private void checkPlatformCollisions() { if (local_bob.velocity.y > 0) return; int len = platforms.size(); for (int i = 0; i < len; i++) { Platform platform = platforms.get(i); if (local_bob.position.y > platform.position.y) { if (local_bob.bounds.overlaps(platform.bounds)) { local_bob.hitPlatform(); listener.jump(); if (rand.nextFloat() > 0.5f) { platform.pulverize(); } break; } } } }