add: damage to lava

update: moved player gravitation to FixedUpdate
update: GameController initialization is moved to Awake

Assets/Scripts/Enemies/DamagingObject.cs

@@ -0,0 +1,25 @@
+using UnityEngine;
+
+public class DamagingObject : MonoBehaviour
+{
+    public float hitRate = 1f;
+    public float damage = 5f;
+
+    [SerializeField] float currentDelay = 0;
+
+    void Start() {
+        if (hitRate != 0) currentDelay = 1 / hitRate;
+    }
+
+    void Update() {
+        if (hitRate != 0) currentDelay = Mathf.Clamp(currentDelay += Time.deltaTime, 0, 1 / hitRate);
+    }
+
+    public void ReverseOnControllerColliderHit(ControllerColliderHit hit) {
+        if (hit.controller.CompareTag("Player") && currentDelay == 1 / hitRate) {
+            Player player = hit.controller.GetComponent<Player>();
+            player.DealDamage(damage);
+            currentDelay = 0;
+        }
+    }
+}