OnCollisionEnter OnTriggerEnter OnControllerColliderHit

Rigidbody.OnCollisionEnter

一般事用于刚体之间的碰撞，In contrast to OnTriggerEnter, OnCollisionEnter is passed the Collision class and not a Collider.The Collision class contains information about contact points, impact velocity etc.If you don't use collisionInfo in the function, leave out the collisionInfo parameter as this avoids unneccessary calculations.Note that collision events are only sent if one of the colliders also has a non-kinematic rigidbody attached.

function OnTriggerEnter (other : Collider) : void

Description

OnTriggerEnter is called when the  other Collider enters the trigger.

This message is sent to the trigger collider and the rigidbody (if any) that the trigger collider belongsto, and to the rigidbody (or the collider if there is no rigidbody) that touches the trigger.Note that trigger events are only sent if one of the colliders also has a rigidbody attached.

需要有trigger attach 到这个Collider 上，那么其他的Collider 进入这个trigger (相当与范围) ,才会调用这个方法，，

function OnControllerColliderHit (hit : ControllerColliderHit) : void

Description

OnControllerColliderHit is called when the controller hits a collider while performing a Move.

This can be used to push objects when they collide with the character.

这事不需要加刚体的