66 lines
1.4 KiB
Lua
66 lines
1.4 KiB
Lua
--[[
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TechAge
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=======
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Copyright (C) 2020 Joachim Stolberg
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AGPL v3
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See LICENSE.txt for more information
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TA4 Invisible Light Block
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]]--
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local S = techage.S
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-- 9 light positions in a 3x3 field
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local Positions = {
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{x =-1, y = 0, z = 0},
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{x = 0, y = 0, z =-1},
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{x = 1, y = 0, z = 0},
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{x = 0, y = 0, z = 1},
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{x =-1, y = 0, z =-1},
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{x = 1, y = 0, z = 1},
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{x =-1, y = 0, z = 1},
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{x = 1, y = 0, z =-1},
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}
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minetest.register_node("techage:lightblock", {
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description = "Techage Light Block",
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drawtype = "airlike",
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paramtype = "light",
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light_source = minetest.LIGHT_MAX,
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sunlight_propagates = true,
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walkable = false,
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pointable = false,
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diggable = false,
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buildable_to = true,
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floodable = true,
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is_ground_content = false,
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groups = {not_in_creative_inventory=1},
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drop = "",
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})
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function techage.light_ring(center_pos, on, large)
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if on then
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for _,dir in ipairs(Positions) do
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if large then
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dir = vector.multiply(dir, 2)
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end
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local pos1 = vector.add(center_pos, dir)
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local node = techage.get_node_lvm(pos1)
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if node.name == "air" then
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minetest.set_node(pos1, {name = "techage:lightblock"})
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end
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end
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else
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local pos1 = {x=center_pos.x-2, y=center_pos.y-2, z=center_pos.z-2}
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local pos2 = {x=center_pos.x+2, y=center_pos.y+2, z=center_pos.z+2}
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for _,pos in ipairs(minetest.find_nodes_in_area(pos1, pos2, "techage:lightblock")) do
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minetest.remove_node(pos)
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end
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minetest.fix_light(pos1, pos2)
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end
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end
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