ordoor/internal/ordoor/interfaces.go

package ordoor

import (
	"log"

	"code.ur.gs/lupine/ordoor/internal/ui"
)

func try(result error, into *error) {
	if *into == nil {
		*into = result
	}
}

// These are UI interfaces covering the game entrypoint

func (o *Ordoor) mainDriver() (*ui.Driver, error) {
	// Start in the "main" menu
	main, err := o.buildDriver("main")
	if err != nil {
		return nil, err
	}

	options, err := o.optionsDriver(main)
	if err != nil {
		return nil, err
	}

	// TODO: clicking these buttons should load other interfaces
	try(main.OnClick("2.1", func() {}), &err)                          // New game
	try(main.OnClick("2.2", func() {}), &err)                          // Load game
	try(main.SetFreeze("2.3", true), &err)                             // Multiplayer - disable for now
	try(main.OnClick("2.4", func() { o.driver = options }), &err)      // Options
	try(main.OnClick("2.5", func() { o.nextState = StateExit }), &err) // Quit

	return main, err
}

// Options needs to know how to go back to main
func (o *Ordoor) optionsDriver(main *ui.Driver) (*ui.Driver, error) {
	options, err := o.buildDriver("options")
	if err != nil {
		return nil, err
	}

	if err := o.configIntoOptions(options); err != nil {
		return nil, err
	}

	// TODO: load current options state into UI
	try(options.OnClick("2.8", func() {}), &err) // Keyboard settings button
	// Resolution slider is 2.9
	// Music volume slider is 2.10
	// Sound FX volume slider is 2.11
	try(options.OnClick("2.12", acceptOptionsFn(o, main, options)), &err)
	// 13...23 are "hypertext"
	try(options.OnClick("2.24", cancelOptionsFn(o, main, options)), &err)
	// Unit speed slider is 2,26
	// Looping effect speed slider is 2,27
	// Sample of unit speed animation is 2,28
	// Sample of effect speed animation is 2,29

	// 30...35 are "hypertext"

	return options, err
}

// FIXME: exiting is a bit OTT. Perhaps display "save failed"?
func acceptOptionsFn(o *Ordoor, main, options *ui.Driver) func() {
	return func() {
		if err := o.optionsIntoConfig(options); err != nil {
			log.Printf("Saving options to config failed: %v", err)
			o.nextState = StateExit
		} else {
			o.driver = main
		}
	}
}

// FIXME: again, exiting is OTT. We're just resetting the state of
// the interface to the values in config.
func cancelOptionsFn(o *Ordoor, main, options *ui.Driver) func() {
	return func() {
		if err := o.configIntoOptions(options); err != nil {
			log.Printf("Saving options to config failed: %v", err)
			o.nextState = StateExit
		} else {
			o.driver = main
		}
	}
}

func (o *Ordoor) configIntoOptions(options *ui.Driver) error {
	cfg := &o.config.Options
	var err error

	try(options.SetValueBool("2.1", cfg.PlayMovies), &err)
	try(options.SetValueBool("2.1", cfg.Animations), &err)
	try(options.SetValueBool("2.3", cfg.PlayMusic), &err)
	try(options.SetValueBool("2.4", cfg.CombatVoices), &err)
	try(options.SetValueBool("2.5", cfg.ShowGrid), &err)
	try(options.SetValueBool("2.6", cfg.ShowPaths), &err)
	try(options.SetValueBool("2.7", cfg.PointSaving), &err)
	try(options.SetValueBool("2.25", cfg.AutoCutLevel), &err)

	return err
}

func (o *Ordoor) optionsIntoConfig(options *ui.Driver) error {
	cfg := &o.config.Options
	var err error

	try(options.ValueBool("2.1", &cfg.PlayMovies), &err)
	try(options.ValueBool("2.2", &cfg.Animations), &err)
	try(options.ValueBool("2.3", &cfg.PlayMusic), &err)
	try(options.ValueBool("2.4", &cfg.CombatVoices), &err)
	try(options.ValueBool("2.5", &cfg.ShowGrid), &err)
	try(options.ValueBool("2.6", &cfg.ShowPaths), &err)
	try(options.ValueBool("2.7", &cfg.PointSaving), &err)
	try(options.ValueBool("2.25", &cfg.AutoCutLevel), &err)

	if err != nil {
		return err
	}

	if err := o.config.Save(); err != nil {
		return err
	}

	// TODO: emit events, rather than just modifying state here
	if o.music != nil && o.music.IsPlaying() != cfg.PlayMusic {
		if cfg.PlayMusic {
			o.music.Rewind()
			o.music.Play()
		} else {
			o.music.Pause()
		}
	}

	return nil
}

func (o *Ordoor) buildDriver(name string) (*ui.Driver, error) {
	menu, err := o.assets.Menu(name)
	if err != nil {
		return nil, err
	}

	driver, err := ui.NewDriver(menu)
	if err != nil {
		return nil, err
	}

	return driver, nil
}