Moves for pawn, rook, knight and bishop are done

src/backend/MovePiece.java

@@ -10,7 +10,7 @@ public class MovePiece {
         this.board = board;
     }
 
-    
+  //Pawn movement logic  
     public boolean movePawn(int x, int y) { //method definition for pawn
         int currentX = piece.getX(); // we call the method getX to get x coordinates
         int currentY = piece.getY(); // we call the method getY to get y coordinates
@@ -32,9 +32,12 @@ public class MovePiece {
         else if (Math.abs(x - currentX) == 1 && y == currentY + direction && board.getPiece(x, y) != null && board.getPiece(x, y).isWhite() != isWhite) {
             board.movePiece(currentX, currentY, x, y); // we go diagonally where another figure is placed
             return true;
+        
         }
         return false;
     }
+    
+    //Rook movement logic
     public boolean moveRook(int x, int y) {
         int currentX = piece.getX();
         int currentY = piece.getY();
@@ -54,6 +57,8 @@ public class MovePiece {
         
         return false; //if not it was unsuccessful
     }
+    
+     // Path Clearance Logic for Rook and Bishop
     private boolean isPathClear(int currentX, int currentY, int targetX, int targetY) { //method to check if the path is clear
         if (currentX == targetX) { //checks if it moves vertically
             int step = (targetY > currentY) ? 1 : -1; // decides the direction of the step
@@ -70,10 +75,74 @@ public class MovePiece {
                     return false; // Blocked path
                 }
             }
+            
+        } else if (Math.abs(currentX - targetX) == Math.abs(currentY - targetY)) {
+            int stepX = (targetX > currentX) ? 1 : -1;
+            int stepY = (targetY > currentY) ? 1 : -1;
+            int x = currentX + stepX;
+            int y = currentY + stepY;
+            while (x != targetX && y != targetY) {
+                if (board.getPiece(x, y) != null) {
+                    return false;
+                }
+                x += stepX;
+                y += stepY;
+            }
         }
+      
         return true; // No obstacles found
     }
+    
+    //Knight movement logic
+    public boolean moveKnight(int x, int y) {
+        int currentX = piece.getX();
+        int currentY = piece.getY();
+        
+        int[][] knightMoves = {  //we establish all possible moves a knight can have
+                {2, 1}, {2, -1}, {-2, 1}, {-2, -1},
+                {1, 2}, {1, -2}, {-1, 2}, {-1, -2}
+            };
+    
+        for (int[] move : knightMoves) { // we create a loop through each possible move
+            if (currentX + move[0] == x && currentY + move[1] == y) { // checks if move matches the target coordination (move0 is in x direction, move 1 in y)
+                Piece targetPiece = board.getPiece(x, y); //get the piece on the target spot
+                if (targetPiece == null || targetPiece.isWhite() != piece.isWhite()) {
+                    board.movePiece(currentX, currentY, x, y); //move our figure to the target spot
+                    return true;
+                }
+            }
+        
+        }
+        return false;
+    }
+    
+ // Bishop Movement Logic
+    public boolean moveBishop(int x, int y) {
+        int currentX = piece.getX();
+        int currentY = piece.getY();
+
+        if (Math.abs(currentX - x) == Math.abs(currentY - y) && isPathClear(currentX, currentY, x, y)) {
+            Piece targetPiece = board.getPiece(x, y);
+            if (targetPiece == null || targetPiece.isWhite() != piece.isWhite()) {
+                board.movePiece(currentX, currentY, x, y);
+                return true;
+            }
+        }
+        return false;
+    }
+    
+    
+    
 }
+        
+    
+
+        
+    
+    
+    
+    
+