Contract moved to AbstractCharacter.

Arty tower restricted to a single tower captain.

src/engine/objects/AbstractCharacter.java

@@ -117,9 +117,10 @@ public abstract class AbstractCharacter extends AbstractWorldObject {
 	private long lastHateUpdate = 0;
 	private boolean collided = false;
 	protected Regions lastRegion = null;
-	
+
 	protected boolean movingUp = false;
-	
+	public Contract contract;
+
 
 	/**
 	 * No Id Constructor

src/engine/objects/Contract.java

@@ -254,10 +254,16 @@ public class Contract extends AbstractGameObject {
 		 if (this.allowedBuildings.size() == 0)
 			 return false;
 
+		 // Restrict arty towers to a single captain
+
+		 if (this.getContractID() == 842) // Tower Arty Captain
+			 for (AbstractCharacter hireling : building.getHirelings().keySet())
+				 if (hireling.contract.getContractID() == 842)
+					 return false;
+
 		 // Binary match
 		 return (building.getBlueprint().getBuildingGroup().elementOf(this.allowedBuildings));
-
-     }
+	 }
 
 	public int getEquipmentSet() {
 		return equipmentSet;

src/engine/objects/Mob.java

@@ -65,7 +65,6 @@ public class Mob extends AbstractIntelligenceAgent {
     public int spawnTime;
     public Zone parentZone;
     public Building building;
-    public Contract contract;
     public boolean hasLoot = false;
     public boolean isPlayerGuard = false;
     public AbstractCharacter npcOwner;

src/engine/objects/NPC.java

@@ -52,7 +52,7 @@ public class NPC extends AbstractCharacter {
 	protected MobBase mobBase;
 	protected String name;
 	public Building building;
-	protected Contract contract;
+
 	protected int dbID;
 	protected int currentID;
 	private DateTime upgradeDateTime = null;