src/BoardDisplay.java

@@ -26,12 +26,13 @@ public class BoardDisplay extends JPanel {
         this.fields = new JButton[gridSize][gridSize];
         this.ships = new ArrayList<>();
         this.player = player;
+        this.gridSize = gridSize;
 
         // Erstellung von Spielfeld
         for (int i = 0; i <= gridSize; i++) {
             for (int j = 0; j <= gridSize; j++) {
-                final int x = i; // Temporäre Variable
-                final int y = j; // Temporäre Variable
+                final int x = i - 1; // Temporäre Variable
+                final int y = j - 1; // Temporäre Variable
                 if (i == 0 && j == 0) {
                     add(new JLabel(" "));
                 } else if (i == 0) {
@@ -65,13 +66,10 @@ public class BoardDisplay extends JPanel {
                             // field.setBackground(Color.LIGHT_GRAY);
                        // }
                    // });
-                    int finalI = i;
-                    int finalJ = j;
                     field.addMouseListener(new MouseAdapter() {
                         @Override
                         public void mouseClicked(MouseEvent e) {
-                            Point o= new Point(finalI, finalJ);
-                            System.out.println(o);
+                            Point o= new Point(x, y);
                             handleFieldClick(o);
                         }
                     });
@@ -148,17 +146,13 @@ public class BoardDisplay extends JPanel {
         return true;
     }
 
-
-    private void selectShip(MouseEvent e) {
-        Ship current = (Ship) e.getSource();
-    }
-
     /**
      * TODO Funktion beschreiben etc.
      * @param o
      */
     private void handleFieldClick(Point o) {
-        this.currentShip.setPosition(o,player.getBoard().getShips(),gridSize);
+        if (!this.currentShip.setPosition(o,player.getBoard().getShips(),this.gridSize)) {
+        }
         paintFields();
         // Beispiel: Setze ein Schiff bei einem Klick
         //if (setShip(new Ship(3, "TestShip"), o, true,player)) {
@@ -167,8 +161,8 @@ public class BoardDisplay extends JPanel {
     }
 
     public void paintFields() {
-        for(int i = 0; i <= gridSize; i++) {
-            for(int j = 0; j <= gridSize; j++) {
+        for(int i = 0; i < gridSize; i++) {
+            for(int j = 0; j < gridSize; j++) {
                 if(fields[i][j] == null) {
                     continue;
                 }

src/Point.java

@@ -42,4 +42,18 @@ public class Point {
     public static boolean isValidSyntax(String str) {
         return str.matches("^[A-Z]\\d+$");
     }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || this.getClass() != o.getClass()) return false;
+
+        Point p = (Point)o;
+        return p.getX() == this.getX() && p.getY() == this.getY();
+    }
+
+    public boolean neighbours(Point other) {
+        if (other == null) return false;
+        return (int)Math.abs(this.getX() - other.getX()) <= 1 && (int)Math.abs(this.getY() - other.getY()) <= 1;
+    }
 }

src/Ship.java

@@ -105,10 +105,9 @@ public class Ship {
 	        List<Point> otherShipPoints = otherShip.getOccupiedPoints();
 	        // ueberlappen checken
 	        for (Point p : shipPoints) {
-	            if (otherShipPoints.contains(p)) {
-	                // ueberlappen entdeckt
-	                return false;
-	            }
+	        	for (Point otherPoint : otherShipPoints) {
+	        		if (otherPoint.neighbours(p)) return false;
+	        	}
 	        }
 	    }
 

src/ShipButton.java

@@ -1,6 +1,4 @@
 import javax.swing.*;
-import java.awt.event.ActionEvent;
-import java.awt.event.ActionListener;
 
 public class ShipButton extends JButton {
     Ship ship;
@@ -9,7 +7,7 @@ public class ShipButton extends JButton {
         super(ship.getName());
         this.ship = ship;
         this.addActionListener((e)->{
-            boardDisplay.selectCurrentShip(ship);
+            boardDisplay.selectCurrentShip(this.ship);
         });
     }