add: working rocket launcher

fix: rocket launcher projectile
update: now all weapons are ready to shoot at start

Assets/Scripts/Player/Minigun.cs

@@ -15,6 +15,10 @@ public class Minigun : Weapon
         }
     }
 
+    void Start() {
+        if (fireRate != 0) currentDelay = 1 / fireRate;
+    }
+
     void Update() {
         if (fireRate != 0) currentDelay = Mathf.Clamp(currentDelay += Time.deltaTime, 0, 1 / fireRate);
     }

Assets/Scripts/Player/Pistol.cs

@@ -15,6 +15,10 @@ public class Pistol : Weapon
         }
     }
 
+    void Start() {
+        if (fireRate != 0) currentDelay = 1 / fireRate;
+    }
+
     void Update() {
         if (fireRate != 0) currentDelay = Mathf.Clamp(currentDelay += Time.deltaTime, 0, 1 / fireRate);
     }

Assets/Scripts/Player/Rifle.cs

@@ -15,6 +15,10 @@ public class Rifle : Weapon
         }
     }
 
+    void Start() {
+        if (fireRate != 0) currentDelay = 1 / fireRate;
+    }
+
     void Update() {
         if (fireRate != 0) currentDelay = Mathf.Clamp(currentDelay += Time.deltaTime, 0, 1 / fireRate);
     }

Assets/Scripts/Player/RocketLauncher.cs

@@ -15,6 +15,10 @@ public class RocketLauncher : Weapon
         }
     }
 
+    void Start() {
+        if (fireRate != 0) currentDelay = 1 / fireRate;
+    }
+
     void Update() {
         if (fireRate != 0) currentDelay = Mathf.Clamp(currentDelay += Time.deltaTime, 0, 1 / fireRate);
     }

Assets/Scripts/Player/RocketProjectile.cs

@@ -25,7 +25,7 @@ public class RocketProjectile : MonoBehaviour
         Collider[] colliders = Physics.OverlapSphere(transform.position, explosionRadius);
         foreach (Collider collider in colliders) {
             if (collider.gameObject.CompareTag("Enemy")) {
-                Enemy enemy = other.GetComponent<Enemy>();
+                Enemy enemy = collider.GetComponent<Enemy>();
                 enemy.DealDamage(damage);
             }
         }