ios - 如何为SCNPhysicsShape声明多个选项

我需要在[SCNPhysicsShape shapeWithGeometry:options:]中声明ShapeTypeKey和ShapeScaleKey。例如，我当前的代码类似于；

NSValue *nodeScale = [NSValue valueWithSCNVector3:SCNVector3Make(200, 400, 150)];
SCNScene *stackScene = [SCNScene sceneNamed:@"stackoverflow.dae"];
SCNNode *stackNode = [stackScene.rootNode childNodeWithName:@"Grid" recursively:NO];
SCNGeometry *nodeGeometry = stackNode.geometry;

stackNode.physicsBody.physicsShape = [SCNPhysicsShape shapeWithGeometry:nodeGeometry options:@{SCNPhysicsShapeTypeKey:SCNPhysicsShapeTypeConcavePolyhedron}];
stackNode.physicsBody.physicsShape = [SCNPhysicsShape shapeWithGeometry:nodeGeometry options:@{SCNPhysicsShapeScaleKey:nodeScale}];

这显然用后者覆盖了前者。

最佳答案

由于它是一本字典，因此您可以执行以下操作:

stackNode.physicsBody.physicsShape = [SCNPhysicsShape shapeWithGeometry:nodeGeometry options:@{SCNPhysicsShapeTypeKey:SCNPhysicsShapeTypeConcavePolyhedron, SCNPhysicsShapeScaleKey:nodeScale}];

字典中的每个元素都可以用逗号分隔

关于ios - 如何为SCNPhysicsShape声明多个选项，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/27732009/