# enemy attack AI
**URL:** https://discussions.unity.com/t/enemy-attack-ai/509806
**Category:** Scripting
**Tags:** Scripting
**Created:** [July 16, 2013, 5:21pm UTC](https://discussions.unity.com/t/enemy-attack-ai/509806 "2013-07-16T17:21:27Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@ks9109](https://discussions.unity.com/u/ks9109)
#### Post date: [July 16, 2013, 5:21pm UTC](https://discussions.unity.com/t/enemy-attack-ai/509806/1 "2013-07-16T17:21:27Z")
trying to add a script to an enemy but the errors that i have on the script are odd to me its saying expecting } found " but there are no " anywhere on that line of code please someone assist me…idk how to put the code in the box on here please bare with me…
var attack : int = 5;
var nextAttack : int = 0;
function Update () {
playerDist = Vector3.Distance(transform.position , player.position);
if(playerDist \<= attackDist){
transform.LookAt(player);
animation.CrossFade (“attack”);
Attack();
return;
}
if(playerDist \<= seekplayerDist){
transform.LookAt(player);
transform.position += transform.forward \* speed \* Time.deltaTime;
animation.CrossFade (“run”);
} else {
animation.CrossFade (“idle”);
}
}
function Attack (){
var attackRate : int = 5;
var nextAttack : int = 0;
attackStrenght = weaponDamage + strenght;
damage = (opponentAC) - (attackStrenght);
weaponDamage = Random.Range(1.0, 6.0);
if (Time.time \> nextAttack) {
nextAttack = Time.time + attackRate;
[//playerStats.health](https://playerStats.health) += damage;
}
---
### Author:  [@Eiznek](https://discussions.unity.com/u/Eiznek)
#### Post date: [July 16, 2013, 6:12pm UTC](https://discussions.unity.com/t/enemy-attack-ai/509806/2 "2013-07-16T18:12:46Z")
Use Code tags…
I only found that you missed a } at the end.
Maybe seperate your { } on different lines if you have problems… I use this as habit now a days. Its easier to see what bracket matches the other.
Example:
```auto
public class MyClass
{
public void SomeMethod()
{
if(IsSomethingHappening())
{
//Do something
}
}
private bool IsSomethingHappening()
{
return true;
}
}
```
```auto
var attack : int = 5;
var nextAttack : int = 0;
function Update () {
playerDist = Vector3.Distance(transform.position , player.position);
if(playerDist <= attackDist) {
transform.LookAt(player);
animation.CrossFade ("attack");
Attack();
return;
}
if(playerDist <= seekplayerDist) {
transform.LookAt(player);
transform.position += transform.forward * speed * Time.deltaTime;
animation.CrossFade ("run");
} else {
animation.CrossFade ("idle");
}
}
function Attack () {
var attackRate : int = 5;
var nextAttack : int = 0;
attackStrength = weaponDamage + attackStrength;
damage = (opponentAC) - (attackStrength);
weaponDamage = Random.Range(1.0f, 6.0f);
if (Time.time > nextAttack) {
nextAttack = Time.time + attackRate;
//playerStats.health += damage;
}
} // <--- You missed this bracket.
```
---
### Author:  [@Ezro](https://discussions.unity.com/u/Ezro)
#### Post date: [July 16, 2013, 6:15pm UTC](https://discussions.unity.com/t/enemy-attack-ai/509806/3 "2013-07-16T18:15:11Z")
> [@ks9109](#):
>
> trying to add a script to an enemy but the errors that i have on the script are odd to me its saying expecting } found " but there are no " anywhere on that line of code please someone assist me…idk how to put the code in the box on here please bare with me…
>
> var attack : int = 5;
> var nextAttack : int = 0;
>
> function Update () {
>
> playerDist = Vector3.Distance(transform.position , player.position);
>
> if(playerDist \<= attackDist){
>
> transform.LookAt(player);
> animation.CrossFade (“attack”);
>
> Attack();
>
> return;
>
> }
>
> if(playerDist \<= seekplayerDist){
>
> transform.LookAt(player);
> transform.position += transform.forward \* speed \* Time.deltaTime;
> animation.CrossFade (“run”);
>
> } else {
>
> animation.CrossFade (“idle”);
>
> }
>
> }
>
> function Attack (){
>
> var attackRate : int = 5;
> var nextAttack : int = 0;
>
> attackStrenght = weaponDamage + strenght;
> damage = (opponentAC) - (attackStrenght);
> weaponDamage = Random.Range(1.0, 6.0);
>
> if (Time.time \> nextAttack) {
>
> nextAttack = Time.time + attackRate;
> [//playerStats.health](https://playerStats.health) += damage;
> }
Hi ks9109,
You are missing a } at the end of your script.
The last } is closing the if statement, and Attack() is left open.
Regards,
Ezro
---
### Author:  [@ks9109](https://discussions.unity.com/u/ks9109)
#### Post date: [July 16, 2013, 7:32pm UTC](https://discussions.unity.com/t/enemy-attack-ai/509806/4 "2013-07-16T19:32:51Z")
thank you for the help as soon as i added a bracket it worked but then there were many more errors that were not seen by my naked eye
Assets/Assets/Asset Folder/Droid Girl u4/Fbx/EnemyAttack.js(8,52): BCE0005: Unknown identifier: ‘player’.
Assets/Assets/Asset Folder/Droid Girl u4/Fbx/EnemyAttack.js(10,18): BCE0005: Unknown identifier: ‘attackDist’.
Assets/Assets/Asset Folder/Droid Girl u4/Fbx/EnemyAttack.js(14,18): BCE0005: Unknown identifier: ‘player’.
Assets/Assets/Asset Folder/Droid Girl u4/Fbx/EnemyAttack.js(24,18): BCE0005: Unknown identifier: ‘seekplayerDist’.
Assets/Assets/Asset Folder/Droid Girl u4/Fbx/EnemyAttack.js(26,18): BCE0005: Unknown identifier: ‘player’.
Assets/Assets/Asset Folder/Droid Girl u4/Fbx/EnemyAttack.js(27,43): BCE0005: Unknown identifier: ‘speed’.
Assets/Assets/Asset Folder/Droid Girl u4/Fbx/EnemyAttack.js(49,18): BCE0005: Unknown identifier: ‘weaponDamage’.
Assets/Assets/Asset Folder/Droid Girl u4/Fbx/EnemyAttack.js(49,33): BCE0005: Unknown identifier: ‘strenght’.
Assets/Assets/Asset Folder/Droid Girl u4/Fbx/EnemyAttack.js(50,11): BCE0005: Unknown identifier: ‘opponentAC’.
any help…
---
### Author:  [@Ezro](https://discussions.unity.com/u/Ezro)
#### Post date: [July 16, 2013, 7:53pm UTC](https://discussions.unity.com/t/enemy-attack-ai/509806/5 "2013-07-16T19:53:38Z")
> [@ks9109](#):
>
> thank you for the help as soon as i added a bracket it worked but then there were many more errors that were not seen by my naked eye
>
> Assets/Assets/Asset Folder/Droid Girl u4/Fbx/EnemyAttack.js(8,52): BCE0005: Unknown identifier: ‘player’.
> Assets/Assets/Asset Folder/Droid Girl u4/Fbx/EnemyAttack.js(10,18): BCE0005: Unknown identifier: ‘attackDist’.
> Assets/Assets/Asset Folder/Droid Girl u4/Fbx/EnemyAttack.js(14,18): BCE0005: Unknown identifier: ‘player’.
> Assets/Assets/Asset Folder/Droid Girl u4/Fbx/EnemyAttack.js(24,18): BCE0005: Unknown identifier: ‘seekplayerDist’.
> Assets/Assets/Asset Folder/Droid Girl u4/Fbx/EnemyAttack.js(26,18): BCE0005: Unknown identifier: ‘player’.
> Assets/Assets/Asset Folder/Droid Girl u4/Fbx/EnemyAttack.js(27,43): BCE0005: Unknown identifier: ‘speed’.
> Assets/Assets/Asset Folder/Droid Girl u4/Fbx/EnemyAttack.js(49,18): BCE0005: Unknown identifier: ‘weaponDamage’.
> Assets/Assets/Asset Folder/Droid Girl u4/Fbx/EnemyAttack.js(49,33): BCE0005: Unknown identifier: ‘strenght’.
> Assets/Assets/Asset Folder/Droid Girl u4/Fbx/EnemyAttack.js(50,11): BCE0005: Unknown identifier: ‘opponentAC’.
>
> any help…
ks9109,
It’s hard to provide help without seeing the full code, but those errors are because you don’t have the variables defined within their relative scope.
Regards,
Ezro
---
### Author:  [@ks9109](https://discussions.unity.com/u/ks9109)
#### Post date: [July 17, 2013, 9:03pm UTC](https://discussions.unity.com/t/enemy-attack-ai/509806/6 "2013-07-17T21:03:44Z")
when you say that you mean like
var player
var attackDist
etc…
right Ezro
---
### Author:  [@ks9109](https://discussions.unity.com/u/ks9109)
#### Post date: [July 20, 2013, 6:24am UTC](https://discussions.unity.com/t/enemy-attack-ai/509806/7 "2013-07-20T06:24:43Z")
[CODE
]var attack : int = 5;
var nextAttack : int = 0;
var attackDist;
var weaponDamage;
var strength;
var opponentAC;
var Speed;
var seekplayerDist;
function Update () {
playerDist = Vector3.Distance(transform.position , player.position);
if(playerDist \<= attackDist){
transform.LookAt(player);
animation.CrossFade (“attack”);
Attack();
return;
}
if(playerDist \<= seekplayerDist){
transform.LookAt(player);
transform.position += transform.forward \* speed \* Time.deltaTime;
animation.CrossFade (“run”);
} else {
animation.CrossFade (“idle”);
}
}
function Attack (){
var attackRate : int = 5;
var nextAttack : int = 0;
attackStrenght = weaponDamage + strenght;
damage = (opponentAC) - (attackStrenght);
weaponDamage = Random.Range(1.0, 6.0);
if (Time.time \> nextAttack) {
nextAttack = Time.time + attackRate;
[//playerStats.health](https://playerStats.health) += damage;
}
[/CODE]