extra sanity checks for claiming an abandoned tree

src/engine/net/client/handlers/ClaimAssetMsgHandler.java

@@ -17,9 +17,8 @@ import engine.mbEnums.BuildingGroup;
 import engine.net.client.ClientConnection;
 import engine.net.client.msg.ClaimAssetMsg;
 import engine.net.client.msg.ClientNetMsg;
-import engine.objects.Blueprint;
-import engine.objects.Building;
-import engine.objects.PlayerCharacter;
+import engine.net.client.msg.ErrorPopupMsg;
+import engine.objects.*;
 import org.pmw.tinylog.Logger;
 
 import java.util.concurrent.locks.ReentrantReadWriteLock;
@@ -111,9 +110,9 @@ public class ClaimAssetMsgHandler extends AbstractClientMsgHandler {
             // Can't claim a tree if your guild already owns one
             // *** Refactor : Send error to player here
 
-            if ((sourcePlayer.getGuild().isNation()) &&
-                    (blueprint.getBuildingGroup() == BuildingGroup.TOL))
+            if(blueprint.getBuildingGroup() == BuildingGroup.TOL && !validateTreeClaim(sourcePlayer)){
                 return true;
+            }
 
             // Process the transfer of the building(s)
 
@@ -135,4 +134,24 @@ public class ClaimAssetMsgHandler extends AbstractClientMsgHandler {
         return true;
     }
 
+    private boolean validateTreeClaim(PlayerCharacter sourcePlayer) {
+
+        if(sourcePlayer.guild.equals(Guild.getErrantGuild())) {
+            ErrorPopupMsg.sendErrorMsg(sourcePlayer, "Errant Players Cannot Claim Cities!");
+            return false;
+        }
+
+        if(sourcePlayer.guild.getOwnedCity() != null) {
+            ErrorPopupMsg.sendErrorMsg(sourcePlayer, "Your Guild Already Owns A City!");
+            return false;
+        }
+
+        if(!GuildStatusController.isGuildLeader(sourcePlayer.getGuildStatus())) {
+            ErrorPopupMsg.sendErrorMsg(sourcePlayer, "Only A Guild Leader Can Claim A Tree Of Life!");
+            return false;
+        }
+
+        return true;
+    }
+
 }