via hutonggames.com
If you are using PlayMaker plugin for Unity3D and are struggling with touch input in your game built with mouse events, I made a FSM to convert touch input into mouse input in my project so that it will work on my Mac and iPhone at the same time. Just drop the prefab into your scene, or create a GameObject, add FSM, and paste the template in the .asset file.
Download link: http://ge.tt/57U7eII
Basically, when a user touches the screen (Touch Began), this FSM will send a MOUSE DOWN event to the object touched, and send a MOUSE UP event to the object touched when the user lifts his/her finger (Touch Ended).