防止2D播放器穿过墙壁

Question

I am trying to make the basics of a top down game.

I currently have a Player sprite that has a Kinematic RigidBody2D applied to it with a box collider 2D. The scale of this sprite is (1,1).

The wall sprite has a box collider with a scale of (20,1).

To control the player I am using the following code.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;


public class PlayerMovement : MonoBehaviour {
    public Rigidbody2D rb2D;
    void Start() {
        rb2D = GetComponent<Rigidbody2D>();
    }
    void FixedUpdate() {
        if (Input.GetKey (KeyCode.UpArrow)) {
            Vector2 move = new Vector2(0,1);
            rb2D.MovePosition(rb2D.position + move);
        }
        if (Input.GetKey (KeyCode.DownArrow)) {
            Vector2 move = new Vector2(0,-1);
            rb2D.MovePosition(rb2D.position + move);
        }
    }
}

With the code above I can control the Player and move them up or down, when attempting to hit the wall below the Player does not hit the wall but instead travels through it as if it was not there.

I'm new to Unity so any other information that might be useful feel free to let me know and I'll update my question.

Thanks!

Answer 1

Uncheck IsKinematic property in the RigidBody2D component. That's because setting isKinematic to true makes your gameObject NOT get affected by any physical or gravity forces.

And also see if your wall is not marked as IsTrigger ! Check that in the Collider component of your wall .