48 lines
1.0 KiB
Lua
48 lines
1.0 KiB
Lua
local c_ignore = minetest.get_content_id("ignore")
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local buildable_to_nodes = {}
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minetest.after(4, function()
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local count = 0
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for name, node in pairs(minetest.registered_nodes) do
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if node.buildable_to and node.drawtype == "airlike" then
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count = count + 1
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local id = minetest.get_content_id(name)
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buildable_to_nodes[id] = true
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end
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end
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minetest.log("action", "[jumpdrive] collected " .. count .. " nodes that are buildable_to")
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end)
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jumpdrive.is_area_empty = function(pos1, pos2)
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local manip = minetest.get_voxel_manip()
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local e1, e2 = manip:read_from_map(pos1, pos2)
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local area = VoxelArea:new({MinEdge=e1, MaxEdge=e2})
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local data = manip:get_data()
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for z=pos1.z, pos2.z do
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for y=pos1.y, pos2.y do
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for x=pos1.x, pos2.x do
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local index = area:index(x, y, z)
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local id = data[index]
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if id == c_ignore then
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return false, "Uncharted"
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end
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if not buildable_to_nodes[id] then
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-- not buildable_to
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return false, "Occupied"
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end
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end
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end
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end
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-- only buildable_to nodes found
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return true, ""
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end
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