hero.java

本j2me坦克游戏是在Nokia平台下开发的

			            System.out.println(exception);
			        }

					posX = SuperTank.canvas.mapOffsetX + SuperTank.canvas.mapWidth/2 - (SuperTank.canvas.tileWidth*2+2) - frameWidth - 2;
                    posY = SuperTank.canvas.mapOffsetY + SuperTank.canvas.mapHeight - frameHeight - 2;
			    	status = 0;
					count = 40;
					direction = 3;
			       	drawHero = heroUp;
				} else {
					if(overstart){
					    posX = -1000;
					    posY = -1000;
                                            SuperTank.canvas.life --;
		   			    SuperTank.canvas.gameLose = true;
		   			    SuperTank.canvas.overtimer.timeCounter = 0;
		   			    overstart = false;
		   			}
				}
			}
		} else {

            if(capped){

                if ( (count & 1) > 0 ){
                    switch (direction & 0x0f) {
                        case 1: //left
                            g.drawImage(heroLeft2, posX, posY, g.TOP | g.LEFT);
                            break;

                        case 2: //right
                            g.drawImage(heroRight2, posX, posY, g.TOP | g.LEFT);
                            break;

                        case 3: //up
                            g.drawImage(heroUp2, posX, posY, g.TOP | g.LEFT);
                            break;
                        case 4: //down
                            g.drawImage(heroDown2, posX, posY, g.TOP | g.LEFT);
                        default:
                            break;
                    }
                }else{
                    switch (direction & 0x0f) {
                        case 1: //left
                            g.drawImage(heroLeft1, posX, posY, g.TOP | g.LEFT);
                            break;

                        case 2: //right
                            g.drawImage(heroRight1, posX, posY, g.TOP | g.LEFT);
                            break;

                        case 3: //up
                            g.drawImage(heroUp1, posX, posY, g.TOP | g.LEFT);
                            break;
                        case 4: //down
                            g.drawImage(heroDown1, posX, posY, g.TOP | g.LEFT);
                        default:
                            break;
                    }
                }
                count++;
            }else{
                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;
                }
            }
            //modified by johnson here????? is it redudant????
	//		g.drawImage(drawHero, posX, posY, g.TOP|g.LEFT);
		}
        if(grassPaint){
            SuperTank.canvas.grassPaint = true;
         //   SuperTank.canvas.reDraw(3,g);
        }
    }

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

		collX = posX-SuperTank.canvas.mapOffsetX;
		collY = posY-SuperTank.canvas.mapOffsetY;
        int pos = 0;
        boolean movable = false;
        boolean upCol = true;
        boolean leftCol = true;

		switch(direction & 0x0f) {
	        case 1:		//left
	        	collX = collX - speed;
		        if ( collX <= 0 )
		        	collFlag = true;
		        else {
		        	collFlag = false;
		        	for ( i = (collY/tileW * (SuperTank.canvas.mapWidth/tileW) + collX/tileW); i <= ((collY + frameHeight)/tileW * (SuperTank.canvas.mapWidth/tileW) + collX/tileW); 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;
                            pos = i - (collY/tileW * (SuperTank.canvas.mapWidth/tileW) + collX/tileW);
                            if(pos <= (frameHeight/8)/tileW * (SuperTank.canvas.mapWidth/tileW)){
                                upCol = true;
                                if (SuperTank.canvas.mapInfo[ ( (collY +
                                    frameHeight / 8) / tileW *
                                    (SuperTank.canvas.mapWidth / tileW) + collX / tileW)] !=
                                    0
                                    &&
                                    SuperTank.canvas.mapInfo[ ( (collY +
                                    frameHeight / 8) / tileW *
                                    (SuperTank.canvas.mapWidth / tileW) + collX / tileW)] !=
                                    3) {
                                    movable = false;
                                }
                                else {
                                    movable = true;
                                }

                            }else if(pos >= (7*frameHeight/8)/tileW * (SuperTank.canvas.mapWidth/tileW)){
                                movable = true;
                                upCol = false;
                            }else{
                                movable = false;
                            }
			        		break;
			        	}
			        }
                    if(collFlag&&movable){
                        if(upCol){
                            posY = posY +1;
                        }else{
                            posY = posY -1;
                        }
                    }
	        	}

	            break;

	        case 2:		//right
	        	collX = collX + frameWidth+ speed;
		        if (collX >= SuperTank.canvas.mapWidth)
			        collFlag = true;
			    else {
		        	collFlag = false;
		        	for ( i = (collY/tileW * (SuperTank.canvas.mapWidth/tileW) + collX/tileW); i <= ((collY + frameHeight)/tileW * (SuperTank.canvas.mapWidth/tileW) + collX/tileW); 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;
                            pos = i - (collY/tileW * (SuperTank.canvas.mapWidth/tileW) + collX/tileW);
                            if(pos <= (frameHeight/8)/tileW * (SuperTank.canvas.mapWidth/tileW)){
                                upCol = true;
                                if(SuperTank.canvas.mapInfo[((collY + frameHeight/8)/tileW * (SuperTank.canvas.mapWidth/tileW) + collX/tileW)]!=0
                                   && SuperTank.canvas.mapInfo[((collY + frameHeight/8)/tileW * (SuperTank.canvas.mapWidth/tileW) + collX/tileW)]!=3){
                                    movable = false;
                                }else{
                                    movable = true;
                                }
                            }else if(pos >= (7*frameHeight/8)/tileW * (SuperTank.canvas.mapWidth/tileW)){
                                movable = true;
                                upCol = false;
                            }else{
                                movable = false;
                            }
			        		break;
			        	}
			        }
                    if(collFlag&& movable){
                        if(upCol){
                            posY = posY +1;
                        }else{
                            posY = posY -1;
                        }
                    }
	        	}

    	        break;

	        case 3:		//up
	        	collY = collY - speed;
		        if (collY <= 0)
		        	collFlag = true;
		        else {
		        	collFlag = false;
		        	for ( i = (collY/tileW * (SuperTank.canvas.mapWidth/tileW) + collX/tileW); i <= (collY/tileW * (SuperTank.canvas.mapWidth/tileW) + (collX + frameWidth)/tileW); i ++ ){
                        if (SuperTank.canvas.mapInfo[i] == 3) {
                            grassPaint = true;
                        }

                        if ( SuperTank.canvas.mapInfo[i] != 0 && SuperTank.canvas.mapInfo[i] != 3){
			        		collFlag = true;
                            pos = i - (collY/tileW * (SuperTank.canvas.mapWidth/tileW) + collX/tileW);
                            if(pos <= (frameWidth/8)/tileW){
                                leftCol = true;
                                if (SuperTank.canvas.mapInfo[ (collY / tileW *
                                    (SuperTank.canvas.mapWidth / tileW) +
                                    (collX + frameWidth / 8) / tileW)] != 0
                                    &&
                                    SuperTank.canvas.mapInfo[ (collY / tileW *
                                    (SuperTank.canvas.mapWidth / tileW) +
                                    (collX + frameWidth / 8) / tileW)] != 3) {
                                    movable = false;
                                }
                                else {
                                    movable = true;
                                    }
                            }else if(pos >= (7*frameWidth/8)/tileW){
                                leftCol = false;
                                movable = true;
                            }else{
                                movable = false;
                            }
			        		break;
			        	}
			        }
                    if(collFlag&&movable){
                        if (leftCol) {
                            posX = posX + 1;
                        }
                        else {
                            posX = posX - 1;
                        }
                    }
	        	}

        	    break;

	        case 4:		//down
	        	collY = collY + frameHeight+ speed;
		        if (collY >= SuperTank.canvas.mapHeight)
			        collFlag = true;
			    else {
		        	collFlag = false;
		        	for ( i = (collY/tileW * (SuperTank.canvas.mapWidth/tileW) + collX/tileW); i <= (collY/tileW * (SuperTank.canvas.mapWidth/tileW) + (collX + frameWidth)/tileW); i ++ ){
                        if (SuperTank.canvas.mapInfo[i] == 3) {
                            grassPaint = true;
                        }

                        if ( SuperTank.canvas.mapInfo[i] != 0 && SuperTank.canvas.mapInfo[i] != 3 ){
			        		collFlag = true;
                            pos = i - (collY/tileW * (SuperTank.canvas.mapWidth/tileW) + collX/tileW);
                            if(pos <= (frameWidth/8)/tileW){
                                leftCol = true;
                                if (SuperTank.canvas.mapInfo[ (collY / tileW *
                                    (SuperTank.canvas.mapWidth / tileW) +
                                    (collX + frameWidth / 8) / tileW)] != 0
                                    &&
                                    SuperTank.canvas.mapInfo[ (collY / tileW *
                                    (SuperTank.canvas.mapWidth / tileW) +
                                    (collX + frameWidth / 8) / tileW)] != 3) {
                                    movable = false;
                                }
                                else {
                                    movable = true;
                                    }

                            }else if(pos >= (7*frameWidth/8)/tileW){
                                leftCol = false;
                                movable = true;
                            }else{
                                movable = false;
                            }

			        		break;
			        	}
			        }
                    if(collFlag&&movable){
                        if (leftCol) {
                            posX = posX + 1;
                        }
                        else {
                            posX = posX - 1;
                        }
                    }
	        	}

	        default:
	            break;
		}
    	return collFlag;
    }

    boolean isobjCollide( int objX, int objY, int objWidth,int objHeight) {
        boolean collFlag = false;
        int collX, collY;
        int i;

        collX = posX;
        collY = posY;

        switch(direction & 0x0f) {
            case 1:		//left
                collX = collX - speed;
                break;

            case 2:		//right
                collX = collX + speed;
                break;

            case 3:		//up
                collY = collY - speed;
                break;

            case 4:		//down
                collY = collY + speed;
            default:
                break;
        }

        if ( collX < (objX + objWidth) && (collX + frameWidth) > objX &&
                collY < (objY + objHeight) && (collY + frameHeight) > objY )
            collFlag = true;

        return collFlag;
    }

}