
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self.itemstring = data.itemstring
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self.always_collect = data.always_collect
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end
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else
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self.itemstring = staticdata
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end
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self.object:set_armor_groups({immortal=1})
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self.object:setvelocity({x=0, y=2, z=0})
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self.object:setacceleration({x=0, y=-10, z=0})
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self:set_item(self.itemstring)
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end,
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on_step = function(self, dtime)
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local p = self.object:getpos()
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p.y = p.y - 0.3
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local nn = core.get_node(p).name
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-- If node is not registered or node is walkably solid and resting on nodebox
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local v = self.object:getvelocity()
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if not core.registered_nodes[nn] or core.registered_nodes[nn].walkable and v.y == 0 then
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if self.physical_state then
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self.object:setvelocity({x=0,y=0,z=0})
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self.object:setacceleration({x=0, y=0, z=0})
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self.physical_state = false
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self.object:set_properties({
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physical = false
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})
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end
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else
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if not self.physical_state then
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self.object:setvelocity({x=0,y=0,z=0})
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self.object:setacceleration({x=0, y=-10, z=0})
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self.physical_state = true
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self.object:set_properties({
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physical = true
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})
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end
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end
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end,
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on_punch = function(self, hitter)
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if self.itemstring ~= '' then
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local left = hitter:get_inventory():add_item("main", self.itemstring)
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if not left:is_empty() then
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self.itemstring = left:to_string()
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return
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end
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end
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self.itemstring = ''
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self.object:remove()
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end,
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})
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