ttrapp.m

TTR的一个经典游戏

				NSLog(@"Playing song %@, tapfile %@", s, t);
				[self playGameWithSong: s 
					tapFile: t];
			}
			if ([trig hasPrefix: @"recordsong "]) {
				NSString * s = [trig substringFromIndex: 11];
				NSString * t = [NSString stringWithFormat: @"/var/root/Media/TTR/Taps/%@.tap", 
					[[s substringToIndex: [s length] - 4] lastPathComponent]];
				NSLog(@"Recording song %@, tapfile %@", s, t);
				[self recordSong: s 
					toFile: t];
			}
		break;
		case msDownloading:
			if ([trig isEqualToString: @"songdownloaded"]) {
				[self displayTracksMenu];
			}
		break;
	}
}

- (void) downloadSong: (NSString *) songName {
	NSLog(@"Gonna download %@", songName);
	NSString * s = [songName stringByAddingPercentEscapesUsingEncoding: NSASCIIStringEncoding];
	NSString * su = [NSString stringWithFormat: @"http://ibrickr.com/ttr/get.php?song=%@&type=song", s];
	NSString * tu = [NSString stringWithFormat: @"http://ibrickr.com/ttr/get.php?song=%@&type=tap", s];
	NSString * sf = [NSString stringWithFormat: @"/var/root/Media/TTR/Music/%@.mp3", songName];
	NSString * tf = [NSString stringWithFormat: @"/var/root/Media/TTR/Taps/%@.tap", songName];
	songDownload = [Downloader downloadURL: su to: sf app: self trigger: @"songdownloaded"];
	tapDownload = [Downloader downloadURL: tu to: tf app: self trigger: @"tapdownloaded"];
	[self displayDownloader];
}

- (void)download:(NSURLDownload *)download didReceiveDataOfLength:(unsigned)length {
	NSLog(@"Download object received %d bytes", length);
}
- (void)downloadDidFinish:(NSURLDownload *)download {
	NSLog(@"Download finished");
}
- (void) clearButtons {
	while ([buttons count]) {
		LabelButton * lb = [buttons objectAtIndex: 0];
		[lb removeFromSuperview];
		[buttons removeObjectAtIndex: 0];
	}
	[self fireWorksBurstAtX: 91 Y: 260];
	[self fireWorksBurstAtX: 252 Y: 334];
}
- (void) addButton: (LabelButton *)lb {
	[menuView addSubview: lb];
	[buttons addObject: lb];
}

- (void) gameInterface {
	[menuView removeFromSuperview];
	[mainView addSubview: gameView];
	[mainView bringSubviewToFront: effectsView];
}

- (void) menuInterface {
	[gameView removeFromSuperview];
	[mainView addSubview: menuView];
	[mainView bringSubviewToFront: effectsView];
}

- (void) playGameWithSong: (NSString *)filename tapFile: (NSString *) tapfile {
	[self fireWorksBurstAtX: 160 Y: 240];
	
	songStarted = NO;
	songFinished = NO;
	recording = NO;
	tapindex = 0;
	badindex = 0;
	score = 0;
	[self gameInterface];
	[self loadTapsFromFile: tapfile];
	[self startPlayingSong: filename];
}

- (void) recordSong: (NSString *)filename toFile: (NSString *) tapfile {
	[self fireWorksBurstAtX: 160 Y: 240];
	
	songStarted = NO;
	songFinished = NO;
	recording = YES;
	tapindex = 0;
	badindex = 0;
	tapcount = 0;
	score = 0;
	recordFile = [tapfile retain];
	
	[self gameInterface];
	[self startPlayingSong: filename];
}

- (void) startPlayingSong: (NSString *)filename {
	avc = [[AVController alloc] init];
	avq = [[AVQueue alloc] init];
	avi = [[AVItem alloc] initWithPath:filename error:&error];
	[avq appendItem:avi error:&error];
	[avc setQueue:avq];
	[avc play:nil];	   
	songStarted = YES;
	}

- (int) columnForX: (float) x {
	if (x < 112) return 0;
	if (x > 212) return 2;
	return 1;
}
- (int) xForColumn: (int) x {
	if (x == 0) return 65;
	if (x == 1) return 160;
	if (x == 2) return 258;
	return 0;
}

- (void) loadTapsFromFile: (NSString *) filename {
	NSData * contents;
	contents = [NSData dataWithContentsOfFile: filename];
	char * data = [contents bytes];
	int len = [contents length];
	char * c;
	tapcount = 0;
	while (c = strchr(data, '\n')) {
		[self prepareForAnotherTap];
		*c = 0;
		if (sscanf(data, "%f, %f, %f", &taps[tapcount].x, &taps[tapcount].y, &taps[tapcount].t) == 3) {
			taps[tapcount].y = 400;
			taps[tapcount].column = [self columnForX: taps[tapcount].x];
			taps[tapcount].x = [self xForColumn: taps[tapcount].column];
			taps[tapcount].tapped = NO;
			tapcount++;
			}
		else {
			break;
			}
		len -= ((unsigned int)c - (unsigned int)data) + 1;
		data = c + 1;
	}
}

- (void) prepareForAnotherTap {
	if (tapcount == tapcapacity) {
		tapcapacity *= 2;
		songTap * na = (songTap *) malloc(sizeof(songTap) * tapcapacity);
		memcpy(na, taps, sizeof(songTap) * tapcount);
		free(taps);
		taps = na;
	}
}

- (void) recordTapAtX: (float) x Y: (float) y {
	double t = [avc currentTime];
	[self prepareForAnotherTap];
	taps[tapcount].t = t;
	taps[tapcount].x = x;
	taps[tapcount].y = y;
	tapcount++;
	NSLog(@"tap: %f, %f, %f, total: %d", x, y, (float) t, tapcount);
	}

- (void) mouseClickAtX: (float) x Y: (float) y {
	if (recording) [self recordTapAtX: x Y: y];
	else if (songStarted) {
		int column = [self columnForX: x];
		double t = [avc currentTime];
		//Search for the nearest matching spot
		int searchstart, searchend, i;
		float diff;
		songTap * s;
		int best_score = wrong_score, thisscore, best_index = -1;
		searchstart = searchend = tapindex;
		while (searchstart > 0 && (t - taps[searchstart].t) < bad_time) searchstart--;
		while (searchend < tapcount && (taps[searchend].t - t) < bad_time) searchend++;
		for (i = searchstart; i <= searchend; i++) {
			s = taps + i;
			if (s->column != column) continue;
			if (s->tapped) continue;
			diff = s->t - t;
			if (diff < 0) diff = -diff;
			thisscore = wrong_score;
			if (diff < bad_time) thisscore = bad_score;
			if (diff < ok_time) thisscore = ok_score;
			if (diff < good_time) thisscore = good_score;
			if (diff < perfect_time) thisscore = perfect_score;
			if (thisscore > best_score) {
				best_score = thisscore;
				best_index = i;
				}
		}
		[self scoreChange: best_score X: x Y: y];
		if (best_index >= 0) taps[best_index].tapped = YES;
	}
	else {
		[self fireWorksBurstAtX: x Y: y];
	}
}

- (void) scoreChange: (int) ds X: (float) x Y: (float) y {
		score += ds;
		[scoreLabel setText: [NSString stringWithFormat: @"Score: %d", score]];
		NSLog(@"Score %d\t%d", ds, score);
		if (score > 0 && score % 5000 < ds) [self fireWorksBurstAtX: x Y: y];
		UIImage * ri = nil;
		if (ds == wrong_score) ri = wrongImage;
		if (ds >= good_score) ri = goodImage;
		if (ds >= perfect_score) ri = perfectImage;
		if (ri != nil) {
		    [self rewardWithImage: ri atX: x Y: y];
		}
}

- (void) rewardWithImage: (UIImage *)img atX: (float)x Y: (float)y {
	[animatables addObject: [[Reward alloc] initWithImage: img X: x Y: y view: effectsView]];			
}

- (void) fireWorksBurstAtX: (float)x Y: (float) y {
	int i;
	for (i = 0; i < 20 && [animatables count] < 40; i++) {
		[animatables addObject: [[Particle alloc] initWithX: x Y: y view: effectsView]];
		}
}

- (void) applicationWillSuspend
{
   
}

- (void)fireTimer:(NSTimer*)theTimer
{
	int i;
	if (!songStarted) {
		
		}
	else if (!songFinished) {
		double d = [avc currentTime];
		if (d == 0 && lastplayingtime > 0) {
			songFinished = YES;
			[self songHasFinished];
			}
		lastplayingtime = d;
		if (!recording) [self animationTickAtTime: d];
		//NSLog(@"Time: %f", (float)d);
	}
	//Animatables
	//NSLog(@"About to tick Animatables %d", [animatables count]);	
	Animatable * an;
	for (i = 0; i < [animatables count]; i++) {
		an = [animatables objectAtIndex: i];
		//NSLog(@"About to tick an Animatable %d", an);
		if (NO == [an tick]) {
			//NSLog(@"About to remove an Animatable");
			[animatables removeObject: an];
			i--;
			//NSLog(@"Done");
		}
	}
	//NSLog(@"Done ticking Animatables %d", animatables);	

}

- (void) animationTickAtTime: (double) d {
	int i;
	float posx, posy, scale, rotation;
	songTap * s;
	//Start at current time
	while (tapindex < tapcount && taps[tapindex].t < d) {
		glowlevels[taps[tapindex].column] = 1;
		glowlevels[3] = 1;
		tapindex++;
	}
	while (badindex < tapcount && taps[badindex].t < d - bad_time) {
		if (NO == taps[badindex].tapped) {
			[self scoreChange: wrong_score X: taps[badindex].x Y: taps[badindex].y];
		}
		badindex++;
	}
	//Move back X many taps or X much time
	int backdex = tapindex + show_count;
	if (backdex > tapcount-1) backdex = tapcount - 1;
	
	//Display those taps
	for (i = 0; i < show_count; i++) {
		UIImageView * uiv = [sparkles objectAtIndex: i];
		if (i + tapindex < tapcount) {
			s = taps + tapindex + i;
			posx = s->x;
			posy = s->y - ((s->t - d) * 480 / slide_time);
			scale = ((s->t - d) < 0.1 ? 2 - (s->t - d) * 10 : 1);
			rotation = d;
			[uiv setAlpha: ((s->t - d) < 0.1 ? (s->t - d) * 10 : 1)];
		}
		else {
			posx = posy = -1000;
			scale = 1;
			rotation = 0;
		}
		[uiv setTransform: 
			CGAffineTransformTranslate(
				CGAffineTransformRotate(
					CGAffineTransformScale(
						CGAffineTransformMakeTranslation(posx-45, posy-45), scale, scale)
					, rotation), 0, 0)];
	}
	
	//Glows
	for (i = 0; i < 4; i++) {
		UIImageView * uiv = [glows objectAtIndex: i];
		if (glowlevels[i] > 0.1) {
			posx = 0; 
			posy = 0;
			if (i <= 2) posx = i * 100;
			else posy = 360;
			[uiv setTransform: CGAffineTransformMakeTranslation(posx, posy)];
			[uiv setAlpha: glowlevels[i]];
			}
		else {
			[uiv setTransform: CGAffineTransformMakeTranslation(-1000, -1000)];
		}
		glowlevels[i] *= 0.9;
	}
	
}

- (void)songHasFinished {
	NSLog(@"Song finished");
	if (recording) {
		int i;
		NSMutableString * s = [NSMutableString stringWithCapacity: 1024];
		for (i = 0; i < tapcount; i++) {
			NSLog(@"Saving %d (%f, %f, %f)", i, taps[i].x, taps[i].y, taps[i].t);
			[s appendFormat: @"%f, %f, %f\n", taps[i].x, taps[i].y, taps[i].t];
		}
		[s writeToFile: recordFile atomically: YES encoding: NSASCIIStringEncoding error: &error];
		NSLog(@"Saved");
		}
	songFinished = NO; songStarted = NO;
	[self menuInterface];
	[self displayMainMenu];
}

@end


 double objc_msgSend_fpret(id self, SEL op, ...) 
 {
    struct objc_method * method = class_getInstanceMethod(self->isa, op);
    int numArgs = method_getNumberOfArguments(method);
    if(numArgs == 2) {
         double (*imp)(id, SEL);
         imp = (double (*)(id, SEL))method->method_imp;
         return imp(self, op);
     } else if(numArgs == 3) {
          va_list ap;
          va_start(ap, op);
          double (*imp)(id, SEL, void *);
          imp = (double (*)(id, SEL, void *))method->method_imp;
          return imp(self, op, va_arg(ap, void *));
     }
     fprintf(stderr, 
        "ERROR: objc_msgSend_fpret called on <%s %p> with selector %s had to return 0.0\n", object_getClassName(self), 
         self, sel_getName(op));
     return 0.0;
 }