newsnakecanvas.java

j2me快乐蛇0.2版代码,内有经典版贪食蛇和新版

import javax.microedition.lcdui.game.GameCanvas;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.util.Vector;
import java.io.IOException;
import javax.microedition.lcdui.Graphics;
import java.lang.Thread;
import javax.microedition.lcdui.game.TiledLayer;
import javax.microedition.lcdui.game.LayerManager;
import javax.microedition.lcdui.Image;
import java.io.IOException;
import javax.microedition.lcdui.Font;
import javax.microedition.lcdui.game.Sprite;
import javax.microedition.rms.RecordStore;
import javax.microedition.rms.RecordStoreNotFoundException;
import javax.microedition.rms.InvalidRecordIDException;
import javax.microedition.rms.RecordStoreException;
import javax.microedition.rms.RecordStoreNotOpenException;
public class NewSnakeCanvas extends GameCanvas implements Runnable{
	private mmenuCanvas parent;
	private Vector snake;
	private Graphics g;
	private GameOpt option;
	private int dir;
	private int speed;
	private int nStage;
	private boolean pauseReq=false;
	private LayerManager lm=null;
	private TiledLayer earth,stage;
	private int[] lv;
	private int score,nSteps,nRmv;
	private int lives,fruitcnts;
	public NewSnakeCanvas(mmenuCanvas p,GameOpt o) {
		super(true);
		parent=p;
		snake=new Vector();
		g=getGraphics();
		option=o;
		setFullScreenMode(true);
		dir=RIGHT;
		nStage=0;
		lv=new int[4];
		lv[0]=500;
		lv[1]=400;
		lv[2]=300;
		lv[3]=200;
		score=0;
	}

	public void run() {		
		Image land=null;
		Image fimg=null;
		Image paper=null;
		Image title=null;
		g.setColor(0);
		g.fillRect(0,0,128,160);
		try{
			Image wait=Image.createImage("/wait.png");
			//g.setColor(0xff,0xff,0x80);
			//g.fillRect(0,0,128,160);
			//g.drawImage(Image.createImage("/girl.jpg"),20,20,g.TOP|g.LEFT);
			g.drawImage(wait,0,0,g.TOP|g.LEFT);
			for(int k=0;k<128;k+=4){
				g.setColor(255,0,0);
				g.fillRect(0,157,k+1,3);
				this.flushGraphics();
				Thread.currentThread().sleep(20);
			}
		}catch(IOException ioe){System.out.println(ioe.getMessage());}
		catch(InterruptedException ie){}
				
		try{
			land=Image.createImage("/earth1.png");
			fimg=Image.createImage("/stage.png");
		}catch(IOException ioe){System.out.println(ioe.getMessage());}
		lm=new LayerManager();
		earth=new TiledLayer(4,11,land,30,14);
		stage=new TiledLayer(20,24,fimg,6,6);
		lm.append(stage);
		lm.append(earth);
		int[] fruitTile=new int[4];
		fruitTile[0]=stage.createAnimatedTile(10);
		fruitTile[1]=stage.createAnimatedTile(14);
		fruitTile[2]=stage.createAnimatedTile(18);
		fruitTile[3]=stage.createAnimatedTile(20);
		int[] add=new int[4];
		add[0]=1;
		add[1]=1;
		add[2]=-1;
		add[3]=-1;
		RecordStore rs=null;
		
		byte[] n=new byte[32];
		InputStream stagefile=null;
		String name=null;
		byte[] map=new byte[480];
		int i,j;
		long time,lastFr,lastSn;
		int key,nextDir;
		boolean redraw,alive;
		POINT tp=new POINT();
		int sel=0;
		boolean k1,k2;
		byte[] data;
		
		lives=3;
			
		for(nStage=0;nStage<2;nStage++){
			snake.removeAllElements();
			stagefile=getClass().getResourceAsStream("/level");
			try{
				stagefile.skip(523*nStage);
				stagefile.read(n);
				name=new String(n);
				g.setColor(0);
				g.fillRect(0,0,128,160);
				g.setColor(0xffffff);
				g.drawString("  Stage "+(nStage+1),32,70,g.TOP|g.LEFT);
				g.drawString(name,28,90,g.TOP|g.LEFT);
				stagefile.read(n,0,11);
				earth.fillCells(0,0,4,11,n[0]);
				speed=n[1];
				dir=n[2];
				snake.addElement(new POINT(n[3],n[4],1));
				snake.addElement(new POINT(n[5],n[6],n[7]));
				snake.addElement(new POINT(n[8],n[9],n[10]));
				stagefile.read(map);
				stagefile.close();
				stagefile=null;
				name=null;
				flushGraphics();
				Thread.currentThread().sleep(2000);
			}catch(IOException ioe){
			}catch(InterruptedException ie){}
			fruitcnts=0;
			for(j=0;j<24;j++){
				for(i=0;i<20;i++){
					switch(map[j*20+i]){
					case 0x00:	stage.setCell(i,j,0);	break;
					case 0x01:	stage.setCell(i,j,1);	break;
					case 0x02: 	
					case 0x03:
					case 0x04:
					case 0x05:	stage.setCell(i,j,fruitTile[map[j*20+i]-2]);	
							fruitcnts++;
							break;
					default:
						//System.out.println("Map data is corrupted! @"+i+","+j);
					}
				}
			}
			if(dir==UP)	stage.setCell(n[3],n[4],2);
			else if(dir==DOWN) stage.setCell(n[3],n[4],4);
			else if(dir==LEFT)	stage.setCell(n[3],n[4],3);
			else if(dir==RIGHT) stage.setCell(n[3],n[4],5);
			stage.setCell(n[5],n[6],n[7]+4);
			stage.setCell(n[8],n[9],n[10]+4);
			lastFr=0;
			lastSn=0;
			nextDir=dir;
			redraw=false;
			alive=true;
			nSteps=0;
			nRmv=0;
			while(fruitcnts>0){
				k1=false;
				k2=false;
				key=getKeyStates();				
				while(pauseReq){
					g.setColor(0xff00ff);
					g.fillRoundRect(30,38,70,40,7,7);
					g.setColor(0xffff00);
					g.fillRoundRect(30,20,70,23,7,7);
					g.setColor(0);
					g.drawRoundRect(30,20,70,58,7,7);
					g.drawString("     暂停  ",32,22,g.TOP|g.LEFT);
					g.drawString("     继续  ",32,42,g.TOP|g.LEFT);
					g.drawString("     退出  ",32,62,g.TOP|g.LEFT);
					g.drawLine(30,60,100,60);
					if(sel==0){
						g.drawChar('>',34,42,g.TOP|g.LEFT);
					}else{
						g.drawChar('>',34,62,g.TOP|g.LEFT);
					} 
					flushGraphics();
					key=getKeyStates();
					k2=(key&UP_PRESSED)!=0||(key&DOWN_PRESSED)!=0;
					if(k1&&(k2==false))	{sel=1-sel;	k1=false;}
					else if(k2) k1=true;
					if((key&FIRE_PRESSED)!=0){
						if(sel==0){
							pauseReq=false;
						}else{
							parent.backToMenu();
							return;
						}
					}
				}
				key=getKeyStates();
				if((key&UP_PRESSED)!=0){
					if(dir!=DOWN) nextDir=UP;
				}else if((key&DOWN_PRESSED)!=0){
					if(dir!=UP)	nextDir=DOWN;
				}else if((key&LEFT_PRESSED)!=0){
					if(dir!=RIGHT)	nextDir=LEFT;
				}else if((key&RIGHT_PRESSED)!=0){
					if(dir!=LEFT) nextDir=RIGHT;
				}
				//if((key&FIRE_PRESSED)!=0) lastSn-=1;
				time=System.currentTimeMillis();
				if(time-lastFr>600){
					lastFr=time;	//  
					for(i=0;i<4;i++){
						j=stage.getAnimatedTile(fruitTile[i]);
						j+=add[i];
						if(j==12+3*i||j==10+3*i) add[i]=0-add[i];
						//System.out.println("Map data is corrupted! @"+i+","+j+" "+add[i]);
						stage.setAnimatedTile(fruitTile[i],j);
					}
					redraw=true;
				}
				if(time-lastSn>lv[speed]){
					//System.out.println(""+snake.size());
					if(snake.size()<3); else
					if(((POINT)snake.elementAt(snake.size()-2)).color==((POINT)snake.lastElement()).color&&((POINT)snake.lastElement()).color==((POINT)snake.elementAt(snake.size()-3)).color){
						//System.out.println("label 1");
						for(i=1;i<4;i++){
							stage.setCell(((POINT)snake.lastElement()).x,((POINT)snake.lastElement()).y,0);
							snake.removeElementAt(snake.size()-1);
						}
						nRmv++;
					}
					lastSn=time;
					tp.setPoint(((POINT)snake.firstElement()).x,((POINT)snake.firstElement()).y);
					dir=nextDir;
					switch(dir){
					case UP:
						tp.y-=1;	break;
					case DOWN:
						tp.y+=1;	break;
					case LEFT:
						tp.x-=1;	break;
					case RIGHT:
						tp.x+=1;	break;
					}
					switch(map[tp.y*20+tp.x]){
					case 0:	break;
					case 1:	alive=false;	break;
					case 2:
					case 3:
					case 4:
					case 5:	
						snake.addElement(new POINT());
						((POINT)snake.lastElement()).color=map[tp.y*20+tp.x];
						map[tp.y*20+tp.x]=0;
						fruitcnts--;
						break;
					}
					//System.out.println("label 3");
					if(stage.getCell(tp.x,tp.y)<10&&stage.getCell(tp.x,tp.y)>5&&(!POINT.samePoint(tp,(POINT)snake.lastElement()))) alive=false;
					if(!alive){
						//System.out.println("You lose!");
						g.setColor(0xff00ff);
						g.fillRoundRect(10,50,110,30,15,15);
						g.setColor(0);
						g.drawRoundRect(10,50,110,30,15,15);
						g.drawString("      失败了!",20,53,g.TOP|g.LEFT);
						flushGraphics();
						key=getKeyStates();
						while(true){
							key=getKeyStates();
							if((key&FIRE_PRESSED)!=0) break;
						}
						for(i=0;i<snake.size();i++){
							stage.setCell(((POINT)snake.elementAt(i)).x,((POINT)snake.elementAt(i)).y,0);
						}
						lives--;
						snake.removeAllElements();
						System.gc();
						snake.addElement(new POINT(n[3],n[4],1));
						snake.addElement(new POINT(n[5],n[6],n[7]));
						snake.addElement(new POINT(n[8],n[9],n[10]));
						if(n[2]==UP)	stage.setCell(n[3],n[4],2);
						else if(n[2]==DOWN) stage.setCell(n[3],n[4],4);
						else if(n[2]==LEFT)	stage.setCell(n[3],n[4],3);
						else if(n[2]==RIGHT) stage.setCell(n[3],n[4],5);
						stage.setCell(n[5],n[6],n[7]+4);
						stage.setCell(n[8],n[9],n[10]+4);
						lastFr=0;
						lastSn=0;
						dir=n[2];
						nextDir=n[2];
						redraw=false;
						alive=true;
						if(lives>0) continue;
						else break;
					}
					stage.setCell(((POINT)snake.lastElement()).x,((POINT)snake.lastElement()).y,0);
					for(i=snake.size()-1;i>0;i--){
						((POINT)snake.elementAt(i)).setPoint(((POINT)snake.elementAt(i-1)).x,((POINT)snake.elementAt(i-1)).y);
					}
					((POINT)snake.firstElement()).setPoint(tp.x,tp.y);
					//System.out.println("label 2");
					for(i=1;i<snake.size();i++){
						stage.setCell(((POINT)snake.elementAt(i)).x,((POINT)snake.elementAt(i)).y,4+((POINT)snake.elementAt(i)).color);
					}
					if(dir==UP)	stage.setCell(tp.x,tp.y,2);
					else if(dir==DOWN) stage.setCell(tp.x,tp.y,4);
					else if(dir==LEFT) stage.setCell(tp.x,tp.y,5);
					else if(dir==RIGHT) stage.setCell(tp.x,tp.y,3);
					nSteps++;
					redraw=true;

					}				
				if(redraw){
					redraw=false;
					g.setClip(4,6,120,144);
					lm.paint(g,4,6);
					flushGraphics();
				}
			}
			if(fruitcnts==0){	
				g.setColor(0xff00ff);
				g.fillRoundRect(10,50,110,30,15,15);
				g.setColor(0);
				g.drawRoundRect(10,50,110,30,15,15);
				g.drawString("Stage clear!",20,53,g.TOP|g.LEFT);
				flushGraphics();
				key=getKeyStates();
				while(true){
					key=getKeyStates();
					if((key&FIRE_PRESSED)!=0) break;
				}
				try{
					g.setClip(0,0,128,160);
					paper=Image.createImage("/paper.png");
					g.drawImage(paper,0,0,g.TOP|g.LEFT);
					title=Image.createImage("/pass.png");
					g.drawImage(title,20,10,g.TOP|g.LEFT);
					flushGraphics();
					Thread.currentThread().sleep(500);
					g.drawString("步数:",20,50,g.TOP|g.LEFT);
					flushGraphics();
					Thread.currentThread().sleep(300);
					g.drawString(Integer.toString(nSteps)+"步",80,50,g.TOP|g.LEFT);
					flushGraphics();
					//Thread.currentThread().sleep(500);
					//g.drawString("X -1 = -"+Integer.toString(nSteps),80,50,g.TOP|g.LEFT);
					g.drawString("消去:",20,70,g.TOP|g.LEFT);
					flushGraphics();
					Thread.currentThread().sleep(500);
					g.drawString(Integer.toString(nRmv)+"次",80,70,g.TOP|g.LEFT);
					flushGraphics();
					//Thread.currentThread().sleep(500);
					//g.drawString("X 10 =  "+Integer.toString(nRmv*10),60,70,g.TOP|g.LEFT);
					g.drawString("关卡分:     "+Integer.toString(nStage*20+20+15*speed),20,90,g.TOP|g.LEFT);
					flushGraphics();
					Thread.currentThread().sleep(500);
					g.drawString("得分:    "+Integer.toString(20+nStage*20-nSteps+nRmv*10),20,112,g.TOP|g.LEFT);
					score=score+nStage*20-nSteps+nRmv*10+20+15*speed;
					g.drawString("总分:    "+Integer.toString(score),20,132,g.TOP|g.LEFT);
					flushGraphics(); 	
					paper=null;
					title=null;				
				}catch(IOException ioe){
				}catch(InterruptedException ie){
				}
				key=getKeyStates();
				while(true){
					key=getKeyStates();
					if((key&FIRE_PRESSED)!=0) break;
				}
				continue;
			}else{
				g.setColor(0xff00ff);
				g.fillRoundRect(10,50,110,30,15,15);
				g.setColor(0);
				g.drawRoundRect(10,50,110,30,15,15);
				g.drawString("游戏结束!",20,53,g.TOP|g.LEFT);
				flushGraphics();
				key=getKeyStates();
				boolean first=false,f=true;
				while(true){
					key=getKeyStates();
					if((key&FIRE_PRESSED)!=0){
						first=true;
					}
					if((first)&&!((key&FIRE_PRESSED)!=0)){
						if(f) f=false;
						else break;
					}
				}
				getKeyStates();
				try{
					rs=RecordStore.openRecordStore("scorerec",false);
					data=rs.getRecord(1);
					System.out.println(data[2]+"  "+data[3]);
					for(i=0;i<5;i++){
						if(score>(data[i*2]*256+data[i*2+1]))break;
					}
					if(i<5){
						for(j=i;j<4;j++){
							data[(j+1)*2]=data[j*2];
							data[(j+1)*2+1]=data[j*2+1];
						}
						data[i*2]=(byte)(score/256);
						data[i*2+1]=(byte)(score%256);
						rs.setRecord(1,data,0,10);
						rs.closeRecordStore();
						g.setColor(0);
						paper=Image.createImage("/paper.png");
						title=Image.createImage("/brk.png");
						g.drawImage(paper,0,0,g.TOP|g.LEFT);
						g.drawImage(title,20,15,g.TOP|g.LEFT);
						flushGraphics();
						for(j=0;j<5;j++){
							if(j==i) g.setColor(0xff0000);
							else g.setColor(0);
							g.drawString(Integer.toString(j+1)+"        "+Integer.toString(data[j*2]*256+data[j*2+1]),22,40+j*20,g.TOP|g.LEFT);
						}
						flushGraphics();
						key=getKeyStates();
						first=false;f=true;
						while(true){
							key=getKeyStates();
							if((key&FIRE_PRESSED)!=0){
							first=true;
							}
							if((first)&&!((key&FIRE_PRESSED)!=0)){
								if(f) f=false;
								else break;
							}
						}
					}
					paper=null;
					title=null;	
				}catch(RecordStoreNotOpenException rsne){
					System.out.println(rsne.getMessage());				
				}catch(InvalidRecordIDException ire){
					System.out.println(ire.getMessage());
				}catch(RecordStoreException rse){
					System.out.println(rse.getMessage());
				}catch(IOException ioe){
					System.out.println(ioe.getMessage());
				}
				parent.backToMenu();
				return;				
			}
		}
		try{
			rs=RecordStore.openRecordStore("scorerec",false);
			data=rs.getRecord(1);
			for(i=0;i<5;i++){
				if(score>(data[i*2]*256+data[i*2+1]))break;
			}
			if(i<5){
				for(j=i;j<4;j++){
					data[(j+1)*2]=data[j*2];
					data[(j+1)*2+1]=data[j*2+1];
				}
				data[i*2]=(byte)(score/256);
				data[i*2+1]=(byte)(score%256);
				rs.setRecord(1,data,0,10);
				rs.closeRecordStore();
				g.setColor(0);
				paper=Image.createImage("/paper.png");
				title=Image.createImage("/brk.png");
				g.drawImage(paper,0,0,g.TOP|g.LEFT);
				g.drawImage(title,20,15,g.TOP|g.LEFT);
				for(j=0;j<5;j++){
					if(j==i) g.setColor(0xff0000);
					else g.setColor(0);
					g.drawString(Integer.toString(j+1)+"     "+Integer.toString(data[j*2]*256+data[j*2+1]),22,40+j*20,g.TOP|g.LEFT);
				}
				flushGraphics();
				key=getKeyStates();
				boolean	first=false,f=true;
						while(true){
							key=getKeyStates();
							if((key&FIRE_PRESSED)!=0){
							first=true;
							}
							if((first)&&!((key&FIRE_PRESSED)!=0)){
								if(f) f=false;
								else break;
							}
						}
			}
			paper=null;
			title=null;					
		}catch(Exception e){
			System.out.println("error");
		}		
	}
	public void keyReleased(int keyCode){
		if(keyCode==-22||keyCode==-7) pauseReq=!pauseReq;
	}	
}