basic model

app/src/main/java/chess/model/pieces/Bishop.java

@@ -0,0 +1,18 @@
+package chess.model.pieces;
+
+import chess.model.Color;
+import chess.model.Piece;
+import chess.model.PieceVisitor;
+
+public class Bishop extends Piece {
+
+	public Bishop(Color color) {
+		super(color);
+	}
+
+	@Override
+	public <T> T accept(PieceVisitor<T> visitor) {
+		return visitor.visitPiece(this);
+	}
+
+}

app/src/main/java/chess/model/pieces/King.java

@@ -0,0 +1,17 @@
+package chess.model.pieces;
+
+import chess.model.Color;
+import chess.model.Piece;
+import chess.model.PieceVisitor;
+
+public class King extends Piece {
+
+	public King(Color color) {
+		super(color);
+	}
+
+	@Override
+	public <T> T accept(PieceVisitor<T> visitor) {
+		return visitor.visitPiece(this);
+	}
+}

app/src/main/java/chess/model/pieces/Knight.java

@@ -0,0 +1,17 @@
+package chess.model.pieces;
+
+import chess.model.Color;
+import chess.model.Piece;
+import chess.model.PieceVisitor;
+
+public class Knight extends Piece {
+
+	public Knight(Color color) {
+		super(color);
+	}
+
+	@Override
+	public <T> T accept(PieceVisitor<T> visitor) {
+		return visitor.visitPiece(this);
+	}
+}

app/src/main/java/chess/model/pieces/Pawn.java

@@ -0,0 +1,21 @@
+package chess.model.pieces;
+
+import chess.model.Color;
+import chess.model.Piece;
+import chess.model.PieceVisitor;
+
+public class Pawn extends Piece {
+
+	public Pawn(Color color) {
+		super(color);
+	}
+
+	@Override
+	public <T> T accept(PieceVisitor<T> visitor) {
+		return visitor.visitPiece(this);
+	}
+
+	public int multiplier() {
+		return getColor() == Color.White ? 1 : -1;
+	}
+}

app/src/main/java/chess/model/pieces/Queen.java

@@ -0,0 +1,17 @@
+package chess.model.pieces;
+
+import chess.model.Color;
+import chess.model.Piece;
+import chess.model.PieceVisitor;
+
+public class Queen extends Piece {
+
+	public Queen(Color color) {
+		super(color);
+	}
+
+	@Override
+	public <T> T accept(PieceVisitor<T> visitor) {
+		return visitor.visitPiece(this);
+	}
+}

app/src/main/java/chess/model/pieces/Rook.java

@@ -0,0 +1,17 @@
+package chess.model.pieces;
+
+import chess.model.Color;
+import chess.model.Piece;
+import chess.model.PieceVisitor;
+
+public class Rook extends Piece {
+
+	public Rook(Color color) {
+		super(color);
+	}
+
+	@Override
+	public <T> T accept(PieceVisitor<T> visitor) {
+		return visitor.visitPiece(this);
+	}
+}