remove demo game

ui.dialog_box.go

@@ -0,0 +1,134 @@
+package pncdsl
+
+import (
+	"github.com/hajimehoshi/ebiten/v2"
+	"github.com/hajimehoshi/ebiten/v2/vector"
+)
+
+// DialogBox renders the active conversation: one line at a time (advanced
+// on click) followed by the player's choices. The widget is dormant
+// unless ctx.Game.dialogueActive() — and while active it consumes input
+// so nothing underneath reacts.
+type DialogBox struct {
+	Name       string
+	Bounds     Rectangle
+	LineHeight int
+	Padding    int
+}
+
+func (d *DialogBox) GetName() string { return d.Name }
+
+func (d *DialogBox) Tick(ctx *UICtx) {
+	g := ctx.Game
+	if !g.dialogueActive() {
+		return
+	}
+	// while a dialog is open, ALL clicks belong to it
+	if g.Input.RightClicked() {
+		g.Input.ConsumeRight()
+	}
+	if !g.Input.LeftClicked() {
+		return
+	}
+	g.Input.ConsumeLeft()
+	mp := g.Input.Point()
+
+	dlg := g.dialog
+	if dlg.LineIdx >= 0 && dlg.LineIdx < len(dlg.Node.Lines) {
+		dlg.LineIdx++
+		if dlg.LineIdx >= len(dlg.Node.Lines) {
+			dlg.LineIdx = -1
+			dlg.ChoiceHits = nil
+		}
+		return
+	}
+	// pick the clicked choice
+	for i, r := range dlg.ChoiceHits {
+		if r.Contains(mp) {
+			choice := d.resolveChoices(ctx)[i]
+			if choice.Once {
+				g.State.NoteTalked(dlg.Node.Name + ":" + choice.Text)
+			}
+			if len(choice.Actions) > 0 {
+				g.queueAction(Seq(choice.Actions...), "choice")
+			}
+			return
+		}
+	}
+}
+
+func (d *DialogBox) resolveChoices(ctx *UICtx) []DialogueChoice {
+	g := ctx.Game
+	dlg := g.dialog
+	out := make([]DialogueChoice, 0, len(dlg.Node.Choices))
+	for _, c := range dlg.Node.Choices {
+		gctx := g.makeCtx()
+		if c.Show != nil && !c.Show.Eval(gctx) {
+			continue
+		}
+		if c.Once && g.State.Talked(dlg.Node.Name+":"+c.Text) > 0 {
+			continue
+		}
+		out = append(out, c)
+	}
+	return out
+}
+
+// BlocksClickAt — when a dialog is open, every click is ours.
+func (d *DialogBox) BlocksClickAt(p Point) bool {
+	// without ctx we can't know if a dialog is active; conservatively block
+	// when the cursor is in the dialog bounds (used only by RadialVerbs).
+	b := d.Bounds
+	if b.W == 0 {
+		return false
+	}
+	return b.Contains(p)
+}
+
+func (d *DialogBox) Draw(dst *ebiten.Image, ctx *UICtx) {
+	g := ctx.Game
+	if !g.dialogueActive() {
+		return
+	}
+	th := g.Theme()
+	b := d.Bounds
+	if b.W == 0 {
+		b = Rect(0, 140, float64(g.Width), 60)
+	}
+	pad := d.Padding
+	if pad <= 0 {
+		pad = 6
+	}
+	lh := d.LineHeight
+	if lh <= 0 {
+		lh = 14
+	}
+
+	vector.DrawFilledRect(dst, float32(b.X), float32(b.Y), float32(b.W), float32(b.H), th.DialogBG, false)
+	vector.StrokeRect(dst, float32(b.X), float32(b.Y), float32(b.W), float32(b.H), 1, th.DialogBorder, false)
+
+	dlg := g.dialog
+	if dlg.LineIdx >= 0 && dlg.LineIdx < len(dlg.Node.Lines) {
+		ln := dlg.Node.Lines[dlg.LineIdx]
+		g.DrawText(dst, ln.Speaker+":", int(b.X)+pad, int(b.Y)+2, th.DialogSpeaker)
+		lines := wrapText(ln.Text, int(b.W)-pad*2)
+		for i, l := range lines {
+			g.DrawText(dst, l, int(b.X)+pad, int(b.Y)+18+i*lh, th.DialogText)
+		}
+		return
+	}
+
+	choices := d.resolveChoices(ctx)
+	dlg.ChoiceHits = dlg.ChoiceHits[:0]
+	mp := g.Input.Point()
+	for i, c := range choices {
+		r := Rect(b.X+float64(pad), b.Y+4+float64(i*lh), b.W-float64(pad)*2, float64(lh-1))
+		dlg.ChoiceHits = append(dlg.ChoiceHits, r)
+		bg := th.DialogChoiceBG
+		if r.Contains(mp) {
+			bg = th.DialogChoiceHover
+		}
+		vector.DrawFilledRect(dst, float32(r.X), float32(r.Y), float32(r.W), float32(r.H), bg, false)
+		g.DrawText(dst, c.Text, int(r.X)+2, int(r.Y)-1, th.DialogText)
+	}
+}