28 lines
1.1 KiB
Lua
28 lines
1.1 KiB
Lua
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-- The class responsible for loading and drawing tilesets.
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-- This is primarily used by the Tilemap class.
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Tileset = Object:extend()
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function Tileset:init(image, tile_w, tile_h)
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self.image = image
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self.tile_w, self.tile_h = tile_w, tile_h
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self.grid = Grid(math.floor(self.image.w/self.tile_w), math.floor(self.image.h/self.tile_h), 0)
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self.w, self.h = self.grid.w, self.grid.h
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for i = 1, self.grid.w do
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for j = 1, self.grid.h do
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self.grid:set(i, j, love.graphics.newQuad((i-1)*self.tile_w, (j-1)*self.tile_h, self.tile_w, self.tile_h, self.image.w, self.image.h))
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end
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end
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end
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-- Draws a tile based on its tileset 1D index.
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-- If the tileset has width 10 (10 columns) then the index 11 corresponds to the first tile in the second row.
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function Tileset:draw_tile(index, x, y, r, sx, sy, ox, oy)
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love.graphics.draw(self.image.image, self:get_quad(index), x, y, r or 0, sx or 1, sy or sx or 1, ox or 0, oy or 0)
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end
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-- Returns the quad that represents the tile at the given index.
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function Tileset:get_quad(index)
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return self.grid:get(math.index_to_coordinates(index, self.w))
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end
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