gamecanvas.java

横屏移动地图移动和人物移动横屏幕的移动初级作品

/*画布类，画logo，游戏画面*/

package Speeds;

import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Font;
import javax.microedition.lcdui.Image;
import java.util.Random;

import com.nokia.mid.ui.FullCanvas;
import com.nokia.mid.ui.DirectUtils;

public class GameCanvas extends FullCanvas
{
	protected Man blackMan=null;
	protected GameData gda=null;

	protected int showCon=0;
	private Image logo=null;
	private Image bigPic=null;
	private Image midPic=null;
	private Image glogo=null;
	private Image grid=null;
	private Image status=null;
	private Image menuItem=null;

	private int srcW=0;
	private int srcH=0;
	
	private int stepW=8;
	private boolean loadImg=false;

	private Display gDisp=null;

	protected short bakBeginX=0;				//背景开始绘制的x坐标(用于背景滚屏移动)
	protected short streetBeginX=0;				//道路开始绘制的x坐标(用于道路滚屏移动)
	protected short midBeginX=0;				//中层景物的参照x坐标
	private int bombX,bombY;
	private short bloodY=0;						//绘制补给品的y坐标

	private short screenMovX=80;				//滚屏位置
	protected short mapDataBeginX=0;			//地图数据起始位置,按每隔8个象素一格
	protected Graphics myGraphic=null;		//菜单图对象
	
	protected boolean keyup=false,keyup1=false;
	protected boolean keydown=false,keydown1=false;
	protected boolean keyleft=false,keyleft1=false;
	protected boolean keyright=false,keyright1=false;
	protected boolean keyfire=false,keyfire1=false;
	protected boolean manWait=false;
	protected boolean keyTouched=false;
	protected boolean keyRightFunc=false;			//右功能键
	protected int bi;
	protected int bx;
	//protected int curPosX=0;
	private Random ra;
	protected boolean isGameOver=false;
	protected boolean isRunning=false;
	protected boolean passInitOk=false;				//画一些过场
	protected int passCount=0;
	protected int passStep=0;

	//记录图素在位置,大小及属于那个大图,编号是存储在地图数据中的图素编号,最后一位用来区分所属大图,0为小图,1为大图
	protected short[][] picsPos={{0,191,30,16,16},			//南瓜炸弹
								{1,191,45,16,16},			//榴莲炸弹
								{2,191,14,16,16},			//苹果炸弹
								{3,191,-2,16,16},			//西瓜炸弹
								{4,160,3,24,32},			//右向敌人
								{5,2,40,24,32},				//左向敌人
								{6,239,66,8,10},			//石块
								{7,207,66,8,10},			//垃圾桶

								{8,0,0,32,90},				//丛林背景
								{9,32,0,32,90},				//食人部落背景
								{10,64,0,32,90},			//雪地背景
								{11,96,0,32,90},			//日落大道背景
								{12,0,90,32,47},			//丛林道路
								{13,32,90,32,47},			//食人部落道路
								{14,64,90,32,47},			//雪地道路
								{15,96,90,32,47},			//日落大道道路

								{16,43,128,22,18},			//小草从深色
								{17,128,100,48,20},			//小草丛浅色
								{18,43,147,64,32},			//大草丛
								{19,128,1,50,55},			//岩石
								{20,0,156,34,23},			//长草丛浅色
								{21,108,156,34,22},			//长草丛深色
								{22,65,128,22,18},			//短草丛
								{23,0,128,44,27},			//栅栏
								{24,128,56,49,45},			//斜草丛蓝白色
								{25,145,129,40,29},			//斜草丛深色右
								{26,108,129,40,29},			//斜草丛深色左

								{27,191,64,8,16},			//血包
								{28,224,61,16,16}			//机关爆炸
							};

	protected short[][] mansPos={{41,3,16,32},			//右走1 0
							{25,3,16,32},				//右走2 1
							{57,3,17,32},				//右走3 2
							{1,3,23,32},				//右开枪 3
							{74,11,22,24},				//右下蹲 4
							{98,11,30,24},				//右拆弹 5
							{128,22,32,16},				//右死亡 6
							{129,40,16,32},				//左走1 7
							{145,40,16,32},				//左走2 8
							{112,40,17,32},				//左走3 9
							{161,40,23,32},				//左开枪 10
							{90,48,22,24},				//左下蹲 11
							{58,48,32,24},				//左拆弹 12
							{26,55,32,16},				//左死亡 13
							{184,3,4,2},				//子弹右
							{184,6,4,2}};				//子弹左
							

	protected String[] menuStr={"新游戏","继续上次游戏","游戏帮助","音量控制","退出游戏"};
	protected boolean showMenuFlag=false;
	protected int menuItemId=0;
	protected int menuClass=0;
	private String helpStr="注意：请打开手机声音，仔细分辨炸弹鸣音，以便拆除炸弹。\n操作控制：方向键行走，下键下蹲。OK键开枪。手机右功能键开/关菜单。下蹲后再按下键，则根据不同状态，主角做出不同动作。炸弹分四类：A、B、X、T型。B、A型属可解除的节律弹，以某种节拍在危险（红色）和安全（绿色）间闪动，当处于安全状态（绿色）时，对它进行解除（下蹲时按下键），可使其失效。T型弹是定时炸弹，一旦启动就不可解除。在空地前蹲下，按下键即可安放它。再按下键即启动它。X型属不可拆除的集束炸弹，只能其他炸弹引爆它。";
	protected int soundMaxVar=10;
	protected int soundVar=0;
	protected boolean showHelp=false;
	protected int beginCol=0;
	private short strPointer[]=new short[10];
	protected short page=0;
	protected int colW=0;
	
	protected boolean showTitle=false;		//是否显示标题
	private String levelTitle[]={"第一章","第二章","第三章","第四章","尾声"};
	private String levelString[]={"雨林烟起","食人部落","落基山的雪","日落大道"," "};

	public GameCanvas(Display disp) {					//构造器
		srcW=getWidth();
		srcH=getHeight();
		gDisp=disp;
		blackMan=new Man(160,this);
		gda=new GameData(this,blackMan);
		ra=new Random();
		int i;

		//gda.manBeginY=srcH-picsPos[gda.mapGlobe[2]][4]+10;
		
		//curPosX=blackMan.mapPosX;
		
		try
		{
			logo=Image.createImage("/icons/c_logo.png");
			grid=DirectUtils.createImage(100,100,0x925099FF);
			menuItem=DirectUtils.createImage(100,20,0x5500FFAA);
			glogo=Image.createImage("/icons/g_logo.png");
			status=Image.createImage("/icons/status.png");
		}
		catch (java.io.IOException e)
		{
			System.out.println("open image file error");
		}
		try
		{
			soundVar=PlaySound.getmygain();
		}
		catch (IllegalStateException e)
		{
			soundVar=5;
		}
	}

	public void start() {
		gDisp.setCurrent(this);
	}

	public void paint(Graphics g) {
		int imgX=0;
		int imgY=0;
		int i,j;
		int imgNum=0;
		
		if(showCon==0) {		//画公司logo
			if(passInitOk) {
				g.setColor(0x00000000);
				g.fillRect(0,0,srcW,srcH);
				g.drawImage(logo,0-(srcW-passCount*8),0,Graphics.TOP|Graphics.LEFT);
			} else {
				g.drawImage(logo,0,0,Graphics.TOP|Graphics.LEFT);
			}
		}

		if(showCon==1) {		//画游戏logo
			if(!showMenuFlag) {
				if(passInitOk) {
					g.setColor(0x00000000);
					g.fillRect(0,0,srcW,srcH);
					g.drawImage(glogo,0-(srcW-passCount*8),0,Graphics.TOP|Graphics.LEFT);
				} else {
					g.drawImage(glogo,0,0,Graphics.TOP|Graphics.LEFT);
				}
			}
			//showMenuFlag=true;
			g.setColor(0x00000000);
			if(showMenuFlag) {
				g.fillRect(0,0,srcW,srcH);
			}
			drawMenu(g);
		}

		if(showCon==2) {		//游戏内容

			if(showTitle) {
				g.setClip(0,0,srcW,srcH);
				g.setColor(0x00000000);
				g.fillRect(0,0,srcW,srcH);
				g.setColor(0x00FFFFFF);
				g.setFont(Font.getFont(Font.FACE_MONOSPACE,Font.STYLE_PLAIN,Font.SIZE_SMALL));
				g.drawString(levelTitle[gda.gameLevel-1],10,20,Graphics.TOP|Graphics.LEFT);
				g.drawString(levelString[gda.gameLevel-1],10,40,Graphics.TOP|Graphics.LEFT);
				//showTitle=false;
			} else {

			if(!loadImg) {
				logo=null;
				glogo=null;
				try
				{
					bigPic=Image.createImage("/icons/big.png");
					midPic=Image.createImage("/icons/mans.png");
					//status=Image.createImage("/icons/status.gif");
				}
				catch (java.io.IOException e)
				{
					System.out.println("open image file error");
				}
				loadImg=true;
				//System.out.println("load pic ok");
			}

			//画游戏背景,画三次以实现移动效果
			short bakImgNum=(short)gda.mapGlobe[1];
			
			for(i=-1;i<=srcW/picsPos[bakImgNum][3];i++) {
				g.setClip(0+i*picsPos[bakImgNum][3]-bakBeginX,0,picsPos[bakImgNum][3],picsPos[bakImgNum][4]);
				g.drawImage(bigPic,0-picsPos[bakImgNum][1]+i*picsPos[bakImgNum][3]-bakBeginX,0-picsPos[bakImgNum][2],
							Graphics.TOP|Graphics.LEFT);
			}
			
			

			//画其他存储在地图数据中的图素,前方要多画半屏
			bi=blackMan.mapPosX/stepW;			
			bx=blackMan.mapPosX%stepW;
			
			//从mapPosX是屏幕定点所处的位置，从mapPosX前的-20*8开始绘制屏幕
			for(i=-20;i<16;i++) {			//下层的中间景物
				if(bi+i>=0 && bi+i<gda.colNu) {
					//System.out.println("col num:"+(i));
					if(gda.mapData[bi+i][0]!=(byte)0xFF && gda.mapData[bi+i][2]==(byte)0x00) {
						imgNum=(int)gda.mapData[bi+i][0];
						//System.out.println("col num:"+(i));
						imgY=(int)gda.mapData[bi+i][1]*stepW;
						g.setClip(i*stepW-bx,imgY,picsPos[imgNum][3],picsPos[imgNum][4]);
						g.drawImage(bigPic,i*stepW-picsPos[imgNum][1]-bx,imgY-picsPos[imgNum][2],
									Graphics.TOP|Graphics.LEFT);
					}
				}
			}

			//画路面,也要有移动的效果
			short roadImgNum=(short)gda.mapGlobe[2];
			for(i=-1;i<=srcW/picsPos[roadImgNum][3];i++) {
				g.setClip(0+i*picsPos[roadImgNum][3]-streetBeginX,srcH-picsPos[roadImgNum][4],picsPos[roadImgNum][3],picsPos[roadImgNum][4]);
				g.drawImage(bigPic,0-picsPos[roadImgNum][1]+i*picsPos[roadImgNum][3]-streetBeginX,0-picsPos[roadImgNum][2]+srcH-picsPos[roadImgNum][4],
							Graphics.TOP|Graphics.LEFT);
			}

			
			//System.out.println("bakimgnum:"+bakImgNum);
			for(i=-20;i<16;i++) {			//上层的中间景物
				if(bi+i>=0 && bi+i<gda.colNu) {
					//System.out.println("col num:"+(bi+i));
					if(gda.mapData[bi+i][0]!=(byte)0xFF && gda.mapData[bi+i][2]!=(byte)0x00) {
						imgNum=(int)gda.mapData[bi+i][0];
						//System.out.println("col num:"+(i));
						imgY=(int)gda.mapData[bi+i][1]*stepW;
						g.setClip(i*stepW-bx,imgY,picsPos[imgNum][3],picsPos[imgNum][4]);
						g.drawImage(bigPic,i*stepW-picsPos[imgNum][1]-bx,imgY-picsPos[imgNum][2],
									Graphics.TOP|Graphics.LEFT);
					}
					
					/////////////////画补给品
					if(gda.mapData[bi+i][7]!=(byte)0xFF) {
						imgNum=gda.mapData[bi+i][7];
						//System.out.println("count:"+bi+" bx:"+bx);
						imgY=gda.manBeginY-mansPos[0][0]+5;
						g.setClip(i*stepW-bx,imgY,picsPos[imgNum][3],picsPos[imgNum][4]);
						g.drawImage(midPic,i*stepW-picsPos[imgNum][1]-bx,imgY-picsPos[imgNum][2],
									Graphics.TOP|Graphics.LEFT);
					}
					//////////////////////////////////画掉落的机关
					if(gda.mapData[bi+i][3]!=(byte)0xFF) {
						imgY=gda.mapData[bi+i][4];
						boolean sb=gda.checkStone(bi+i,imgY);
						if(sb) {
							imgNum=28;
						} else {
							imgNum=gda.mapData[bi+i][3];
						}
						
						gda.stoneY=imgY;
						g.setClip(i*stepW-bx,gda.stoneY,picsPos[imgNum][3],picsPos[imgNum][4]);
						g.drawImage(midPic,i*stepW-picsPos[imgNum][1]-bx,gda.stoneY-picsPos[imgNum][2],
									Graphics.TOP|Graphics.LEFT);
						if(sb) {
							gda.mapData[bi+i][4]=(byte)0xFF;
						}
					}

				}

			}

			for(i=-20;i<16;i++) {		//画敌人
				if(bi+i>=0 && bi+i<gda.colNu) {
					if(gda.mapMan[bi+i][0]!=(byte)0xFF) {
						imgNum=4+(int)gda.mapMan[bi+i][1];
						imgY=(int)gda.mapMan[bi+i][0];
						if(gda.mapMan[bi+i][2]==(byte)0x00 && gda.enemyFlashCount%2==0) {
							if(gda.enemyFlashCount==6) {
								gda.mapMan[bi+i][0]=(byte)0xFF;
								gda.mapMan[bi+i][1]=(byte)0xFF;
								gda.mapMan[bi+i][2]=(byte)0xFF;
							}
						} else {
							g.setClip(i*stepW-bx,imgY,picsPos[imgNum][3],picsPos[imgNum][4]);
							g.drawImage(midPic,i*stepW-picsPos[imgNum][1]-bx,imgY-picsPos[imgNum][2],
										Graphics.TOP|Graphics.LEFT);
							if(gda.enemyFire && imgY>=30) {
								//System.out.println("enemy fire!!");
								imgX=i*stepW+bx;
								Bullet tbt=null;
								////////////////////////////////让敌人转身面对主角
								if((blackMan.posX+blackMan.mapPosX)/stepW>bi+i) {
									gda.mapMan[bi+i][1]=(byte)0x00;
								} else {
									gda.mapMan[bi+i][1]=(byte)0x01;
								}

								if(imgNum==4) {
									tbt=new Bullet(imgX+12,imgY+3);
									tbt.direction=true;
								} else {
									tbt=new Bullet(imgX,imgY+3);
									tbt.direction=false;
								}
							
								tbt.age=16;
								tbt.owner=1;
							
								gda.register(tbt);
							
							}
						}
					}
				}
			}

			gda.enemyFire=false;

			/////////画飞行的子弹
			for(i=0;i<20;i++) {
				if(gda.blts[i].age>0) {
					if(gda.blts[i].direction) {				//向右开枪
						//g.setColor(0x00ff0000);
						g.setClip(gda.blts[i].posX,gda.blts[i].posY,4,2);
						g.drawImage(midPic,gda.blts[i].posX-mansPos[14][0],gda.blts[i].posY-mansPos[14][1],Graphics.TOP|Graphics.LEFT);
					} else {
						g.setClip(gda.blts[i].posX,gda.blts[i].posY,4,2);
						g.drawImage(midPic,gda.blts[i].posX-mansPos[15][0],gda.blts[i].posY-mansPos[15][1],Graphics.TOP|Graphics.LEFT);
						//g.setColor(0x0000ff00);
					}
				}
			}

			//
			imgNum=blackMan.status;
			if(blackMan.visible) {
				if(imgNum==12) {
					g.setClip(blackMan.posX-6,gda.manBeginY-mansPos[imgNum][3],mansPos[imgNum][2],mansPos[imgNum][3]);
					g.drawImage(midPic,blackMan.posX-mansPos[imgNum][0]-6,gda.manBeginY-mansPos[imgNum][3]-mansPos[imgNum][1],
									Graphics.TOP|Graphics.LEFT);
				}
				else if(imgNum==6 || imgNum==13) {
					g.setClip(blackMan.posX,gda.manBeginY-mansPos[imgNum][3]+5,mansPos[imgNum][2],mansPos[imgNum][3]);
					g.drawImage(midPic,blackMan.posX-mansPos[imgNum][0],gda.manBeginY-mansPos[imgNum][3]-mansPos[imgNum][1]+5,
									Graphics.TOP|Graphics.LEFT);
				}
				else if(imgNum==10) {
					g.setClip(blackMan.posX-stepW,gda.manBeginY-mansPos[imgNum][3],mansPos[imgNum][2],mansPos[imgNum][3]);
					g.drawImage(midPic,blackMan.posX-mansPos[imgNum][0]-stepW,gda.manBeginY-mansPos[imgNum][3]-mansPos[imgNum][1],
									Graphics.TOP|Graphics.LEFT);
				} else {
					g.setClip(blackMan.posX,gda.manBeginY-mansPos[imgNum][3],mansPos[imgNum][2],mansPos[imgNum][3]);
					g.drawImage(midPic,blackMan.posX-mansPos[imgNum][0],gda.manBeginY-mansPos[imgNum][3]-mansPos[imgNum][1],
									Graphics.TOP|Graphics.LEFT);
				}
			}
			if(imgNum==5) {				//主角拆完弹把手缩回
				blackMan.status=4;
			}
			if(imgNum==12) {
				blackMan.status=11;
			}


			for(i=-20;i<26;i++) {			//上层的景物
				if(bi+i>=0 && bi+i<gda.colNu) {
					
					/////////////////画炸弹
					if(gda.mapData[bi+i][5]!=(byte)0xFF) {
						if((gda.bombing && bi+i==gda.bombingNu) || gda.bombStatus[bi+i]==101) {
							//PlaySound.bomb();