Touch inputs Angry-bird style

Hi,

I'm new to Unity5, and I want to know the best practices for creating touch functionalities to my 2D mobile game.

I'm trying to make an "Angry Birds" game, and I'll need to have 4 types of touch functionalities.

1. Drag the bird

2. Click on object (the planks or the base to be destroyed) to view its life

3. Drag the camera

4. Two finger zoom on camera

Basically, I'm trying to figure out the best way to do this. I want to disable the camera drag when its already dragging the bird, and i also want to be able to drag the camera EVEN if my TouchPhase.Begin starts by touching the plank.

I thought about routing the inputs from an InputController, is that a good choice?

Please help!