func Vec2Add(dest, v1, v2 Vec2) {
	dest[0] = v1[0] + v2[0]
	dest[1] = v1[1] + v2[1]
}
func Vec2Add(dest, v1, v2 Vec2) {
	dest[0] = v1[0] + v2[0]
	dest[1] = v1[1] + v2[1]
}
// Vec2 functions
// Vec2Add performs a vector addition. dest = v1 + v2
//
//     dest   [out] The result vector.
//     v1     [in]  The base vector.
//     v2     [in]  The vector to add to v1.