# Stuck: Library Tactician
**URL:** https://discourse.codecombat.com/t/stuck-library-tactician/4868
**Category:** Level Help
**Created:** [September 7, 2015, 2:21pm UTC](https://discourse.codecombat.com/t/stuck-library-tactician/4868 "2015-09-07T14:21:42Z")
**Posts on this page:** 19
**Page:** 1
### Author:  [@IcyMagus](https://discourse.codecombat.com/u/IcyMagus)
#### Post date: [September 7, 2015, 2:21pm UTC](https://discourse.codecombat.com/t/stuck-library-tactician/4868/1 "2015-09-07T14:21:43Z")
Hi! This is my first time posting so please forgive me if I do anything wrong š
So Iāve been playing on the level Library Tactician and Iāve been stuck. I have looked at the stimulation and the only thing wrong is that my archers wonāt target the strongest target.
Here is my code:
```
def commandSoldier(soldier, soldierIndex, numSoldiers):
angle = Math.PI * 2 * soldierIndex / numSoldiers
defendPos = {"x": 41, "y": 40}
defendPos.x += 10 * Math.cos(angle)
defendPos.y += 10 * Math.sin(angle)
self.command(soldier, "defend", defendPos);
def findStrongestTarget():
mostHealth = 0
bestTarget = None
enemies = self.findEnemies()
enemyIndex = 0
while len(enemies) > enemyIndex:
enemy = enemies[enemyIndex]
if enemy:
enemyIndex += 1
if enemy.health > mostHealth:
mostHealth = enemy.health
bestTarget = enemy
.
if bestTarget and bestTarget.health > 15:
return bestTarget
else:
return None
def commandArcher(archer):
nearest = archer.findNearestEnemy()
if archerTarget:
self.command(archer, "attack", archerTarget)
elif nearest:
self.command(archer, "attack", nearest)
archerTarget = None
loop:
if self.gold > self.costOf("soldier"):
self.summon("soldier")
if not archerTarget or archerTarget.health <= 0:
archerTarget = findStrongestTarget()
friends = self.findFriends()
soldiers = self.findByType("soldier")
archers = self.findByType("archers")
for i, soldier in enumerate(soldiers):
commandSoldier(soldier, i, len(soldiers));
for i in range(len(archers)):
archer = archers[i]
commandArcher(archer)
```
Sorry about the indents, I canāf find a way to indent so i would appreciate if you help me in that too. But my main problem is that I canāt find anything wrong with the code so I would be really (really really really) thankful if you pointed out the mistake. Thanks! š
---
### Author:  [@UltCombo](https://discourse.codecombat.com/u/UltCombo)
#### Post date: [September 7, 2015, 4:49pm UTC](https://discourse.codecombat.com/t/stuck-library-tactician/4868/2 "2015-09-07T16:49:09Z")
> [@IcyMagus](#):
>
> Sorry about the indents, I canāf find a way to indent so i would appreciate if you help me in that too.
Click in the Edit button (the pencil icon below your post), select the code and press Ctrl+K (or click in the `` button). šø
---
### Author:  [@IcyMagus](https://discourse.codecombat.com/u/IcyMagus)
#### Post date: [September 8, 2015, 3:46am UTC](https://discourse.codecombat.com/t/stuck-library-tactician/4868/3 "2015-09-08T03:46:50Z")
Thanks \<3 I really appreciate it! š
---
### Author:  [@James63](https://discourse.codecombat.com/u/James63)
#### Post date: [September 8, 2015, 1:35pm UTC](https://discourse.codecombat.com/t/stuck-library-tactician/4868/4 "2015-09-08T13:35:47Z")
You have a stray
> .
in there.
I tried your code with and without it and it works if you get rid of that.
---
### Author:  [@nick](https://discourse.codecombat.com/u/nick)
#### Post date: [September 9, 2015, 4:54am UTC](https://discourse.codecombat.com/t/stuck-library-tactician/4868/5 "2015-09-09T04:54:54Z")
Also, are you actually calling findStrongestTarget in the commandArcher method, and calling the commandArcher method on each archer? I think thereās some parts at the bottom where you have to set that up, too.
---
### Author:  [@IcyMagus](https://discourse.codecombat.com/u/IcyMagus)
#### Post date: [September 9, 2015, 5:14am UTC](https://discourse.codecombat.com/t/stuck-library-tactician/4868/6 "2015-09-09T05:14:24Z")
Thanks Nick, I changed my code a bit and now its working fine! š
---
### Author:  [@sir-sonic-Destroyer](https://discourse.codecombat.com/u/sir-sonic-Destroyer)
#### Post date: [November 8, 2015, 4:01pm UTC](https://discourse.codecombat.com/t/stuck-library-tactician/4868/7 "2015-11-08T16:01:50Z")
what is a stray because it is bothering me on the level
---
### Author:  [@sir-sonic-Destroyer](https://discourse.codecombat.com/u/sir-sonic-Destroyer)
#### Post date: [November 8, 2015, 4:03pm UTC](https://discourse.codecombat.com/t/stuck-library-tactician/4868/8 "2015-11-08T16:03:53Z")
Icy magnus do you mind helping me.please because im stuck!thank you
---
### Author:  [@ChronistGilver](https://discourse.codecombat.com/u/ChronistGilver)
#### Post date: [November 8, 2015, 4:29pm UTC](https://discourse.codecombat.com/t/stuck-library-tactician/4868/9 "2015-11-08T16:29:05Z")
Hello, Dinesh, and welcome.
Phrases like āI need help!ā or āThis code doesnāt work!ā do not help us do anything about your problem. Give us more information. What happens when you run your code? Is there an error? If so, what does it say? Post your code and a description of what happened. Donāt forget to read the FAQ before you post. Format your code properly!
---
### Author:  [@sir-sonic-Destroyer](https://discourse.codecombat.com/u/sir-sonic-Destroyer)
#### Post date: [November 8, 2015, 4:41pm UTC](https://discourse.codecombat.com/t/stuck-library-tactician/4868/10 "2015-11-08T16:41:07Z")
thank you! i finished the level just now but i still have no idea what a stray is in general.
p.s it would be nice if you could call me sanjjith because that is my name
---
### Author:  [@sir-sonic-Destroyer](https://discourse.codecombat.com/u/sir-sonic-Destroyer)
#### Post date: [November 8, 2015, 4:45pm UTC](https://discourse.codecombat.com/t/stuck-library-tactician/4868/11 "2015-11-08T16:45:03Z")
i just changed my username
---
### Author:  [@sir-sonic-Destroyer](https://discourse.codecombat.com/u/sir-sonic-Destroyer)
#### Post date: [November 8, 2015, 5:09pm UTC](https://discourse.codecombat.com/t/stuck-library-tactician/4868/12 "2015-11-08T17:09:30Z")
hey chronistgilver, can you you help me if possible , on the level steelclaw gap.
thanks
---
### Author:  [@ChronistGilver](https://discourse.codecombat.com/u/ChronistGilver)
#### Post date: [November 8, 2015, 9:13pm UTC](https://discourse.codecombat.com/t/stuck-library-tactician/4868/13 "2015-11-08T21:13:45Z")
Create a new topic for it. This is not the place to discuss Steelclaw Gap.
---
### Author:  [@harper4](https://discourse.codecombat.com/u/harper4)
#### Post date: [December 24, 2015, 4:05pm UTC](https://discourse.codecombat.com/t/stuck-library-tactician/4868/14 "2015-12-24T16:05:39Z")
I am having trouble after the board is about 3/4 of the way complete. All the sudden my archers just quit targeting anyone after targeting them flawlessly up to that pointā¦
```python
# Hushbaum has been ambushed by ogres!
# She is busy healing her soldiers, you should command them to fight!
# The ogres will send more troops if they think they can get to Hushbaum or your archers, so keep them inside the circle!
# Soldiers spread out in a circle and defend.
def commandSoldier(soldier, soldierIndex, numSoldiers):
angle = Math.PI * 2 * soldierIndex / numSoldiers
defendPos = {"x": 41, "y": 40}
defendPos.x += 10 * Math.cos(angle)
defendPos.y += 10 * Math.sin(angle)
self.command(soldier, "defend", defendPos);
# Find the strongest target (most health)
# This function returns something! When you call the function, you will get some value back.
def findStrongestTarget():
mostHealth = 0
bestTarget = None
enemies = self.findEnemies()
enemyIndex = 0
# Figure out which enemy has the most health, and set bestTarget to be that enemy.
while len(enemies) > enemyIndex:
enemy = enemies[enemyIndex]
if enemy:
enemyIndex += 1
if enemy.health > mostHealth:
mostHealth = enemy.health
bestTarget = enemy
# Only focus archers' fire if there is a big ogre.
if bestTarget and bestTarget.health > 15:
return bestTarget
else:
return None
def penderAttack():
enemy = self.findNearest(self.findByType("ogre"))
if enemy:
if self.canCast("drain-life", enemy):
self.cast("drain-life", enemy)
elif self.canCast("shockwave", enemy):
self.cast("shockwave", enemy)
elif self.canCast("slow", enemy):
self.cast("slow", enemy)
def summonFriend():
if self.gold > self.costOf("soldier"):
self.summon("soldier")
def weakestFriend():
soldiers = self.findByType("soldier")
weakestFriend = None
leastHealth = 100
for soldier in soldiers:
if soldier.health < leastHealth:
weakestFriend = soldier
soldier += 1
if weakestFriend:
if self.canCast("flame-armor", weakestFriend):
self.cast("flame-armor", weakestFriend)
# If the strongestTarget has more than 15 health, attack that target. Otherwise, attack the nearest target.
def commandArcher(archers):
enemies = archer.findEnemies()
enemy = archer.findNearest(enemies)
if archerTarget:
self.command(archer, "attack", archerTarget)
elif enemy:
self.command(archer, "attack", enemy)
archerTarget = None
loop:
# If archerTarget is dead or doesn't exist, find a new one.
if not archerTarget or archerTarget.health <= 0:
# Set archerTarget to be the target that is returned by findStrongestTarget()
archerTarget = findStrongestTarget()
friends = self.findFriends()
soldiers = self.findByType("soldier")
archers = self.findByType("archer")
for i, soldier in enumerate(soldiers):
commandSoldier(soldier, i, len(soldiers));
for i, archer in enumerate(archers):
commandArcher(archer, i, len(archers));
commandArcher()
weakestFriend()
penderAttack()
summonFriend()
```
---
### Author:  [@harper4](https://discourse.codecombat.com/u/harper4)
#### Post date: [December 28, 2015, 3:06pm UTC](https://discourse.codecombat.com/t/stuck-library-tactician/4868/15 "2015-12-28T15:06:11Z")
Well, commenting out the pender attack function seemed to fix the issue with the archers randomly stopping their attackā¦
---
### Author:  [@sheene](https://discourse.codecombat.com/u/sheene)
#### Post date: [April 17, 2020, 4:03am UTC](https://discourse.codecombat.com/t/stuck-library-tactician/4868/16 "2020-04-17T04:03:11Z")
yo hice todo bien pero, nearest = archer.findNearestEnemy() no funciona
nearest = archer.findNearestEnemy()
def commandSoldier(soldier, soldierIndex, numSoldiers):
angle = Math.PI \* 2 \* soldierIndex / numSoldiers
defendPos = {āxā: 41, āyā: 40}
defendPos.x += 10 \* Math.cos(angle)
defendPos.y += 10 \* Math.sin(angle)
hero.command(soldier, ādefendā, defendPos);
def findStrongestTarget():
mostHealth = 0
bestTarget = None
enemies = hero.findEnemies()
index=0
while index \< len(enemies):
ene=enemies[index]
if ene.health\>mostHealth:
bestTarget = ene
mostHealt = ene.health
index +=1
```
if bestTarget and bestTarget.health > 15:
return bestTarget
else:
return None
```
def commandArcher(archer):
nearest = archer.findNearestEnemy()
if archerTarget:
hero.command(archer, āattackā, archerTarget)
elif nearest:
hero.command(archer, āattackā, nearest)
archerTarget = None
while True:
if not archerTarget or archerTarget.health \<= 0:
archerTarget = findStrongestTarget()
```
friends = hero.findFriends()
soldiers = hero.findByType("soldier")
archer=hero.findByType("archer")
for i in range(len(soldiers)):
soldier = soldiers[i]
commandSoldier(soldier, i, len(soldiers));
commandArcher(archer)
```
---
### Author:  [@Deadpool198](https://discourse.codecombat.com/u/Deadpool198)
#### Post date: [April 17, 2020, 2:27pm UTC](https://discourse.codecombat.com/t/stuck-library-tactician/4868/17 "2020-04-17T14:27:51Z")
Hi, Iām not sure whether the rest of your code works or not, but the source of your error is in these two lines:
```python
archer = hero.findByType("archer")
commandArcher(archer)
```
Go to the documentation for hero.findByType(āarcherā) (itās on the item bar in the level under your glasses), what does it return? An array or an object? (a singular thing like enemy when you write enemy = hero.findNearestEnemy().
Now think about this line:
> [@sheene](#):
>
> ```python
> nearest = archer.findNearestEnemy()
>
> ```
If the variable archer is indeed an array how is this going to work?
I hope this helps
Danny
---
### Author:  [@sheene](https://discourse.codecombat.com/u/sheene)
#### Post date: [April 17, 2020, 5:23pm UTC](https://discourse.codecombat.com/t/stuck-library-tactician/4868/18 "2020-04-17T17:23:39Z")
entoses que ba aqui
while True:
# If archerTarget is defeated or doesnāt exist, find a new one.
if not archerTarget or archerTarget.health \<= 0:
# Set archerTarget to be the target that is returned by findStrongestTarget()
archerTarget = findStrongestTarget()
```
friends = hero.findFriends()
soldiers = hero.findByType("soldier")
```
_emphasized text_ # Create a variable containing your archers.
archers = hero.findByType(āarcherā)
for i in range(len(soldiers)):
soldier = soldiers[i]
commandSoldier(soldier, i, len(soldiers));
# use commandArcher() to command your archers
commandArcher(archers)
---
### Author:  [@Deadpool198](https://discourse.codecombat.com/u/Deadpool198)
#### Post date: [April 18, 2020, 9:08am UTC](https://discourse.codecombat.com/t/stuck-library-tactician/4868/19 "2020-04-18T09:08:25Z")
Sorry, maybe I didnāt phrase that right. The function commandArcher() takes a single parameter, and that parameter needs to be a single thing, not an array.
What you need to do is copy this code:
> [@sheene](#):
>
> ```python
> for i in range(len(soldiers)):
> soldier = soldiers[i]
> commandSoldier(soldier, i, len(soldiers));
>
> ```
And do the exact same for the archers.
Danny