python - How to set degrees to a maximum of 360? -

i'm making program , want let snake go in same direction heading, when try code:

def move(self):     if pressed_keys[self.ctrls[0]]and self.dire == 0:         self.y -= 10     if pressed_keys[self.ctrls[0]]and self.dire == 90:         self.x -= 10     if pressed_keys[self.ctrls[0]]and self.dire == 180:         self.y += 10     if pressed_keys[self.ctrls[0]]and self.dire == -90:         self.x += 10  def turn_left(self):     self.dire += 90  def turn_right(self):     self.dire -= 90 . . . while 1:     clock.tick(60)     event in pygame.event.get():         if event.type == quit:             sys.exit()         if event.type == keydown , event.key == k_left:             snake.turn_left()         if event.type == keydown , event.key == k_right:             snake.turn_right()     pressed_keys = pygame.key.get_pressed() 

there problem: can turn twice right arrow-key can't go in direction anymore. because did was: pressed arrow twice -> self.dire - 90 - 90. self.dire -180. change values: change

if pressed_keys[self.ctrls[0]]and self.dire == 180:     self.y += 10 

to

if pressed_keys[self.ctrls[0]]and self.dire == 180 or -180:     self.y += 10 

but if press right arrow 4 times, must add value -540 , on. know better solution? or can self.dire must between -360 , 360 degrees?

this based off @pavlus suggestion use modulo % operator, along few formatting fixes make viewing easier.

def move(self):     self.dire = self.dire % 360      if pressed_keys[self.ctrls[0]]:         if self.dire == 0: self.y -= 10         if self.dire == 90: self.x -= 10         if self.dire == 180: self.y += 10         if self.dire == 270: self.x += 10  def turn_left(self):     self.dire = (self.dire + 90) % 360  def turn_right(self):     self.dire = (self.dire - 90) % 360 . . . while 1:     clock.tick(60)     event in pygame.event.get():         if event.type == quit:             sys.exit()         if event.type == keydown , event.key == k_left:             snake.turn_left()         if event.type == keydown , event.key == k_right:             snake.turn_right()     pressed_keys = pygame.key.get_pressed()