#ifndef _CORE_H
#define _CORE_H

// Abstract API definition of RAVEN Core.

#include "common.h"
#include "keymap.h"

using namespace std;

// video and window mode flags
#define RAVEN_FULLSCREEN	0x1
#define RAVEN_RESIZABLE		0x2
#define RAVEN_NODEPTHBUFFER 0x4

// video types.  I should really put these in an enum.
#define RAVEN_OPENGL		1
#define RAVEN_DIRECT3D9		2

class Core
{
protected:
	char *title;
	unsigned int width,height;
	int colorsize,depthsize;
	int flags;

	RAVEN_key_map *keymap;
	bool keys[RAVEN_KEY_CODE_COUNT];
	bool buttons[8];

	bool isappterm;
	bool isresized;

	double mousex,mousey;

	int coretype;

	// main constructor for use with CoreFactory
	friend class CoreFactory;
	Core(char *title,unsigned int width,unsigned int height,int colorsize,int depthsize,int flags);
public:
	virtual ~Core();

	virtual bool Start()=0; // initialize API for use
	virtual bool Stop()=0;  // deinitialize API before deleting

	virtual unsigned int GetTitleLength(); // get the title length so we know how long the buffer we feed GetTitle must be
	virtual void GetTitle(char *title);    // copy the title in to a user buffer
	
	virtual unsigned int GetWidth();  // get the width of the window
	virtual unsigned int GetHeight(); // get the height of the window
	
	virtual int GetColorBufferDepth(); // get the color buffer depth (16, 24, or 32)
	virtual int GetDepthBufferDepth(); // get the depth buffer size  (16, 24, or 32)

	virtual int GetFlags();				// get the whole mess of flags
	virtual bool GetFlag(int flag);		// get the boolean truth of a flag
	
	virtual bool Update()=0;			// update; this handles events and updates the display

	virtual bool KeyDown(RAVEN_KEY_CODE key); // if the key of the keycode given is held down it returns true
	virtual bool ButtonDown(int button);      // if the mouse button of the button index is held down it returns true

	virtual bool IsAppTerm(); // true if an app term event is received (hotkeys like alt+f4 pressed or [X] clicked etc.)
	virtual bool IsResized(); // true if the window was resized.  returns to false after returning true ONCE.

	virtual double GetMouseX(); // returns a normalized floating point MouseX value.
	virtual double GetMouseY(); // returns a normalized floating point MouseY value.

	virtual int GetType();      // is this an OpenGL or Direct3D context?
};

#endif