ui: add main menu scene and interactive button widget

- Implement MainMenuScene with a "Start Game" button that pushes the WorldScene.
- Extend Button class with background/foreground, hover detection, and size queries.
- Add virtual width/height and event handlers to Widget base class.
- Update WorldUIManager to propagate mouse move events.
- Adjust Window mouse mode based on game running state.
This commit is contained in:
2026-07-13 10:38:30 +08:00
parent 8bbed7b7b9
commit 01c9f61d1c
20 changed files with 453 additions and 18 deletions

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