package Scenes import ( "image/color" "strings" "github.com/essial/OpenDiablo2/Common" "github.com/essial/OpenDiablo2/PaletteDefs" "github.com/essial/OpenDiablo2/ResourcePaths" "github.com/essial/OpenDiablo2/Sound" "github.com/essial/OpenDiablo2/UI" "github.com/hajimehoshi/ebiten" ) type labelItem struct { Label *UI.Label IsHeading bool Available bool } // Credits represents the credits scene type Credits struct { uiManager *UI.Manager soundManager *Sound.Manager fileProvider Common.FileProvider sceneProvider SceneProvider creditsBackground *Common.Sprite exitButton *UI.Button creditsText []string labels []*labelItem cycleTime float64 cyclesTillNextLine int doneWithCredits bool } // CreateCredits creates an instance of the credits scene func CreateCredits(fileProvider Common.FileProvider, sceneProvider SceneProvider, uiManager *UI.Manager, soundManager *Sound.Manager) *Credits { result := &Credits{ fileProvider: fileProvider, uiManager: uiManager, soundManager: soundManager, sceneProvider: sceneProvider, labels: make([]*labelItem, 0), cycleTime: 0, doneWithCredits: false, cyclesTillNextLine: 0, } return result } // Load is called to load the resources for the credits scene func (v *Credits) Load() []func() { return []func(){ func() { v.creditsBackground = v.fileProvider.LoadSprite(ResourcePaths.CreditsBackground, PaletteDefs.Sky) v.creditsBackground.MoveTo(0, 0) }, func() { v.exitButton = UI.CreateButton(UI.ButtonTypeMedium, v.fileProvider, Common.TranslateString("#970")) v.exitButton.MoveTo(30, 550) v.exitButton.OnActivated(func() { v.onExitButtonClicked() }) v.uiManager.AddWidget(v.exitButton) }, func() { fileData, _ := Common.Utf16BytesToString(v.fileProvider.LoadFile(ResourcePaths.CreditsText)[2:]) v.creditsText = strings.Split(fileData, "\r\n") for i := range v.creditsText { v.creditsText[i] = strings.Trim(v.creditsText[i], " ") } }, } } // Unload unloads the data for the credits scene func (v *Credits) Unload() { } // Render renders the credits scene func (v *Credits) Render(screen *ebiten.Image) { v.creditsBackground.DrawSegments(screen, 4, 3, 0) for _, label := range v.labels { if label.Available { continue } label.Label.Draw(screen) } } const secondsPerCycle = float64(0.02) // Update runs the update logic on the credits scene func (v *Credits) Update(tickTime float64) { v.cycleTime += tickTime for v.cycleTime >= secondsPerCycle { v.cycleTime -= secondsPerCycle v.cyclesTillNextLine-- if !v.doneWithCredits && v.cyclesTillNextLine <= 0 { v.addNextItem() } for _, label := range v.labels { if label.Available { continue } if label.Label.Y-1 < -15 { label.Available = true continue } label.Label.Y-- } } } func (v *Credits) onExitButtonClicked() { mainMenu := CreateMainMenu(v.fileProvider, v.sceneProvider, v.uiManager, v.soundManager) mainMenu.ShowTrademarkScreen = false v.sceneProvider.SetNextScene(mainMenu) } func (v *Credits) addNextItem() { if len(v.creditsText) == 0 { v.doneWithCredits = true return } text := v.creditsText[0] v.creditsText = v.creditsText[1:] if len(text) == 0 { v.cyclesTillNextLine = 18 return } isHeading := text[0] == '*' isNextHeading := len(v.creditsText) > 0 && len(v.creditsText[0]) > 0 && v.creditsText[0][0] == '*' isNextSpace := len(v.creditsText) > 0 && len(v.creditsText[0]) == 0 var label = v.getNewFontLabel(isHeading) if isHeading { label.SetText(text[1:]) } else { label.SetText(text) } width, _ := label.GetSize() isDoubled := false if !isHeading && !isNextHeading && !isNextSpace { isDoubled = true // Gotta go side by side label.MoveTo(390-int(width), 605) text2 := v.creditsText[0] v.creditsText = v.creditsText[1:] isNextHeading = len(v.creditsText) > 0 && len(v.creditsText[0]) > 0 && v.creditsText[0][0] == '*' label2 := v.getNewFontLabel(isHeading) label2.SetText(text2) label2.MoveTo(410, 605) } else { label.MoveTo(400-int(width/2), 605) } if isHeading && isNextHeading { v.cyclesTillNextLine = 40 } else if isNextHeading { if isDoubled { v.cyclesTillNextLine = 40 } else { v.cyclesTillNextLine = 70 } } else if isHeading { v.cyclesTillNextLine = 40 } else { v.cyclesTillNextLine = 18 } } func (v *Credits) getNewFontLabel(isHeading bool) *UI.Label { for _, label := range v.labels { if label.Available { label.Available = false if isHeading { label.Label.Color = color.RGBA{255, 88, 82, 255} } else { label.Label.Color = color.RGBA{198, 178, 150, 255} } return label.Label } } newLabelItem := &labelItem{ Available: false, IsHeading: isHeading, Label: UI.CreateLabel(v.fileProvider, ResourcePaths.FontFormal10, PaletteDefs.Sky), } if isHeading { newLabelItem.Label.Color = color.RGBA{255, 88, 82, 255} } else { newLabelItem.Label.Color = color.RGBA{198, 178, 150, 255} } v.labels = append(v.labels, newLabelItem) return newLabelItem.Label }