win32RPG小游戏

import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.Image; import javax.microedition.lcdui.Graphics; public class MainCanvas extends Canvas implements Runnable { private Image imgBuffer; private Graphics graBuffer; private boolean Running; protected Thread thread; protected GameMIDlet midlet; protected int keyCode; public static final int KEY_SOFTKEY1 = -6; public static final int KEY_SOFTKEY2 = -7; public static final int UP=-1; public static final int NUM2=50; public static final int DOWN=-2; public static final int NUM8=56; public static final int LEFT=-3; public static final int NUM4=52; public static final int RIGHT=-4; public static final int NUM6=54; public static final int NUM_3=51; public static final int FIRE=-5; public static final int NUM_5=53; protected static final byte GS_LOGO = 0; //LOGO显示状态 protected static final byte GS_MENU = 1; //主菜单状态 protected static final byte GS_ENGINE = 2; //游戏中状态（正式进入游戏中） protected static final byte GS_GAME_END = 3; //游戏结束 protected static final byte GS_CONTROL = 4; //游戏控制 protected static final byte GS_ABOUT = 5; //游戏关于信息 private byte nowGameState; private byte preGameState; protected static final int SCREENWIDTH=240; protected static final int SCREENHEIGHT=320; protected boolean init; protected boolean release; protected MenuCanvas menu; protected EngineCanvas engine; public MainCanvas(GameMIDlet midlet) { this.midlet=midlet; setFullScreenMode(true); imgBuffer=Image.createImage(SCREENWIDTH,SCREENHEIGHT); graBuffer=imgBuffer.getGraphics(); nowGameState=GS_MENU; init=true; release=false; Running=true; } protected void startThread() { if(thread==null) { thread=new Thread(this); } thread.start(); } protected void mainLogic() { switch(nowGameState) { case GS_MENU: switch(menu.menuLogic(keyCode)) { case 0: init=true; release=true; preGameState=nowGameState; nowGameState=GS_ENGINE; break; case 1: break; case 2: break; } break; case GS_ENGINE: switch(engine.engineLogic(keyCode)) { case 0: init=true; release=true; preGameState=nowGameState; nowGameState=GS_MENU; break; case 1: break; case 2: break; } break; } } protected void maininit() { switch(nowGameState) { case GS_MENU: menu=new MenuCanvas(); break; case GS_ENGINE: engine=new EngineCanvas(); break; } init=false; } protected void mainrelease() { switch(preGameState) { case GS_MENU: menu.release(); menu=null; break; case GS_ENGINE: engine.release(); engine=null; break; } release=false; } protected void paint(Graphics g) { g.setColor(0); g.fillRect(0,0,SCREENWIDTH,SCREENHEIGHT); //lanlin: offPaint(graBuffer); g.drawImage(imgBuffer,0,0,0); //lanlin: for(int i=0;i<=320;i=i+4) //lanlin: { //lanlin: for(j=0;j<=240;j=j+4) //lanlin: g.setClip(1,1); //lanlin: } } protected void offPaint(Graphics g) { // if(!(release|| init)) // { switch(nowGameState) { case GS_MENU: menu.menuPaint(g); break; case GS_ENGINE: engine.enginePaint(g); break; } // } } public void run() { while(Running) { if(init) maininit(); if(release) {mainrelease();} long startTime=System.currentTimeMillis(); // offPaint(graBuffer); mainLogic(); if(release|| init) continue; offPaint(graBuffer); repaint(); serviceRepaints(); System.gc(); long passTime=System.currentTimeMillis()-startTime; // System.out.println(passTime); if(passTime<100) { try{ Thread.sleep(100-passTime); }catch(Exception e) { } } } } protected void keyPressed(int key) { switch(nowGameState) { case GS_MENU: keyCode=key; break; case GS_ENGINE: keyCode=key; break; } } protected void keyReleased(int key) { switch(nowGameState) { case GS_MENU: keyCode=0; break; case GS_ENGINE: keyCode=0; break; } } }