79 lines
1.4 KiB
Go
79 lines
1.4 KiB
Go
package splashmenu
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import (
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"cosmos/diego/groovy"
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"image/color"
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"log"
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"github.com/hajimehoshi/ebiten/v2"
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"github.com/hajimehoshi/ebiten/v2/examples/resources/fonts"
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"github.com/hajimehoshi/ebiten/v2/text"
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"golang.org/x/image/font"
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"golang.org/x/image/font/opentype"
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)
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var (
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splashFont font.Face
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)
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func init() {
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tt, err := opentype.Parse(fonts.PressStart2P_ttf)
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if err != nil {
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log.Fatal(err)
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}
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const dpi = 72
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splashFont, err = opentype.NewFace(tt, &opentype.FaceOptions{
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Size: 12,
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DPI: dpi,
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Hinting: font.HintingVertical,
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})
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if err != nil {
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log.Fatal(err)
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}
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}
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type Splash struct {
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bgcolor color.RGBA
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increment int
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events map[groovy.SceneEvent]func()
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}
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// GetSceneEvents implements groovy.Scene.
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func (*Splash) GetSceneEvents() []groovy.SceneEvent {
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return nil
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}
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func NewSplash() Splash {
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return Splash{
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bgcolor: color.RGBA{0xFF, 0xFF, 0xFF, 0xFF},
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events: make(map[groovy.SceneEvent]func()),
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}
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}
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func (s *Splash) Draw(screen *ebiten.Image) {
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screen.Fill(s.bgcolor)
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text.Draw(screen, "splash", splashFont, 40, 40, color.White)
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}
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func (s *Splash) Update() error {
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s.increment++
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s.bgcolor.R = (s.bgcolor.R - 2) % 0xFF
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s.bgcolor.G = (s.bgcolor.G - 2) % 0xFF
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s.bgcolor.B = (s.bgcolor.B - 2) % 0xFF
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if s.bgcolor.R == 0x00 {
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s.events[groovy.COMPLETED]()
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//scene cleanup (for next time)
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s.increment = 0
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}
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return nil
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}
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func (s Splash) SetEventHandler(event groovy.SceneEvent, f func()) {
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s.events[event] = f
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}
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