private bool TryGetCheckpoint(LogParam logParam, bool isLatest, out GameStateCheckpoint checkpoint)
{
ulong nodeHistoryHash;
if (isLatest)
{
nodeHistoryHash = gameState.nodeHistory.Hash;
}
else
{
var backNodeIndex = gameState.nodeHistory.FindLastIndex(x => x.Equals(logParam.nodeHistoryEntry));
nodeHistoryHash = gameState.nodeHistory.GetHashULong(0, backNodeIndex + 1, logParam.dialogueIndex + 1);
}
var entry = checkpointManager.GetReached(nodeHistoryHash, logParam.nodeHistoryEntry.Key,
logParam.dialogueIndex);
if (entry is GameStateCheckpoint _checkpoint)
{
checkpoint = _checkpoint;
return(true);
}
else
{
checkpoint = null;
return(false);
}
}
private void DialogueSaveCheckpoint(bool firstEntryOfNode, bool dialogueStepped, out bool isReached,
out bool isReachedAnyHistory)
{
if (!firstEntryOfNode && dialogueStepped)
{
stepNumFromLastCheckpoint++;
}
var entry = checkpointManager.GetReached(nodeHistory, currentIndex);
isReached = entry != null;
isReachedAnyHistory = checkpointManager.IsReachedAnyHistory(currentNode.name, currentIndex);
if (entry == null)
{
// Tell CheckpointManager that a new dialogue entry has been reached
checkpointManager.SetReached(nodeHistory, currentIndex, GetRestoreEntry());
}
// Change states after creating or restoring from checkpoint
if (shouldSaveCheckpoint)
{
stepNumFromLastCheckpoint = 0;
}
if (entry != null)
{
this.RuntimeAssert(stepNumFromLastCheckpoint == entry.stepNumFromLastCheckpoint,
$"stepNumFromLastCheckpoint mismatch: {stepNumFromLastCheckpoint} {entry.stepNumFromLastCheckpoint}. Try to clear save data.");
this.RuntimeAssert(restrainCheckpointNum == entry.restrainCheckpointNum,
$"restrainCheckpointNum mismatch: {restrainCheckpointNum} {entry.restrainCheckpointNum}. Try to clear save data.");
}
if (checkpointRestrained)
{
restrainCheckpointNum--;
}
// As the action for this dialogue will be re-run, it's fine to just reset forceCheckpoint to false
forceCheckpoint = false;
}
