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mirror of https://github.com/OpenDiablo2/OpenDiablo2 synced 2024-11-05 09:47:18 -05:00
OpenDiablo2/d2game/d2gamescreen/credits.go

279 lines
6.5 KiB
Go

package d2gamescreen
import (
"bufio"
"os"
"path"
"strings"
"github.com/OpenDiablo2/OpenDiablo2/d2common/d2enum"
"github.com/OpenDiablo2/OpenDiablo2/d2common/d2interface"
"github.com/OpenDiablo2/OpenDiablo2/d2common/d2resource"
"github.com/OpenDiablo2/OpenDiablo2/d2common/d2util"
"github.com/OpenDiablo2/OpenDiablo2/d2core/d2asset"
"github.com/OpenDiablo2/OpenDiablo2/d2core/d2screen"
"github.com/OpenDiablo2/OpenDiablo2/d2core/d2ui"
)
const (
creditsX, creditsY = 0, 0
charSelExitBtnX, charSelExitBtnY = 33, 543
)
const secondsPerCycle float64 = 0.02
type labelItem struct {
Label *d2ui.Label
IsHeading bool
Available bool
}
// CreateCredits creates an instance of the credits screen
func CreateCredits(navigator d2interface.Navigator,
asset *d2asset.AssetManager,
renderer d2interface.Renderer,
l d2util.LogLevel,
ui *d2ui.UIManager) *Credits {
credits := &Credits{
asset: asset,
labels: make([]*labelItem, 0),
cycleTime: 0,
doneWithCredits: false,
cyclesTillNextLine: 0,
renderer: renderer,
navigator: navigator,
uiManager: ui,
}
credits.Logger = d2util.NewLogger()
credits.Logger.SetLevel(l)
credits.Logger.SetPrefix(logPrefix)
return credits
}
// Credits represents the credits screen
type Credits struct {
creditsBackground *d2ui.Sprite
exitButton *d2ui.Button
creditsText []string
labels []*labelItem
cycleTime float64
cyclesTillNextLine int
doneWithCredits bool
asset *d2asset.AssetManager
renderer d2interface.Renderer
navigator d2interface.Navigator
uiManager *d2ui.UIManager
*d2util.Logger
}
// LoadContributors loads the contributors data from file
func (v *Credits) LoadContributors() []string {
file, err := os.Open(path.Join("./", "CONTRIBUTORS"))
if err != nil || file == nil {
v.Warning("CONTRIBUTORS file is missing")
return []string{"MISSING CONTRIBUTOR FILES!"}
}
defer func() {
if err = file.Close(); err != nil {
v.Errorf("an error occurred while closing file: %s, err: %e", file.Name(), err)
}
}()
scanner := bufio.NewScanner(file)
var contributors []string
for scanner.Scan() {
contributors = append(contributors, strings.Trim(scanner.Text(), " "))
}
return contributors
}
// OnLoad is called to load the resources for the credits screen
func (v *Credits) OnLoad(loading d2screen.LoadingState) {
var err error
v.creditsBackground, err = v.uiManager.NewSprite(d2resource.CreditsBackground, d2resource.PaletteSky)
if err != nil {
v.Error(err.Error())
}
v.creditsBackground.SetPosition(creditsX, creditsY)
loading.Progress(twentyPercent)
v.exitButton = v.uiManager.NewButton(d2ui.ButtonTypeMedium, v.asset.TranslateString(d2enum.ExitLabel))
v.exitButton.SetPosition(charSelExitBtnX, charSelExitBtnY)
v.exitButton.OnActivated(func() { v.onExitButtonClicked() })
loading.Progress(fourtyPercent)
fileData, err := v.asset.LoadFile(d2resource.CreditsText)
if err != nil {
loading.Error(err)
return
}
loading.Progress(sixtyPercent)
creditData, err := d2util.Utf16BytesToString(fileData[2:])
if err != nil {
v.Error(err.Error())
}
v.creditsText = strings.Split(creditData, "\r\n")
for i := range v.creditsText {
v.creditsText[i] = strings.Trim(v.creditsText[i], " ")
}
loading.Progress(eightyPercent)
v.creditsText = append(v.LoadContributors(), v.creditsText...)
}
// Render renders the credits screen
func (v *Credits) Render(screen d2interface.Surface) {
v.creditsBackground.RenderSegmented(screen, 4, 3, 0)
for _, label := range v.labels {
if label.Available {
continue
}
label.Label.Render(screen)
}
}
// Advance runs the update logic on the credits screen
func (v *Credits) Advance(tickTime float64) error {
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
}
_, y := label.Label.GetPosition()
if y-1 < -15 {
label.Available = true
continue
}
label.Label.OffsetPosition(0, -1)
}
}
return nil
}
func (v *Credits) onExitButtonClicked() {
v.navigator.ToMainMenu()
}
func (v *Credits) addNextItem() {
if len(v.creditsText) == 0 {
v.doneWithCredits = true
return
}
text := v.creditsText[0]
v.creditsText = v.creditsText[1:]
if text == "" {
if v.creditsText[0][0] == '*' {
v.cyclesTillNextLine = 38
return
}
v.cyclesTillNextLine = 19
return
}
isHeading := text[0] == '*'
isNextHeading := len(v.creditsText) > 0 && len(v.creditsText[0]) > 0 && v.creditsText[0][0] == '*'
isNextSpace := len(v.creditsText) > 0 && v.creditsText[0] == ""
var label = v.getNewFontLabel(isHeading)
if isHeading {
label.SetText(d2ui.ColorTokenize(text[1:], d2ui.ColorTokenRed))
} else {
label.SetText(d2ui.ColorTokenize(text, d2ui.ColorTokenGold))
}
isDoubled, isNextHeading := v.setItemLabelPosition(label, isHeading, isNextHeading, isNextSpace)
switch {
case isHeading && isNextHeading:
v.cyclesTillNextLine = 38
case isNextHeading:
if isDoubled {
v.cyclesTillNextLine = 38
} else {
v.cyclesTillNextLine = 57
}
case isHeading:
v.cyclesTillNextLine = 38
default:
v.cyclesTillNextLine = 19
}
}
const (
itemLabelY = 605
itemLabelX = 400
itemLabel2offsetX = 10
halfItemLabel2offsetX = itemLabel2offsetX / 2
)
func (v *Credits) setItemLabelPosition(label *d2ui.Label, isHeading, isNextHeading, isNextSpace bool) (isDoubled, nextHeading bool) {
width, _ := label.GetSize()
half := 2
halfWidth := width / half
if !isHeading && !isNextHeading && !isNextSpace {
isDoubled = true
// Gotta go side by side
label.SetPosition(itemLabelX-width, itemLabelY)
text2 := v.creditsText[0]
v.creditsText = v.creditsText[1:]
nextHeading = len(v.creditsText) > 0 && len(v.creditsText[0]) > 0 && v.creditsText[0][0] == '*'
label2 := v.getNewFontLabel(isHeading)
label2.SetText(d2ui.ColorTokenize(text2, d2ui.ColorTokenGold))
label2.SetPosition(itemLabelX+itemLabel2offsetX, itemLabelY)
return isDoubled, nextHeading
}
label.SetPosition(itemLabelX+halfItemLabel2offsetX-halfWidth, itemLabelY)
return isDoubled, isNextHeading
}
func (v *Credits) getNewFontLabel(isHeading bool) *d2ui.Label {
newLabelItem := &labelItem{
Available: false,
IsHeading: isHeading,
Label: v.uiManager.NewLabel(d2resource.FontFormal10, d2resource.PaletteSky),
}
v.labels = append(v.labels, newLabelItem)
return newLabelItem.Label
}