Gaining some FPS in your game

So, you want to gain some FPS in your game.
Here is the checklist:

• Optimize Chipmunk. Follow Skorche's (the author of Chipmunk) tips
• Compile your code with Thumb support disabled
  
• And from cocos2d v0.7 onwards you can use the Fast Director

To enable the Fast Director you need to call:

[Director useFastDirector];

before calling any other Director's method.

Fast Director pros/cons:

• Calls mainLoop as fast as it can
• But no faster than 60 FPS (iPhone limitation)
• Doesn't support IntervalAnimation yet, so you can't force it to, let's say 30 FPS.

For example, the ChipmunkDemo example is running 10 FPS faster using the Fast Director.


In conclusion:

• If don't need a lot of speed, and you are OK with 30 FPS, then use the old Director since it supports the setIntervalAnimation method.
• But if you want all the possible FPS then use the Fast Director
  

Remember: The more FPS, the more battery is consumed.

For more information regarding the FastDirector and how it was implemented see issue #145

[Edit]: Fixed grammar errors, added 'in conclusion'