hero.java

本j2me坦克游戏是在Nokia平台下开发的

/*
 * @(#)Hero.java	0.20 02/11/07
 * Copyright (c) 2002 InterScape Creations. All Rights Reserved.
 */

import javax.microedition.lcdui.*;

class Hero implements Runnable {
    private static Graphics G = null;

    int posX, posY;

    int status;		//1--normal 2--start 7--explode
    int direction;
    int speed;

	boolean shootFlag = false;
	int bulletNo;

	int count;

	Image heroImage;
	Image drawHero;

	Image heroLeft;
	Image heroRight;
	Image heroUp;
	Image heroDown;

	Image heroLeft1;
	Image heroRight1;
	Image heroUp1;
	Image heroDown1;

    Image heroLeft2;
    Image heroRight2;
    Image heroUp2;
    Image heroDown2;


	Image explodeImage;

    int frameWidth, frameHeight;
    int bulletLevel;   //symbol the hero's bullet speed
    boolean capped;
    boolean grassPaint = false;
    boolean overstart;

    Hero() {
      // posX = 70;//sony 108;
      //  posY = 190;//sony 148;

        status = 0;
        count = 40;
        bulletLevel = 0;
        direction = 3; // 1--left 2--right 3--up 4--down

		// Load the object images
        try {
            heroImage = Image.createImage("/tank_sh.png");
           	frameWidth = heroImage.getWidth()/4;
           	frameHeight = heroImage.getHeight()/2;

            heroLeft = Image.createImage(frameWidth, frameHeight);
            G = heroLeft.getGraphics();
            G.drawImage(heroImage, 0, 0, 20);
            heroRight = Image.createImage(frameWidth, frameHeight);
            G = heroRight.getGraphics();
            G.drawImage(heroImage, -frameWidth, 0, 20);
            heroUp = Image.createImage(frameWidth, frameHeight);
            G = heroUp.getGraphics();
            G.drawImage(heroImage, -frameWidth*2, 0, 20);
            heroDown = Image.createImage(frameWidth, frameHeight);
            G = heroDown.getGraphics();
            G.drawImage(heroImage, -frameWidth*3, 0, 20);

            heroLeft1 = Image.createImage(frameWidth, frameHeight);
            G = heroLeft1.getGraphics();
            G.drawImage(heroImage, 0, -frameHeight, 20);
            heroRight1 = Image.createImage(frameWidth, frameHeight);
            G = heroRight1.getGraphics();
            G.drawImage(heroImage, -frameWidth, -frameHeight, 20);
            heroUp1 = Image.createImage(frameWidth, frameHeight);
            G = heroUp1.getGraphics();
            G.drawImage(heroImage, -frameWidth*2, -frameHeight, 20);
            heroDown1 = Image.createImage(frameWidth, frameHeight);
            G = heroDown1.getGraphics();
            G.drawImage(heroImage, -frameWidth*3, -frameHeight, 20);

            heroLeft2 = Image.createImage(frameWidth, frameHeight);
            G = heroLeft2.getGraphics();
            G.drawImage(heroImage, 0, 0, 20);
            heroRight2 = Image.createImage(frameWidth, frameHeight);
            G = heroRight2.getGraphics();
            G.drawImage(heroImage, -frameWidth, 0, 20);
            heroUp2 = Image.createImage(frameWidth, frameHeight);
            G = heroUp2.getGraphics();
            G.drawImage(heroImage, -frameWidth*2, 0, 20);
            heroDown2 = Image.createImage(frameWidth, frameHeight);
            G = heroDown2.getGraphics();
            G.drawImage(heroImage, -frameWidth*3, 0, 20);


            G = null;
	       	drawHero = heroUp;

			explodeImage = Image.createImage("/explode.png");
        }
        catch(Exception exception) {
            System.out.println(exception);
        }
    }

	public void run() {
	}

    synchronized void paint(Graphics g) {
    	int fillposX = posX;
    	int fillposY = posY;
    	int fillwidth = frameWidth;
    	int fillheigh = frameHeight;
    	speed = SuperTank.canvas.tileW;

		g.setColor(0x0);

		grassPaint = false;
        if ( ((direction & 0x10) > 0) && (status < 7) ){

			switch(direction & 0x0f) {
		        case 1:		//left
		        	drawHero = heroLeft;

			        if ((posX > SuperTank.canvas.mapOffsetX) && !ismapCollide()){
				        posX -= speed;

			        	fillposX = posX + frameWidth;
			        	fillposY = posY;
			        	fillwidth = speed;
			        	fillheigh = frameHeight;
		        	}

		            break;

		        case 2:		//right
		        	drawHero = heroRight;

			        if ((posX < (SuperTank.canvas.mapOffsetX+SuperTank.canvas.mapWidth - frameWidth)) && !ismapCollide()){
				        posX += speed;

			        	fillposX = posX - speed;
			        	fillposY = posY;
			        	fillwidth = speed;
			        	fillheigh = frameHeight;
			    	}

		            break;

		        case 3:		//up
		        	drawHero = heroUp;

			        if ((posY > SuperTank.canvas.mapOffsetY) && !ismapCollide()){
				        posY -= speed;

			        	fillposX = posX;
			        	fillposY = posY + frameHeight;
			        	fillwidth = frameWidth;
			        	fillheigh = speed;
		        	}

	    	        break;

		        case 4:		//down
		        	drawHero = heroDown;

			        if ((posY<(SuperTank.canvas.mapOffsetY+SuperTank.canvas.mapHeight - frameHeight)) && !ismapCollide()){
				        posY += speed;

			        	fillposX = posX;
			        	fillposY = posY - speed;
			        	fillwidth = frameWidth;
			        	fillheigh = speed;
					}

		        default:
		            break;
			}
			g.fillRect(fillposX, fillposY, fillwidth, fillheigh);
		}

		if ( status == 0 ){
			if ( count > 0 ){
				if ( (count & 1) > 0 ){
//                  drawHero = heroImage1;
					switch(direction & 0x0f) {
				        case 1:		//left
				        	drawHero = heroLeft1;
				            break;

				        case 2:		//right
				        	drawHero = heroRight1;
				            break;

				        case 3:		//up
				        	drawHero = heroUp1;
				            break;

				        case 4:		//down
				        	drawHero = heroDown1;
				        default:
				            break;
					}
				} else {
//                  drawHero = heroImage2;
					switch(direction & 0x0f) {
				        case 1:		//left
				        	drawHero = heroLeft;
			    	        break;

				        case 2:		//right
				        	drawHero = heroRight;
			        	    break;

				        case 3:		//up
				        	drawHero = heroUp;
			            	break;

				        case 4:		//down
				        	drawHero = heroDown;
				        default:
			            	break;
					}
				}
				count --;
			} else {
				// Load the object images
		        try {
		            heroImage = Image.createImage("/tank.png");

		            heroLeft = Image.createImage(frameWidth, frameHeight);
		            G = heroLeft.getGraphics();
		            G.drawImage(heroImage, 0, 0, 20);
		            heroRight = Image.createImage(frameWidth, frameHeight);
		            G = heroRight.getGraphics();
		            G.drawImage(heroImage, -frameWidth, 0, 20);
		            heroUp = Image.createImage(frameWidth, frameHeight);
		            G = heroUp.getGraphics();
		            G.drawImage(heroImage, -frameWidth*2, 0, 20);
		            heroDown = Image.createImage(frameWidth, frameHeight);
		            G = heroDown.getGraphics();
		            G.drawImage(heroImage, -frameWidth*3, 0, 20);
		            G = null;
		        }
		        catch(Exception exception) {
		            System.out.println(exception);
		        }
				status = 1;
/*            }
//            DirectGraphics dg = DirectUtils.getDirectGraphics(g);
            switch(direction & 0x0f) {
              case 1:		//left
//                dg.drawImage(drawHero, posX, posY, g.TOP|g.LEFT, DirectGraphics.ROTATE_90);
                g.drawImage(heroLeft, posX, posY, g.TOP|g.LEFT);
                  break;

              case 2:		//right
//                dg.drawImage(drawHero, posX, posY, g.TOP|g.LEFT, DirectGraphics.ROTATE_270);
                g.drawImage(heroRight, posX, posY, g.TOP|g.LEFT);
                  break;

              case 3:		//up
//                g.drawImage(drawHero, posX, posY, g.TOP|g.LEFT);
                g.drawImage(heroUp, posX, posY, g.TOP|g.LEFT);
                  break;

              case 4:		//down
//                dg.drawImage(drawHero, posX, posY, g.TOP|g.LEFT, DirectGraphics.ROTATE_180);
                g.drawImage(heroDown, posX, posY, g.TOP|g.LEFT);
              default:
                  break;
          }*/

                    switch (direction & 0x0f) {
                        case 1: //left
                            drawHero = heroLeft;
                            break;

                        case 2: //right
                            drawHero = heroRight;
                            break;

                        case 3: //up
                            drawHero = heroUp;
                            break;

                        case 4: //down
                            drawHero = heroDown;
                        default:
                            break;
                    }
                }


			g.drawImage(drawHero, posX, posY, g.TOP|g.LEFT);

		} else if ( status == 7 ) {
			g.drawImage(explodeImage, posX, posY, g.TOP|g.LEFT);

			if (count > 0)
				count--;
			else{
				g.fillRect(posX, posY, explodeImage.getWidth(), explodeImage.getHeight());
				if ( SuperTank.canvas.life > 1 ){	//restart a hero
					SuperTank.canvas.life --;

			        try {
			            heroImage = Image.createImage("/tank_sh.png");

			            heroLeft = Image.createImage(frameWidth, frameHeight);
			            G = heroLeft.getGraphics();
			            G.drawImage(heroImage, 0, 0, 20);
			            heroRight = Image.createImage(frameWidth, frameHeight);
			            G = heroRight.getGraphics();
			            G.drawImage(heroImage, -frameWidth, 0, 20);
			            heroUp = Image.createImage(frameWidth, frameHeight);
			            G = heroUp.getGraphics();
			            G.drawImage(heroImage, -frameWidth*2, 0, 20);
			            heroDown = Image.createImage(frameWidth, frameHeight);
			            G = heroDown.getGraphics();
			            G.drawImage(heroImage, -frameWidth*3, 0, 20);

			            heroLeft1 = Image.createImage(frameWidth, frameHeight);
			            G = heroLeft1.getGraphics();
			            G.drawImage(heroImage, 0, -frameHeight, 20);
			            heroRight1 = Image.createImage(frameWidth, frameHeight);
			            G = heroRight1.getGraphics();
			            G.drawImage(heroImage, -frameWidth, -frameHeight, 20);
			            heroUp1 = Image.createImage(frameWidth, frameHeight);
			            G = heroUp1.getGraphics();
			            G.drawImage(heroImage, -frameWidth*2, -frameHeight, 20);
			            heroDown1 = Image.createImage(frameWidth, frameHeight);
			            G = heroDown1.getGraphics();
			            G.drawImage(heroImage, -frameWidth*3, -frameHeight, 20);
			            G = null;
			        }
			        catch(Exception exception) {