doodle/pkg/main_scene.go

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package doodle
import (
"fmt"
"git.kirsle.net/apps/doodle/pkg/balance"
"git.kirsle.net/apps/doodle/pkg/branding"
"git.kirsle.net/apps/doodle/pkg/level"
"git.kirsle.net/apps/doodle/pkg/log"
"git.kirsle.net/apps/doodle/pkg/native"
"git.kirsle.net/apps/doodle/pkg/scripting"
"git.kirsle.net/apps/doodle/pkg/shmem"
"git.kirsle.net/apps/doodle/pkg/uix"
"git.kirsle.net/apps/doodle/pkg/updater"
"git.kirsle.net/go/render"
"git.kirsle.net/go/render/event"
"git.kirsle.net/go/ui"
)
// MainScene implements the main menu of Doodle.
type MainScene struct {
Supervisor *ui.Supervisor
// Background wallpaper canvas.
scripting *scripting.Supervisor
canvas *uix.Canvas
// UI components.
labelTitle *ui.Label
labelVersion *ui.Label
labelHint *ui.Label
frame *ui.Frame // Main button frame
// Update check variables.
updateButton *ui.Button
updateInfo updater.VersionInfo
}
// Name of the scene.
func (s *MainScene) Name() string {
return "Main"
}
// Setup the scene.
func (s *MainScene) Setup(d *Doodle) error {
s.Supervisor = ui.NewSupervisor()
if err := s.SetupDemoLevel(d); err != nil {
return err
}
// Main title label
s.labelTitle = ui.NewLabel(ui.Label{
Text: branding.AppName,
Font: balance.TitleScreenFont,
})
s.labelTitle.Compute(d.Engine)
// Version label.
var shareware string
if balance.FreeVersion {
shareware = " (shareware)"
}
ver := ui.NewLabel(ui.Label{
Text: fmt.Sprintf("v%s%s", branding.Version, shareware),
Font: render.Text{
Size: 18,
Color: render.Grey,
Shadow: render.Black,
},
})
ver.Compute(d.Engine)
s.labelVersion = ver
// Arrow Keys hint label (scroll the demo level).
s.labelHint = ui.NewLabel(ui.Label{
Text: "Hint: press the Arrow keys",
Font: render.Text{
Size: 16,
Color: render.Grey,
Shadow: render.Purple,
},
})
s.labelHint.Compute(d.Engine)
// "Update Available" button.
s.updateButton = ui.NewButton("Update Button", ui.NewLabel(ui.Label{
Text: "An update is available!",
Font: render.Text{
FontFilename: "DejaVuSans-Bold.ttf",
Size: 16,
Color: render.Blue,
Padding: 4,
},
}))
s.updateButton.Handle(ui.Click, func(ed ui.EventData) error {
native.OpenURL(s.updateInfo.DownloadURL)
return nil
})
s.updateButton.Compute(d.Engine)
s.updateButton.Hide()
s.Supervisor.Add(s.updateButton)
// Main UI button frame.
frame := ui.NewFrame("frame")
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s.frame = frame
var buttons = []struct {
Name string
Func func()
}{
// {
// Name: "Story Mode",
// Func: d.GotoStoryMenu,
// },
{
Name: "Play a Level",
Func: d.GotoPlayMenu,
},
{
Name: "Create a New Level",
Func: d.GotoNewMenu,
},
{
Name: "Edit a Level",
Func: d.GotoLoadMenu,
},
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// {
// Name: "Settings",
// Func: d.GotoSettingsMenu,
// },
}
for _, button := range buttons {
button := button
btn := ui.NewButton(button.Name, ui.NewLabel(ui.Label{
Text: button.Name,
Font: balance.StatusFont,
}))
btn.Handle(ui.Click, func(ed ui.EventData) error {
button.Func()
return nil
})
s.Supervisor.Add(btn)
frame.Pack(btn, ui.Pack{
Side: ui.N,
PadY: 8,
// Fill: true,
FillX: true,
})
}
// Check for update in the background.
go s.checkUpdate()
return nil
}
// checkUpdate checks for a version update and shows the button.
func (s *MainScene) checkUpdate() {
if shmem.OfflineMode {
log.Info("OfflineMode: skip updates check")
return
}
info, err := updater.Check()
if err != nil {
log.Error(err.Error())
return
}
if info.LatestVersion != branding.Version {
s.updateInfo = info
s.updateButton.Show()
}
}
// SetupDemoLevel configures the wallpaper behind the New screen,
// which demos a title screen demo level.
func (s *MainScene) SetupDemoLevel(d *Doodle) error {
// Set up the background wallpaper canvas.
s.canvas = uix.NewCanvas(100, false)
s.canvas.Scrollable = true
s.canvas.Resize(render.Rect{
W: d.width,
H: d.height,
})
s.scripting = scripting.NewSupervisor()
s.canvas.SetScriptSupervisor(s.scripting)
// Title screen level to load.
if lvl, err := level.LoadFile(balance.DemoLevelName); err == nil {
s.canvas.LoadLevel(d.Engine, lvl)
s.canvas.InstallActors(lvl.Actors)
// Load all actor scripts.
if err := s.scripting.InstallScripts(lvl); err != nil {
log.Error("Error with title screen level scripts: %s", err)
}
// Run all actors scripts main function to start them off.
if err := s.canvas.InstallScripts(); err != nil {
log.Error("Error running actor main() functions: %s", err)
}
} else {
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log.Error("Error loading demo level %s: %s", balance.DemoLevelName, err)
}
return nil
}
// Loop the editor scene.
func (s *MainScene) Loop(d *Doodle, ev *event.State) error {
s.Supervisor.Loop(ev)
if err := s.scripting.Loop(); err != nil {
log.Error("MainScene.Loop: scripting.Loop: %s", err)
}
s.canvas.Loop(ev)
if ev.WindowResized {
w, h := d.Engine.WindowSize()
d.width = w
d.height = h
log.Info("Resized to %dx%d", d.width, d.height)
s.canvas.Resize(render.Rect{
W: d.width,
H: d.height,
})
}
return nil
}
// Draw the pixels on this frame.
func (s *MainScene) Draw(d *Doodle) error {
// Clear the canvas and fill it with white.
d.Engine.Clear(render.White)
s.canvas.Present(d.Engine, render.Origin)
// Draw a sheen over the level for clarity.
d.Engine.DrawBox(render.RGBA(255, 255, 254, 128), render.Rect{
X: 0,
Y: 0,
W: d.width,
H: d.height,
})
// App title label.
s.labelTitle.MoveTo(render.Point{
X: (d.width / 2) - (s.labelTitle.Size().W / 2),
Y: 120,
})
s.labelTitle.Present(d.Engine, s.labelTitle.Point())
// Version label
s.labelVersion.MoveTo(render.Point{
X: (d.width / 2) - (s.labelVersion.Size().W / 2),
Y: s.labelTitle.Point().Y + s.labelTitle.Size().H + 8,
})
s.labelVersion.Present(d.Engine, s.labelVersion.Point())
// Hint label.
s.labelHint.MoveTo(render.Point{
X: d.width - s.labelHint.Size().W - 32,
Y: d.height - s.labelHint.Size().H - 32,
})
s.labelHint.Present(d.Engine, s.labelHint.Point())
// Update button.
s.updateButton.MoveTo(render.Point{
X: 24,
Y: d.height - s.updateButton.Size().H - 24,
})
s.updateButton.Present(d.Engine, s.updateButton.Point())
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s.frame.Compute(d.Engine)
s.frame.MoveTo(render.Point{
X: (d.width / 2) - (s.frame.Size().W / 2),
Y: 260,
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})
s.frame.Present(d.Engine, s.frame.Point())
return nil
}
// Destroy the scene.
func (s *MainScene) Destroy() error {
return nil
}