/* `draw' by shudder <shudder@gbg.bg> */


#include <stdio.h>
#include <unistd.h>
#include <vga.h>

int vga_init (void);
int vga_setmode (int mode);
int vga_getdefaultmode (void);
int vga_setcolor (int color);
int vga_drawpixel (int x, int y);
int vga_getch ();
int vga_hasmode (int mode);

int
main ()
{
  int x = 0;
  int y = 0;
  int mychar;
  int mode;
  int color = 9;

  printf
    ("Control keys: \033[1mE\033[0m - erase screen; \033[1mQ\033[0m - quit\n");
  printf ("                             \033[1mI\033[0m - up\n");
  printf ("                    left - \033[1mJ   K\033[0m - right\n");
  printf ("                      down - \033[1mM\033[0m\n");
  printf ("Color keys: ");
  printf ("\033[1;34m1 \033[1;32m2 \033[1;36m3 \033[1;31m4 ");
  printf ("\033[1;35m5 \033[1;33m6 \033[1;39m7\033[0m\n");
  printf ("Modes:\n");
  printf ("1 - \033[1m320\033[0mx\033[1m200\033[0mx\033[1m16\033[0m\n");
  printf ("2 - \033[1m640\033[0mx\033[1m200\033[0mx\033[1m16\033[0m\n");
  printf ("3 - \033[1m640\033[0mx\033[1m350\033[0mx\033[1m16\033[0m\n");
  printf ("4 - \033[1m640\033[0mx\033[1m480\033[0mx\033[1m16\033[0m\n");
  printf ("5 - \033[1m320\033[0mx\033[1m200\033[0mx\033[1m256\033[0m\n");
  printf ("6 - \033[1m320\033[0mx\033[1m240\033[0mx\033[1m256\033[0m\n");
  printf ("7 - \033[1m320\033[0mx\033[1m400\033[0mx\033[1m256\033[0m\n");
  printf ("8 - \033[1m360\033[0mx\033[1m480\033[0mx\033[1m256\033[0m\n");
  printf ("9 - \033[1m640\033[0mx\033[1m480\033[0mx\033[1m2\033[0m\n");
  printf ("10 - \033[1m640\033[0mx\033[1m480\033[0mx\033[1m256\033[0m\n");
  printf ("11 - \033[1m800\033[0mx\033[1m600\033[0mx\033[1m256\033[0m\n");
  printf ("12 - \033[1m1024\033[0mx\033[1m768\033[0mx\033[1m256\033[0m\n");
  printf ("13 - \033[1m1280\033[0mx\033[1m1024\033[0mx\033[1m256\033[0m\n");
  printf ("Enter mode number: ");
  scanf ("%d", &mode);
  printf ("Probing mode...\n");
  if (mode < 1 || mode > 13)
    {
      printf ("Invalid mode!\n");
      exit (1);
    }

  if (!vga_hasmode (mode))
    {
      printf ("\033[1;31mThe selected mode is not supported\n");
      printf ("BURNING VIDEO ADAPTER AFTER 5 SECONDS...\033[0m\n");
      sleep (5);
      exit (1);
    }

  vga_init ();
  vga_setmode (mode);
  vga_setcolor (color);

  for (;;)
    {
      mychar = vga_getch ();
/*
105 - I
106 - J
107 - K
109 - M
113 - Q
101 - E
99  - C
*/
      if (mychar == 105)
	y--;
      if (mychar == 106)
	x--;
      if (mychar == 107)
	x++;
      if (mychar == 109)
	y++;
      if (mychar == 113)
	return 0;
      if (mychar == 101)
	vga_clear ();
      if (mychar == 48)
	vga_setcolor (0);

      if (mychar > 48 && mychar < 56)
	vga_setcolor (mychar - 40);

      vga_drawpixel (x, y);
    }
}

/*  Making:  gcc -o draw draw.c -lvga */