Cleaned up the code and added comments.

main.go

@@ -14,10 +14,12 @@ const eventDbPath = "./event.db"
 var db *Database
 var eventSettings *EventSettings
 
+// Main entry point for the application.
 func main() {
 	rand.Seed(time.Now().UnixNano())
 	initDb()
 
+	// Run the webserver and DS packet listener in goroutines and use the main one for the arena state machine.
 	go ServeWebInterface()
 	listener, err := DsPacketListener()
 	checkErr(err)
@@ -26,6 +28,7 @@ func main() {
 	mainArena.Run()
 }
 
+// Opens the database and stores a handle to it in a global variable.
 func initDb() {
 	var err error
 	db, err = OpenDatabase(eventDbPath)
@@ -34,6 +37,7 @@ func initDb() {
 	checkErr(err)
 }
 
+// Logs and exits the application if the given error is not nil.
 func checkErr(err error) {
 	if err != nil {
 		log.Fatalln("Error: ", err)