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Input Mechanisms (Touch (Benefits (Speed: faster in many operations when…

- - - - Non-alphanumeric keys are placed differently
      - Accented symbols needed for different scripts
      - Minor differences between keyboards of different locations
  - - - Need to figure out 3D coordinates of where the cursor is
      - How projectile goes to the destination
- - - - Position: location of finger in screen coordinates
      - deltaPosition: represent change in position since the previous frame; important for actions e.g. moving an object, resizing a window
      - tapCount: distinguish multi-tap gestures
      - phase: determine whether a particular touch has begun / ended
      - fingerID: relate Touches between frames