xiaobing.java

java开发的华容道游戏的源码

package com.abc.hrd;

public class Xiaobing extends Qizi {

	public Xiaobing(Qipan qipan, int x, int y) {
		super(qipan, x, y);
		this.w = 1;
		this.h = 1;
	}

	public boolean inside(int x, int y) {
		if (x == this.x && y == this.y) {
			return true;
		} else {
			return false;
		}

	}

	public boolean move(int x, int y) {
		// 原地不动
		if (this.x == x && this.y == y) {
			return false;
		}

		// 横向移动
		if (y == this.y) {
			if (Math.abs(x - this.x) == 1) { // 横向移动一格
				this.x = x;
				return true;
			}
			if (this.x + 2 == x && !qipan.exists(this.x + 1, y)) { // 横向移动二格
				this.x = x;
				return true;
			} else if (this.x - 2 == x && !qipan.exists(this.x - 1, y)) {
				this.x = x;
				return true;
			}
			// 间距太大，超出移动范围
			return false;

		}

		// 纵向移动
		if (x == this.x) {
			if (Math.abs(y - this.y) == 1) { // 纵向移动一格
				this.y = y;
				return true;
			}
			if (this.y + 2 == y && !qipan.exists(x, this.y + 1)) { // 纵向移动二格
				this.y = y;
				return true;
			} else if (this.y - 2 == y && !qipan.exists(x, this.y - 1)) {
				this.y = y;
				return true;
			}
			// 间距太大，超出移动范围
			return false;

		}

		// 斜向移动，下面的算法有无问题?
		if (Math.abs(x - this.x) == 1 && Math.abs(y - this.y) == 1) {
			if (!qipan.exists(this.x, y) || !qipan.exists(x, this.y)) {
				this.x = x;
				this.y = y;
				return true;
			}
		}

		return false;
	}

}