51 lines
1.5 KiB
Lua
51 lines
1.5 KiB
Lua
--
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-- Convert default:dirt to something that fits the environment
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--
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minetest.register_abm({
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label = "Grass spread",
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nodenames = {"group:family:default:dirt"},
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neighbors = {
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"air",
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"group:grass",
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"group:dry_grass",
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"default:snow",
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},
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interval = 6,
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chance = 50,
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catch_up = false,
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action = function(pos, node)
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-- Check for darkness: night, shadow or under a light-blocking node
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-- Returns if ignore above
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local above = {x = pos.x, y = pos.y + 1, z = pos.z}
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if (minetest.get_node_light(above) or 0) < 13 then
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return
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end
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-- Look for spreading dirt-type neighbours
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local p2 = minetest.find_node_near(pos, 1, "group:spreading_dirt_type")
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if p2 then
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local n3 = minetest.get_node(p2)
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local shape = minetest.get_item_group(node.name, "natural_slope")
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local all_shapes = naturalslopeslib.get_all_shapes(n3.name)
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if #all_shapes > 1 then
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minetest.set_node(pos, {name = all_shapes[shape + 1], param2 = node.param2})
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else
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minetest.set_node(pos, {name = n3.name})
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end
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return
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end
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-- Else, any seeding nodes on top?
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local name = minetest.get_node(above).name
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-- Snow check is cheapest, so comes first
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if name == "default:snow" then
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minetest.set_node(pos, {name = "default:dirt_with_snow"})
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elseif minetest.get_item_group(name, "grass") ~= 0 then
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minetest.set_node(pos, {name = "default:dirt_with_grass"})
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elseif minetest.get_item_group(name, "dry_grass") ~= 0 then
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minetest.set_node(pos, {name = "default:dirt_with_dry_grass"})
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end
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end
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})
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