《30天精通iPhone手机编程》－Day30－打砖块游戏
世界上的第一款打砖块的游戏的设计者就是创立苹果的史蒂夫 乔布斯，最后一天的demo就是完成一个功能简单的打砖块的游戏。
BoardView.m
//触摸开始时调用
- (void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
//定义图形位置变量对象的坐标，locationInView表明视图中触摸点的坐标
startLocation= [[touches anyObject] locationInView:self];
//把BoardView子视图放在最前面
[[self superview] bringSubviewToFront:self];
}
//获取手指的触摸移动事件方法
- (void) touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{
//定义图形位置变量对象的坐标，locationInView表明视图中触摸点的坐标
CGPoint pt=[[touches anyObject] locationInView:self];
//创建图形框架尺寸变量的对象
CGRect frame=[self frame];
//定义图形框架位置变量对象的x坐标值，pt.x表明图形位置变量对象的x坐标值，startLocation.x表明触摸点的x坐标
frame.origin.x = frame.origin.x + (pt.x-startLocation.x);
//设定图形框架位置变量数值
[self setFrame:frame];
}
MainViewController.m
-(void)playSound:(NSString*)soundAct{
NSString *path = [NSString stringWithFormat:@"%@%@",
[[NSBundle mainBundle] resourcePath],
soundAct];
NSLog(@"%@\n", path);
SystemSoundID soundID;
NSURL *filePath = [NSURL fileURLWithPath:path isDirectory:NO];
AudioServicesCreateSystemSoundID((CFURLRef)filePath, &soundID);
AudioServicesPlaySystemSound(soundID);
[filePath release];
}
- (IBAction)onLeft:(id)sender {
[UIImageView beginAnimations:@"animLeft" context:NULL];
[UIImageView setAnimationDuration:0.2];
board.center=CGPointMake(board.center.x-20, board.center.y);
[UIImageView commitAnimations];
soundFile = [NSString stringWithFormat:@"/button_press.caf"];
[self playSound: soundFile];
}
- (IBAction)onRight:(id)sender {
[UIImageView beginAnimations:@"animRight" context:NULL];
[UIImageView setAnimationDuration:0.2];
board.center=CGPointMake(board.center.x+20, board.center.y);
[UIImageView commitAnimations];
soundFile = [NSString stringWithFormat:@"/button_press.caf"];
[self playSound: soundFile];
}
- (IBAction)onStart:(id)sender {
if(!timer){
timer=[NSTimer scheduledTimerWithTimeInterval:speed target:self selector:@selector(onTimer) userInfo:nil repeats:YES];
//球开始时的坐标
ball.frame=CGRectMake(160, 328, 32, 32);
[self.view addSubview:ball];
//弹板开始时的坐标
board.frame=CGRectMake(160, 360, 48, 10);
}
}
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
[super viewDidLoad];
//球的动态移动距离
moveDis=CGPointMake(-3, -3);
speed=0.03;
board=[[BoardView alloc] initWithImage:[UIImage imageNamed:@"board.png"]];
//定义图像的用户交互作用属性值
[board setUserInteractionEnabled:YES];
//定义弹板的坐标，尺寸
board.frame=CGRectMake(160, 360, BOARDWIDTH, BOARDHIGHT);
ball=[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"ball.png"]];
[self.view addSubview:board];
level=1; score=0; highest=0;
levelLabel.text=[NSString stringWithFormat:@"游戏级别: %i",level];
scoreLabel.text=[NSString stringWithFormat:@"现时得分: %i",score];
highestLabel.text=[NSString stringWithFormat:@"最高成绩: %i",highest];
//调用显示游戏级数方法
[self levelMap:level];
}
//显示游戏级别方法
- (void)levelMap:(int)inlevel {
UIImageView *brick;
switch (inlevel) {
case 1:
bricks=[NSMutableArray arrayWithCapacity:20];
//砖块数量
numOfBricks=20;
for (int i=0; i<3; i++) {
for (int j=0;j<6;j++) {
brick=[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"brick.png"]];
//定义砖块图像视图开始时的坐标位置和尺寸大小
brick.frame=CGRectMake(20+j*BRICKWIDTH+j*5, TOP+10+BRICKHIGHT*i+5*i, BRICKWIDTH, BRICKHIGHT);
[self.view addSubview:brick];
[bricks addObject:brick];
}
}
brick=[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"brick.png"]];
//定义砖块图像视图开始时的坐标位置和尺寸大小
brick.frame=CGRectMake(20, TOP+10+20*2+5*4, BRICKWIDTH, BRICKHIGHT);
[self.view addSubview:brick];
[bricks addObject:brick];
brick=[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"brick.png"]];
brick.frame=CGRectMake(20+5*BRICKWIDTH+5*5, TOP+10+20*2+5*4, BRICKWIDTH, BRICKHIGHT);
[self.view addSubview:brick];
[bricks addObject:brick];
[bricks retain];
break;
case 2:
bricks=[NSMutableArray arrayWithCapacity:28];
numOfBricks=20;
for (int i=0; i<7; i++) {
for (int j=0;j<2;j++) {
brick=[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"brick.png"]];
brick.frame=CGRectMake(20+j*BRICKWIDTH+j*5, TOP+10+BRICKHIGHT*i+5*i, BRICKWIDTH, BRICKHIGHT);
[self.view addSubview:brick];
[bricks addObject:brick];
}
}
for (int i=0; i<7; i++) {
for (int j=0;j<2;j++) {
brick=[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"brick.png"]];
brick.frame=CGRectMake(20+j*BRICKWIDTH+j*5+180, TOP+10+BRICKHIGHT*i+5*i, BRICKWIDTH, BRICKHIGHT);
[self.view addSubview:brick];
[bricks addObject:brick];
}
}
[bricks retain];
break;
default:
break;
}
}
- (void)onTimer{
float posx,posy;
//球的中心坐标
posx=ball.center.x; posy=ball.center.y;
ball.center = CGPointMake(posx+moveDis.x, posy+moveDis.y);
if (ball.center.x>305 || ball.center.x<15 ) {
moveDis.x=-moveDis.x;
}
if ( ball.center.y<TOP ) {
moveDis.y=-moveDis.y;
}
int j=[bricks count];
for (int i=0; i<j; i++) {
UIImageView *brick=(UIImageView *)[bricks objectAtIndex:i];
if (CGRectIntersectsRect(ball.frame, brick.frame)&&[brick superview]) {
soundFile = [NSString stringWithFormat:@"/Brick_move.caf"];
[self playSound: soundFile];
score+=100;
[brick removeFromSuperview];
if (rand()%5==0) {
UIImageView* imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"shorten.png"]];
imageView.frame = CGRectMake(brick.frame.origin.x, brick.frame.origin.y, 48, 48);
[self.view addSubview:imageView];
[UIView beginAnimations:nil context:imageView];
[UIView setAnimationDuration:5.0];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
imageView.frame = CGRectMake(brick.frame.origin.x, 380, 40, 40);
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:@selector(removeSmoke:finished:context:)];
[UIView commitAnimations];
}
numOfBricks--;
if ((ball.center.y-16<brick.frame.origin.y+BRICKHIGHT || ball.center.y+16>brick.frame.origin.y)
&& ball.center.x>brick.frame.origin.x && ball.center.x<brick.frame.origin.x+BRICKWIDTH) {
moveDis.y=-moveDis.y;
}else if (ball.center.y>brick.frame.origin.y && ball.center.y<brick.frame.origin.y+BRICKHIGHT
&& (ball.center.x+16>brick.frame.origin.x || ball.center.x-16<brick.frame.origin.x+BRICKWIDTH)){
moveDis.x=-moveDis.x;
}else{
moveDis.x=-moveDis.x;
moveDis.y=-moveDis.y;
}
break;
}
}
if (numOfBricks==0) {
if (level<2) {
[ball removeFromSuperview];
[timer invalidate];
level++; speed=speed-0.003;
levelLabel.text=[NSString stringWithFormat:@"Level %i",level];
[self levelMap:level];
}else{
UIAlertView *alert=[[UIAlertView alloc] initWithTitle:@"K.O."
message:@"恭喜！你赢了"
delegate:self cancelButtonTitle:@"OK"
otherButtonTitles:nil];
[alert show];
soundFile = [NSString stringWithFormat:@"/Win.caf"];
[self playSound: soundFile];
}
}
if (CGRectIntersectsRect(ball.frame, board.frame)) {
soundFile = [NSString stringWithFormat:@"/Kick.caf"];
[self playSound: soundFile];
if (ball.center.x>board.frame.origin.x&&ball.center.x<board.frame.origin.x+BOARDWIDTH) {
moveDis.y=-moveDis.y;
}else {
moveDis.x=-moveDis.x;
moveDis.y=-moveDis.y;
}
}else{
if (ball.center.y>380){
[ball removeFromSuperview];
[timer invalidate];
timer=NULL;
UIAlertView *alert=[[UIAlertView alloc] initWithTitle:@"Game over"
message:@"你输了，继续获取更好的成绩..."
delegate:self
cancelButtonTitle:@"确定"
otherButtonTitles:nil];
[alert show];
soundFile = [NSString stringWithFormat:@"/Lose.caf"];
[self playSound: soundFile];
}
}
scoreLabel.text=[NSString stringWithFormat:@"现时得分: %i",score];
}