diff --git a/cmd/game/main.go b/cmd/game/main.go
index 2470fb6..0f2d9da 100644
--- a/cmd/game/main.go
+++ b/cmd/game/main.go
@@ -89,6 +89,7 @@ func main() {
 	}
 
 	escDown := false
+
 	// game loop
 	for core.Running() {
 		if core.KeyStates()[sdl.SCANCODE_ESCAPE] != 0 {
diff --git a/engine/level/level.go b/engine/level/level.go
index dabf591..e3f0e07 100644
--- a/engine/level/level.go
+++ b/engine/level/level.go
@@ -38,12 +38,14 @@ var (
 	}
 )
 
+// Set sets the current level.
 func Set(level *Level) {
 	currentLevel = level
 	currentLevelWidth = int(level.Width)
 	currentLevelHeight = int(level.Height)
 }
 
+// Load reads a level from the given path.
 func Load(path string) (*Level, error) {
 	b, err := os.ReadFile(path)
 	if err != nil {
diff --git a/engine/textures/register.go b/engine/textures/register.go
index debba6b..b4117a8 100644
--- a/engine/textures/register.go
+++ b/engine/textures/register.go
@@ -33,6 +33,7 @@ var (
 	colorTextures = make([]*sdl.Texture, 0xffffff)
 )
 
+// Register adds a texture to the registry to be used later.
 func Register(texturepath string, key Key) *Texture {
 	t := unregistered(texturepath)