added method trade to Parser

src/ch/zhaw/catan/Parser.java

@@ -54,22 +54,15 @@ public class Parser {
     }
 
     public Command getAction() {
-    switch (textIO.newEnumInputReader(Command.class).read("What would you like to do?")) {
-        case NEXTPLAYER:
-            return NEXTPLAYER;
-        case BUILDSETTLEMENT:
-            return BUILDSETTLEMENT;
-        case BUILDCITY:
-            return BUILDCITY;
-        case BUILDROAD:
-            return BUILDROAD;
-        case TRADEWITHBANK:
-            return TRADEWITHBANK;
-        case QUIT:
-            return QUIT;
-        default:
-            return null;
+        return textIO.newEnumInputReader(Command.class).read("What would you like to do?");
+    }
+
+    public Config.Resource trade(boolean give) {
+        String output = "give";
+        if (!give){
+            output = "receive";
         }
+        return textIO.newEnumInputReader(Config.Resource.class).read("Which Resource would you like to " + give );
     }
 }