It's totally possible to create new cinematic movie events and I still want to do them (currently busy IRL and on other mods at the moment). IIRC, here's what could potentially be done - there's probably more types:
- Faction / Culture Intros (Scripting)
- Objective(s) Completed (Success or Failure), including Faction / Culture Endings (Victory or Defeat)
- Any dilemma (multiple-choice event window button options) outcome.
- Any event outcome - you can set new videos to play when there is an outcome or reward for a:
- Political Event (Trigger + Outcome)
- Political Intrigue (Trigger + Outcome)
- Natural Disaster
- Unit Recruited
- Agent Recruited
- Building Constructed
- Settlement Captured / Lost
- Lots more...
There are two problems with this kind of mod which don't really inspire me to spend lots of time creating + implementing new cutscenes though:
- Audio Modding - Thanks to CA using Audiokinetic Wwise for their audio engine in Rome II onwards, it is impossible for us to implement new audio into the game - it used to be possible in prior TW games such as Shogun II, where it was simply a text file with mp3 or wav audio files. It is possible to replace existing movies to get new audio, but that's destructive (e.g. if I replace the "Civil War" movie + audio with my own, people will view the wrong movie + audio when a Civil War actually occurs at a later time). So, at the moment, I can't have new audio play for a new movie ingame automatically without replacing existing movies - there might be some way, but it'd require someone more knowledgeable at programming than I, who could implement Caligula's idea of logging when a movie is played and have the soundboard play it automatically (check a few pages back on this thread to find it). That's why I made use of soundboards with hotkeys instead, which was the best non-destructive solution I could think of, but imperfect (a lot of people don't like having to trigger the audio manually with the soundboards or are confused by them).
- Event Payload System - Using Total War's event payload system causes any event outcome to play on the start of the next turn only (hence "The consequences of your actions will soon be revealed..." message is shown after making a choice for political events etc). This is why it's better to trigger movies through scripts and (I think) through dilemmas, as the outcome / reward is given immediately, therefore a video will play immediately as well.