Space Invaders

The classic game Space Invaders, without GUI.

SpaceInvaders/src/tp/p2/game/GameObjects/RegularAlien.java

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+package tp.p2.game.GameObjects;
+
+import tp.p2.game.FileContentsVerifier;
+import tp.p2.game.Game;
+
+/**
+ * @author Fernando M<>ndez Torrubiano
+ *
+ */
+public class RegularAlien extends AlienShip {
+	//Atributos:
+	private String letra;
+	private boolean explosive;
+	
+	//Constructor:
+	public RegularAlien(Game game, int fila, int col, int live) {
+		super(game, fila, col, live);
+		this.letra = "C";
+		this.explosive = false;
+		numAliens++;
+	}
+	
+	public RegularAlien() {
+		super(null, 0, 0, 2);
+		this.letra = "C";
+		this.explosive = false;
+		numAliens++;
+	}
+	
+	public RegularAlien(Game game, int fila, int col, int live, String letra) {
+		super(game, fila, col, live);
+		this.letra = letra;
+		this.explosive = false;
+		numAliens++;
+	}
+
+	public int getLive() {
+		return this.live;
+	}
+	
+	public boolean isDead() {
+		return this.getLive() > 0;
+	}
+
+	@Override
+	public void computerAction() {
+		if((!this.explosive) && (this.game.getRandom().nextDouble() < this.level.getTurnExplodeFrequency())) {
+			this.explosive = true;
+			this.letra = "E";
+		}
+	}
+
+	@Override
+	public void onDelete() {
+		if(this.live == 0) {
+			if(!this.explosive) { this.isAlive = false; }
+				numAliens--;
+				if(numAliens == 0) { allDead = true; }
+			
+			this.game.receivePoints(5);
+		}
+	}
+
+	@Override
+	public String toString() {
+		return this.letra + "[" + this.live + "]";
+	}
+	
+	@Override
+	public String serializer() {
+		String letra = "R";
+		if(explosive) {letra = this.letra;}
+		return letra + ";"
+				+ this.fila + ","
+				+ this.columna + ";"
+				+ this.live + ";"
+				+ this.game.getRestCycles() + ";"
+				+ this.direction;
+	}
+	
+	//M<>todos si la nave es explosiva:
+	public void explodeAttack(GameObject other) {
+		other.recibeExplodeAttack(Game.DAMAGE);
+	}
+	
+	public boolean performAttack(GameObject other) {
+		boolean attack = false;
+		
+		if(this.explosive && this.live == 0) {
+			if(other.isAlive()) {
+				if(other.isOnPosition(fila-1, columna) || other.isOnPosition(fila+1, columna) || other.isOnPosition(fila, columna-1) || other.isOnPosition(fila, columna+1)) { 
+					this.explodeAttack(other); //restar vida
+					attack = true;
+				}
+			}
+			this.isAlive = false;
+		}
+		
+		return attack;
+	}
+
+	@Override
+	public GameObject parse(String stringFromFile, Game game2, FileContentsVerifier verifier) {
+		String[] words = stringFromFile.split(FileContentsVerifier.separator1);
+		String[] coords = words[1].split(FileContentsVerifier.separator2);
+		if(words[0].equals("R")) {
+			return verifier.verifyRegularShipString(stringFromFile, game2, 2) ? 
+						new RegularAlien(game2, Integer.parseInt(coords[0]), Integer.parseInt(coords[1]), Integer.parseInt(words[2])):null;
+		}
+		else {
+			return verifier.verifyExplosiveShipString(stringFromFile, game2, 2) ? 
+					new RegularAlien(game2, Integer.parseInt(coords[0]), Integer.parseInt(coords[1]), Integer.parseInt(words[2]), words[0]):null;
+		}
+	}
+}