cnpc.java

行走,对话,碰撞,打斗,一个RPG的演示版本

import java.util.Random;

public class CNpc extends CActor {
	private int up[] = { 0, 1 };

	private int right[] = { 2, 3 };

	private int down[] = { 4, 5 };

	private int left[] = { 6, 7 };

	private int npccount = 0;

	private Random ran;

	private int npcstatus = 0;

	private final int npc_up = 0;

	private final int npc_down = 1;

	private final int npc_left = 2;

	private final int npc_right = 3;

	public CNpc(int x, int y, int frame_w, int frame_h) {
		this.x = x;
		this.y = y;
		this.frame_w = frame_w;
		this.frame_h = frame_h;
		frame = up;
		ran = new Random();
	}

	// 更新NPC状态
	void updateNPC() {
		if (npccount % 15 == 0) {
			npcstatus = (ran.nextInt() >>> 1) % 4;
		}
		getColArea();
		CollisionMap();
		switch (npcstatus) {
		case npc_up:
			if (!isCollisionUp)
				move(0, -1);
			setFrame(up);
			break;
		case npc_down:
			if (!isCollisionDown)
				move(0, 1);
			setFrame(down);
			break;
		case npc_left:
			if (!isCollisionLeft)
				move(-1, 0);
			setFrame(left);
			break;
		case npc_right:
			if (!isCollisionDown)
				move(1, 0);
			setFrame(right);
			break;
		}
		if (npccount > 60)
			npccount = 0;
		else
			npccount++;
	}

}