# Losing

It won't be much of a game if the enemy bullets can't hurt us. Let's fix that next. First we create a variable named game_over and put it outside of any functions (...I put mine just above update(), but you can put it further up if you want to).

``````game_over = False
``````

Next, we will set game_over to True if the enemy bullet hits our tank.

``````if bullet.colliderect(tank):
game_over = True
``````

Note that since our tank is not a list, we are using colliderect instead of collidelist.

Finally, in draw(), we check if game_over is true...

``````elif game_over:
screen.fill((0,0,0))
screen.draw.text('You Lose!', (260,250), color=(255,255,255), fontsize=100)
``````

...and draw "You Lose!" if it is.

# Completed!

The completed game should look like this...

``````import pgzrun
import random

WIDTH=800
HEIGHT=600

tank = Actor('tank_blue')
tank.y = 575
tank.x = 400
tank.angle = 90

enemies = []
for i in range(3):
enemy = Actor('tank_red')
enemy.y = 25
enemy.x = i * 200 + 100
enemy.angle = 270
enemy.move_count = 0
enemies.append(enemy)

background = Actor('grass')

walls = []
for x in range(16):
for y in range(10):
if random.randint(0, 100) < 50:
wall = Actor('wall')
wall.x = x * 50 + 25
wall.y = y * 50 + 25 + 50
walls.append(wall)

bullets = []
bullet_holdoff = 0

enemy_bullets = []

game_over = False

def update():
global bullet_holdoff
global game_over

# This part is for the tank
original_x = tank.x
original_y = tank.y

if keyboard.left:
tank.x = tank.x - 2
tank.angle = 180
elif keyboard.right:
tank.x = tank.x + 2
tank.angle = 0
elif keyboard.up:
tank.y = tank.y - 2
tank.angle = 90
elif keyboard.down:
tank.y = tank.y + 2
tank.angle = 270

if tank.collidelist(walls) != -1:
tank.x = original_x
tank.y = original_y

if tank.x < 0 or tank.x > 800 or tank.y < 0 or tank.y > 600:
tank.x = original_x
tank.y = original_y

# This part is for the bullet
if bullet_holdoff == 0:
if keyboard.space:
bullet = Actor('bulletblue2')
bullet.angle = tank.angle
bullet.x = tank.x
bullet.y = tank.y
bullets.append(bullet)
bullet_holdoff = 100
else:
bullet_holdoff = bullet_holdoff - 1

for bullet in bullets:
if bullet.angle == 0:
bullet.x = bullet.x + 5
elif bullet.angle == 90:
bullet.y = bullet.y - 5
elif bullet.angle == 180:
bullet.x = bullet.x - 5
elif bullet.angle == 270:
bullet.y = bullet.y + 5

for bullet in bullets:
wall_index = bullet.collidelist(walls)
if wall_index != -1:
del walls[wall_index]
bullets.remove(bullet)
if bullet.x < 0 or bullet.x > 800 or bullet.y < 0 or bullet.y > 600:
bullets.remove(bullet)
enemy_index = bullet.collidelist(enemies)
if enemy_index != -1:
del enemies[enemy_index]
bullets.remove(bullet)

# This part is for the enemy
for enemy in enemies:
choice = random.randint(0, 2)
if enemy.move_count > 0:
enemy.move_count = enemy.move_count - 1

original_x = enemy.x
original_y = enemy.y
if enemy.angle == 0:
enemy.x = enemy.x + 2
elif enemy.angle == 90:
enemy.y = enemy.y - 2
elif enemy.angle == 180:
enemy.x = enemy.x - 2
elif enemy.angle == 270:
enemy.y = enemy.y + 2

if enemy.collidelist(walls) != -1:
enemy.x = original_x
enemy.y = original_y
enemy.moveCount = 0

if enemy.x < 0 or enemy.x > 800 or enemy.y < 0 or enemy.y > 600:
enemy.x = original_x
enemy.y = original_y
enemy.move_count = 0

elif choice == 0:
enemy.move_count = 20
elif choice == 1:
enemy.angle = random.randint(0, 3) * 90
else:
bullet = Actor('bulletred2')
bullet.angle = enemy.angle
bullet.x = enemy.x
bullet.y = enemy.y
enemy_bullets.append(bullet)

# This part is for the enemy bullets
for bullet in enemy_bullets:
if bullet.angle == 0:
bullet.x = bullet.x + 5
elif bullet.angle == 90:
bullet.y = bullet.y - 5
elif bullet.angle == 180:
bullet.x = bullet.x - 5
elif bullet.angle == 270:
bullet.y = bullet.y + 5

for bullet in enemy_bullets:
wall_index = bullet.collidelist(walls)
if wall_index != -1:
del walls[wall_index]
enemy_bullets.remove(bullet)
if bullet.x < 0 or bullet.x > 800 or bullet.y < 0 or bullet.y > 600:
enemy_bullets.remove(bullet)
if bullet.colliderect(tank):
game_over = True

def draw():
if len(enemies) == 0:
screen.fill((0,0,0))
screen.draw.text('You Win!', (260,250), color=(255,255,255), fontsize=100)
elif game_over:
screen.fill((0,0,0))
screen.draw.text('You Lose!', (260,250), color=(255,255,255), fontsize=100)
else:
background.draw()
tank.draw()
for enemy in enemies:
enemy.draw()
for bullet in bullets:
bullet.draw()
for bullet in enemy_bullets:
bullet.draw()
for wall in walls:
wall.draw()

pgzrun.go() # Must be last line
``````