From a10c798afd5f18301ce85f4ad9f2fac3393eb2d8 Mon Sep 17 00:00:00 2001
From: Jan Philipp Timme <jan.philipp@timme.it>
Date: Tue, 11 Nov 2014 14:24:49 +0100
Subject: [PATCH] Add comments and add/remove method to Credit class.

---
 .../spacescooter/gui/Credits.java             | 34 +++++++++++++++++--
 1 file changed, 32 insertions(+), 2 deletions(-)

diff --git a/src/de/teamteamteam/spacescooter/gui/Credits.java b/src/de/teamteamteam/spacescooter/gui/Credits.java
index 930a580..92bd006 100644
--- a/src/de/teamteamteam/spacescooter/gui/Credits.java
+++ b/src/de/teamteamteam/spacescooter/gui/Credits.java
@@ -1,17 +1,47 @@
 package de.teamteamteam.spacescooter.gui;
 
+/**
+ * Static class accounting the credits a player earned during the game.
+ */
 public class Credits {
+	
 	/**
 	 * Credit points for the shop
 	 */
 	private static int credits = 1000;
-
+	
+	
+	/**
+	 * Private constructor.
+	 */
+	private Credits() {	}
+	
+	
+	/**
+	 * Get the current amount of credits.
+	 */
 	public static int getCredits() {
 		return credits;
 	}
 
+	/**
+	 * Set the current amount of credits.
+	 */
 	public static void setCredits(int credits) {
 		Credits.credits = credits;
-		System.out.println(credits);
+	}
+	
+	/**
+	 * Add a number of credits to the credits account.
+	 */
+	public static void add(int credits) {
+		Credits.credits += credits;
+	}
+	
+	/**
+	 * Remove a number of credits to the credits account.
+	 */
+	public static void remove(int credits) {
+		Credits.credits -= credits;
 	}
 }