Allow Sprite to be a circle

[straker]

If radius is passed to sprite, draw circle instead of square.

Sprite({
  x: 0,
  y: 0,
  color: 'red',
  radius: 5
});

Additional this should allow collision detection between circle vs circle and circle vs square. Would also need to look through the code to see what other things may break / need to be updated to handle circles.

[crhallberg]

Would you expect x and y to be in the center of the circle or in the corner - which would allow rects and circles with the same x and y to occupy the same space?

This could be done by setting a default anchor of 0.5 when radius is set.

[straker]

Ya. Ideally the sprites draw position would be the same regardless if it's a square or circle. A centered anchor property would draw both centered around the x/y position.