cactor.java

行走,对话,碰撞,打斗,一个RPG的演示版本

import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;

public class CActor implements Const {
	// x坐标
	public int x = 0;

	// y坐标
	public int y = 0;

	// 帧的索引值
	public int frameindex = 0;

	// 每帧的宽
	public int frame_w = 0;

	// 每帧的高
	public int frame_h = 0;

	// 碰撞区域左x坐标
	public int col_lx = 0;

	// 碰撞区域右x坐标
	public int col_rx = 0;

	// 碰撞区域上y坐标
	public int col_uy = 0;

	// 碰撞区域下y坐标
	public int col_dy = 0;

	// 是否碰撞
	public boolean s_isCol = true;

	// 角色图片
	public Image img = null;

	// 帧序列
	public int frame[];

	// 角色移动速度
	public int move_speed;

	// 物理层地图数据
	public int[][] colmapdata;

	// 方向布尔值
	public boolean dir_up = false;

	public boolean dir_down = false;

	public boolean dir_left = false;

	public boolean dir_right = false;

	// 方向上碰撞布尔值
	public boolean isCollisionUp = false;

	public boolean isCollisionDown = false;

	public boolean isCollisionLeft = false;

	public boolean isCollisionRight = false;

	// 是否死亡
	public boolean islive = true;

	/*
	 * 判断是否与地图数组碰撞
	 */
	boolean CollisionArray(int col, int map[]) {
		for (int i = 0; i < map.length; i++) {
			if (col == map[i]) {
				return true;
			}
		}
		return false;
	}

	/*
	 * 判断是否与地图碰撞
	 */
	void CollisionMap() {
		if (dir_up) {
			int temp1 = CMap.mapdata_overpl[getNextCol(true, y)][getRow(col_lx)];
			int temp2 = CMap.mapdata_overpl[getNextCol(true, y)][getRow(col_rx)];
			if (CollisionArray(temp1, CMap.mapcol)
					|| CollisionArray(temp2, CMap.mapcol))
				isCollisionUp = true;
		}
		if (dir_down) {
			int temp1 = CMap.mapdata_overpl[getNextCol(false, y)][getRow(col_lx)];
			int temp2 = CMap.mapdata_overpl[getNextCol(false, y)][getRow(col_rx)];
			if (CollisionArray(temp1, CMap.mapcol)
					|| CollisionArray(temp2, CMap.mapcol))
				isCollisionDown = true;
		}
		if (dir_left) {
			int temp1 = CMap.mapdata_overpl[getCol(col_uy)][getNextRow(true, x)];
			int temp2 = CMap.mapdata_overpl[getCol(col_dy)][getNextRow(true, x)];
			if (CollisionArray(temp1, CMap.mapcol)
					|| CollisionArray(temp2, CMap.mapcol))
				isCollisionLeft = true;
		}
		if (dir_right) {
			int temp1 = CMap.mapdata_overpl[getCol(col_uy)][getNextRow(false, x)];
			int temp2 = CMap.mapdata_overpl[getCol(col_dy)][getNextRow(false, x)];
			if (CollisionArray(temp1, CMap.mapcol)
					|| CollisionArray(temp2, CMap.mapcol))
				isCollisionRight = true;
		}
	}

	/*
	 * 得到角色碰撞区域坐标
	 */
	public void getColArea() {
		col_lx = x;
		col_rx = x + frame_w;
		col_uy = y;
		col_dy = y + frame_h;
	}

	/*
	 * 得到角色当前所在列
	 */
	public int getCol(int y) {
		return y / CGame.mp.block_h;
	}

	/*
	 * 得到角色当前所在行
	 */
	public int getRow(int x) {
		return x / CGame.mp.block_w;
	}

	/*
	 * 设置物理层地图数据
	 */
	public void setCollisionMap(int mapdata[][]) {
		colmapdata = mapdata;
	}

	/*
	 * 得到角色行走的下一列数
	 */
	public int getNextRow(boolean left, int x) {
		if (left)
			return (x - move_speed) / CGame.mp.block_w;
		else
			return (x + move_speed + CGame.mp.block_w) / CGame.mp.block_w;
	}

	/*
	 * 得到角色行走的下一行数
	 */
	public int getNextCol(boolean up, int y) {// 返回下一行数
		if (up)
			return (y - move_speed) / CGame.mp.block_h;
		else
			return (y + move_speed + CGame.mp.block_h) / CGame.mp.block_h;
	}

	/*
	 * 设置动画下一帧
	 */
	public void setFrame(int[] frame) {
		this.frame = frame;
	}

	/*
	 * 循环播放动画
	 */
	int i = 0;

	void nextFrame() {
		if (i < frame.length - 1)
			i++;
		else
			i = 0;
		frameindex = frame[i];
	}

	/*
	 * 设置角色图片
	 */
	void setImage(Image img) {
		this.img = img;
	}

	/*
	 * 绘制角色
	 */
	void draw(Graphics g) {
		if (islive) {
			g.setClip(x, y, frame_w, frame_h);
			int tempx, tempy;
			tempx = frameindex % (img.getWidth() / frame_w);
			tempy = frameindex / (img.getWidth() / frame_w);
			g.drawImage(img, x - frame_w * tempx, y - frame_h * tempy, 0);
		}
	}

	/*
	 * 设置角色位置
	 */
	void setPosition(int newx, int newy) {
		x = newx;
		y = newy;
	}

	/*
	 * 设置角色位置
	 */
	void setSpeed(int newSpeed) {
		move_speed = newSpeed;
	}

	/*
	 * 角色移动，并控制其位于屏幕范围内
	 */
	void move(int dx, int dy) {
		if ((x + dx <= SCREEN_WIDTH - MP_FRAME_W) && (x + dx >= 0))
			x += dx;
		if ((y + dy <= SCREEN_HEIGHT - MP_FRAME_H) && (y + dy >= 0))
			y += dy;
	}
}