added trader.slotdisabled to trader gui

I just copied what was done to display the trader.insufficient and added trader.slotdisabled to en_US.lang

src/main/java/noppes/npcs/client/gui/player/GuiNPCTrader.java

@@ -117,6 +117,10 @@ public class GuiNPCTrader extends GuiContainerNPCInterface{
 					this.fontRendererObj.drawString(title, (xSize - fontRendererObj.getStringWidth(title))/2, 131, 0xDD0000);
 		        	GL11.glTranslatef(0, 0, -300);
 				}
+				else if (!container.isSlotEnabled(slot, player)) {
+					String title = StatCollector.translateToLocal("trader.slotdisabled");
+					this.fontRendererObj.drawString(title, (xSize - fontRendererObj.getStringWidth(title))/2, 131, 0x00DD00);
+				}
 				else{
 		        	String title = StatCollector.translateToLocal("trader.sufficient");
 					this.fontRendererObj.drawString(title, (xSize - fontRendererObj.getStringWidth(title))/2, 131, 0x00DD00);

src/main/java/noppes/npcs/containers/ContainerNPCTrader.java

@@ -62,6 +62,8 @@ public class ContainerNPCTrader extends ContainerNpcInterface{
         	return null;
         if(!canBuy(i, entityplayer))
         	return null;
+        if (!isSlotEnabled(i, entityplayer)) 
+        	return null;
         NoppesUtilPlayer.consumeItem(entityplayer, role.inventoryCurrency.getStackInSlot(i), role.ignoreDamage, role.ignoreNBT);
         NoppesUtilPlayer.consumeItem(entityplayer, role.inventoryCurrency.getStackInSlot(i + 18), role.ignoreDamage, role.ignoreNBT);
         ItemStack soldItem = item.copy();
@@ -70,12 +72,14 @@ public class ContainerNPCTrader extends ContainerNpcInterface{
         return soldItem;
     	
     }
+    public boolean isSlotEnabled(int slot, EntityPlayer player) {
+    	return role.disableSlot[slot] == 0; 
+    }
     public boolean canBuy(int slot, EntityPlayer player) {
 		ItemStack currency = role.inventoryCurrency.getStackInSlot(slot);
 		ItemStack currency2 = role.inventoryCurrency.getStackInSlot(slot + 18);
 		if(currency == null && currency2 == null)
 			return true;
-		if (role.disableSlot[slot] > 0) return false; 
 		if(currency == null){
 			currency = currency2;
 			currency2 = null;

src/main/java/noppes/npcs/scripted/roles/ScriptRoleTrader.java

@@ -1,10 +1,11 @@
 package noppes.npcs.scripted.roles;
 
+import foxz.utils.Market;
 import noppes.npcs.entity.EntityNPCInterface;
 import noppes.npcs.roles.RoleTrader;
 import noppes.npcs.scripted.ScriptItemStack;
 import noppes.npcs.scripted.constants.RoleType;
-import foxz.utils.Market;
+import noppes.npcs.scripted.interfaces.IPlayer;
 
 public class ScriptRoleTrader extends ScriptRoleInterface{
 	private RoleTrader role;
@@ -106,6 +107,11 @@ public class ScriptRoleTrader extends ScriptRoleInterface{
 		return role.purchases[slot];
 	}
 	
+	public int getPurchaseNum(int slot, IPlayer player) {
+		// TODO get purchase num by player
+		return -1;
+	}
+	
 	/**
 	 * Sets the purchase count of all slots to 0
 	 */