mirror of
https://github.com/OpenDiablo2/OpenDiablo2
synced 2024-10-06 02:03:57 -04:00
126 lines
2.5 KiB
Go
126 lines
2.5 KiB
Go
package d2gui
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import (
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"image/color"
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"math"
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"github.com/OpenDiablo2/OpenDiablo2/d2common/d2resource"
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"github.com/OpenDiablo2/OpenDiablo2/d2core/d2input"
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"github.com/OpenDiablo2/OpenDiablo2/d2core/d2render"
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)
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type guiWidget interface {
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getLayer() int
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render(target d2render.Surface) error
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advance(elapsed float64) error
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}
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type guiManager struct {
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cursorSprite *Sprite
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loadSprite *Sprite
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widgets []guiWidget
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loading bool
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}
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func createGuiManager() (*guiManager, error) {
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cursorSprite, err := CreateSprite(d2resource.CursorDefault, d2resource.PaletteUnits)
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if err != nil {
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return nil, err
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}
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loadSprite, err := CreateSprite(d2resource.LoadingScreen, d2resource.PaletteLoading)
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if err != nil {
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return nil, err
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}
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width, height := loadSprite.getSize()
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loadSprite.SetPosition(400-width/2, 300+height/2)
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manager := &guiManager{
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cursorSprite: cursorSprite,
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loadSprite: loadSprite,
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}
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if err := d2input.BindHandler(manager); err != nil {
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return nil, err
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}
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return manager, nil
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}
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func (gui *guiManager) OnMouseMove(event d2input.MouseMoveEvent) bool {
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gui.cursorSprite.SetPosition(event.X, event.Y)
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return false
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}
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func (gui *guiManager) render(target d2render.Surface) error {
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if gui.loading {
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target.Clear(color.Black)
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if err := gui.loadSprite.render(target); err != nil {
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return err
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}
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} else {
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for _, widget := range gui.widgets {
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if err := widget.render(target); err != nil {
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return err
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}
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}
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}
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if err := gui.cursorSprite.render(target); err != nil {
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return err
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}
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return nil
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}
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func (gui *guiManager) advance(elapsed float64) error {
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if gui.loading {
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gui.loadSprite.Show()
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if err := gui.loadSprite.advance(elapsed); err != nil {
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return err
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}
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} else {
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gui.loadSprite.Hide()
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for _, widget := range gui.widgets {
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if err := widget.advance(elapsed); err != nil {
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return err
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}
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}
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}
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if err := gui.loadSprite.advance(elapsed); err != nil {
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return err
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}
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return nil
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}
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func (gui *guiManager) showLoadScreen(progress float64) {
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progress = math.Min(progress, 1.0)
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progress = math.Max(progress, 0.0)
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animation := gui.loadSprite.animation
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frameCount := animation.GetFrameCount()
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animation.SetCurrentFrame(int(float64(frameCount-1.0) * progress))
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gui.loading = true
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}
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func (gui *guiManager) hideLoadScreen() {
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gui.loading = false
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}
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func (gui *guiManager) showCursor() {
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gui.cursorSprite.Show()
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}
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func (gui *guiManager) hideCursor() {
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gui.cursorSprite.Hide()
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}
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func (gui *guiManager) clear() {
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gui.widgets = nil
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gui.hideLoadScreen()
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}
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