game skeleton

internal/content/scene/scene.go

@@ -0,0 +1,27 @@
+// Package scene registers the game's scenes.
+package scene
+
+import (
+	inkwell "git.teletypegames.org/engines/inkwell"
+
+	"realworld/internal/world"
+)
+
+// Register adds every scene to the game.
+func Register(w *world.World) {
+	for _, s := range []inkwell.Scene{
+		alley(w),
+	} {
+		w.G.SceneManager.Register(s)
+	}
+}
+
+// setVarIfEmpty only writes when the variable is still unset, so re-entering a
+// scene does not clobber what the game has set in the meantime.
+func setVarIfEmpty(name string, v any) inkwell.Action {
+	return world.Fn(func(ctx *inkwell.Ctx) {
+		if ctx.Game.State.Var(name) == nil {
+			ctx.Game.State.SetVar(name, v)
+		}
+	})
+}