--- /dev/null
+-- Minetest: builtin/item.lua
+
+--
+-- Falling nodes
+--
+
+
+--
+-- Falling stuff
+--
+
+minetest.register_entity("__builtin:falling_node", {
+ initial_properties = {
+ physical = true,
+ collisionbox = {-0.5,-0.5,-0.5, 0.5,0.5,0.5},
+ visual = "wielditem",
+ textures = {},
+ visual_size = {x=0.667, y=0.667},
+ },
+
+ nodename = "",
+
+ set_node = function(self, nodename)
+ self.nodename = nodename
+ local stack = ItemStack(nodename)
+ local itemtable = stack:to_table()
+ local itemname = nil
+ if itemtable then
+ itemname = stack:to_table().name
+ end
+ local item_texture = nil
+ local item_type = ""
+ if minetest.registered_items[itemname] then
+ item_texture = minetest.registered_items[itemname].inventory_image
+ item_type = minetest.registered_items[itemname].type
+ end
+ prop = {
+ is_visible = true,
+ textures = {nodename},
+ }
+ self.object:set_properties(prop)
+ end,
+
+ get_staticdata = function(self)
+ return self.nodename
+ end,
+
+ on_activate = function(self, staticdata)
+ self.nodename = staticdata
+ self.object:set_armor_groups({immortal=1})
+ --self.object:setacceleration({x=0, y=-10, z=0})
+ self:set_node(self.nodename)
+ end,
+
+ on_step = function(self, dtime)
+ -- Set gravity
+ self.object:setacceleration({x=0, y=-10, z=0})
+ -- Turn to actual sand when collides to ground or just move
+ local pos = self.object:getpos()
+ local bcp = {x=pos.x, y=pos.y-0.7, z=pos.z} -- Position of bottom center point
+ local bcn = minetest.env:get_node(bcp)
+ -- Note: walkable is in the node definition, not in item groups
+ if minetest.registered_nodes[bcn.name] and
+ minetest.registered_nodes[bcn.name].walkable then
+ local np = {x=bcp.x, y=bcp.y+1, z=bcp.z}
+ -- Check what's here
+ local n2 = minetest.env:get_node(np)
+ -- If it's not air or liquid, remove node and replace it with
+ -- it's drops
+ if n2.name ~= "air" and (not minetest.registered_nodes[n2.name] or
+ minetest.registered_nodes[n2.name].liquidtype == "none") then
+ local drops = minetest.get_node_drops(n2.name, "")
+ minetest.env:remove_node(np)
+ -- Add dropped items
+ local _, dropped_item
+ for _, dropped_item in ipairs(drops) do
+ minetest.env:add_item(np, dropped_item)
+ end
+ -- Run script hook
+ local _, callback
+ for _, callback in ipairs(minetest.registered_on_dignodes) do
+ callback(np, n2, nil)
+ end
+ end
+ -- Create node and remove entity
+ minetest.env:add_node(np, {name=self.nodename})
+ self.object:remove()
+ else
+ -- Do nothing
+ end
+ end
+})
+
+function spawn_falling_node(p, nodename)
+ obj = minetest.env:add_entity(p, "__builtin:falling_node")
+ obj:get_luaentity():set_node(nodename)
+end
+
+--
+-- Some common functions
+--
+
+function nodeupdate_single(p)
+ n = minetest.env:get_node(p)
+ if minetest.get_node_group(n.name, "falling_node") ~= 0 then
+ p_bottom = {x=p.x, y=p.y-1, z=p.z}
+ n_bottom = minetest.env:get_node(p_bottom)
+ -- Note: walkable is in the node definition, not in item groups
+ if minetest.registered_nodes[n_bottom.name] and
+ not minetest.registered_nodes[n_bottom.name].walkable then
+ minetest.env:remove_node(p)
+ spawn_falling_node(p, n.name)
+ nodeupdate(p)
+ end
+ end
+end
+
+function nodeupdate(p)
+ for x = -1,1 do
+ for y = -1,1 do
+ for z = -1,1 do
+ p2 = {x=p.x+x, y=p.y+y, z=p.z+z}
+ nodeupdate_single(p2)
+ end
+ end
+ end
+end
+
+--
+-- Global callbacks
+--
+
+function on_placenode(p, node)
+ nodeupdate(p)
+end
+minetest.register_on_placenode(on_placenode)
+
+function on_dignode(p, node)
+ nodeupdate(p)
+end
+minetest.register_on_dignode(on_dignode)
description = "Sand",
tiles ={"default_sand.png"},
is_ground_content = true,
- groups = {crumbly=3},
+ groups = {crumbly=3, falling_node=1},
sounds = default.node_sound_sand_defaults(),
})
description = "Gravel",
tiles ={"default_gravel.png"},
is_ground_content = true,
- groups = {crumbly=2},
+ groups = {crumbly=2, falling_node=1},
sounds = default.node_sound_dirt_defaults({
footstep = {name="default_gravel_footstep", gain=0.45},
}),
minetest.register_alias("mapgen_stone_with_iron", "default:stone_with_iron")
minetest.register_alias("mapgen_mese", "default:mese")
---
--- Some common functions
---
-
-default.falling_node_names = {}
-
-function nodeupdate_single(p)
- n = minetest.env:get_node(p)
- if default.falling_node_names[n.name] ~= nil then
- p_bottom = {x=p.x, y=p.y-1, z=p.z}
- n_bottom = minetest.env:get_node(p_bottom)
- if n_bottom.name == "air" then
- minetest.env:remove_node(p)
- minetest.env:add_entity(p, "default:falling_"..n.name)
- nodeupdate(p)
- end
- end
-end
-
-function nodeupdate(p)
- for x = -1,1 do
- for y = -1,1 do
- for z = -1,1 do
- p2 = {x=p.x+x, y=p.y+y, z=p.z+z}
- nodeupdate_single(p2)
- end
- end
- end
-end
-
---
--- Falling stuff
---
-
-function default.register_falling_node(nodename, texture)
- default.falling_node_names[nodename] = true
- -- Override naming conventions for stuff like :default:falling_default:sand
- minetest.register_entity(":default:falling_"..nodename, {
- -- Static definition
- physical = true,
- collisionbox = {-0.5,-0.5,-0.5, 0.5,0.5,0.5},
- visual = "cube",
- textures = {texture,texture,texture,texture,texture,texture},
- -- State
- -- Methods
- on_step = function(self, dtime)
- -- Set gravity
- self.object:setacceleration({x=0, y=-10, z=0})
- -- Turn to actual sand when collides to ground or just move
- local pos = self.object:getpos()
- local bcp = {x=pos.x, y=pos.y-0.7, z=pos.z} -- Position of bottom center point
- local bcn = minetest.env:get_node(bcp)
- if bcn.name ~= "air" then
- -- Turn to a sand node
- local np = {x=bcp.x, y=bcp.y+1, z=bcp.z}
- minetest.env:add_node(np, {name=nodename})
- self.object:remove()
- else
- -- Do nothing
- end
- end
- })
-end
-
-default.register_falling_node("default:sand", "default_sand.png")
-default.register_falling_node("default:gravel", "default_gravel.png")
-
--
-- Global callbacks
--
function on_placenode(p, node)
--print("on_placenode")
- nodeupdate(p)
end
minetest.register_on_placenode(on_placenode)
function on_dignode(p, node)
--print("on_dignode")
- nodeupdate(p)
end
minetest.register_on_dignode(on_dignode)
projects / zefram / minetest / minetest_engine.git / commitdiff