/*
MainControl.h
Written by Matthew Fisher

MainControl includes everything that changes often between applications, such as what meshes to load,
and also determines what is rendered each frame.

This specific mesh class demonstates many things.  Firstly, it uses a CreateCylinder function to render
a bendy tube following an arbitrary function.  Secondly, it demonstrates using multiple cameras in one scene.
Thirdly, it uses an Indicator class to simplifying drawing spheres, cylinders, and cameras.  The Indicator class
draws the other camera (the one you're not looking through) and the position, normal, tangent, and torsion vectors
along the spring curve mesh.  It also demonstrates capturing the screen (press P.)
*/

class MainControl {
public:
    ~MainControl() {FreeMemory();}
    void FreeMemory();

    void InitCentralMesh(GraphicsDevice &GD);           //initalizes the shape ring

    void ReInit(GraphicsDevice &GD, WindowManager &WM); //called after we lose focus, telling us to restore
                                                        //our textures and other data that may have been list

    void Init(GraphicsDevice &GD, WindowManager &WM);   //called only one at the beginning of our application
    void Render(GraphicsDevice &GD, WindowManager &WM); //called each frame

private:
    float CurvePos;             //the position along the helix curve we're currently looking at
    int CurCamera;              //the camera we're looking through
    Indicator Ind;              //the indicator class, used to easily draw the camera and curve vectors
    Mesh CentralMesh;           //the mesh we're looking at
    Camera C[2];                //the two cameras we use
    MatrixController MC[2];     //the world/view/perspective matrices (one for each camera)
    float Time;                 //the current time, in seconds
};