Class cleanup.

src/engine/objects/Mine.java

@@ -401,18 +401,17 @@ public class Mine extends AbstractGameObject {
 
         playerGuild = playerCharacter.getGuild();
 
+        // Can't claim something if you don't have a guild!
+
         if (playerGuild.isEmptyGuild())
             return false;
 
         if (playerGuild.getNation().isEmptyGuild())
             return false;
 
-        //Get a count of nation mines, can't go over capital tol rank.
+       // Guild must own a city to hold a mine.
-        City nationCapitol = playerGuild.getNation().getOwnedCity();
-        City guildCity = playerGuild.getOwnedCity();
 
-        if (nationCapitol == null)
+        City guildCity = playerGuild.getOwnedCity();
-            return false;
 
         if (guildCity == null)
             return false;
@@ -422,6 +421,10 @@ public class Mine extends AbstractGameObject {
             return false;
         }
 
+        // Number of mines is based on the rank of the nation's tree.
+
+        City nationCapitol = playerGuild.getNation().getOwnedCity();
+
         Building nationCapitolTOL = nationCapitol.getTOL();
 
         if (nationCapitolTOL == null)

src/engine/powers/poweractions/ClaimMinePowerAction.java

@@ -27,9 +27,9 @@ public class ClaimMinePowerAction extends AbstractPowerAction {
 	}
 
 	@Override
-	protected void _startAction(AbstractCharacter source, AbstractWorldObject awo, Vector3fImmutable targetLoc, int trains, ActionsBase ab, PowersBase pb) {
+	protected void _startAction(AbstractCharacter source, AbstractWorldObject worldObject, Vector3fImmutable targetLoc, int trains, ActionsBase ab, PowersBase pb) {
 
-		if (source == null || awo == null)
+		if (source == null || worldObject == null)
 			return;
 
 		if (!(source.getObjectType().equals(Enum.GameObjectType.PlayerCharacter)))
@@ -37,10 +37,10 @@ public class ClaimMinePowerAction extends AbstractPowerAction {
 
 		PlayerCharacter playerCharacter = (PlayerCharacter) source;
 
-		if (!(awo.getObjectType().equals(Enum.GameObjectType.Building)))
+		if (!(worldObject.getObjectType().equals(Enum.GameObjectType.Building)))
 			return;
 
-		Building mineBuilding = (Building)awo;
+		Building mineBuilding = (Building)worldObject;
 
 		if (mineBuilding.getRank() > 0)
 			return;