public void BuyItem(int index, int amount, NpcTrading npc)
{
if (health.current > 0 &&
0 <= index && index < npc.saleItems.Length)
{
// valid amount?
Item item = new Item(npc.saleItems[index]);
if (1 <= amount && amount <= item.maxStack)
{
long price = item.buyPrice * amount;
// player has enough gold and enough space in inventory?
if (inventory.gold >= price && inventory.CanAdd(item, amount))
{
// pay for it, add to inventory
inventory.gold -= price;
inventory.Add(item, amount);
}
}
}
}
public void SellItem(int index, int amount, NpcTrading npc)
{
if (health.current > 0 &&
0 <= index && index < inventory.slots.Count)
{
// sellable?
ItemSlot slot = inventory.slots[index];
if (slot.amount > 0 && slot.item.sellable)
{
// valid amount?
if (1 <= amount && amount <= slot.amount)
{
// sell the amount
long price = slot.item.sellPrice * amount;
inventory.gold += price;
slot.DecreaseAmount(amount);
inventory.slots[index] = slot;
}
}
}
}
void Update()
{
GameObject player = Player.player;
if (!player)
{
return;
}
PlayerInteraction interaction = player.GetComponent <PlayerInteraction>();
PlayerInventory inventory = player.GetComponent <PlayerInventory>();
PlayerNpcTrading trading = player.GetComponent <PlayerNpcTrading>();
if (interaction.current != null && ((MonoBehaviour)interaction.current).GetComponent <NpcTrading>() != null)
{
panel.SetActive(true);
NpcTrading npc = ((MonoBehaviour)interaction.current).GetComponent <NpcTrading>();
// items for sale
UIUtils.BalancePrefabs(slotPrefab.gameObject, npc.saleItems.Length, content);
for (int i = 0; i < npc.saleItems.Length; ++i)
{
UINpcTradingSlot slot = content.GetChild(i).GetComponent <UINpcTradingSlot>();
ScriptableItem itemData = npc.saleItems[i];
// show item in UI
int icopy = i;
slot.button.onClick.SetListener(() => {
buyIndex = icopy;
});
slot.image.color = Color.white;
slot.image.sprite = itemData.image;
slot.tooltip.enabled = true;
slot.tooltip.text = new ItemSlot(new Item(itemData)).ToolTip(); // with slot for {AMOUNT}
}
// buy
if (buyIndex != -1 && buyIndex < npc.saleItems.Length)
{
ScriptableItem itemData = npc.saleItems[buyIndex];
// make valid amount, calculate price
int amount = buyAmountInput.text.ToInt();
amount = Mathf.Clamp(amount, 1, itemData.maxStack);
long price = amount * itemData.buyPrice;
// show buy panel with item in UI
buyAmountInput.text = amount.ToString();
buySlot.GetComponent <Image>().color = Color.white;
buySlot.GetComponent <Image>().sprite = itemData.image;
buySlot.GetComponent <UIShowToolTip>().enabled = true;
buySlot.GetComponent <UIShowToolTip>().text = new Item(itemData).ToolTip();
buyCostsText.text = price.ToString();
buyButton.interactable = amount > 0 && price <= inventory.gold &&
inventory.CanAdd(new Item(itemData), amount);
buyButton.onClick.SetListener(() => {
trading.BuyItem(buyIndex, amount, npc);
buyIndex = -1;
buyAmountInput.text = "1";
});
}
else
{
// show default buy panel in UI
buySlot.GetComponent <Image>().color = Color.clear;
buySlot.GetComponent <Image>().sprite = null;
buySlot.GetComponent <UIShowToolTip>().enabled = false;
buyCostsText.text = "0";
buyButton.interactable = false;
}
// sell
if (sellIndex != -1 && sellIndex < inventory.slots.Count &&
inventory.slots[sellIndex].amount > 0)
{
ItemSlot itemSlot = inventory.slots[sellIndex];
// make valid amount, calculate price
int amount = sellAmountInput.text.ToInt();
amount = Mathf.Clamp(amount, 1, itemSlot.amount);
long price = amount * itemSlot.item.sellPrice;
// show sell panel with item in UI
sellAmountInput.text = amount.ToString();
sellSlot.GetComponent <Image>().color = Color.white;
sellSlot.GetComponent <Image>().sprite = itemSlot.item.image;
sellSlot.GetComponent <UIShowToolTip>().enabled = true;
sellSlot.GetComponent <UIShowToolTip>().text = itemSlot.ToolTip();
sellCostsText.text = price.ToString();
sellButton.interactable = amount > 0;
sellButton.onClick.SetListener(() => {
trading.SellItem(sellIndex, amount, npc);
sellIndex = -1;
sellAmountInput.text = "1";
});
}
else
{
// show default sell panel in UI
sellSlot.GetComponent <Image>().color = Color.clear;
sellSlot.GetComponent <Image>().sprite = null;
sellSlot.GetComponent <UIShowToolTip>().enabled = false;
sellCostsText.text = "0";
sellButton.interactable = false;
}
}
else
{
panel.SetActive(false);
}
}
