Author:  TheTutor

Introduces the concept of a swiveling camera.  This camera class mimics the FPS camera in Quake3, by rotating around the world +Y axis when moving the mouse left and right and rotating around the camera's +X axis when moving the mouse up and down.

Functions/Methods Used:  Direct3DCreate9(), assert(), cosf(), sinf()

IDirect3DDevice9::  D3DXMatrixPerspectiveFovLH(), D3DXMatrixLookAtLH(), DrawIndexedPrimitiveUP()