Skylarity

function draw_pos_fixed(surface, top_left_x, top_left_y, top_right_x, top_right_y, bottom_right_x, bottom_right_y, bottom_left_x, bottom_left_y, colour, alpha) {

    var cx, cy, s, t, q, v_buffer;

    var texture = surface_get_texture(surface);
    var uvs = texture_get_uvs(texture);

    var ax = top_right_x - bottom_left_x;
    var ay = top_right_y - bottom_left_y;
    var bx = top_left_x - bottom_right_x;