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|
use crate::{
components::Inventory,
ItemId,
Encyclopedia
};
#[derive(Debug, Clone, PartialEq)]
pub struct Exchange {
pub cost: Vec<ItemId>,
pub offer: Vec<ItemId>
}
impl Exchange {
pub fn show(&self) -> String {
format!(
"offer: [{}], price: [{}]",
self.offer.iter().map(|i| i.0.clone()).collect::<Vec<String>>().join(", "),
self.cost.iter().map(|i| i.0.clone()).collect::<Vec<String>>().join(", ")
)
}
pub fn can_trade(&self, inventory: &Inventory) -> bool {
if self.offer.len() as isize - self.cost.len() as isize > inventory.capacity as isize - inventory.items.len() as isize{
return false;
}
let mut costs = self.cost.clone();
for entry in inventory.items.iter() {
if let Some(pos) = costs.iter().position(|x| *x == entry.itemid){
costs.remove(pos);
}
}
costs.is_empty()
}
pub fn trade(&self, inventory: &mut Inventory, enc: &Encyclopedia) {
for item in self.cost.iter() {
let pos = inventory.items.iter().position(|entry| entry.itemid == item.clone()).unwrap();
inventory.items.remove(pos);
}
for item in self.offer.iter() {
inventory.add_item(item.clone(), enc);
}
}
}
|
