i dont usually do coding and this is my first time doing this this are the default coding that the unity free version had for me

pragma strict

public var maxHealth : float = 100.0; public var health : float = 100.0; public var regenerateSpeed : float = 0.0; public var invincible : boolean = false; public var dead : boolean = false;

public var damagePrefab : GameObject; public var damageEffectTransform : Transform; public var damageEffectMultiplier : float = 1.0; public var damageEffectCentered : boolean = true;

public var scorchMarkPrefab : GameObject = null; private var scorchMark : GameObject = null;

public var damageSignals : SignalSender; public var dieSignals : SignalSender;

private var lastDamageTime : float = 0; private var damageEffect : ParticleEmitter; private var damageEffectCenterYOffset : float;

private var colliderRadiusHeuristic : float = 1.0;

function Awake () { enabled = false; if (damagePrefab) { if (damageEffectTransform == null) damageEffectTransform = transform; var effect : GameObject = Spawner.Spawn (damagePrefab, Vector3.zero, Quaternion.identity); effect.transform.parent = damageEffectTransform; effect.transform.localPosition = Vector3.zero; damageEffect = effect.particleEmitter; var tempSize : Vector2 = Vector2(collider.bounds.extents.x,collider.bounds.extents.z); colliderRadiusHeuristic = tempSize.magnitude * 0.5; damageEffectCenterYOffset = collider.bounds.extents.y;

 }
 if (scorchMarkPrefab) {
     scorchMark = GameObject.Instantiate(scorchMarkPrefab, Vector3.zero, Quaternion.identity);
     scorchMark.SetActive (false);
 }

}

function OnDamage (amount : float, fromDirection : Vector3) { // Take no damage if invincible, dead, or if the damage is zero if(invincible) return; if (dead) return; if (amount <= 0) return;

 // Decrease health by damage and send damage signals

 // @HACK: this hack will be removed for the final game
 //  but makes playing and showing certain areas in the
 //  game a lot easier
 /*
 #if !UNITY_IPHONE && !UNITY_ANDROID && !UNITY_WP8
 if(gameObject.tag != "Player")
     amount *= 10.0;
 #endif
 */

 health -= amount;
 damageSignals.SendSignals (this);
 lastDamageTime = Time.time;

 // Enable so the Update function will be called
 // if regeneration is enabled
 if (regenerateSpeed > 0)
     enabled = true;

 // Show damage effect if there is one
 if (damageEffect) {
     damageEffect.transform.rotation = Quaternion.LookRotation (fromDirection, Vector3.up);
     if(!damageEffectCentered) {
         var dir : Vector3 = fromDirection;
         dir.y = 0.0;
         damageEffect.transform.position = (transform.position + Vector3.up * damageEffectCenterYOffset) + colliderRadiusHeuristic * dir;
     }
     // @NOTE: due to popular demand (ethan, storm) we decided
     // to make the amount damage independent ...
     //var particleAmount = Random.Range (damageEffect.minEmission, damageEffect.maxEmission + 1);
     //particleAmount = particleAmount * amount * damageEffectMultiplier;
     damageEffect.Emit();// (particleAmount);
 }

 // Die if no health left
 if (health <= 0)
 {
 if GameScore.RegisterDeath(gameObject);

     health = 0;
     dead = true;
     dieSignals.SendSignals (this);
     enabled = false;

     // scorch marks
     if (scorchMark) {
         scorchMark.SetActive (true);
         // @NOTE: maybe we can justify a raycast here so we can place the mark
         // on slopes with proper normal alignments
         // @TODO: spawn a yield Sub() to handle placement, as we can
         // spread calculations over several frames => cheap in total
         var scorchPosition : Vector3 = collider.ClosestPointOnBounds (transform.position - Vector3.up * 100);
         scorchMark.transform.position = scorchPosition + Vector3.up * 0.1;
         scorchMark.transform.eulerAngles.y = Random.Range (0.0, 90.0);
     }
 }

}

function OnEnable () { Regenerate (); }

// Regenerate health

function Regenerate () { if (regenerateSpeed > 0.0f) { while (enabled) { if (Time.time > lastDamageTime + 3) { health += regenerateSpeed;

             yield;

             if (health >= maxHealth) {
                 health = maxHealth;
                 enabled = false;
             }
         }
         yield WaitForSeconds (1.0f);
     }
 }

}

im having an error on the gamescore part Assets/default stuff/Scripts/Weapons/Health.js(95,17): BCE0005: Unknown identifier: 'GameScore'.