public void restoreUndo() {
if (!undoList.isEmpty()) {
UndoState undoState = undoList.removeLast();
GridCell cell = kenKenGrid.mCells.get(undoState.getCellNum());
cell.setUserValue(undoState.getUserValue());
cell.mPossibles = undoState.getPossibles();
if (undoState.getBatch()) restoreUndo();
}
if (undoList.isEmpty()) this.actions[2].setVisibility(View.INVISIBLE);
}
// called by newGameReady, restoreSaveGame and restartGameDialog
public void startFreshGrid(boolean newGame) {
undoList.clear();
clearSelectedButton();
this.topLayout.setBackgroundColor(BG_COLOURS[theme]);
this.kenKenGrid.setTheme(theme);
this.actions[1].setVisibility(View.VISIBLE);
this.actions[2].setVisibility(View.INVISIBLE);
titleContainer.setBackgroundResource(R.drawable.menu_button);
setButtonVisibility(kenKenGrid.mGridSize);
if (newGame) {
storeStats(true);
starttime = System.currentTimeMillis();
mTimerHandler.postDelayed(playTimer, 0);
}
}
public void saveUndo(GridCell cell, boolean batch) {
UndoState undoState =
new UndoState(cell.mCellNumber, cell.getUserValue(), cell.mPossibles, batch);
undoList.add(undoState);
this.actions[2].setVisibility(View.VISIBLE);
}