Imports
- github.com/hajimehoshi/bitmapfont/v2
- github.com/hajimehoshi/ebiten/v2
- github.com/hajimehoshi/ebiten/v2/ebitenutil
- github.com/hajimehoshi/ebiten/v2/inpututil
- github.com/ichibankunio/fui
- github.com/ichibankunio/fvec/vec2
- github.com/ichibankunio/fvec/vec3