public void ConstructStoryLines(StoryViewModel storyModel, StoryLineViewModel parent, IScene startScene, int depth, IStorylinePositioner storylineAdder)
{
IScene currentScene = startScene;
StoryLineViewModel lineScenes = new StoryLineViewModel(storyModel, parent);
lineScenes.Depth = depth;
storylineAdder.Position(lineScenes);
int padding = depth;
while (currentScene != null)
{
padding++;
lineScenes.Add(new SceneViewModel(currentScene));
InteractiveScene interactiveScene = currentScene as InteractiveScene;
if (null != interactiveScene && interactiveScene.Type == SceneType.Interactive)
{
foreach (IScene possibleStartScene in interactiveScene.PossibleScenes)
{
ConstructStoryLines(storyModel, lineScenes, possibleStartScene, padding, storylineAdder);
}
break;
}
else
{
currentScene = currentScene.FollowingScene;
}
}
lineScenes.CollectionChanged += lineScenes_CollectionChanged;
}
private StoryLineViewModel AddStoryline(int index, StoryLineViewModel childStorylineModel)
{
if (index < storyLines.Count - 1)
{
storyLines.Insert(index + 1, childStorylineModel);
}
else
{
storyLines.Add(childStorylineModel);
}
return childStorylineModel;
}
internal ObservableCollection<DataModel.Model.IScene> GetScenes(StoryLineViewModel storylineModel)
{
ObservableCollection<IScene> scenes = new ObservableCollection<IScene>();
if (storylineModel != null)
{
foreach (SceneViewModel sceneModel in storylineModel)
{
scenes.Add(sceneModel.CurrentScene);
}
}
return scenes;
}
public void Position(StoryLineViewModel lineScenes)
{
AddStoryline(index, lineScenes);
}
public void Position(StoryLineViewModel lineScenes)
{
storylines.Add(lineScenes);
}
internal StoryLineViewModel CreateStoryLine(StoryViewModel storyViewModel)
{
StoryLineViewModel storylineModel = new StoryLineViewModel(storyViewModel, null);
storylineModel.CollectionChanged += lineScenes_CollectionChanged;
return storylineModel;
}
private static InteractiveScene GetPredecessor(int index, StoryLineViewModel storylineModel)
{
if ((index == 0 && storylineModel.Parent == null) || index > storylineModel.Count)
{
return null;
}
InteractiveScene oldPredecessor = null;
if (index == 0 && storylineModel.Parent != null)
{
StoryLineViewModel parentStoryline = storylineModel.Parent;
SceneViewModel parentSceneModel = parentStoryline.Last();
if (parentSceneModel.CurrentScene is InteractiveScene)
{
oldPredecessor = parentSceneModel.CurrentScene as InteractiveScene;
}
}
else{
SceneViewModel lastExistingSceneModel = storylineModel[index - 1];
oldPredecessor = lastExistingSceneModel.CurrentScene as InteractiveScene;
}
return oldPredecessor;
}
private InteractiveScene GetSuccessor(int addedSceneIndex, StoryLineViewModel storylineModel)
{
int successorIndex = addedSceneIndex + 1;
if (successorIndex < storylineModel.Count)
{
SceneViewModel successorSceneModel = storylineModel[successorIndex];
return successorSceneModel.CurrentScene as InteractiveScene;
}
return null;
}
public void RefreshScenes(StoryLineViewModel storyline, bool refreshSelected = true)
{
ScenesViewModel = new ObservableCollection<SceneViewModel>(BuildPath(storyline));
SceneViewModel lastSceneViewModel = null;
lastSceneViewModel = storyline.LastOrDefault();
if (null != lastSceneViewModel)
{
Scenes = new ObservableCollection<IScene>(BuildPath(Story.StartScene, lastSceneViewModel.CurrentScene));
}
if (Scenes.Count > 0)
{
CurrentScene = Scenes[0];
if (refreshSelected)
{
SelectedSceneViewModel = storyline.FirstOrDefault();
SelectedSceneViewModel = null;
}
}
}
private int FindStoryLineIndex(StoryLineViewModel storyline)
{
for (int i = 0; i < StoryLines.Count; i++)
{
if (StoryLines[i] == storyline)
{
return i;
}
}
return -1;
}
internal void AddStoryline(StoryLineViewModel storyline)
{
if (storyline.Count > 0)
{
SceneViewModel lastScene = storyline.Last();
InteractiveScene interactiveScene;
if (lastScene.CurrentScene is InteractiveScene)
{
interactiveScene = lastScene.CurrentScene as InteractiveScene;
if (null != interactiveScene)
{
interactiveScene.Type = SceneType.Interactive;
}
}
else
{
interactiveScene = new InteractiveScene(lastScene.CurrentScene.LibraryItem);
storyline.Remove(lastScene);
storyline.Add(CreateSceneViewModel(interactiveScene));
}
int index = FindStoryLineIndex(storyline);
if (index > -1)
{
IStorylinePositioner positioner = new StorylineInserter(StoryLines, index);
_builder.ConstructStoryLines(this, storyline, null, storyline.Depth + storyline.Count, positioner);
SelectStoryline(StoryLines[index + 1]);
}
}
}
private static bool isFavorited(StoryLineViewModel targetStoryLine, SceneViewModel scene)
{
ObservableCollection<SceneTag> favoriteTags = targetStoryLine.StoryModel.FavoriteTags;
if (favoriteTags.Count == 0)
{
return false;
}
foreach (SceneTag sceneTag in scene.Tags)
{
foreach (SceneTag favoriteTag in favoriteTags)
{
if (favoriteTag.Content.Equals(sceneTag.Content))
{
return true;
}
}
}
return false;
}
private static IEnumerable<SceneViewModel> ReverseAndFilter(StoryLineViewModel targetStoryLine)
{
return (from scene in targetStoryLine
where (!scene.IsBonus || (scene.IsBonus && isFavorited(targetStoryLine, scene)))
select scene).Reverse();
}
private IEnumerable<SceneViewModel> BuildPath(StoryLineViewModel targetStoryLine)
{
List<SceneViewModel> result = new List<SceneViewModel>();
result.AddRange(ReverseAndFilter(targetStoryLine));
StoryLineViewModel parent = targetStoryLine;
while (null != (parent = parent.Parent))
{
result.AddRange(ReverseAndFilter(parent));
}
result.Reverse();
return result;
}
internal void SelectStoryline(StoryLineViewModel storyline)
{
CurrentStoryline = storyline;
RefreshScenes(storyline);
}
private void HandleReorder(StoryViewModel storyModel, StoryLineViewModel storyline)
{
//storyModel.Story = storyModel.Story;
storyModel.RefreshScenes(storyline);
}
private void UpdateIsCurrent(StoryLineViewModel storyline)
{
if (storyline != null)
{
//This value is dummy, just to trigger property notification
storyline.IsCurrent = true;
}
}