package playground; public class Level7 extends SpaceInvadersLevel { @Override protected int calcNrEnemies() { return 21;//SpaceInvadersLevel.NR_ENEMIES; } @Override protected double calcEnemySpeedX() { return 800; } @Override protected double calcEnemySpeedY() { return 140; } @Override protected String getStartupMessage() { return "Level 7, get ready!"; } }