Re: [pygame] circular movement in pygame

[Charles Cossà <ccosse@xxxxxxxxx>]

Well I just spent 15 minutes looking at your code ... nothing obvious jumps out, except inconsistent use of variables and representations. Let me ask: Can you write a simple pygame program that makes a sprite move in a circle, yourself, right now?Â

On Tue, Apr 28, 2015 at 11:10 AM, Charles Cossà <ccosse@xxxxxxxxx> wrote:

Hi,

Typically x=r*cos(angle) and y=r*sin(angle) ... you've got the opposite.

You'd have to post more code for anyone to help with you in/out of class problem ...

Charles

On Tue, Apr 28, 2015 at 6:52 AM, diliup gabadamudalige <diliupg@xxxxxxxxx> wrote:

Looking at the code on this page lines 47 & 48

http://programarcadegames.com/python_examples/show_file.php?file=sprite_circle_movement.py

is there a way to doÂ

self.rect.x += some value

self.rect.y += some value

rather than

self.rect.x = self.radius * math.sin(self.angle) + self.center_x

self.rect.y = self.radius * math.cos(self.angle) + self.center_y




?

I tired it in the code attached and strangely it works ok but only OUTSIDE THE class. When I implement the exact code in a class it does something weird. I can't find where I have gone wrong.

Please help.

Many thanks in advance.

Diliup Gabadamudalige

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