if (rect1.x < rect2.x + rect2.width &&
rect1.x + rect1.width > rect2.x &&
rect1.y < rect2.y + rect2.height &&
rect1.y + rect1.height > rect2.y) {
// collision detected!
}
if(ball.y > rect.y - rect.height &&
ball.x > rect.x - rect.widht &&
ball.x < rect.x + rect.widht){
vel.y *= -1;
//collision check for pong game
}
if (rect1.x < rect2.x + rect2.w &&
rect1.x + rect1.w > rect2.x &&
rect1.y < rect2.y + rect2.h &&
rect1.h + rect1.y > rect2.y) {
// collision detected!
}