Player added methods and javadoc

src/ch/zhaw/catan/Player.java

@@ -1,6 +1,7 @@
 package ch.zhaw.catan;
 
 import java.util.HashMap;
+import java.util.List;
 
 /**
  * New Class PLayer
@@ -31,31 +32,79 @@ public class Player {
 
     /**
      * This method returns all the resources the player has at the moment
-     * @return HashMap
+     * @return HashMap with the count of every resource
      */
     public HashMap<Config.Resource,Integer> getResources() {
         return resources;
     }
 
+    /**
+     * This method adds a specific resource to resourcess
+     * @param resource to add
+     * @param numberToAdd how much to add
+     */
+    public void addResource(Config.Resource resource, int numberToAdd) {
+        resources.put(resource, resources.get(resource) + numberToAdd);
+    }
 
+    /**
+     * This method substracts a specific resource from resourcess but check first if player has enough resources.
+     * @param resource to substract
+     * @param numberToTake how much to substract
+     * @return true if resource has been substracted false if player has not enough resources
+     */
+    public boolean substractResource(Config.Resource resource, int numberToTake) {
+        int inPossesion = resources.get(resource);
+        if(inPossesion - numberToTake < 0) {
+            return false;
+        }
+        resources.put(resource,inPossesion - numberToTake);
+        return true;
+    }
+
+    /**
+     * This method has to be used when a player wants to build a road. It checks if a player has enough roads
+     * and resources to build one more. If player is able to build, the method substract the buildcost from the resources
+     * in possesion by the player.
+     * @return true if road can be created false if road can't be created
+     */
     public boolean buildRoad() {
-        if (roadsToUse > 0) {
-            roadsToUse--;
+        List<Config.Resource> costs = Config.Structure.ROAD.getCosts();
+        if ( roadsToUse == 0 || !checkRessourceToBuild(costs)) {
+            return false;
+        }
+        for (Config.Resource resource : costs) {
+            resources.put(resource,resources.get(resource)-1);
+        }
         return true;
     }
-        return false;
-
-    }
-
 
+    /**
+     * This method has to be used when a player wants to build a settlement. It checks if a player has enough roads
+     * and resources to build one more. If player is able to build, the method substract the buildcost from the resources
+     * in possesion by the player.
+     * @return true if road can be created false if road can't be created
+     */
     public boolean buildSettlement() {
-        if (settlementsToUse > 0) {
-            settlementsToUse--;
-            return true;
-        }
+        List<Config.Resource> costs = Config.Structure.SETTLEMENT.getCosts();
+        if ( settlementsToUse == 0 || !checkRessourceToBuild(costs)) {
             return false;
         }
+        for (Config.Resource resource : costs) {
+            resources.put(resource,resources.get(resource)-1);
+        }
+        return true;
+    }
 
-
+   //returns true if player has enough resources else false
+    private boolean checkRessourceToBuild(List<Config.Resource> liste) {
+        for (Config.Resource resource : liste) {
+            int possesion = resources.get(resource);
+            if (possesion == 0) {
+                return false;
+            }
+        }
+        return true;
+    }
 
 }