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;
+        }
+    }
+}

Assets/Scripts/Enemies/DamagingObject.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: fb7839678d2d2f7429a6dbd22c7efb93

Assets/Scripts/Game/GameController.cs

@@ -13,7 +13,7 @@ public class GameController : MonoBehaviour
     public List<EnemyInfo> enemies;
     public Dictionary<BulletType, int> inventory = new();
 
-    public void Start() {
+    public void Awake() {
         if (i) { Destroy(gameObject); return; }
         i = GetComponent<GameController>();
         DontDestroyOnLoad(gameObject);

Assets/Scripts/Player/PlayerMovement.cs

@@ -31,10 +31,13 @@ public class PlayerMovement : MonoBehaviour
         HandleJumping();
         HandleMovement();
         HandleDashing();
-        DoGravity();
         HandleConstantVelocity();
     }
 
+    void FixedUpdate() {
+        DoGravity();
+    }
+
     void HandleJumping() {
         if (movementInactive > 0) return;
         if (Input.GetKey(KeyCode.Space) && grounded) {
@@ -70,12 +73,12 @@ public class PlayerMovement : MonoBehaviour
     void DoGravity() {
         if (gravityInactive > 0) {
             gravityVelocity = Vector3.zero;
-            gravityInactive = Mathf.Max(gravityInactive -= Time.deltaTime, 0);
+            gravityInactive = Mathf.Max(gravityInactive -= Time.fixedDeltaTime, 0);
             return;
         }
         if (grounded && gravityVelocity.y < 0) gravityVelocity = Vector3.zero;
-        gravityVelocity += Physics.gravity * (Time.deltaTime * gravityMultiplier);
-        characterController.Move(gravityVelocity * Time.deltaTime);
+        gravityVelocity += Physics.gravity * (Time.fixedDeltaTime * gravityMultiplier);
+        characterController.Move(gravityVelocity * Time.fixedDeltaTime);
     }
 
     void HandleConstantVelocity() {