KeyState.h

#ifndef _KEYSTATE_H_
#define _KEYSTATE_H_

#include "PaulMath.h"
#include "GL/glfw.h"

class KeyState
{
public:
    //constructs and destructs,
    KeyState(void)  { keys = new BitSet(GLFW_KEY_LAST); keysState = new BitSet(GLFW_KEY_LAST); }
    ~KeyState(void) { delete keys; delete keysState; }

    //call this every frame
    void Update()
    {
        for(int i = 0; i < GLFW_KEY_LAST; ++i)
        {
            //update keys
            if(!(*keysState)[i] && !(*keys)[i])
            {
                if(glfwGetKey(i))   keys->SetBit(i);
            }
            else    keys->ClearBit(i);
            //update states
            if(glfwGetKey(i))   keysState->SetBit(i);
            else                keysState->ClearBit(i);
        }
    }
    //for getting a key
    bool GetKey(int key){ return (*keys)[key]; }

private:
    //bitset arrays via pointers (we have to do it this way)
    BitSet * keys;
    BitSet * keysState;
};

#endif