bullet.java

本j2me坦克游戏是在Nokia平台下开发的

                                                SuperTank.canvas.mapOffsetY, tileW, tileW);

                                            SuperTank.canvas.mapInfo[mapBlock] = 0;

                                        }
                                    }
                                }
                                else if (SuperTank.canvas.mapInfo[mapBlock] >=
                                         4) {
                                    SuperTank.canvas.gameLose = true;
                                    SuperTank.canvas.overtimer.timeCounter = 0;
                                    g.setColor(0x0);
                                    homeover = true;
                                    g.fillRect(SuperTank.canvas.mapOffsetX +
                                               SuperTank.canvas.mapWidth / 2 - tileW*2,
                                               SuperTank.canvas.mapOffsetY +
                                               SuperTank.canvas.mapHeight - tileW*4, tileW*4,
                                               tileW*4);
                                }
                                mapBlock++;

                                if ( (mapBlock %
                                      (SuperTank.canvas.mapWidth / tileW)) == 0)
                                    break;
                            }
                            break;

                        case 4: //down
                            for (i = 0; i < 4; i++) {

                                if ( (SuperTank.canvas.mapInfo[mapBlock] > 0) &&
                                    (SuperTank.canvas.mapInfo[mapBlock] < 4)) {
                                    if (SuperTank.canvas.mapInfo[mapBlock] == 2 &&
                                        starNum != 3) {
                                        ironPaint = true;
                                     //   System.out.println(ironPaint);
                                    }
                                    if (SuperTank.canvas.mapInfo[mapBlock] != 2) {
                                        blockY = mapBlock /
                                            (SuperTank.canvas.mapWidth / tileW);
                                        blockX = mapBlock -
                                            blockY *
                                            (SuperTank.canvas.mapWidth / tileW);
                                        g.setColor(0x0);
                                        g.fillRect(blockX * tileW +
                                            SuperTank.canvas.mapOffsetX,
                                            blockY * tileW +
                                            SuperTank.canvas.mapOffsetY, tileW, tileW);

                                        SuperTank.canvas.mapInfo[mapBlock] = 0;
                                    }
                                    else {
                                        if (starNum == 3) {
                                            blockY = mapBlock /
                                                (SuperTank.canvas.mapWidth / tileW);
                                            blockX = mapBlock -
                                                blockY *
                                                (SuperTank.canvas.mapWidth / tileW);
                                            g.setColor(0x0);
                                            g.fillRect(blockX * tileW +
                                                SuperTank.canvas.mapOffsetX,
                                                blockY * tileW +
                                                SuperTank.canvas.mapOffsetY, tileW, tileW);

                                            SuperTank.canvas.mapInfo[mapBlock] = 0;

                                        }
                                    }
                                }
                                else if (SuperTank.canvas.mapInfo[mapBlock] >=
                                         4) {
                                    SuperTank.canvas.gameLose = true;
                                    SuperTank.canvas.overtimer.timeCounter = 0;
                                    g.setColor(0x0);
                                    homeover = true;
                                    g.fillRect(SuperTank.canvas.mapOffsetX +
                                               SuperTank.canvas.mapWidth / 2 - tileW*2,
                                               SuperTank.canvas.mapOffsetY +
                                               SuperTank.canvas.mapHeight - tileW*4, tileW*4,
                                               tileW*4);
                                }
                                mapBlock++;
                                if ( (mapBlock %
                                      (SuperTank.canvas.mapWidth / tileW)) == 0)
                                    break;
                            }

                        default:
                            break;
                    }
                }

                bombFlag = true;
                bombCount = 4;
                isbomb = true;
            }
        }


		//explosion
        if (bombFlag) {

        	g.setColor(0);
            g.fillRect(posX, posY, frameWidth + speed, frameHeight);

            g.drawImage(bombImage, BposX, BposY, g.TOP | g.LEFT);

            if (bombCount > 0) {
                bombCount--;
            }
            else {
            	g.setColor(0);
                g.fillRect(BposX, BposY, bombImage.getWidth(),
                           bombImage.getHeight());
                bombFlag = false;
                alive = false;
                if(homeover){
                    SuperTank.canvas.hero.paint(g);
                    homeover = false;
                }
			}

            //repaint the iron
            if (ironPaint) {
                SuperTank.canvas.reDraw(2,g);
            }
            if(grassPaint){
                SuperTank.canvas.grassPaint = true;
             //   SuperTank.canvas.reDraw(3,g);
            }
            return;
        }

        switch(direction) {
            case 1:		//left
                posX -= speed;

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

                break;

            case 2:		//right
                posX += speed;

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

                break;

            case 3:		//up
                posY -= speed;

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

            case 4:		//down
                posY += speed;

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

            default:
                break;
        }

        g.fillRect(fillposX, fillposY, fillwidth, fillheigh);

//        DirectGraphics dg = DirectUtils.getDirectGraphics(g);
        switch(direction & 0x0f) {
            case 1:		//left
//              dg.drawImage(drawBullet, posX, posY, g.TOP|g.LEFT, DirectGraphics.ROTATE_90);
              g.drawImage(bulletLeft, posX, posY, g.TOP|g.LEFT);
                break;

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

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

            case 4:		//down
//              dg.drawImage(drawBullet, posX, posY, g.TOP|g.LEFT, DirectGraphics.ROTATE_180);
              g.drawImage(bulletDown, posX, posY, g.TOP|g.LEFT);
            default:
                break;
        }
        if (grassPaint) {
            SuperTank.canvas.grassPaint = true;
         //   SuperTank.canvas.reDraw(3, g);
        }

   }

   boolean ismapCollide() {
       boolean collFlag = false;
       boolean isContinue1 = true;
	   boolean isContinue2 = true;
       int collX, collY;
       int i;
       int tileW = SuperTank.canvas.tileW;

       collX = posX - SuperTank.canvas.mapOffsetX;
       collY = posY - SuperTank.canvas.mapOffsetY;

       switch (direction & 0x0f) {
           case 1: //left
               collX = collX - tileW;
               BposX = posX - bombImage.getWidth() / 2;
               BposY = posY - bombImage.getHeight() / 2;
               if (collX + tileW <= speed) {
                   collFlag = true;
                   mapBlock = 0x0ffff;
                   BposX = SuperTank.canvas.mapOffsetX;
                   posX = SuperTank.canvas.mapOffsetX;
                   break;
               }
               else {
                   collFlag = false;
                   mapBlock = (collY / tileW - 1) * (SuperTank.canvas.mapWidth / tileW) +
                       collX / tileW;
                   for (i = (collY / tileW - 1) * (SuperTank.canvas.mapWidth / tileW) +
                        collX / tileW;
                        i <=
                        ( (collY + frameHeight - 1) / tileW *
                         (SuperTank.canvas.mapWidth / tileW) + collX / tileW + 1);
                        i += (SuperTank.canvas.mapWidth / tileW)) {
                       if (SuperTank.canvas.mapInfo[i] == 3) {
                           grassPaint = true;
                       }

                       if (SuperTank.canvas.mapInfo[i] != 0 &&
                           SuperTank.canvas.mapInfo[i] != 3) {
                           collFlag = true;
                           isContinue1 = false;
                           break;
                       }
                   }
                   if(starNum != 0 && speed > tileW && isContinue1){
                       collX = collX - tileW;
                       mapBlock = (collY / tileW - 1) * (SuperTank.canvas.mapWidth / tileW) + collX / tileW;
                   for (i = (collY / tileW - 1) * (SuperTank.canvas.mapWidth / tileW) +
                        collX / tileW;
                        i <=
                        ( (collY + frameHeight - 1) / tileW *
                         (SuperTank.canvas.mapWidth / tileW) + collX / tileW + 1);
                        i += (SuperTank.canvas.mapWidth / tileW)) {
                        if (SuperTank.canvas.mapInfo[i] == 3) {
                           grassPaint = true;
                       }

                       if (SuperTank.canvas.mapInfo[i] != 0 &&
                           SuperTank.canvas.mapInfo[i] != 3) {
                           collFlag = true;
                    //       isContinue2 = false;
                           break;
                       }
                   }
                  /* if(starNum == 2 && (speed - tileW) >= tileW && isContinue2){
                   	   collX = collX - tileW;
                       mapBlock = (collY / tileW - 1) * (SuperTank.canvas.mapWidth / tileW) + collX / tileW;
                   for (i = (collY / tileW - 1) * (SuperTank.canvas.mapWidth / tileW) +
                        collX / tileW;