gistfile1.ec

import "ecere"

class TriApp : Application
{
   ConsoleFile f { };
   void Main()
   {
      int w = 50;
      int h = 20;
      bool filled = false, inverted = false;
      int x, y;
      int i;
      bool valid = true;

      for(i = 1; i<argc; i++)
      {
         char * arg = argv[i];
         if(arg[0] == '-')
         {
            if(!strcmp(arg + 1, "filled")) filled = true;
            else if(!strcmp(arg + 1, "invert")) inverted = true;
            else if(!strcmp(arg+1, "w") || !strcmp(arg+1, "h"))
            {
               if(i + 1 < argc && argv[i+1][0] != '-')
               {
                  int v = atoi(argv[i+1]);
                  if(v < 1) valid = false;
                  else if(!strcmp(arg+1, "w"))
                     w = v;
                  else
                     h = v;
                  i++;
               }
               else
                  valid = false;
            }
         }
         else
            valid = false;
      }
      if(!valid)
         printf($"Syntax:\n   asciiTriangle [-w <width>] [-h <height>] [-invert] [-filled]\n");
      else
      {
         for(y = 0; y < h; y++)
         {
            double yc = (inverted ? h-1-y : y) + 0.5;
            double l = sqrt((double)(w * w + h * h) * (yc * yc) / (h * h) - (yc * yc));

            if(filled || y == h-1)
            {
               for(x = 0; x <= l; x++)
                  f.Putc('*');
            }
            else
            {
               f.Putc('*');
               if(l > 1)
               {
                  for(x = 1; x <= l-1; x++)
                     f.Putc(' ');
                  f.Putc('*');
               }
            }
            f.Putc('\n');
         }
      }
      system("pause");
   }
}