public void upY(){
		if (jump > 0) {
			// Jump case
			if (jump < 15) {	// Go higher
				y -= moveY;
				++jump;
			} else if (jump < 30) {	// Go higher more slowly
				y -= moveY/2;
				++jump;				
			} else if (jump == 30) {	// Stand
				++jump;				
			} else if (jump <= 45) {	// Start reaching the ground
				y += moveY/2;
				++jump;
			} else if (jump <60) {	// Start reaching the ground
				y += moveY;
				++jump;
			} else {
				jump = -1;				
			}
		} else {
			// Only gravity :
			y += moveY;
		}
	}