dialog skeleton

konstructor/dialog.go

@@ -0,0 +1,60 @@
+package konstructor
+
+import (
+	"image/color"
+
+	"github.com/hajimehoshi/ebiten"
+	"github.com/hajimehoshi/ebiten/text"
+)
+
+type DialogLayout struct {
+	Background string
+	ChoiceFont FontLayout
+}
+
+type DialogChoice struct {
+	ID      string
+	Label   string
+	Handler func()
+}
+
+type Dialog struct {
+	CurrentSelected int
+	Layout          DialogLayout
+	Choices         []DialogChoice
+}
+
+func (dialog *Dialog) GetChoiceColor(i int) color.Color {
+	if dialog.CurrentSelected == i {
+		return dialog.Layout.ChoiceFont.SelectedColor
+	} else {
+		return dialog.Layout.ChoiceFont.Color
+	}
+}
+
+func (e *Engine) DialogDraw(screen *ebiten.Image) {
+	dialog := e.Domain.GetDialog()
+
+	face := GetFontFace(dialog.Layout.ChoiceFont)
+
+	for i, choice := range dialog.Choices {
+		offset := int(dialog.Layout.ChoiceFont.Size) * (i + 1)
+		text.Draw(screen, choice.Label+"\n", face, 8, offset, dialog.GetChoiceColor(i))
+	}
+}
+
+func (e *Engine) DialogUpdate() {
+	dialog := e.Domain.GetDialog()
+
+	if e.Controller.UpPressed() && dialog.CurrentSelected != 0 {
+		dialog.CurrentSelected--
+	}
+
+	if e.Controller.DownPressed() && dialog.CurrentSelected != len(dialog.Choices)-1 {
+		dialog.CurrentSelected++
+	}
+
+	if e.Controller.Action0Pressed() {
+		dialog.Choices[dialog.CurrentSelected].Handler()
+	}
+}