boolean[][] grid = this.worldArea.getBackupGrid();
GenerateRandom rnd = new MersenneTwisterGenerateRandom();
for (int row = 0; row < this.worldArea.getRows(); row++) {
for (int col = 0; col < this.worldArea.getCols(); col++) {
grid[row][col] = rnd.nextBoolean();
}
}
this.worldArea.advanceBackupGrid();