77 lines
2.4 KiB
Lua
77 lines
2.4 KiB
Lua
local S = df_underworld_items.S
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minetest.register_node("df_underworld_items:glow_amethyst", {
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description = S("Glowing Amethyst Block"),
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_doc_items_longdesc = df_underworld_items.doc.glow_amethyst_desc,
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_doc_items_usagehelp = df_underworld_items.doc.glow_amethyst_usage,
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tiles = {"dfcaverns_glow_amethyst.png"},
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is_ground_content = false,
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groups = {cracky=3, pit_plasma_resistant=1},
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sounds = default.node_sound_glass_defaults(),
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light_source = 6,
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paramtype = "light",
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use_texture_alpha = "blend",
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drawtype = "glasslike",
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sunlight_propagates = true,
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})
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if minetest.get_modpath("radiant_damage") and radiant_damage.override_radiant_damage and radiant_damage.config.enable_mese_damage then
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radiant_damage.override_radiant_damage("mese", {emitted_by={["df_underworld_items:glow_amethyst"] = radiant_damage.config.mese_damage*0.25}})
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end
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local c_amethyst = minetest.get_content_id("df_underworld_items:glow_amethyst")
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local safe_write = function(data, area, vi, c_node)
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if area:containsi(vi) then data[vi] = c_node end
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end
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-- x_slant and z_slant can be 1, 0 or -1
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-- rotated is true or false
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-- length is 1 or more
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df_underworld_items.underworld_shard = function(data, area, vi, x_slant, z_slant, rotated, length)
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if x_slant == nil then x_slant = math.random(-1,1) end
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if z_slant == nil then z_slant = math.random(-1,1) end
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if rotated == nil then rotated = math.random() > 0.5 end
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if length == nil then length = math.random(4, 12) end
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length = math.ceil(length/2) * 2 -- make it an even multiple of 2
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local xstride, ystride, zstride
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ystride = area.ystride
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if rotated then
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xstride = area.zstride
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zstride = 1
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else
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xstride = 1
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zstride = area.zstride
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end
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-- bottom end
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safe_write(data, area, vi, c_amethyst)
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safe_write(data, area, vi+xstride, c_amethyst)
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for i = 1, length do
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vi = vi + ystride
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safe_write(data, area, vi-xstride, c_amethyst)
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safe_write(data, area, vi+zstride, c_amethyst)
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safe_write(data, area, vi, c_amethyst)
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safe_write(data, area, vi-zstride, c_amethyst)
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safe_write(data, area, vi+zstride+xstride, c_amethyst)
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safe_write(data, area, vi+xstride, c_amethyst)
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safe_write(data, area, vi-zstride+xstride, c_amethyst)
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safe_write(data, area, vi+2*xstride, c_amethyst)
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if i % 2 == 0 and i ~= length then
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vi = vi + xstride * x_slant + zstride * z_slant
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end
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end
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vi = vi + ystride
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safe_write(data, area, vi, c_amethyst)
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safe_write(data, area, vi+xstride, c_amethyst)
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end |