koobas.hobune.stream
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(Solved) Collision happens, but is not detected?
Hi, I'm trying to make a 2D breakout clone as an assignment, but I've ran into a problem; whenever I start the game the ball will collide with a block, and det block should be destroyed. But it does not. The ball bounces of it and back to the paddle. So I made a debug.log, but it does not show me the collision.
I get the error: MissingComponentException: There is no 'Collider' attached to the "Block" game object, but a script is trying to access it.
However, there is a boxcollider attached to the Block, as well as a rigidbody, so goes for the Ball.
Here is the BoxScript:
using UnityEngine; using System.Collections;
public class BlockScript : MonoBehaviour {
public BlockType blocktype = BlockType.Blue;
private int points;
public int hp;
private int timesHit;
public bool doubleX = false;
public enum BlockType{
Blue = 1,
Green = 5,
Yellow = 10,
Orange = 15,
Red = 20,
Black = -10,
}
void Start(){
}
void update(){
}
void OnCollisionEnter2D(Collision2D col) {
Debug.Log (collider.gameObject.name);
//GameManager.score += points;
Destroy (gameObject);
}
}
Also, changing it between OnCollisionEnter and OnCollisionEnter2D makes the error disappear, but the debug does not detect the collision, nor is the object destroyed.
2D physics and 3D physics are handled by completely different systems and do not interact with each other.
If you're making a 2D game, you need Collider2Ds and Rigidbody2D components on your objects, and use OnCollisionEnter2D() in your code.
They all have Rigidbody 2d and box/circle Collider 2D attached to them. Having OnCollisionEnter2D(Collision2D col) on them rather than void OnCollisionEnter(Collision col) causes the game to freeze and give me an error:
$$anonymous$$issingComponentException: There is no 'Collider' attached to the "Block" game object, but a script is trying to access it.
Because there isn't. Presumably you meant col.gameObject.name, to refer to the col variable passed into the function, not the (apparently non-existant) collider component attached the object the script is on.
