get_triangle_centroid :: (t: Triangle) -> Vec2s64 {
    return get_triangle_centroid(t.p1, t.p2, t.p3);
}

get_triangle_centroid :: (p1: Vec2s64, p2: Vec2s64, p3: Vec2s64) -> Vec2s64 {
    x := (p1.x + p2.x + p3.x) / 3;
    y := (p1.y + p2.y + p3.y) / 3;

    return .{x, y};
}

make_quad_from_rect :: (p1: Vec2s64, p2: Vec2s64) -> Quad {
    return .{
        .{ p1.x, p1.y },
        .{ p2.x, p1.y },
        .{ p2.x, p2.y },
        .{ p1.x, p2.y },
    };
}