To make the arrow hit the bird, we need to check that the arrow and the bird are intersecting. After we have found an intersection, we need to remove the bird and the arrow. Let's add the code to perform this:
Open the
Bird.hfile and add the following method declaration:-(void)removeBird:(BOOL)hitByArrow;
Then, open the
Bird.mfile and add its implementation:-(void)removeBird:(BOOL)hitByArrow { if (hitByArrow) { CCLOG(@"Bird hit by arrow"); } else { CCLOG(@"Bird flew away"); } [self removeFromParentAndCleanup:YES]; }Open the
GameScene.mfile and add the_arrowsarray instance variable as follows:@implementation GameScene { //..skipped.. NSMutableArray *_arrows; }Scroll to the
initmethod and add the following array initialization code at the top:-(instancetype)init { if (self = [super init]) { _arrows = [NSMutableArray array]; //..skipped.. } ...