67 lines
1.7 KiB
Lua
67 lines
1.7 KiB
Lua
local load_image = function(file_path)
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local file = io.open(file_path, "rb")
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local raw_data = file:read("*all")
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file:close()
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local love_file_data = love.filesystem.newFileData(raw_data, file_path)
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local love_image = love.graphics.newImage(love_file_data)
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return love_image
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end
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local tilesheet = {}
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local tile_metatable = {
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__index = {
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draw = function(self, ...)
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love.graphics.draw(self.image, self.quad, ...)
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end,
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}
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}
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local tilesheet.load = function(data_or_path)
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local tile_image, tile_size
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local tiles = {}
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if type(data_or_path) == "table" then
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tile_image = load_image(data_or_path.image_path)
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tile_size = data_or_path.tile_size
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for name, tile_data in pairs(data_or_path.tiles) do
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tiles[name] = setmetatable({
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image = tile_image,
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quad = love.graphics.newQuad( (tile_data.x - 1) * tile_size, (tile_data.y - 1) * tile_size, tile_size, tile_size, tile_image ),
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}, tile_metatable)
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end
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else
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tile_image = load_image(data_or_path)
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end
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-- this mess feels kinda wasteful/repetitive
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local image_width, image_height = tile_image:getDimensions()
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local tile_usage = {}
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for x = 1, image_width / tile_size do
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tile_usage[x] = {}
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for y = 1, image_height / tile_size do
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tile_usage[x][y] = false
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end
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end
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if type(data_or_path) == "table" then
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for name, tile_data in pairs(data_or_path.tiles) do
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tile_usage[tile_data.x][tile_data.y] = true
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end
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end
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tilesheet.active_sheet = {
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image = tile_image,
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size = tile_size,
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tiles = tiles,
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tile_usage = tile_usage,
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}
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return tiles
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end
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return setmetatable(tilesheet, {
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__call = function(self, ...) return tilesheet.load(...) end
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})
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