Fix the bug when checking if a point is contained by the path.
Add OIMPopView class.
Update for ARC.
Add Freetype library for rendering text in OpenGL context.
Add Freetype library for rendering text in OpenGL context.
Add Freetype library for rendering text in OpenGL context.
Add resetForwardPath & resetAll methods.
Add -(void)reset method. The person won't be drawn until it has a start position.
Add property 'typeString'. Update the copyWithZone method.
Fix the NSString constant warnings. Update the path-finding method. Update the searchTheProjectedPositionOfRoom method. Add new query result key (rect key)
Add removeTargetFromCurrentPosition method.
Fix the NSString constants warning.
Add tipsLabel, reset button and start button.
Fix a connection bug.
ViewController update for demo.
Project update.