import java.applet.*; 
import java.awt.*; 
import java.awt.image.*; 
import java.awt.event.*; 
import java.io.*; 
import java.net.*; 
import java.text.*; 
import java.util.*; 
import java.util.zip.*; 

public class tilers extends BApplet {
// Duelling Tilers
// Kevan Davis, 8/5/04

int wipenext = 1;
int terrorlevel = 1;
int[][] confidence = new int[201][201];

void setup() 
{ 
  size(200,200); 
  noBackground(); 
} 
 
void loop() 
{ 
  int off = 0; int rX = 0; int rY = 0; int selfcol = 0; int unease = 0;

  if (wipenext == 1)
  {
    wipenext = 0;
    for (int x=0; x<width; x++)
    {
      for (int y=0; y<height; y++)
      {
        if ((int)random(2)==1) { setPixel(x, y, color(255,255,255)); }
        else { setPixel(x, y, color(0,0,0)); }
      }
    }
  }

  for (int i = 0; i < 30000; i++) 
  { 
    unease = 0;
    rX = (int)random(width); 
    rY = (int)random(height);

    if (confidence[rX][rY] > 0)
    { confidence[rX][rY]--; }
    else if (rX<width && rY<height) // Bug with Proce55ing's random? I get +1, sometimes.
    {
      selfcol = getPixel(rX, rY);
      if (rX<width-1) { if (selfcol == getPixel(rX+1, rY)) { unease = unease + 1; } }
      if (rX>0) { if (selfcol == getPixel(rX-1, rY)) { unease = unease + 1; } }
      if (rY<height-1) { if (selfcol == getPixel(rX, rY+1)) { unease = unease + 1; } }
      if (rY>0) { if (selfcol == getPixel(rX, rY-1)) { unease = unease + 1; } }

      if (unease > terrorlevel)
      {
//        confidence[rX][rY] = confidence[rX][rY] + 10;
        if (selfcol == color(0,0,0))
        { setPixel(rX, rY, color(255,255,255)); }
        else
        { setPixel(rX, rY, color(0,0,0)); }
      }
    } 
  }
} 

void keyPressed() 
{ 
  if(key == ' ')
  {
    wipenext = 1;
  } 
  if(key == 'z')
  {
    terrorlevel = 1 - terrorlevel;
  } 
} 

}