[Unity] API learning --> Three ways to create GameObject (object)

GameObjectIt is the most critical object in Unity

How to create objects:

1 Created through the constructor

• You can directly new a GameObject
• Created in the start function, the game object can be created anywhere, and the test is created once
• By default only Transform
• You can pass parameters when creating a new object to create a specified object

    void Start() {
    
    
        new GameObject();
        new GameObject("Cube");//创建一个正方体
    }

2 Instance

• Instantiate is a static method that can be GameObject.Instantiate();called by and needs to pass a prefab (prefab).
• The Transform property of the created object can be assigned directly
• It can be found that there is a Clone behind the newly created game object, indicating that it was cloned through a prefab. He can also be cloned based on game objects.

    void Start() {
    
    
        Instantiate(gameObject,transform);
    }

3 CreatePrimitive

• Create basic geometry
• CreatePrimitive (PrimitiveType type);
• Pass in a geometry type
• The Transform property is the default property

	void Start() {
    
    
        GameObject.CreatePrimitive(PrimitiveType.Cube);
    }

Summarize

• The construction method is generally used to create an empty game object
• InstanceUsed to instantiate various things like special effects, game characters, etc.
• CreatePrimitiveCan create some basic geometry