#include "FxEngine.h"

#include <libprof.h>
#include "coord.h"
#include <stdbool.h>
#include <gint/keyboard.h>
#include <gint/clock.h>
#include <gint/display.h>

FE_position FE_user={0,0,0};
double FE_dh,FE_dv,FE_roulis;

static uint32_t frame_interval=0, frame_interval_min=1000001, frame_interval_max=1; // in milliseconds
static bool loaded_before=false;

static double dh_vel=0.05;
static double dv_vel=0.05;

static void FE_move() // call at each frame
{
	key_event_t event;
	while (true)
	{
		event=pollevent();
		if (event.type&KEYEV_DOWN)
		{
			if (event.key==KEY_LEFT)
				FE_dh-=dh_vel;
			if (event.key==KEY_RIGHT)
				FE_dh+=dh_vel;
			if (event.key==KEY_UP)
				FE_dv+=dv_vel;
			if (event.key==KEY_DOWN)
				FE_dv-=dv_vel;
			FE_dh=FE_modulo_2pi(FE_dh);
			FE_dv=FE_modulo_2pi(FE_dv);
		}
		if (event.type==KEYEV_NONE)
			break;
	}
	
}

void FE_new_frame(void)
{
	if (loaded_before)
	{
		prof_leave(0);
		frame_interval=prof_time(0);
		if (frame_interval<frame_interval_min)
			frame_interval_min=frame_interval;
		if (frame_interval>frame_interval_max)
			frame_interval_max=frame_interval;
	}
	else
	{
		prof_init(1,0);
		loaded_before=true;
	}
	prof_clear(0);
	prof_enter(0);

	FE_move(); // Not implemented yet !
	FE_set_matrice();
	FE_zbuffer_clear(); 
	
	dupdate();
	dclear(C_WHITE);
}


static char fps_history[15];
char* FE_get_fps_history()
{
	sprintf(fps_history,"%d/%d/%d",FE_get_fps_min(),FE_get_fps_current(),FE_get_fps_max());
	return fps_history;
}


static const uint32_t unite=1000000; 
unsigned int FE_get_fps_current(void)
{return unite/frame_interval;}

unsigned int FE_get_fps_min(void)
{return unite/frame_interval_max;}

unsigned int FE_get_fps_max(void)
{return unite/frame_interval_min;}