On 28/04/15 16:38, diliup gabadamudalige wrote:
---------- Forwarded message ---------- From: diliup gabadamudalige <dili...@gmail.com> Date: Tue, Apr 28, 2015 at 6:22 PM Subject: circular movement in pygame To: pygame-us...@seul.org
It's good that you tried the python-game list for a pygame question. But if pygame-users can't give a definitive answer then its even less likely that the tutor list will. Although you might need to allow a full 24 hours to get answers, email is not an instant delivery mechanism.
Looking at the code on this page lines 47 & 48 http://programarcadegames.com/python_examples/show_file.php?file=sprite_circle_movement.py
I didn't look at the code in that tutorial, but...
is there a way to do self.rect.x +*= some value* self.rect.y += some value
Yes, that's just normal Python syntax. It adds/multiplies the current value of self.rect with "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
But its unlikely to have the same effect as this since the above two lines are calculating a new value based on radius, angle, and centre rather than one based on the current values of self.rect
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.
I can't see your code but are you sure you are using self in all the appropriate places in your class based code? -- Alan G Author of the Learn to Program web site http://www.alan-g.me.uk/ http://www.amazon.com/author/alan_gauld Follow my photo-blog on Flickr at: http://www.flickr.com/photos/alangauldphotos _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
