64 lines
1.6 KiB
Lua
64 lines
1.6 KiB
Lua
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-- TODO: collapse nodes when the node under them is removed.
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local function attempt_collapse_at (pos)
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local below = pos + blockgame.vector.dirs.down
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if minetest.get_node(below).name ~= "air" then return end
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minetest.spawn_falling_node(pos)
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end
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local function place_loose_node (itemstack, placer, pointed)
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local result = minetest.item_place(itemstack, placer, pointed)
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attempt_collapse_at(pointed.above)
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return result
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end
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-- collapse nodes that somehow managed to stay in the air.
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blockgame.register_abm({
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label = "collapse collapsible nodes",
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nodenames = {"group:loose"},
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neighbors = {"air"},
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interval = 15,
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chance = 1,
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action = attempt_collapse_at,
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})
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local function attempt_settle_at (pos)
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local below = pos + blockgame.vector.dirs.down
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if minetest.get_node(below).name == "air" then return end
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local def = minetest.registered_nodes[minetest.get_node(pos).name]
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minetest.set_node(pos, {name = def.stable_version})
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end
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-- settle nodes that are still (in the future, it will take some time for loose nodes that are still to settle).
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blockgame.register_abm({
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label = "settle collapsible nodes",
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nodenames = {"group:loose"},
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interval = 30,
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chance = 10,
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action = attempt_settle_at,
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})
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function blockgame.register_loose_version (name)
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local def = minetest.registered_nodes[name]
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if not def then return false end
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local groups = {}
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for key, value in pairs(def.groups) do
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groups[key] = value
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end
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groups.loose = 1
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blockgame.register_node(name .. "_loose", {
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description = "Loose " .. def.description,
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tiles = def.tiles, -- temporary
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groups = groups,
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on_place = place_loose_node,
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stable_version = name,
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})
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return true
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end
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