-(SKPhysicsContact *)拒绝开火

Question

1)我在SKScene头上设置了委托协议：

@interface WorldScene : SKScene <SKPhysicsContactDelegate>

2)我派代表到物理学界：

- (id) init
{
    self = [super init];
    if (self)
    {
        self.physicsWorld.gravity = CGVectorMake(0,0);
        self.physicsWorld.contactDelegate = self;
        self.physicsBody = [SKPhysicsBody bodyWithEdgeLoopFromRect:self.frame];
    }
    return self;
}

3)我设置了我的口罩：

static const uint32_t playerCategory  =  0x1 << 0;
static const uint32_t wallsCategory  =  0x1 << 1;
static const uint32_t endCategory  =  0x1 << 2;

4)我让我的球员：

    SKSpriteNode *player = [[SKSpriteNode alloc] initWithColor:[SKColor blueColor] size:CGSizeMake(PLAYERSIZE, PLAYERSIZE)];
player.physicsBody = [SKPhysicsBody bodyWithRectangleOfSize:player.size];
player.name = @"player";
player.physicsBody.dynamic = YES;
player.physicsBody.categoryBitMask = playerCategory;
player.physicsBody.collisionBitMask = wallsCategory;
player.physicsBody.contactTestBitMask = endCategory;

5)我做了我的最后一块瓷砖：

SKSpriteNode *tile = [[SKSpriteNode alloc] initWithColor: [SKColor whiteColor] size:CGSizeMake(TILESIZE,TILESIZE)];

if ([cell isEnd]){
    tile.color = [SKColor greenColor];
    tile.name = @"endTile";
    tile.physicsBody = [SKPhysicsBody bodyWithRectangleOfSize: tile.size];
    NSLog(@"END TILE OF SIZE %f x %f", tile.size.width, tile.size.height);
    tile.physicsBody.dynamic = YES;
    tile.physicsBody.affectedByGravity = NO;
    tile.physicsBody.categoryBitMask = endCategory;
    tile.physicsBody.collisionBitMask = 0;
    tile.physicsBody.contactTestBitMask = playerCategory;

}

6)但这件事从来没有人叫过！

- (void)didBeginContact:(SKPhysicsContact *)contact
{

    NSLog(@"Touched!");
    [self removeAllChildren];
}

我在做迷宫游戏。玩家目前与所有的墙壁碰撞罚款，但我希望游戏结束时，它到达最后一块瓷砖。目前，未调用联系人事件。我真的不知道出了什么问题，我的调试器输出设置为显示所有输出(无论如何，如果它到达事件，所有的子程序都应该被移除)。

何必

Answer 1

解决了--结果是它从来没有被调用过，所以委托实际上没有被设置。将所有init代码移到- (void) didMoveToView:(SKView *)视图中，并开始正常工作。