98 lines
2.9 KiB
Lua
98 lines
2.9 KiB
Lua
-- nodename -> {r,g,b,a}
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local node_colors = {}
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-- nodename -> { {r,g,b,a}, {...}, ... }
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local palette_colors = {}
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-- palette-name -> def
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local palettes = {}
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local MP = minetest.get_modpath("isogen")
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local function parse_file(filename)
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for line in io.lines(filename) do
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if #line > 2 and line:sub(1,1) ~= "#" then
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local i = 1
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local name
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local color = {}
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for str in string.gmatch(line, "([^ ]+)") do
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if i == 1 then name = str end
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if i == 2 then color.r = tonumber(str) end
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if i == 3 then color.g = tonumber(str) end
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if i == 4 then color.b = tonumber(str) end
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if i == 5 and #str > 0 then color.a = tonumber(str) end
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i = i + 1
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end
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node_colors[name] = color
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end
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end
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end
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local function parse_palette(name)
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local f = assert(io.open(MP .. "/colors/" .. name .. ".json", "rb"))
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local content = f:read("*all")
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f:close()
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local def = minetest.parse_json(content)
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palettes[name] = def
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for line in io.lines(MP .. "/colors/" .. name .. ".txt") do
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if #line > 2 and line:sub(1,1) ~= "#" then
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palette_colors[line] = def
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end
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end
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end
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local function parse_mapcolors()
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for name, def in pairs(minetest.registered_nodes) do
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-- mapcolor attribute
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if def.mapcolor then
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node_colors[name] = def.mapcolor
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end
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-- unifieddyes palette
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if def.palette and def.palette == "unifieddyes_palette_extended.png" then
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node_colors[name] = nil
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palette_colors[name] = palettes["unifieddyes_palette_extended"]
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end
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end
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end
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local function init()
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parse_file(MP .. "/colors/" .. "advtrains.txt")
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parse_file(MP .. "/colors/" .. "everness.txt")
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parse_file(MP .. "/colors/" .. "mc2.txt")
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parse_file(MP .. "/colors/" .. "miles.txt")
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parse_file(MP .. "/colors/" .. "mtg.txt")
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parse_file(MP .. "/colors/" .. "naturalbiomes.txt")
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parse_file(MP .. "/colors/" .. "nodecore.txt")
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parse_file(MP .. "/colors/" .. "scifi_nodes.txt")
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parse_file(MP .. "/colors/" .. "vanessa.txt")
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parse_file(MP .. "/colors/" .. "void.txt")
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parse_palette("unifieddyes_palette_extended")
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parse_mapcolors()
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-- check for world-specific colors.txt file
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local world_colors_filename = minetest.get_worldpath() .. "/colors.txt"
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if io.open(world_colors_filename) then
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parse_file(world_colors_filename)
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end
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end
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local is_initialized = false
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function isogen.get_color(node)
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if not is_initialized then
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init()
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is_initialized = true
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end
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if palette_colors[node.name] and node.param2 and node.param2 > 0 then
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-- param2 colored
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return palette_colors[node.name][node.param2+1]
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end
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if node_colors[node.name] then
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-- simple color
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return node_colors[node.name]
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end
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end |