[ta-edu-course-survival-game] Chapter 2 — Script Interactions

_Instructions.md

• Create MeleeWeapon.cs
  • A melee weapon is a great example for OnTriggerEnter() because it needs to know when it comes in contact with a combatant
• Add a private, serialized float field called "damage"
• Implement OnTriggerEnter()
• Add an if-statement for other.TryGetComponent(out Combatant combatant))
• Add a call to combatant.Damage(damage) to the body of the if-statement
  • This behavior depends on Unity's physics system
  • We'll need to add a collider to both the melee weapon and combatant GameObjects
• Switch to Unity
• Set up the scene and verify the behavior

Combatant.cs

public class Combatant : MonoBehaviour
{
  public float Health;
  
  public void Damage(int damage)
  {
    Health = Math.Max(0, Health - damage);
  }
}

MeleeWeapon.cs

public class MeleeWeapon : MonoBehaviour
{
  [SerializeField] private float damage;

  public void OnTriggerEnter(Collider other)
  {
    if (other.TryGetComponent(out Combatant combatant))
    {
      combatant.Damage(damage);
    }
  }
}