Learning 2D Game Development with Unity®: A Hands-On Guide to Game Creation

Scripting the Coin Box Component

The Component we’re about to script will swap between the active and disabled versions of the coin box Prefabs when the player strikes the box from below. Open the CoinBox script and fill it out as shown in Listing 8.4.

Listing 8.4 The CoinBox Script

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public class CoinBox : MonoBehaviour{  public GameObject poppedStatePrefab;  void OnTriggerEnter2D(Collider2D collider)  {    Vector3 heading = this.transform.position - collider.gameObject.transform.position;    float distance = heading.magnitude;    Vector3 direction = heading / distance;    if((direction.x < 0.1 && direction.x > -1.1)      && (direction.y < 1.1 && direction.y > 0.4)      && collider.tag == "Player")    {      CoinPop(); ...