From 45f754415178494cdafbc6a92089449f89556145 Mon Sep 17 00:00:00 2001
From: ElnuDev <elnu@elnu.com>
Date: Sat, 18 Feb 2023 20:24:03 -0800
Subject: [PATCH] Add TODO Knight class, make Piece abstract

---
 src/Board.java  |  9 ++++-----
 src/Knight.java | 14 ++++++++++++++
 src/Piece.java  | 11 ++---------
 3 files changed, 20 insertions(+), 14 deletions(-)
 create mode 100644 src/Knight.java

diff --git a/src/Board.java b/src/Board.java
index 719a903..c081615 100644
--- a/src/Board.java
+++ b/src/Board.java
@@ -40,11 +40,10 @@ public class Board {
         board = new Piece[BOARD_SIZE][BOARD_SIZE];
 
         // Initialize pieces
-        for (int y = 0; y < 2; y++)
-            for (int x = 0; x < BOARD_SIZE; x++) {
-                set(x, y, new Piece(true));
-                set(x, y + BOARD_SIZE - 2, new Piece(false));
-            }
+        set(1, 0, new Knight(true));
+        set(6, 0, new Knight(true));
+        set(1, 7, new Knight(false));
+        set(6, 7, new Knight(false));
     }
 
     public boolean outOfBounds(int x, int y) {
diff --git a/src/Knight.java b/src/Knight.java
new file mode 100644
index 0000000..511aac3
--- /dev/null
+++ b/src/Knight.java
@@ -0,0 +1,14 @@
+import java.util.ArrayList;
+
+public class Knight extends Piece {
+    public Knight(boolean black) {
+        super(black);
+    }
+
+    @Override
+    public ArrayList<BoardCoordinate> getPossibleMoves(BoardCoordinate position) {
+        ArrayList<BoardCoordinate> possibleMoves = new ArrayList<>();
+        possibleMoves.add(new BoardCoordinate(position.x, position.y - 1)); // to up
+        return possibleMoves;
+    }
+}
diff --git a/src/Piece.java b/src/Piece.java
index c991225..d081207 100644
--- a/src/Piece.java
+++ b/src/Piece.java
@@ -1,7 +1,7 @@
 import java.awt.*;
 import java.util.ArrayList;
 
-public class Piece {
+public abstract class Piece {
     // Width and height of placeholder rectangle graphic
     public static final int DIMENSION = 32;
     public boolean black;
@@ -13,14 +13,7 @@ public class Piece {
         this.black = black;
     }
 
-    public ArrayList<BoardCoordinate> getPossibleMoves(BoardCoordinate position) {
-        ArrayList<BoardCoordinate> possibleMoves = new ArrayList<>();
-        possibleMoves.add(new BoardCoordinate(position.x - 1, position.y)); // to left
-        possibleMoves.add(new BoardCoordinate(position.x + 1, position.y)); // to right
-        possibleMoves.add(new BoardCoordinate(position.x, position.y - 1)); // to up
-        possibleMoves.add(new BoardCoordinate(position.x, position.y + 1)); // to down
-        return possibleMoves;
-    }
+    public abstract ArrayList<BoardCoordinate> getPossibleMoves(BoardCoordinate position);
 
     public ArrayList<BoardCoordinate> getLegalMoves(BoardCoordinate position, Board board) {
         ArrayList<BoardCoordinate> legalMoves = getPossibleMoves(position);