// This method is an event listener. It will be called when an item tooltip is rendered.
// The ItemTooltipEvent parameter contains the original tooltip data.
public void OnItemTooltip(ItemTooltipEvent evt)
{
// Check if the item is not null. Also checks if the tooltip already has price info.
// In this case, -1 means there is no price data in the tooltip.
if (evt.Item != null && evt.MoneyToShow == -1)
{
// Uses bookcase's ItemUtils to get the price of the item.
int price = ItemUtils.GetSellPrice(evt.Item, true);
// Checks if the item actually has a sell value.
if (price > 0)
{
// Changes the amount of money shown on the tooltip to reflect the price.
// The money symbol graphic is already part of the vanilla tooltip. It's normally just disabled (-1).
// By changing this value to something greater than 0, the info becomes visible.
evt.MoneyToShow = price;
}
}
}