feat: P1 core - seamless video switching, conditional branches, save/load

- VideoManager: A/B dual-buffered video with crossfade transitions and candidate preloading
- Engine: condition-based choice filtering, ChoiceSystem timer, resumeScene for save/load
- SceneManager: getCandidateUrls for preloading next scenes
- SaveSystem: Dexie.js IndexedDB multi-slot save/load
- ChoiceSystem: timed choices with countdown and auto-default on timeout
- GamePlayer: dual video elements with crossfade CSS
- ChoicePanel: timer progress bar and countdown text
- SaveLoadMenu: save/load UI component
- App.vue: menu trigger, dual video refs, save/load integration
- gameStore: timer state, saves list
- demo.json: conditional choice example (secret ending, requires trust >= 80)
- ROADMAP: mark P1 as completed
This commit is contained in:
2026-06-07 16:48:52 +08:00
parent 42181fe185
commit 937e45c203
16 changed files with 763 additions and 71 deletions

View File

@@ -66,6 +66,8 @@ export interface SaveData {
export type EngineEvent =
| 'sceneChange'
| 'choiceRequest'
| 'choiceTimer'
| 'gameEnd'
| 'qteTrigger'
| 'videoEnd'
| 'choiceTimeout'