【Unity3D】OnTriggerEnter与OnCollisionEnter

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简单的说：

OnTriggerEnter：一个有Rigidbody，另一个有Trigger 的Collider

OnCollisionEnter：一个有Rigidbody（非Kinematic），另一个有非Trigger的Collider

来自官方的表格：

Collision detection occurs and messages are sent upon collision
	Static Collider	Rigidbody Collider	Kinematic  Rigidbody Collider	Static  Trigger Collider	Rigidbody  Trigger Collider	Kinematic Rigidbody  Trigger Collider
Static Collider		Y
Rigidbody Collider	Y	Y	Y
Kinematic Rigidbody Collider		Y
Static Trigger Collider
Rigidbody Trigger Collider
Kinematic Rigidbody Trigger Collider

Trigger messages are sent upon collision
	Static Collider	Rigidbody Collider	Kinematic  Rigidbody Collider	Static  Trigger Collider	Rigidbody  Trigger Collider	Kinematic Rigidbody  Trigger Collider
Static Collider					Y	Y
Rigidbody Collider				Y	Y	Y
Kinematic Rigidbody Collider				Y	Y	Y
Static Trigger Collider		Y	Y		Y	Y
Rigidbody Trigger Collider	Y	Y	Y	Y	Y	Y
Kinematic Rigidbody Trigger Collider	Y	Y	Y	Y	Y	Y