Cocos2d's Tips
画面を縦向きにする
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
	return UIInterfaceOrientationIsLandscape(interfaceOrientation);
}
UIInterfaceOrientationIsLandscapeをUIInterfaceOrientationIsPortraitに変更
return UIInterfaceOrientationIsPortrait(interfaceOrientation);
