title: Pygame triangle collision detection
body: <p>I'm trying to do a Triangle collision detection for my game in Pygame.
  I succesfully did the collision detection for all my rectangles via the </p>
  
  <pre><code>rect.collidelist(rectlist)
  </code></pre>
  
  <p>But now that I have implemented the Poligons (or Triangles more precisely), I can't do any good collisions. The collisions of the Triangles are squares, so I don't know what to do now..</p>