import java.util.*;

class FloodFill extends EzGame {
  
  boolean fillMode = false;
  
  void keyPress(int key) {
    if (key == 'f') fillMode = !fillMode;
  }
  
  void start() {
    fillBoard(green);
  }
  
  void fill(int row, int col) {
    if ((row < 0) || (row >= rows) || (col < 0) || (col >= cols)) return;
    if (board[row][col] != green) return;
    board[row][col] = yellow;
    fill(row-1, col);
    fill(row+1, col);
    fill(row, col-1);
    fill(row, col+1);
  }
  
  void mouseClick(int row, int col) {
    if (fillMode == true)
      fill(row, col);
    else
      board[row][col] = blue;
  }
  
  public static void main(String[] args) { launch(20, 20, 500, 500); }
}