add: Player script with hp

add: player death handling and OnLevelFailed event

Assets/Scripts/Player/Player.cs

@@ -0,0 +1,19 @@
+using UnityEngine;
+
+public class Player : MonoBehaviour
+{
+    public float maxHp = 100;
+
+    [SerializeField] float hp;
+
+    void Start() {
+        hp = maxHp;
+    }
+
+    public void DealDamage(float damage) {
+        hp -= damage;
+        if (hp  <= 0) {
+            FindAnyObjectByType<LevelController>().OnPlayerDie();
+        }
+    }
+}