Kinematic Rigidbody moves independently

Question

I have a very strange problem in my 2D Unity game, which I was able to reduce to the next main problem / minimal test case reproduction. Follow these steps to play (Unity 5.1.1f1):

• Create a player object (cube) in place (0,0,0).
• Remove the component BoxCollider.
• Attach the following C#script, Unity will automatically add the necessary components and thereby make it a Rigidbody Collider.
• Set the flag isKinematic.
• Add another cube to the scene in place (2,0,0).
• Remove the component BoxColliderand add BoxCollider2D. This makes this cube a static collider.
• Set the flag isTrigger.
• Run the scene.

Expected Behavior:
A player’s cube accelerates to another cube and stops when it touches it.

Observed behavior:
The player’s cube accelerates to another cube and then continues to move at a constant speed.

:
, Rigidbodies , . , . - , rigidbody.MovePosition(), transform.Translate() transform.position. script, .
transform.position , , , , , .

:

• Update() Time.deltaTime .
• Update() timestep 0, stop. .
• , , , . - Rigidbody ( ) . , 0.
• velocity 0, . , Update() ( , Debug.Log() ).

, , 30 , , . , , , . .

---

SimpleController2D.cs

using UnityEngine;
using System.Collections;

[RequireComponent (typeof (BoxCollider2D), typeof (Rigidbody2D))]
public class SimpleController2D : MonoBehaviour {

    public Vector3 velocity = Vector3.zero;

    private Transform thisTransform;
    private Rigidbody2D thisRigidbody;

    public bool stop = false;

    void Awake () {
        thisTransform = GetComponent<Transform> ();
        thisRigidbody = GetComponent<Rigidbody2D> ();
    }

    void FixedUpdate() {
        float timestep = Time.fixedDeltaTime; // temporarily stored for ease of access
        if (stop) {
            return; // freeze on hit
        }

        velocity.x += timestep; // accelerate
        /* add a second slash (/) to toggle between transform and rigidbody
        thisTransform.position += velocity * timestep; /*/
        thisRigidbody.MovePosition ((Vector3)thisRigidbody.position + velocity*timestep); //*/
    }

    void OnTriggerEnter2D(Collider2D col) {
        stop = true;
    }
}

Answer 1

Unity 5.1.1f1 ​​ 5.1.1p2 .

: http://unity3d.com/unity/qa/patch-releases?version=5.1

?

MovePosition. MovePosition . Unity , . 5.1.1f1 reset , .