How does bullet reflect of the wall

Question

I\'ve been working on this project about tanks (based on game Tank Trouble) and I\'ve made walls appear on the screen. How can I make that when projectiles/bullets collide with

Answer 1

I have a solution. First check for a collision with bullet.rect.colliderect(wall.rect), then check if the center of the bullet is left of the wall, then it must be colliding on the left side, using this logic, you can do the same for the other sides.

So in the bullet update, i added:

for wall in game.wall_list:
     if self.rect.colliderect(wall.rect): #if collided
         if self.rect.centerx < wall.rect.left: 
             self.direction.x *= -1
             self.rect.right = wall.rect.left
             self.lives -= 1
             if self.lives == 0:
                 return self.kill()    
             break # break so dont check every other wall
         if self.rect.centerx > wall.rect.right:
             self.direction.x *= -1
             self.rect.left = wall.rect.right
             self.lives -= 1
             if self.lives == 0:
                 return self.kill()    
             break  
         if self.rect.centery < wall.rect.top:
             self.direction.y *= -1
             self.rect.bottom = wall.rect.top
             self.lives -= 1
             if self.lives == 0:
                 return self.kill()    
             break    
         if self.rect.centery > wall.rect.bottom:
             self.direction.y *= -1
             self.rect.top = wall.rect.bottom
             self.lives -= 1
             if self.lives == 0:
                 return self.kill()    
             break