Help on humantron

hi i did what it told me to do but my archers and soldiers just do nothing
and i dont attack
here is my code :

`````` Form the rectangle of units around the peasant.
# You need 2 archers and 2 soldiers.

# This function can be helpful.
def summonAndSend(type, x, y):
hero.summon(type)
unit = hero.built[len(hero.built)-1]
hero.command(unit, "move", {"x": x, "y": y})

# The rectangle should be formed around the peasant.
centerUnit = hero.findNearest(hero.findFriends())
# It's the center of the rectangle.
center = centerUnit.pos
# Also you need the height and width.
rectWidth = centerUnit.rectWidth
rectHeight = centerUnit.rectHeight

# First "soldier" to the left bottom corner of the rectangle.
leftBottomX = center.x - rectWidth / 2
leftBottomY = center.y - rectHeight / 2
summonAndSend("soldier", leftBottomX, leftBottomY)

# An "archer" to the left top corner.
leftTopX = center.x - rectWidth / 2
leftTopY = center.y + rectHeight / 2
summonAndSend("archer", leftTopX, leftTopY)

# Summon and send a "soldier" to the right top corner.
a = center.x + rectWidth / 2
b = center.y + rectHeight / 2
summonAndSend("soldier", a, b)

# Summon and send an "archer" to the right bottom corner.
c = center.x + rectWidth / 2
d = center.y - rectHeight / 2
summonAndSend("soldier", c, d)

# Now hide or fight.
enemy = hero.findNearestEnemy()
if enemy:
hero.attack(enemy)

``````

this is my equipment