rpgcanvas.java

J2ME rpg游戏《游戏的故事》设计文档以及详细讲解。对于学习j2me rpg游戏编程的初学者十分珍贵

			case 11:	// 	SETPASS
//				System.out.println ("SETPASS");
				d1=scr[p++]&0xff;
				d2=scr[p++]&0xff;
				d3=scr[p++]&0xff;
				pass[d2*mapW+d1]=(d3==0?true:false);
				break;
			case 12:	// 	CHGMAP
//				System.out.println ("CHGMAP");
				//	todo:	change map
				d1=scr[p++]&0xff;
				d2=scr[p++]&0xff;
				d3=scr[p++]&0xff;
				theGame.playerX=d2;
				theGame.playerY=d3;
				theGame.curMap=(String)text.elementAt(d1);
				loadMap(theGame.curMap);
				return;
			case 13:	//	FLUSH
//				System.out.println ("FLUSH");
				render();
				break;
			case 14:	//	WAIT
//				System.out.println ("WAIT");
				d1=scr[p++]&0xff;
				pause(d1*50);
				break;
			case 255:	//	END
//				System.out.println ("END");
				break;
			case 15:	//	IFNOT
				if(scr[p]!=0&&theGame.flags[scr[p]&0xff]){
					p+=1;
					p=findNext(scr,255,p)+1;
//					System.out.println ("IFNOT(true)");
				}else { p++;/*System.out.println ("IFNOT(false)");*/}
				break;
			case 16:	//	BRK
				return;
			case 17:	//	BATTLE
				d1=scr[p++]&0xff;
				d2=scr[p++]&0xff;
				Display.getDisplay(parent).setCurrent(battle);
				if(battle.startBattle(d1)==0) theGame.flags[d2]=true;
				else theGame.flags[d2]=false;
				Display.getDisplay(parent).setCurrent(this);
				break;
			case 18:	//	ADDENEMY
				d1=scr[p++]&0xff;
				theGame.enemy.addElement(new Integer(d1));
				break;
			case 19:	//	CHOOSE
				d1=scr[p++]&0xff;
				doChoose(d1);
				break;
			case 20:	//	GAMEOVER
				endGame();
				parent.setState(parent.STATE_MENU);
				bExit=true;
				return;
			case 21:	//	SHOP
				shop();
				break;
			case 22:	//	ADD
				d1=scr[p++]&0xff;
				d2=scr[p++]&0xff;
				switch(d1){
				case 1:	theGame.money+=d2;	break;
				case 2: theGame.HP+=d2; if(theGame.HP>theGame.MaxHP) theGame.HP=theGame.MaxHP;	break;
				case 3:	theGame.ATK+=d2;	break;
				case 4: theGame.DEF+=d2;	break;
				case 5: theGame.EXP+=d2; 	if(theGame.checkUP()) drawText(null,"Hero擻椡岦忋偟偨!");	break;
				case 6: theGame.AGI+=d2;	break;
				case 7:	theGame.item[0]+=d2;	break;
				case 8: theGame.item[1]+=d2;	break;
				case 9: theGame.item[2]+=d2;	break;
				}
				break;
			default:
//				System.out.println ("Undefined command!");
				break;
			}
		}
	}

	protected int findNext(byte[] b, int val, int nStart) {
		byte v=(byte)(val&0xff);
		while(nStart<b.length){
			if(b[nStart]==v) return nStart;
			nStart++;
		}
		return 0xffff;
	}

	public void pause(long nMillis) {
		try{
			Thread.currentThread().sleep(nMillis);
		}catch(InterruptedException ie){
//			System.out.println (ie.getMessage());
		}
	}
//	private void testScript(){
//		int i,j;
//		for(i=0;i<2;i++){
//			for(j=0;j<script[i].size();j++){
//				System.out.print(((byte[])(script[i].elementAt(j))).length+" ");
//			}
//			System.out.print("\n");
//		}
//	}

	private void drawText(String chr, String t) {
		dlgbox.setPosition(0,scrH-56);
		Font font=Font.getDefaultFont();
		int p=0,j;
		int l=t.length();
		for(j=0;j<56;j+=5){
			dlgbox.setPosition(0,scrH-j);
			dlgbox.paint(g);
			flushGraphics();
		}
		if(chr==null){
			g.setColor(0);
			while(p<l){
				dlgbox.paint(g);
				j=1;
				while(p+j<l&&font.substringWidth(t,p,j)<scrW-12) j++;
				if(p+j>l){
					g.drawString(t.substring(p,l-1),5,scrH-3-font.getHeight()*2,Graphics.TOP|Graphics.LEFT);
					p=l;
				}else{
					g.drawString(t.substring(p,p+j),5,scrH-3-font.getHeight()*2,Graphics.TOP|Graphics.LEFT);
					p+=j;
				}
				j=1;
				while(p+j<l&&font.substringWidth(t,p,j)<scrW-12) j++;
				if(p!=l){
					if(p+j>l){
						g.drawString(t.substring(p,l-1),5,scrH-2-font.getHeight()*1,Graphics.TOP|Graphics.LEFT);
						p=l;
					}else{
						g.drawString(t.substring(p,p+j),5,scrH-2-font.getHeight()*1,Graphics.TOP|Graphics.LEFT);
						p+=j;
					}
				}
				flushGraphics();
				waitKeyRelease(FIRE_PRESSED);
			}
		}else{
			while(p<l){
				dlgbox.paint(g);
				g.setColor(0xff0000);
				g.drawString(chr,6,scrH-2-font.getHeight()*3,Graphics.TOP|Graphics.LEFT);
				g.setColor(0);
				j=1;
				while(p+j<l&&font.substringWidth(t,p,j)<scrW-12) j++;
				if(p+j>l){
					g.drawString(t.substring(p,l-1),5,scrH-3-font.getHeight()*2,Graphics.TOP|Graphics.LEFT);
					p=l;
				}else{
					g.drawString(t.substring(p,p+j),5,scrH-3-font.getHeight()*2,Graphics.TOP|Graphics.LEFT);
					p+=j;
				}
				j=1;
				while(p+j<l&&font.substringWidth(t,p,j)<scrW-12) j++;
				if(p!=l){
					if(p+j>l){
						g.drawString(t.substring(p,l-1),5,scrH-2-font.getHeight()*1,Graphics.TOP|Graphics.LEFT);
						p=l;
					}else{
						g.drawString(t.substring(p,p+j),5,scrH-2-font.getHeight()*1,Graphics.TOP|Graphics.LEFT);
						p+=j;
					}
				}
				flushGraphics();
				waitKeyRelease(FIRE_PRESSED);
			}
		}
		for(j=56;j>0;j-=16){
			dlgbox.setPosition(0,scrH-j);
			g.setColor(0);
			g.fillRect(0,0,scrW,scrH);
			map.paint(g,0,0);
			dlgbox.paint(g);
			flushGraphics();
		}
	}

	private int waitKeyRelease(int keyCode) {
		int ok,ck;
		while((ok=getKeyStates()&keyCode)!=0);
		while((ok=getKeyStates()&keyCode)==0);
		while(true){
			ck=getKeyStates()&keyCode;
			if(ck<ok) break;
		}
		return ok;
	}
	
	private void drawStatus(){
		for(int i=0;i<=scrW/2;i+=12){
//			map.paint(g,0,0);
			g.setClip(scrW/2-i,0,i,scrH);
			menuBack.setPosition(scrW/2-i,0);
			menuBack.paint(g);
			g.setClip(scrW/2,0,i,scrH);
			menuBack.setPosition(i-scrW/2,0);
			menuBack.paint(g);
			flushGraphics(scrW/2-i,0,i*2,scrH);
//			pause(2);
		}
		g.setClip(0,0,scrW,scrH);
		mainChr.setPosition(21,15);	dir=2;
		mainChr.setFrameSequence(walkSeq[2]);
		mainChr.paint(g);
		g.setColor(64,12,128);
		g.drawString("Hero",15,43,Graphics.TOP|Graphics.LEFT);
		g.drawString("HP",100,20,Graphics.TOP|Graphics.LEFT);
		g.drawString("Exp",100,40,Graphics.TOP|Graphics.LEFT);
		g.drawString("Next",100,60,Graphics.TOP|Graphics.LEFT);
		g.drawString("Atk",15,90,Graphics.TOP|Graphics.LEFT);
		g.drawString("Def",80,90,Graphics.TOP|Graphics.LEFT);
		g.drawString("Agi",145,90,Graphics.TOP|Graphics.LEFT);
		g.drawString("僷儞",15,135,Graphics.TOP|Graphics.LEFT);
		g.drawString("栻",90,135,Graphics.TOP|Graphics.LEFT);
		g.drawString("悈",15,155,Graphics.TOP|Graphics.LEFT);
		if(theGame.flags[4]&&!theGame.flags[6]) g.drawString("拑",15,175,Graphics.TOP|Graphics.LEFT);
		if(theGame.flags[7]) g.drawString("恄寱偺杮",90,155,Graphics.TOP|Graphics.LEFT);
		if(theGame.flags[17]&&!theGame.flags[19]) g.drawString("壿暔柧嵶",90,175,Graphics.TOP|Graphics.LEFT);
		if(theGame.flags[17]&&theGame.flags[19]&&!theGame.flags[18]) g.drawString("?暔",15,195,Graphics.TOP|Graphics.LEFT);
		if(theGame.flags[23]) g.drawString("帿彂",90,195,Graphics.TOP|Graphics.LEFT);
		if(theGame.flags[25]) g.drawString("掁傝偺偊偝",15,215,Graphics.TOP|Graphics.LEFT);
		if(theGame.flags[34]) g.drawString("敋栻",90,215,Graphics.TOP|Graphics.LEFT);
		g.setColor(0x00ff00);
		g.drawString(""+theGame.HP,140,20,Graphics.TOP|Graphics.LEFT);
		g.drawString(""+theGame.EXP,140,40,Graphics.TOP|Graphics.LEFT);
		g.drawString(""+(theGame.expNext-theGame.EXP),140,60,Graphics.TOP|Graphics.LEFT);
		g.drawString(""+theGame.ATK,45,90,Graphics.TOP|Graphics.LEFT);
		g.drawString(""+theGame.DEF,110,90,Graphics.TOP|Graphics.LEFT);
		g.drawString(""+theGame.AGI,175,90,Graphics.TOP|Graphics.LEFT);
		g.drawString(""+theGame.item[0],50,135,Graphics.TOP|Graphics.LEFT);
		g.drawString(""+theGame.item[1],125,135,Graphics.TOP|Graphics.LEFT);
		g.drawString(""+theGame.item[2],50,155,Graphics.TOP|Graphics.LEFT);
		
		g.setColor(0);
		g.drawString("/ "+theGame.MaxHP,180,20,Graphics.TOP|Graphics.LEFT);
		g.drawString("LV "+theGame.LV,12,60,Graphics.TOP|Graphics.LEFT);
		g.drawLine(10,120,160,120);
		flushGraphics();
		waitKeyRelease(FIRE_PRESSED);
	}
	private void doChoose(int nFlag){
		int k,t=0;
		while(nFlag==999){
			dlgbox.setPosition(0,scrH-56);
			dlgbox.paint(g);
			g.setColor(64,12,128);
			g.drawString("杮摉偵僎乕儉傪戅弌偡傞?",35,scrH-45,Graphics.TOP|Graphics.LEFT);
			g.drawString("偄偄偊",40,scrH-25,Graphics.TOP|Graphics.LEFT);
			g.drawString("偼偄",scrW/2+40,scrH-25,Graphics.TOP|Graphics.LEFT);
			g.setColor(0xff00000);
			g.drawString("*",scrW/2*t+20,scrH-25,Graphics.TOP|Graphics.LEFT);
			flushGraphics();
			k=waitKeyRelease(LEFT_PRESSED|RIGHT_PRESSED|FIRE_PRESSED);
			if((k&LEFT_PRESSED)!=0||(k&RIGHT_PRESSED)!=0) t=1-t;
			else if((k&FIRE_PRESSED)!=0){
				bExit=(t==0?false:true);
				if(bExit) parent.setState(parent.STATE_MENU);
				return;
			}
		}
		while(true){
			dlgbox.setPosition(0,scrH-56);
			dlgbox.paint(g);
			g.setColor(64,12,128);
			g.drawString("偼偄",40,scrH-45,Graphics.TOP|Graphics.LEFT);
			g.drawString("偄偄偊",scrW/2+40,scrH-45,Graphics.TOP|Graphics.LEFT);
			g.setColor(0xff00000);
			g.drawString("*",scrW/2*t+20,scrH-45,Graphics.TOP|Graphics.LEFT);
			flushGraphics();
			k=waitKeyRelease(LEFT_PRESSED|RIGHT_PRESSED|FIRE_PRESSED);
			if((k&LEFT_PRESSED)!=0||(k&RIGHT_PRESSED)!=0) t=1-t;
			else if((k&FIRE_PRESSED)!=0){
				theGame.flags[nFlag]=(t==0?true:false);
				return;
			}
		}
	}
	private void endGame(){
		drawText("桪婓","偙傟偱廔傢傝偱偡偐?");
	}
	private void drawMonster(){
		for(int i=0;i<=scrW/2;i+=12){
//			map.paint(g,0,0);
			g.setClip(scrW/2-i,0,i,scrH);
			menuBack.setPosition(scrW/2-i,0);
			menuBack.paint(g);
			g.setClip(scrW/2,0,i,scrH);
			menuBack.setPosition(i-scrW/2,0);
			menuBack.paint(g);
			flushGraphics(scrW/2-i,0,i*2,scrH);
//			pause(2);
		}
		g.setClip(0,0,scrW,scrH);
		menuBack.setPosition(0,0);
		int sel=0,k,i;
		while(true){
			menuBack.paint(g);
			g.setColor(0);
			g.drawString("夦暔僲乕僪",scrW/2-30,20,Graphics.TOP|Graphics.LEFT);
			g.setColor(0xff0f0f);
			g.fillRect(15,42,scrW-30,2);
			g.setClip(20,70,200,120);
			i=0;
			for(int j=sel-2;j<sel+3;j++){
				if(j<0) k=theGame.nMonsterCount+j;
				else if(j>=theGame.nMonsterCount) k=j-theGame.nMonsterCount;
				else k=j;
				if(theGame.monsters[k]){
					battle.enemy.setPosition(25,60+i*30);
					battle.enemy.setFrame(battle.enemyData[k][0]);
					battle.enemy.paint(g);
					g.setColor(0);
					g.drawString("Name:"+battle.name[k],60,68+i*30,Graphics.TOP|Graphics.LEFT);
				}else{
					g.setColor(0);
					g.drawRect(25,60+i*30,16,24);
					//g.drawString("?"+k,30,72+i*26,Graphics.TOP|Graphics.LEFT);
					g.drawString("Name:  ???",60,68+i*30,Graphics.TOP|Graphics.LEFT);
				}
				i++;
			}
			g.setClip(0,0,scrW,scrH);
			dlgbox.setPosition(0,scrH-56);
			dlgbox.paint(g);
			g.setColor(0xff0000);
			g.drawRect(24,59+2*30,190,26);
			if(theGame.monsters[sel]){
				g.setColor(0);
				g.drawString("HP",25,scrH-50,Graphics.TOP|Graphics.LEFT);
				g.drawString("Agi",125,scrH-50,Graphics.TOP|Graphics.LEFT);
				g.drawString("Atk",25,scrH-28,Graphics.TOP|Graphics.LEFT);
				g.drawString("Def",125,scrH-28,Graphics.TOP|Graphics.LEFT);
				g.setColor(64,12,128);
				g.drawString(""+battle.enemyData[sel][1],70,scrH-50,Graphics.TOP|Graphics.LEFT);
				g.drawString(""+battle.enemyData[sel][5],170,scrH-50,Graphics.TOP|Graphics.LEFT);
				g.drawString(""+battle.enemyData[sel][2],70,scrH-28,Graphics.TOP|Graphics.LEFT);
				g.drawString(""+battle.enemyData[sel][3],170,scrH-28,Graphics.TOP|Graphics.LEFT);
			}else{
				g.setColor(0);
				g.drawString("HP",25,scrH-50,Graphics.TOP|Graphics.LEFT);
				g.drawString("Agi",125,scrH-50,Graphics.TOP|Graphics.LEFT);
				g.drawString("Atk",25,scrH-28,Graphics.TOP|Graphics.LEFT);
				g.drawString("Def",125,scrH-28,Graphics.TOP|Graphics.LEFT);
				g.setColor(64,12,128);
				g.drawString("???",70,scrH-50,Graphics.TOP|Graphics.LEFT);
				g.drawString("???",170,scrH-50,Graphics.TOP|Graphics.LEFT);
				g.drawString("???",70,scrH-28,Graphics.TOP|Graphics.LEFT);
				g.drawString("???",170,scrH-28,Graphics.TOP|Graphics.LEFT);
			}
			flushGraphics();
			k=waitKeyRelease(FIRE_PRESSED|UP_PRESSED|DOWN_PRESSED);
			if((k&UP_PRESSED)!=0){
				if(sel==0) sel=theGame.nMonsterCount-1;
				else sel-=1;
			}else if((k&DOWN_PRESSED)!=0){
				if(sel==theGame.nMonsterCount-1) sel=0;
				else sel+=1;
			}else if((k&FIRE_PRESSED)!=0){
				break;
			}
		}
	}
	private void shop(){
		drawText("彜揦","壗傪攦偄偨偄偱偡偐?");
		int sel=0,k;
		while(true){
			dlgbox.setPosition(0,scrH-56);
			dlgbox.paint(g);
			g.setColor(64,12,128);
			g.drawString("僷儞  30G",40,scrH-45,Graphics.TOP|Graphics.LEFT);
			g.drawString("栻  100G",scrW/2+40,scrH-45,Graphics.TOP|Graphics.LEFT);
			g.drawString("悈  200G",40,scrH-25,Graphics.TOP|Graphics.LEFT);
			g.drawString("庢徚偟",scrW/2+40,scrH-25,Graphics.TOP|Graphics.LEFT);
			g.setColor(0xff00000);
			g.drawString("*",(sel+1)/2==sel/2?20:scrW/2+20,sel<2?scrH-45:scrH-25,Graphics.TOP|Graphics.LEFT);
			flushGraphics();
			k=waitKeyRelease(LEFT_PRESSED|RIGHT_PRESSED|FIRE_PRESSED);
			if((k&LEFT_PRESSED)!=0){
				if(sel!=0) sel-=1;
			}else if((k&RIGHT_PRESSED)!=0){
				if(sel!=3) sel+=1;
			}else if((k&FIRE_PRESSED)!=0){
				if(sel==0&&theGame.money>=30){
					drawText("Hero","僷儞傪攦偄傑偟傚偆.");
					theGame.item[0]+=1;
					theGame.money-=30;
				}else if(sel==1&&theGame.money>=100){
					drawText("Hero","栻傪攦偄偨偄.");
					theGame.item[1]+=1;
					theGame.money-=100;
				}else if(sel==2&&theGame.money>=200){
					drawText("Hero","偙傟偑傎偟偄偺偩.");
					theGame.item[2]+=1;
					theGame.money-=200;
				}else if(sel==3){
					drawText("Hero","攦傢側偄偵偟傛偆.");
					return;
				}else{
					drawText("Hero","偦傟傪攦偊側偄.");
				}
				return;
			}
		}
	}
	private void drawMenu(){
		int sel=0,k;
		for(int i=0;i<=scrW/2;i+=12){
//			map.paint(g,0,0);
			g.setClip(scrW/2-i,0,i,scrH);
			menuBack.setPosition(scrW/2-i,0);
			menuBack.paint(g);
			g.setClip(scrW/2,0,i,scrH);
			menuBack.setPosition(i-scrW/2,0);
			menuBack.paint(g);
			flushGraphics(scrW/2-i,0,i*2,scrH);
//			pause(2);
		}
		g.setClip(0,0,scrW,scrH);
		menuBack.setPosition(0,0);
		while(true){
			menuBack.paint(g);
			g.setColor(0);
			g.drawString("PAUSE",scrW/2-30,20,Graphics.TOP|Graphics.LEFT);
			g.setColor(0xff0f0f);
			g.fillRect(15,42,scrW-30,2);
			g.setColor(64,12,128);
			g.drawString("僎乕儉偵栠偡",scrW/2-40,70,Graphics.TOP|Graphics.LEFT);
			g.drawString("恑搙曐懚",scrW/2-40,90,Graphics.TOP|Graphics.LEFT);
			g.drawString("壒惡"+(theGame.sound?"暵傔傞":"奐偔"),scrW/2-40,110,Graphics.TOP|Graphics.LEFT);
			g.drawString("Menu偵栠偡",scrW/2-40,130,Graphics.TOP|Graphics.LEFT);
			g.setColor(0xff0000);
			g.drawString("*",scrW/2-60,70+sel*20,Graphics.TOP|Graphics.LEFT);
			flushGraphics();
			k=waitKeyRelease(UP_PRESSED|DOWN_PRESSED|FIRE_PRESSED);
			if((k&UP_PRESSED)!=0){
				if(sel!=0) sel-=1;
			}else if((k&DOWN_PRESSED)!=0){
				if(sel!=3) sel+=1;
			}else if((k&FIRE_PRESSED)!=0){
				switch(sel){
				case 0:
					return;
				case 1:
					if(theGame.saveData())
					drawText(null,"曐懚廔傢傝!");
					else drawText(null,"Failed!");
					return;
				case 2:
					theGame.sound=!theGame.sound;
					sp.setEnable(theGame.sound);
					break;
				case 3:
					doChoose(999);
					return;
				}
			}
		}
	}
}