RoleMap.rar_地图

import java.io.IOException; import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.Graphics; import javax.microedition.lcdui.Image; public class MyCanvas extends Canvas implements Runnable{ //动画图片 Image img = null; Image hero = null; //动画序列 public int standFrame[] = new int[] { 7 }; public int upFrame[] = new int[] { 0, 1, 2, 1 }; public int downFrame[] = new int[] { 6, 7, 8, 7 }; public int leftFrame[] = new int[] { 9, 10, 11, 10 }; public int rightFrame[] = new int[] { 3, 4, 5, 4 }; // 当前的动画索引 int curIndex=0; // 当前的按键 int curKey; int stepLength = 6; // 当前动作 int curAction[]; int x=0; int y=0; private int[][] mapData = new int[20][20]; int maxWidth; int maxHeight; Image buffImage; Graphics buffGraphics; public MyCanvas() { this.setFullScreenMode(true); try { img = Image.createImage("/map/map0.png"); hero = Image.createImage("/hero/hero.png"); //创建双缓冲 buffImage=Image.createImage(getWidth(), getHeight()); buffGraphics=buffImage.getGraphics(); } catch (IOException e) { e.printStackTrace(); } maxWidth=mapData[0].length*24; maxHeight=mapData.length*24; //设定地图数据，对应片中的索引，地图索引从1开始，0表示没有 mapData = new int[][] { { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 }, { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 }, { 1, 1, 18, 18, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 }, { 1, 1, 1, 1, 1, 1, 1, 2, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 }, { 1, 1, 1, 1, 1, 1, 1, 2, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 }, { 1, 1, 1, 1, 1, 6, 1, 2, 18, 18, 1, 6, 1, 1, 1, 1, 1, 1, 1, 1 }, { 1, 1, 1, 1, 1, 1, 1, 1, 18, 18, 1, 1, 1, 1, 1, 6, 1, 1, 1, 1 }, { 1, 1, 1, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1 }, { 1, 1, 1, 1, 1, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 }, { 1, 1, 6, 1, 1, 18, 18, 20, 1, 1, 1, 1, 6, 1, 1, 1, 1, 1, 1, 1 }, { 1, 1, 1, 1, 1, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 }, { 1, 1, 1, 1, 1, 1, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 }, { 1, 1, 1, 1, 20, 1, 18, 18, 1, 20, 1, 1, 1, 1, 20, 1, 1, 1, 1, 1 }, { 1, 1, 1, 1, 1, 1, 1, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 }, { 1, 1, 1, 1, 1, 1, 1, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 }, { 10, 10, 10, 10, 10, 10, 10, 18, 18, 1, 1, 1, 10, 10, 10, 10, 10, 10, 10, 10 }, { 1, 1, 1, 1, 1, 1, 1, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1 }, { 1, 1, 1, 1, 1, 1, 1, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1 }, { 18, 18, 18, 1, 1, 1, 18, 18, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1 }, { 1, 1, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1 } }; curAction = standFrame; Thread t=new Thread(this); t.start(); } protected void paint(Graphics g) { g.setColor(0xffffff); g.fillRect(0, 0, this.getWidth(), this.getHeight()); this.drawMap(g); this.drawHero(g); } //人物与地图的碰撞判断 int block[]={2,6,8,10,20}; public boolean block(int x,int y){ int cx=0,cy=0; //当前坐标转化为在地图上的索引 switch(curKey){ case -1: cx=x/24; cy=y/24; break; case -2: cx=(x+hero.getWidth()/3-10)/24; cy=(y+hero.getHeight()/4-10)/24; break; case -3: cx=(x+hero.getWidth()/3-10)/24; cy=(y+hero.getHeight()/4-10)/24; break; case -4: cx=(x+hero.getWidth()/3-10)/24; cy=(y+hero.getHeight()/4-10)/24; break; } for(int i=0;i<block.length;i++) if(mapData[cy][cx]==block[i]) return true; return false; } // 绘制地图 // 计算屏幕位置 // Image buffImage; // Graphics buffGraphics; int sx; int sy; public void drawMap(Graphics g) { sx=x-getWidth()/2<0?0:x-getWidth()/2; sy=y-getHeight()/2<0?0:y-getHeight()/2; sx=x-getWidth()/2>this.maxWidth-getWidth()-1?maxWidth-getWidth()-1:sx; sy=y-getHeight()/2>this.maxHeight-getHeight()-1?maxHeight-getHeight()-1:sy; //绘制地图的开始索引 int startIndexX=sx/24; int startIndexY=sy/24; //偏移量 int offsetX=sx%24; int offsetY=sy%24; //图片的当前索引 int xPos=0; int yPos=0; for(int i=startIndexX;i<startIndexX+getWidth()/24+1;i++) { for(int j=startIndexY;j<startIndexY+getHeight()/24+1;j++){ this.drawClipImg(xPos*24-offsetX, yPos*24-offsetY, 24, 24, (mapData[j][i]-1)*24, 0, img, buffGraphics); yPos++; } //y轴方向归零 xPos++; yPos=0; } g.drawImage(buffImage, 0, 0, 20); } //画HERO public void drawHero(Graphics g){ //确定当前的索引 curIndex=++curIndex>=curAction.length?0:curIndex; //x-sx为当前坐标相对的屏幕位置 this.drawClipImg(x-sx, y-sy-5, hero.getWidth()/3, hero.getHeight()/4, curAction[curIndex]%3*24, curAction[curIndex]/3*24, hero, g); this.repaint(); } //切割显示图片 public void drawClipImg(int xScreenPos, int yScreenPos, int imgW, int imgH, int xImgPos, int yImgPos, Image img, Graphics g) { if(img==null) return; g.setClip(xScreenPos, yScreenPos, imgW, imgH); g.drawImage(img, xScreenPos - xImgPos, yScreenPos - yImgPos, Graphics.TOP | Graphics.LEFT); g.setClip(0, 0, this.getWidth(), this.getHeight()); } public void keyPressed(int key) { this.curKey=key; switch(curKey){ case -1: this.curAction=upFrame; break; case -2: this.curAction=this.downFrame; break; case -3: this.curAction=this.leftFrame; break; case -4: this.curAction=this.rightFrame; break; } } public void keyReleased(int key) { curKey=500; //设定站立动画 this.curAction=standFrame; } public void move() { int bx=x,by=y; switch(curKey){ case -1: by=by-this.stepLength<hero.getHeight()/4?0:by-this.stepLength; break; case -2: by=by+this.stepLength+hero.getHeight()/4>maxHeight?maxHeight-hero.getHeight()/4:by+this.stepLength; break; case -3: bx=bx-this.stepLength<0?0:bx-this.stepLength; break; case -4: bx=bx+this.stepLength+hero.getWidth()/3>maxWidth?maxWidth-hero.getWidth()/3:bx+this.stepLength; break; } if(block(bx,by)) return; x=bx; y=by; } public void run() { while(true){ this.repaint(); this.move(); try { Thread.sleep(200); } catch (InterruptedException e) { e.printStackTrace(); } } } }