Can load more than a single level pack (but not play yet).

cmd/krampus19/context.go

@@ -3,6 +3,7 @@ package main
 import (
 	"time"
 
+	"github.com/spf13/afero"
 	"opslag.de/schobers/geom"
 	"opslag.de/schobers/krampus19/alui"
 
@@ -23,6 +24,7 @@ func newTexture(bmp *allg5.Bitmap) texture {
 type Context struct {
 	DisplaySize  geom.Point
 	Resources    vfs.CopyDir
+	ResourcesFs  afero.Fs
 	Textures     map[string]texture
 	Sprites      map[string]sprite
 	Levels       map[string]levelPack

cmd/krampus19/game.go

@@ -6,7 +6,11 @@ import (
 	"image/png"
 	"io"
 	"log"
+	"os"
+	"path/filepath"
+	"strings"
 
+	"github.com/spf13/afero"
 	"opslag.de/schobers/allg5"
 	"opslag.de/schobers/fs/vfs"
 	"opslag.de/schobers/geom"
@@ -100,7 +104,31 @@ func (g *game) loadTextures(pathToName map[string]string) error {
 
 func (g *game) loadLevelPacks() error {
 	g.ctx.Levels = map[string]levelPack{}
-	ids := []string{"1"}
+
+	var ids []string
+	const root = "levels"
+	err := afero.Walk(g.ctx.ResourcesFs, root, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+		if !info.IsDir() {
+			return nil
+		}
+		name := filepath.Base(path)
+		if name == root {
+			return nil
+		}
+
+		if !strings.HasPrefix(name, "pack") {
+			return filepath.SkipDir
+		}
+		ids = append(ids, name[4:])
+		return filepath.SkipDir
+	})
+	if err != nil {
+		return err
+	}
+
 	for _, id := range ids {
 		err := g.loadLevelPack(id)
 		if err != nil {
@@ -173,12 +201,12 @@ func (g *game) loadAssets() error {
 	}
 	log.Printf("Loaded %d textures.\n", len(g.ctx.Textures))
 
-	log.Println("Loading levels...")
+	log.Println("Loading level packs...")
 	err = g.loadLevelPacks()
 	if err != nil {
 		return err
 	}
-	log.Printf("Loaded %d levels.\n", len(g.ctx.Levels))
+	log.Printf("Loaded %d levels packs.\n", len(g.ctx.Levels))
 
 	log.Println("Loading fonts...")
 	err = g.loadFonts()
@@ -201,9 +229,9 @@ func (g *game) Destroy() {
 	g.ctx.Destroy()
 }
 
-func (g *game) Init(disp *allg5.Display, settings settings, res vfs.CopyDir, cons *gut.Console, fps *gut.FPS) error {
+func (g *game) Init(disp *allg5.Display, settings settings, res vfs.CopyDir, resFs afero.Fs, cons *gut.Console, fps *gut.FPS) error {
 	log.Print("Initializing game...")
-	g.ctx = &Context{Resources: res, Textures: map[string]texture{}, Settings: settings, Navigation: navigation{game: g}}
+	g.ctx = &Context{Resources: res, ResourcesFs: resFs, Textures: map[string]texture{}, Settings: settings, Navigation: navigation{game: g}}
 	g.ctx.DisplaySize = geom.Pt(disp.Width(), disp.Height())
 	g.ctx.SpriteDrawer.ctx = g.ctx
 	err := g.ctx.Progress.load()

cmd/krampus19/krampus19.go

@@ -24,10 +24,15 @@ func main() {
 	}
 }
 
-func resources() (vfs.CopyDir, error) {
+func resources() (vfs.CopyDir, afero.Fs, error) {
 	var embeddedFs = ricefs.NewFs(rice.MustFindBox("res"))
 	var osFs = afero.NewBasePathFs(afero.NewOsFs(), "./res")
-	return vfs.NewCopyDir(vfs.NewFallbackFs(osFs, embeddedFs))
+	var fs = vfs.NewFallbackFs(osFs, embeddedFs)
+	copy, err := vfs.NewCopyDir(fs)
+	if err != nil {
+		return nil, nil, err
+	}
+	return copy, fs, nil
 }
 
 func run() error {
@@ -35,7 +40,7 @@ func run() error {
 	cons := &gut.Console{}
 	log.SetOutput(io.MultiWriter(log.Writer(), cons))
 
-	res, err := resources()
+	res, resFs, err := resources()
 	if err != nil {
 		return err
 	}
@@ -107,7 +112,7 @@ func run() error {
 	defer fps.Destroy()
 
 	game := &game{}
-	err = game.Init(disp, settings, res, cons, fps)
+	err = game.Init(disp, settings, res, resFs, cons, fps)
 	if err != nil {
 		return err
 	}