Unity - Collision detection within a collision detection

Question

I am shooting a ball at blocks, and there are 3 Mega Blocks that make the weapon stronger. On my Mega Block 1, if a collision is detected from the Bullet Ball I shot, run code. That works fine. Now, if Mega Block 1 (tag=MegaBlock01) was hit, do one code, if Mega Block 2 was hit, etc. I wanted to put this code block on each Mega Block so I don't have to write new code for each.

public void OnTriggerEnter(Collider other)  // This code is on my Mega Blocks
{
    if (other.CompareTag("BulletBall"))  // The Ball has hit me
    {
       StartMegaWeapon01();

        // What I want is:  
        // If my tag is MegaBlock01, run StartMegaWeapon01();
        // If my tag is MegaBlock02, run StartMegaWeapon02();

    }
}

I want a collision detection within a collision detection.

Fotis Aronis · Accepted Answer · 2022-06-05 16:20:08Z

2

You need to have the collider of your bullet checked as IsTrigger since you invoke the OnTriggerEnter method. At least one of the 2 colliding objects also needs to have a rigidbody so that the physics engine can properly compute collisions.

Once you have that, getting the tag of the gameObject from this should be enough:

if (gameObject.tag == "MegaBlock01")
    StartMegaWeapon01();

edited Jun 5, 2022 at 16:20

answered Apr 3, 2019 at 16:03

Fotis Aronis

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