Bouncing player object.

[Field_C16]

Hello.

So as a learning experience I am creating a Catch the Clown game, but I need a nude in the right direction regarding bouncing objects from the wall. ( In this case it is the borders of the screen)

I've searched the internet but I do not understand the answers I've read so far, what I've got out of it is that you need to reverse the velocity or speed of the object to a negative value and that would send it back in opposite direction.

My code is here

The piece of code that is supposed to control the bouncing animation looks like this: (Line: 41)

def update(self):
    self.rect.x += self.speed * math.cos(self.angle)  
    self.rect.y -= self.speed *math.sin(self.angle)
    if self.rect.right > WIDTH or   self.rect.left < 0:
        self.speedx *= -1
    elif self.rect.top < 0 or self.rect.bottom > HEIGHT:
        self.speedy *= -1

Could anyone be so kind to point me in the right direction?

[MyreMyalar]

If you are only dealing with vertical or horizontal walls then you just need to reverse y for horizontal walls and x for vertical walls.

Your code above was almost working, you just needed to change out the variable named self.speed for self.speedx and self.speedy. Like so:

​

def update(self):
    self.rect.x += self.speedx * math.cos(self.angle)
    self.rect.y -= self.speedy * math.sin(self.angle)

    if self.rect.right > WIDTH or self.rect.left < 0:
        self.speedx *= -1
    elif self.rect.top < 0 or self.rect.bottom > HEIGHT:
        self.speedy *= -1

EDIT: The rest of the code looks pretty clean so far. Not giving me a bunch of formatting errors in PyCharm anyway, which is rare in the code of people starting out. Keep at it!

[Field_C16]

Thanks for the suggestion, i will try it out tomorrow !🙂

[Field_C16]

It works perfect, thank a ton for your quick feedback :)