Struct Economy 

pub struct Economy {
    pub tax_system: TaxSystem,
    /* private fields */
}

The global economy — tracks supply, demand, and prices for all items.

Fields

tax_system: TaxSystem

Implementations

impl Economy

pub fn new() -> Self

pub fn register_item( &mut self, item_id: impl Into<String>, base_price_copper: u64, )

Register an item with a base price (in copper).

pub fn current_price(&self, item_id: &str) -> Option<u64>

Get the current equilibrium price for an item (in copper).

pub fn current_price_currency(&self, item_id: &str) -> Option<Currency>

Get the current price as Currency.

pub fn average_price(&self, item_id: &str) -> Option<f32>

Get the moving average price for an item.

pub fn demand_factor(&self, item_id: &str) -> f32

Get the demand factor for an item.

pub fn record_sale(&mut self, item_id: &str, qty: u32, _price_copper: u64)

Record a sale event (player buys item), increasing demand pressure.

pub fn record_purchase(&mut self, item_id: &str, qty: u32)

Record a supply event (item produced or imported), increasing supply pressure.

pub fn update_prices(&mut self, dt: f32)

Update all item prices based on supply/demand, called each game tick.

pub fn price_modifier( &self, item_id: &str, player_rep_factor: f32, ) -> PriceModifier

Build a PriceModifier for an item and player reputation factor.

pub fn register_defaults(&mut self)

Populate the economy with default items and prices.

Trait Implementations

impl Clone for Economy

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Economy

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Economy

fn default() -> Self

Returns the “default value” for a type.