'List of all coords in a metatile and their x, y offsets in a parent image.'

def metaSubtiles(self, coord):

    subtiles = []
    coords = self.metatile.allCoords(coord)
    for other in coords:
        r = (other.row - coords[0].row)
        c = (other.column - coords[0].column)
        x = ((c * self.dim) + self.metatile.buffer)
        y = ((r * self.dim) + self.metatile.buffer)
        subtiles.append((other, x, y))
    return subtiles
