KF2-CustomTraderInventory/CTI/Classes/Trader.uc

class Trader extends Object
	abstract;

private delegate int ByPrice(class<KFWeaponDefinition> A, class<KFWeaponDefinition> B)
{
	return A.default.BuyPrice > B.default.BuyPrice ? -1 : 0;
}

public static function KFGFxObject_TraderItems GetTraderItems(optional KFGameReplicationInfo KFGRI = None, optional E_LogLevel LogLevel = LL_Trace)
{
	local String TraderItemsPath;
	
	if (KFGRI == None)
	{
		TraderItemsPath = class'KFGameReplicationInfo'.default.TraderItemsPath;
	}
	else
	{
		TraderItemsPath = KFGRI.TraderItemsPath;
	}
	
	return KFGFxObject_TraderItems(DynamicLoadObject(TraderItemsPath, class'KFGFxObject_TraderItems'));
}

public static function Array<class<KFWeaponDefinition> > GetTraderWeapDefs(optional KFGameReplicationInfo KFGRI = None,optional E_LogLevel LogLevel = LL_Trace)
{
	local Array<class<KFWeaponDefinition> > KFWeapDefs;
	local KFGFxObject_TraderItems TraderItems;
	local STraderItem Item;
	
	TraderItems = GetTraderItems(KFGRI, LogLevel);
	
	foreach TraderItems.SaleItems(Item)
	{
		if (Item.WeaponDef != None)
		{
			KFWeapDefs.AddItem(Item.WeaponDef);
		}
	}
	
	return KFWeapDefs;
}

public static function Array<class<KFWeapon> > GetTraderWeapons(optional KFGameReplicationInfo KFGRI = None,optional E_LogLevel LogLevel = LL_Trace)
{
	local Array<class<KFWeapon> > KFWeapons;
	local class<KFWeapon> KFWeapon;
	local KFGFxObject_TraderItems TraderItems;
	local STraderItem Item;
	
	TraderItems = GetTraderItems(KFGRI, LogLevel);
	
	foreach TraderItems.SaleItems(Item)
	{
		if (Item.WeaponDef != None)
		{
			KFWeapon = class<KFWeapon> (DynamicLoadObject(Item.WeaponDef.default.WeaponClassPath, class'Class'));
			if (KFWeapon != None)
			{
				KFWeapons.AddItem(KFWeapon);
			}
		}
	}
	
	return KFWeapons;
}

public static function Array<class<KFWeaponDefinition> > GetTraderWeapDefsDLC(KFGameReplicationInfo KFGRI, E_LogLevel LogLevel)
{
	local KFGFxObject_TraderItems TraderItems;
	local STraderItem Item;
	local Array<class<KFWeaponDefinition> > WeapDefs;
	
	`Log_TraceStatic();
	
	TraderItems = GetTraderItems(KFGRI, LogLevel);
	
	foreach TraderItems.SaleItems(Item)
	{
		if (Item.WeaponDef != None && Item.WeaponDef.default.SharedUnlockId != SCU_None)
		{
			WeapDefs.AddItem(Item.WeaponDef);
		}
	}
	
	return WeapDefs;
}

public static simulated function ModifyTrader(
	KFGameReplicationInfo KFGRI,
	Array<class<KFWeaponDefinition> > RemoveItems,
	Array<class<KFWeaponDefinition> > AddItems,
	bool ReplaceMode,
	E_LogLevel LogLevel)
{
	local KFGFxObject_TraderItems TraderItems;
	local STraderItem Item;
	local class<KFWeaponDefinition> WeapDef;
	local Array<class<KFWeaponDefinition> > WeapDefs;
	local int Index;
	local int MaxItemID;
	
	`Log_TraceStatic();
	
	TraderItems = GetTraderItems(KFGRI, LogLevel);
	
	if (!ReplaceMode)
	{
		foreach TraderItems.SaleItems(Item)
		{
			if (Item.WeaponDef != None
			&& RemoveItems.Find(Item.WeaponDef) == INDEX_NONE
			&& WeaponClassIsUnique(Item.WeaponDef.default.WeaponClassPath, AddItems, LogLevel))
			{
				WeapDefs.AddItem(Item.WeaponDef);
			}
		}
	}
	
	for (Index = 0; Index < AddItems.Length; ++Index)
	{
		WeapDefs.AddItem(AddItems[Index]);
	}
	
	WeapDefs.Sort(ByPrice);
	
	TraderItems.SaleItems.Length = 0;
	MaxItemID = 0;
	foreach WeapDefs(WeapDef)
	{
		Item.WeaponDef = WeapDef;
		Item.ItemID = ++MaxItemID;
		TraderItems.SaleItems.AddItem(Item);
	}

	TraderItems.SetItemsInfo(TraderItems.SaleItems);
	
	KFGRI.TraderItems = TraderItems;
}

private static function bool WeaponClassIsUnique(String WeaponClassPath, Array<class<KFWeaponDefinition> > WeapDefs, E_LogLevel LogLevel)
{
	local class<KFWeaponDefinition> WeapDef;
	
	`Log_TraceStatic();
	
	foreach WeapDefs(WeapDef)
	{
		if (WeapDef.default.WeaponClassPath == WeaponClassPath)
		{
			return false;
		}
	}
	
	return true;
}

defaultproperties
{
	
}