import processing.net.*;
Server myServer = new Server( this, 6666 );
int unitSize = 8;
int ux;
int uy;
int [][] unit;

void setup() {
  size( 800, 800 );
  ux = width / unitSize;
  uy = height / unitSize;
  unit = new int [ux][uy];
  for ( int i=0; i<ux; i++ ) {
    for ( int j=0; j<uy; j++ ) {
      unit[i][j] = 0;
    }
  }
}

color getColorFromID( int id ) {
  return color(getR(id), getG(id), getB(id));
}

void draw() {
  stroke( 0 ) ;
  fill( 255 ) ;
  for ( int x=0; x<ux; x++ ) {
    for ( int y=0; y<uy; y++ ) {
      if ( unit[x][y] > 0 ) {
        if ( unit[x][y] == 1 ) {
          fill( 255, 0, 0 );
        } 
        else if ( unit[x][y] == 2 ) {
          fill( 0, 0, 255 );
        }
      } 
      else {
        fill( 255 );
      }
      rect( x*unitSize, y*unitSize, unitSize, unitSize );
    }
  }
}

void mousePressed() {
  int x = mouseX / unitSize;
  int y = mouseY / unitSize;
  int id = 1;
  if ( mouseButton == LEFT ) {
    id = 1;
  } 
  else if ( mouseButton == RIGHT ) {
    id = 2;
  }
  unit[x][y] = id;
  for ( int i=-1; i<=1; i++ ) {
    for ( int j=-1; j<=1; j++ ) {
      if ( i==0 && j==0 ) {
      } else {
        isHit( id, x, y, i, j );
      }
    }
  }
}

boolean isHit( int id, int x, int y, int dx, int dy ) {
  x += dx;
  y += dy;
  if ( x < 0 || x >= ux || y < 0 || y >= uy ) { 
    return false;
  }
  if ( unit[x][y] == 0 ) { 
    return false;
  }
  if ( unit[x][y] == id ) { 
    return true;
  }
  boolean bRet = isHit( id, x, y, dx, dy );
  if ( bRet == true ) {
    unit[x][y] = id;
  }
  return bRet;
}

int getR(int i) {
  int ret = 0;
  if (i < 128) {
    ret = 0;
  }
  else if (i > 127 && i < 191) {
    ret = (i-127)*4;
  }
  else if (i > 190) {
    ret = 255;
  }
  return ret;
}

int getG(int i) {
  int ret = 0;
  if (i >= 64 && i <= 191) {
    ret = 255;
  }
  else if (i < 64) {
    ret =  i * 4;
  }
  else {
    ret = 256-(i-191)*4;
  }
  return ret;
}

int getB(int i) {
  int ret = 0;
  if (i <= 64) {
    ret = 255;
  }
  else if (i > 64 && i < 127) {
    ret = 255-(i-64)*4;
  }
  else if (i >= 127) {
    ret = 0;
  }
  return ret;
}