#include <graphics.h>
#include <stdio.h>
#include <fcntl.h>
#include <io.h>

void advlogo(void)
{
 static FILE *stream;
 signed int cnt;
 char filename[30]="logo.bmp";
 unsigned char pbuf[256];
 unsigned long picsize;
 unsigned long info_start;
 unsigned int ix,iy,fx,fy;
 unsigned char cbyte,colour;

 unsigned int cx,cy;
 unsigned int ht=154;
 float scale=1;

 int handle;
 unsigned long songlength;

 cy=400;
 cx=320;

 handle = open(filename, O_RDONLY);
 songlength=filelength(handle);
 close(handle);


 if(songlength==99638)
 {
  stream = fopen(filename,"rb");
  cnt=0;
  do
   {
	getc(stream);
	cnt++;
   }
  while(cnt<1078);

  cnt=0;
  do
   {
	getc(stream);
	cnt++;
   }
  while(cnt<6400);

  iy=cy+ht/2;
  fy=cy-ht/2;

  do
  {
   ix=0;
   do
	{
	 cbyte=getc(stream);
	 if(cbyte==0) {colour=BLUE;}
	 if(cbyte!=0) {colour=LIGHTBLUE;}
	 if( ((ix>20) && (ix<620)) && ((iy>340) && (iy<472)) )
	 {
	  putpixel((ix/scale),(iy/scale),colour);
	 }
	 ix++;
	}
   while(ix<640);
   iy--;
  }
  while(iy>fy);
  fclose(stream);


 }

}

void c_box(unsigned int wait_time,unsigned int ccolor)
{
 unsigned int cx,cy;

 cx=320;
 cy=240;

 setcolor(ccolor);

 do
  {
   rectangle(320-cx,240-cy,320+cx,240+cy);
   if(cx>0) {cx--;}
   if(cy>0) {cy--;}

  }
 while((cx>0)||(cy>0));

 setcolor(YELLOW);
}

void e_box(unsigned int center_x, unsigned int center_y, unsigned int length, unsigned int height)
{
 unsigned int left, right;
 unsigned int top, bottom;
 unsigned int cx,cy;

 cx=0;
 cy=0;

 do
  {
   setcolor(WHITE);
   rectangle(center_x-cx,center_y-cy,center_x+cx,center_y+cy);
   setcolor(DARKGRAY);
   rectangle(center_x-cx+1,center_y-cy+1,center_x+cx-1,center_y+cy-1);
   setcolor(WHITE);
   rectangle(center_x-cx+2,center_y-cy+2,center_x+cx-2,center_y+cy-2);
   setcolor(BLUE);
   rectangle(center_x-cx+3,center_y-cy+3,center_x+cx-3,center_y+cy-3);

   if(cx<length/2)   {cx++;}
   if(cy<height/2)   {cy++;}
  }
 while((cx<length/2)||(cy<height/2));

 setcolor(YELLOW);
}

void gui(void)
{
 int gdriver = DETECT, gmode, errorcode;

 initgraph(&gdriver, &gmode, "");

 /* read result of initialization */
 errorcode = graphresult();

 if (errorcode != grOk)   /* an error occurred */
 {
   printf("Graphics error: %s\n", grapherrormsg(errorcode));
   printf("Press any key to halt:");
   getch();
   exit(1);             /* return with error code */
 }

 settextstyle(SMALL_FONT, HORIZ_DIR, 1);
 setcolor(YELLOW);
 setbkcolor(BLUE);
}

void fubar(unsigned char mode, unsigned int cur, unsigned int max)
{
 unsigned int cnt;
 unsigned int initx=320,inity=456;
 unsigned int length=580,height=16;
 unsigned int border=10;

 if(mode==1)
 {
  e_box(initx,inity,length+border,height+border);
 }

 cnt=((float)cur/(float)max)*length;
 line(initx-length/2+cnt,inity-height/2,initx-length/2+cnt,inity+height/2);
}



void close_gui(void)
{
 closegraph();
}