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1）我在 SKScene 标头上设置了委托协议：

@interface WorldScene : SKScene <SKPhysicsContactDelegate>

2）我将委托设置为物理世界：

- (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）我设置了我的位掩码：

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

4）我让我的播放器：

    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）我做我的结束瓷砖：

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）但这永远不会被调用！:(

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

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

我正在做一个迷宫游戏。玩家当前可以与所有墙壁发生碰撞，但我希望游戏在到达最后一个瓷砖时结束。目前，没有调用联系事件。我真的不知道出了什么问题，我将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，所有子级都应该被删除）。

为什么

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1 回答 1

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已解决——原来从未调用过 init，因此实际上并未设置委托。将所有初始化代码移至- (void) didMoveToView:(SKView *)view并开始正常工作。

于 2014-01-11T04:30:12.797 回答