CH:Windship DevDATA Center

NSMutableArray *_targets;

NSMutableArray *_projectiles;

_targets = [[NSMutableArray alloc] init];

_projectiles = [[NSMutableArray alloc] init];

[_targets release];

_targets = nil;

[_projectiles release];

_projectiles = nil;

target.tag = 1;

[_targets addObject:target];

projectile.tag = 2;

[_projectiles addObject:projectile];

if (sprite.tag == 1) { // 타겟.

[_targets removeObject:sprite];

} else if (sprite.tag == 2) { // 총알.

[_projectiles removeObject:sprite];

}

- (void)update:(ccTime)dt {

NSMutableArray *projectilesToDelete = [[NSMutableArray alloc] init];

for (CCSprite *projectile in _projectiles) {

CGRect projectileRect = CGRectMake(

   projectile.position.x - (projectile.contentSize.width/2), 

   projectile.position.y - (projectile.contentSize.height/2), 

   projectile.contentSize.width, 

   projectile.contentSize.height);

NSMutableArray *targetsToDelete = [[NSMutableArray alloc] init];

for (CCSprite *target in _targets) {

CGRect targetRect = CGRectMake(

   target.position.x - (target.contentSize.width/2), 

   target.position.y - (target.contentSize.height/2), 

   target.contentSize.width, 

   target.contentSize.height);

if (CGRectIntersectsRect(projectileRect, targetRect)) {

[targetsToDelete addObject:target];

}

}

for (CCSprite *target in targetsToDelete) {

[_targets removeObject:target];

[self removeChild:target cleanup:YES];

}

if (targetsToDelete.count > 0) {

[projectilesToDelete addObject:projectile];

}

[targetsToDelete release];

}

for (CCSprite *projectile in projectilesToDelete) {

[_projectiles removeObject:projectile];

[self removeChild:projectile cleanup:YES];

}

[projectilesToDelete release];

}

[self schedule:@selector(update:)];

-(void)addTarget {

CCSprite *target = [CCSprite spriteWithFile:@"target.png" rect:CGRectMake(0, 0, 70, 70)]; 

// 타겟(맘모스)의 Y축 위치 결정.

CGSize winSize = [[CCDirector sharedDirector] winSize];

int minY = target.contentSize.height/2;

int maxY = winSize.height - target.contentSize.height/2;

int rangeY = maxY - minY;

int actualY = (arc4random() % rangeY) + minY;

// 오른쪽 끝 화면 밖에 X축 위치와 위에서 결정한 Y축으로 타켓의 포지션 결정.

target.position = ccp(winSize.width + (target.contentSize.width/2), actualY);

[self addChild:target];

// 타겟의 속도 결정.

int minDuration = 2.0;

int maxDuration = 4.0;

int rangeDuration = maxDuration - minDuration;

int actualDuration = (arc4random() % rangeDuration) + minDuration;

// 액션 생성.

id actionMove = [CCMoveTo actionWithDuration:actualDuration position:ccp(-target.contentSize.width/2, actualY)];

id actionMoveDone = [CCCallFuncN actionWithTarget:self selector:@selector(spriteMoveFinished:)];

[target runAction:[CCSequence actions:actionMove, actionMoveDone, nil]];

}

-(void)spriteMoveFinished:(id)sender {

CCSprite *sprite = (CCSprite *)sender;

[self removeChild:sprite cleanup:YES];

}

[self schedule:@selector(gameLogic:) interval:1.0];

-(void)gameLogic:(ccTime)dt {

[self addTarget];

}

self.isTouchEnabled = YES;

-(void)ccTouchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {

// 처리를 위한 터치 선택.

UITouch *touch = [touches anyObject];

CGPoint location = [touch locationInView:[touch view]];

location = [[CCDirector sharedDirector] convertToGL:location];

// 총알(케익)의 초기 위치 설정.

CGSize winSize = [[CCDirector sharedDirector] winSize];

CCSprite *projectile = [CCSprite spriteWithFile:@"projectile.png" rect:CGRectMake(0, 0, 40, 40)];

projectile.position = ccp(20, winSize.height/2);

// 총알 위치의 오프셋(offset) 측정.

int offX = location.x - projectile.position.x;

int offY = location.y - projectile.position.y;

// 총알 발사를 상/하 수직이나 뒤로 할 경우 탈출함(발사되지 않음).

if (offX <= 0) return;

// 포지션 이중 체크.

[self addChild:projectile];

// 총알을 발사할 위치 측정.

int realX = winSize.width + (projectile.contentSize.width/2);

float ratio = (float) offY / (float) offX;

int realY = (realX * ratio) + projectile.position.y;

CGPoint realDest = ccp(realX, realY);

// Determine the length of how far we're shooting

// 발사한 총알의 길이(궤적)가 얼마인지 측정.

int offRealX = realX - projectile.position.x;

int offRealY = realY - projectile.position.y;

float length = sqrtf((offRealX*offRealX)+(offRealY*offRealY));

float velocity = 480/1; // 480pixels/1sec

float realMoveDuration = length/velocity;

// 총알을 종점(endpoint, 화면 밖...)까지 이동 시킴.

[projectile runAction:[CCSequence actions:

   [CCMoveTo actionWithDuration:realMoveDuration position:realDest],

   [CCCallFuncN actionWithTarget:self selector:@selector(spriteMoveFinished:)], 

   nil]];

}