Only alive participants can act

Assets/Battle/BattleParticipant.cs

@@ -5,11 +5,15 @@ using UnityEngine;
 
 public class BattleParticipant
 {
+    public delegate void DeathAction(BattleParticipant participant);
+    public event DeathAction OnDeath;
+
     protected bool isHero;
     protected string displayName;
     protected int hp;
     protected int maxHP;
     protected int block;
+    protected bool dead;
 
     public BattleParticipant(bool isHero) {
         this.isHero = isHero;
@@ -32,7 +36,7 @@ public class BattleParticipant
     }
 
     public bool IsAlive() {
-        return this.hp > 0;
+        return !this.dead;
     }
 
     public int DealDamage(int damage) {
@@ -43,6 +47,10 @@ public class BattleParticipant
         }
         damage = Math.Min(this.hp, damage);
         this.hp -= damage;
+        if (this.hp <= 0) {
+            this.dead = true;
+            TriggerOnDeath();
+        }
         return damage;
     }
 
@@ -78,4 +86,10 @@ public class BattleParticipant
             this.hp += amount;
         }
     }
+
+    private void TriggerOnDeath() {
+        if (this.OnDeath != null) {
+            this.OnDeath(this);
+        }
+    }
 }