1 -- Minetest: builtin/item.lua
12 minetest.register_entity("__builtin:falling_node", {
13 initial_properties = {
15 collisionbox = {-0.5,-0.5,-0.5, 0.5,0.5,0.5},
18 visual_size = {x=0.667, y=0.667},
23 set_node = function(self, nodename)
24 self.nodename = nodename
25 local stack = ItemStack(nodename)
26 local itemtable = stack:to_table()
29 itemname = stack:to_table().name
31 local item_texture = nil
33 if minetest.registered_items[itemname] then
34 item_texture = minetest.registered_items[itemname].inventory_image
35 item_type = minetest.registered_items[itemname].type
39 textures = {nodename},
41 self.object:set_properties(prop)
44 get_staticdata = function(self)
48 on_activate = function(self, staticdata)
49 self.nodename = staticdata
50 self.object:set_armor_groups({immortal=1})
51 --self.object:setacceleration({x=0, y=-10, z=0})
52 self:set_node(self.nodename)
55 on_step = function(self, dtime)
57 self.object:setacceleration({x=0, y=-10, z=0})
58 -- Turn to actual sand when collides to ground or just move
59 local pos = self.object:getpos()
60 local bcp = {x=pos.x, y=pos.y-0.7, z=pos.z} -- Position of bottom center point
61 local bcn = minetest.env:get_node(bcp)
62 -- Note: walkable is in the node definition, not in item groups
63 if minetest.registered_nodes[bcn.name] and
64 minetest.registered_nodes[bcn.name].walkable then
65 local np = {x=bcp.x, y=bcp.y+1, z=bcp.z}
67 local n2 = minetest.env:get_node(np)
68 -- If it's not air or liquid, remove node and replace it with
70 if n2.name ~= "air" and (not minetest.registered_nodes[n2.name] or
71 minetest.registered_nodes[n2.name].liquidtype == "none") then
72 local drops = minetest.get_node_drops(n2.name, "")
73 minetest.env:remove_node(np)
76 for _, dropped_item in ipairs(drops) do
77 minetest.env:add_item(np, dropped_item)
81 for _, callback in ipairs(minetest.registered_on_dignodes) do
85 -- Create node and remove entity
86 minetest.env:add_node(np, {name=self.nodename})
94 function spawn_falling_node(p, nodename)
95 obj = minetest.env:add_entity(p, "__builtin:falling_node")
96 obj:get_luaentity():set_node(nodename)
100 -- Some common functions
103 function nodeupdate_single(p)
104 n = minetest.env:get_node(p)
105 if minetest.get_node_group(n.name, "falling_node") ~= 0 then
106 p_bottom = {x=p.x, y=p.y-1, z=p.z}
107 n_bottom = minetest.env:get_node(p_bottom)
108 -- Note: walkable is in the node definition, not in item groups
109 if minetest.registered_nodes[n_bottom.name] and
110 not minetest.registered_nodes[n_bottom.name].walkable then
111 minetest.env:remove_node(p)
112 spawn_falling_node(p, n.name)
118 function nodeupdate(p)
122 p2 = {x=p.x+x, y=p.y+y, z=p.z+z}
123 nodeupdate_single(p2)
133 function on_placenode(p, node)
136 minetest.register_on_placenode(on_placenode)
138 function on_dignode(p, node)
141 minetest.register_on_dignode(on_dignode)