1 files changed, 5 insertions, 0 deletions
diff --git a/app.go b/app.go
index b124f4c..458e9af 100644
--- a/app.go
+++ b/app.go
@@ -15,6 +15,8 @@ const (
 	WINDOW_TITLE = "stlscope"
 )
 
+// App contains data about the OpenGL application including for example the
+// window, OpenGL graphics and the current STL model.
 type App struct {
 	window *glfw.Window
 	graphics *Graphics
@@ -22,6 +24,7 @@ type App struct {
 	homeTrafo mgl32.Mat4
 }
 
+// newApp creates a new App struct based on a given STL model.
 func newApp(stl *StlModel) App {
 
 	var app App = App{}
@@ -53,6 +56,7 @@ func newApp(stl *StlModel) App {
 	return app
 }
 
+// handle has to be called frequently to let the App work.
 func (application *App) handle() {
 	glfw.PollEvents()
 	application.window.SwapBuffers()
@@ -65,6 +69,7 @@ func (application *App) handle() {
 	application.graphics.setTrafo(trafo)
 }
 
+// terminate closes the App.
 func (application App) terminate() {
 	glfw.Terminate()
 }