ios - 如何在点击 SCNNode 时删除它？

Question

我有使用 SceneView 的 Creat Cubes，我想在点击操作时消失立方体。如何实现？

这是我创建 Cube 的代码

     SCNBox *Box = [SCNBox boxWithWidth:2.0 height:2.0 length:2.0 
     chamferRadius:Radius];


     Box.firstMaterial.diffuse.contents = [UIColor whiteColor];
     SCNNode *cubeNode = [SCNNode nodeWithGeometry:Box];
     [ArrBoxNode addObject:cubeNode];

     self.sceneView.backgroundColor = [UIColor redColor];
     self.view.backgroundColor  = [UIColor grayColor];

     cubeNode.position = SCNVector3Make(4,0,0);

     [scene.rootNode addChildNode:cubeNode];
     self.sceneView.scene = scene;
     [self.sceneView sizeToFit];




 - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
  {
      UITouch *touch = [touches anyObject];
      CGPoint touchPoint = [touch locationInView:self.sceneView];
      SCNHitTestResult *hitTestResult = [[self.sceneView 
      hitTest:touchPoint options:nil] firstObject];
      SCNNode *hitNode = hitTestResult.node;

      for (SCNNode *node in ArrBoxNode) {
         [node removeFromParentNode];
   } 
 }

但我无法从 Tap 操作中删除节点。能否请您帮助我，并提出更好的建议，谢谢...:)

Answer 1

您需要使用 [hitNode removeFromParentNode]; 删除您正在触摸的节点

代码

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
  {
    UITouch *touch = [touches anyObject];
    CGPoint touchPoint = [touch locationInView:self.sceneView];
    SCNHitTestResult *hitTestResult = [[self.sceneView hitTest:touchPoint options:nil] firstObject];
    SCNNode *hitNode = hitTestResult.node;
    [hitNode removeFromParentNode];
}