/// <summary>
/// Revert this change from the specified state.
/// </summary>
/// <param name="state">The state from which to revert the change</param>
/// <exception cref="InvalidState">The change cannot be reverted from the state</exception>
public void revertFromState(State state)
{
// first revert all the removals
foreach (KeyValuePair <string, Dictionary <Guid, StateAspectRemove> > changeDict in this.removals)
{
StateAspectStore store = state.getStore(changeDict.Key);
foreach (KeyValuePair <Guid, StateAspectRemove> stateChange in changeDict.Value)
{
stateChange.Value.revertFromStore(store);
}
}
// then revert all the updates
foreach (KeyValuePair <string, Dictionary <Guid, StateAspectUpdate> > changeDict in this.updates)
{
StateAspectStore store = state.getStore(changeDict.Key);
foreach (KeyValuePair <Guid, StateAspectUpdate> stateChange in changeDict.Value)
{
stateChange.Value.revertFromStore(store);
}
}
// then revert all the additions
foreach (KeyValuePair <string, Dictionary <Guid, StateAspectAdd> > changeDict in this.additions)
{
StateAspectStore store = state.getStore(changeDict.Key);
foreach (KeyValuePair <Guid, StateAspectAdd> stateChange in changeDict.Value)
{
stateChange.Value.revertFromStore(store);
}
}
// finally do any necessary cross-store validation
}
public override void applyToStore(StateAspectStore store)
{
if ((store.aspects.ContainsKey(this.aspect_id)) || (store.removed_aspects.ContainsKey(this.aspect_id)))
{
throw new InvalidState("Cannot add aspect that already exists.");
}
store.aspects[this.aspect_id] = this.aspect.copy();
foreach (string tag in aspect.tags)
{
if (!store.tag_index.ContainsKey(tag))
{
store.tag_index[tag] = new HashSet <Guid>();
}
store.tag_index[tag].Add(this.aspect_id);
}
}
public override void revertFromStore(StateAspectStore store)
{
if ((store.aspects.ContainsKey(this.aspect_id)) || (!store.removed_aspects.ContainsKey(this.aspect_id)))
{
throw new InvalidState("Cannot revert removing aspect that hasn't been removed.");
}
store.aspects[this.aspect_id] = store.removed_aspects[this.aspect_id];
store.removed_aspects.Remove(this.aspect_id);
foreach (string tag in store.aspects[this.aspect_id].tags)
{
if (!store.tag_index.ContainsKey(tag))
{
store.tag_index[tag] = new HashSet <Guid>();
}
store.tag_index[tag].Add(this.aspect_id);
}
}
public StateAspectStore copy()
{
StateAspectStore store = new StateAspectStore();
foreach (KeyValuePair <Guid, StateAspect> aspect in this.aspects)
{
store.aspects[aspect.Key] = aspect.Value.copy();
}
foreach (KeyValuePair <string, HashSet <Guid> > tag in this.tag_index)
{
store.tag_index[tag.Key] = new HashSet <Guid>(tag.Value);
}
foreach (KeyValuePair <Guid, StateAspect> aspect in this.removed_aspects)
{
store.removed_aspects[aspect.Key] = aspect.Value.copy();
}
return(store);
}
public override void revertFromStore(StateAspectStore store)
{
if (!store.aspects.ContainsKey(this.aspect_id))
{
throw new InvalidState("Cannot revert adding aspect that doesn't exist.");
}
foreach (string tag in store.aspects[this.aspect_id].tags)
{
if ((!store.tag_index.ContainsKey(tag)) || (!store.tag_index[tag].Contains(this.aspect_id)))
{
// we shouldn't get here, but a missing tag shouldn't prevent a revert
continue;
}
store.tag_index[tag].Remove(this.aspect_id);
if (store.tag_index[tag].Count <= 0)
{
store.tag_index.Remove(tag);
}
}
store.aspects.Remove(this.aspect_id);
}
//quests
//characters
//inventory
public State()
{
this.notes = new StateAspectStore();
}
/// <summary> /// Revert this change from the specified store. /// </summary> /// <param name="store">The store from which to revert the change</param> /// <exception cref="InvalidState">The change cannot be reverted from the store</exception> public abstract void revertFromStore(StateAspectStore store);
/// <summary> /// Apply this change to the specified store. /// </summary> /// <param name="store">The store to which to apply the change</param> /// <exception cref="InvalidState">The change cannot be applied to the store</exception> public abstract void applyToStore(StateAspectStore store);
public override void revertFromStore(StateAspectStore store)
{
//TODO
}
public override void applyToStore(StateAspectStore store)
{
//TODO
}