added win checker

src/de/itsblue/ConnectFour/GameBoard.java

@@ -68,6 +68,9 @@ public class GameBoard extends JPanel {
             if (!this.BoardContainers[column][i].containsPlate()) {
                 // if the container is empty -> add the plate
                 this.BoardContainers[column][i].insertPlate(plate);
+
+                this.checkContainerForWin(column, i);
+
                 return true;
             }
         }
@@ -143,6 +146,102 @@ public class GameBoard extends JPanel {
         super.setPreferredSize(newSize);
     }
 
+    public boolean checkContainerForWin(int c, int r) {
+
+        System.out.println("checking container c=" + c + " r=" + r + " for win");
+
+        // if there is no plate in the container to check
+        // -> return false
+        if (this.getPlateContainer(c, r) == null || !this.getPlateContainer(c, r).containsPlate())
+            return false;
+
+        // check all possible winnings clockwise
+        int[] sums = new int[8];
+        for (int i = 0; i < 4; i++) {
+            PlateContainer currentContainer = null;
+
+            for (int pc = 0; pc < 8; pc++) {
+                currentContainer = null;
+
+                int checkC = 0;
+                int checkR = 0;
+
+                switch (pc) {
+                case 0:
+                    // check top
+                    checkC = c;
+                    checkR = r + i;
+                    break;
+                case 1:
+                    // check top right vert
+                    checkC = c + i;
+                    checkR = r + i;
+                    break;
+                case 2:
+                    // check right
+                    checkC = c + i;
+                    checkR = r;
+                    break;
+                case 3:
+                    // check bottom right vert
+                    checkC = c + i;
+                    checkR = r - i;
+                    break;
+                case 4:
+                    checkC = c;
+                    checkR = r - i;
+                    // check bottom
+                    break;
+                case 5:
+                    // check bottom left vert
+                    checkC = c - i;
+                    checkR = r - i;
+                    break;
+                case 6:
+                    // check left
+                    checkC = c - i;
+                    checkR = r;
+                    break;
+                case 7:
+                    // check top left vert
+                    checkC = c - i;
+                    checkR = r + i;
+                    break;
+                default:
+                    currentContainer = null;
+                    break;
+                }
+
+                currentContainer = this.getPlateContainer(checkC, checkR);
+
+                if (currentContainer != null && currentContainer.containsPlate())
+                    sums[pc] += currentContainer.getContainedPlate().getValue();
+            }
+        }
+
+        for (int sum : sums) {
+            if (Math.abs(sum) == 4) {
+                if (sum > 0)
+                    System.out.println("negative won");
+                else
+                    System.out.println("positive won");
+
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    public PlateContainer getPlateContainer(int containerColumn, int containerRow) {
+
+        if (this.BoardContainers.length > containerColumn && containerColumn >= 0
+                && this.BoardContainers[containerColumn].length > containerRow && containerRow >= 0)
+            return this.BoardContainers[containerColumn][containerRow];
+
+        return null;
+    }
+
     /*
      * void winningCondition() { for (int i = 0; i <= 2; i++) for (int j = 0; j <=
      * 6; j++) { if (GameBoard[i][j] == p && GameBoard[i + 1][j] == p && GameBoard[i
@@ -157,9 +256,7 @@ public class GameBoard extends JPanel {
      * 
      * for (int i = 0; i < 3; i++) for (int j = 6; j > 2; j--) { if (GameBoard[i][j]
      * == p && GameBoard[i + 1][j - 1] == p && GameBoard[i + 2][j - 2] == p &&
-     * GameBoard[i + 3][j - 3] == p) finish = true; }
-     * 
-     * }
+     * GameBoard[i + 3][j - 3] == p) finish = true; } }
      */
 
     /*

src/de/itsblue/ConnectFour/Plate.java

@@ -17,15 +17,14 @@
 */
 
 package de.itsblue.ConnectFour;
+
 import java.awt.*;
 
 /**
- * Plate models to plate or 'coin' to be inserted into
- * game grid. It therefore has a type (X or O) which
- * comes with a color (X = RED; O = BLACK) and a value
- * (X = -1; O = 1) for further processing. this is a
- * helper class and does not come with any standalone
- * usage.
+ * Plate models to plate or 'coin' to be inserted into game grid. It therefore
+ * has a type (X or O) which comes with a color (X = RED; O = BLACK) and a value
+ * (X = -1; O = 1) for further processing. this is a helper class and does not
+ * come with any standalone usage.
  * 
  * @author Oliver Schappacher
  * @author Dorian Zedler

src/de/itsblue/ConnectFour/PlateContainer.java

@@ -86,8 +86,7 @@ public class PlateContainer extends JPanel {
     public Plate removePlate() {
         if (!this.containsPlate())
             return null;
-
-        this.remove(this.getComponents()[0]);
+            
         Plate ret = this.containedPlate;
         this.containedPlate = null;