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#ifndef _CANVASBASE_H
#define _CANVASBASE_H
#include "scene.h"
// base class for a GL/DirectX Canvas
class CanvasBase {
//protected:
public:
Scene *scene; // the thing that handles drawing and such
bool need_refresh; // do we need to redraw the canvas?
int last_tick;
// create the window
virtual int create_window();
public:
bool full_screen; // use full screen?
int mspf; // ms per frame (ie, 1000/30 mspf instead of 30 fps)
bool animate;
int width;
int height;
CanvasBase(Scene *s, bool full_screen, int mspf);
virtual ~CanvasBase() {}
// initialize the window and GL stuff
virtual int init();
// resize the viewport and apply frustum transformation
virtual void resize();
// repaint what's on the canvas
virtual void draw();
// the event loop. handles events and animates the game
virtual int loop();
// tick if it spf seconds have elapsed since last tick
// returns 0 if ticked, else time remaining till tick.
virtual int tick();
// handle all events, and call proper handlers.
// returns 0 normally, else >0 on QUIT
virtual int handle_events();
// get current millisecond (arbitrary reference: used for change in millis)
virtual int get_ms();
// delay for specified number of milliseconds
virtual void delay(int ms);
};
#endif // canvas_base.h
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