Edge.java

package Q7_06_Jigsaw;

public class Edge {	
	private Shape shape;
	private String code; // used to mock how pieces would fit together.
	private Piece parentPiece;
	
	public Edge(Shape shape, String code) {
		this.shape = shape;
		this.code = code;
	}
	
	private String getCode() {
		return code;
	}
	
	public Edge _createMatchingEdge() {
		if (shape == Shape.FLAT) return null;
		return new Edge(shape.getOpposite(), getCode());
	}

	/* Check if this edge fits into the other one. */
	public boolean fitsWith(Edge edge) { 
		return edge.getCode().equals(getCode());
	}
	
	/* Set parent piece. */
	public void setParentPiece(Piece parentPiece) {
		this.parentPiece = parentPiece;
	}
	
	/* Get the parent piece. */
	public Piece getParentPiece() {
		return parentPiece;
	}
	
	/* Return the shape of the edge. */
	public Shape getShape() {
		return shape;
	}
	
	public String toString() {
		return code;
	}
}