use filepath.Base

engine/asset.go

@@ -5,6 +5,7 @@ import (
 	"encoding/gob"
 	"io/fs"
 	"os"
+	"path/filepath"
 )
 
 type assetKey struct {
@@ -12,6 +13,7 @@ type assetKey struct {
 	path   string
 }
 
+// LoadGobz gunzips and gob-decodes a component from a file from a FS.
 func LoadGobz(dst interface{}, assets fs.FS, path string) error {
 	f, err := assets.Open(path)
 	if err != nil {
@@ -28,7 +30,7 @@ func LoadGobz(dst interface{}, assets fs.FS, path string) error {
 // SaveGobz takes an object, gob-encodes it, gzips it, and writes to disk.
 // This requires running on something with a disk to write to (not JS)
 func SaveGobz(src interface{}, name string) error {
-	f, err := os.CreateTemp(".", name)
+	f, err := os.CreateTemp(".", filepath.Base(name))
 	if err != nil {
 		return err
 	}

main.go

@@ -145,7 +145,7 @@ func writeLevel1() {
 		},
 	}
 
-	if err := engine.SaveGobz(level1, "level1.gobz"); err != nil {
+	if err := engine.SaveGobz(level1, "game/assets/level1.gobz"); err != nil {
 		log.Fatalf("Couldn't save level1.gobz: %v", err)
 	}