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Teppy
2024-05-21 17:55:05 -04:00
parent d97116a701
commit 9e29ce2ada
1 changed files with 24 additions and 10 deletions
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34
src/main.rs
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@@ -1,3 +1,5 @@
#![allow(unsafe_code)]
use std::collections::HashMap;
use std::cmp::Ordering;
use std::cmp::min;
@@ -143,17 +145,22 @@ impl Market {
}
fn make_offer(&mut self, owner:i32, sell_type:i32, buy_type:i32, sell_qty_initial:FiNum, buy_qty_initial:FiNum) -> bool // Dollars, Bitcoin, 64000, 1
{
if self.traders[owner as usize].get_balance(sell_type)<sell_qty_initial { return false; }
let initial_balance=self.traders[owner as usize].get_balance(sell_type);
if initial_balance<sell_qty_initial { return false; }
// println!("INITIAL_BALANCE {} Selling {} {} to buy {} {}",initial_balance,sell_qty_initial,self.number_to_name(sell_type),buy_qty_initial,self.number_to_name(buy_type));
let mut buy_qty=buy_qty_initial;
let ap=(buy_type,sell_type);
while buy_qty>FiNum::new(0) && self.offers.contains_key(&ap) && self.offers.get(&ap).unwrap().v.len()>0 {
let elt=&mut self.offers.get_mut(&ap).unwrap().v[0];
if sell_qty_initial/buy_qty_initial>=elt.buy_qty/elt.sell_qty { // Transact at ask_rate
// println!("Transacting at {}/{}, not at {}/{}",elt.buy_qty,elt.sell_qty,sell_qty_initial,buy_qty_initial);
let qty=std::cmp::min(elt.sell_remain,buy_qty);
// println!("Transacting {} at {}/{}, not at {}/{}. Elt.sell_remain is {}",qty,elt.buy_qty,elt.sell_qty,sell_qty_initial,buy_qty_initial,elt.sell_remain);
elt.sell_remain-=qty;
buy_qty-=qty;
let pay_qty=qty*elt.buy_qty/elt.sell_qty;
let pay_qty=qty*elt.buy_qty/elt.sell_qty; // 1.8499*194623/2.9744
// println!("qty {} * elt.buy_qty {} / elt.sell_qty {} = pay_qty {} ",qty,elt.buy_qty,elt.sell_qty,pay_qty);
// println!("qty {} * elt.buy_qty {} = pay_qty {} ",qty,elt.buy_qty, qty*elt.buy_qty);
// println!("Pay_qty is {}. Buy_qty is now {}. Balance is {}",pay_qty,buy_qty,self.traders[owner as usize].get_balance(sell_type));
self.traders[owner as usize].sub_balance(sell_type,pay_qty);
self.traders[owner as usize].add_balance(buy_type ,qty);
self.traders[elt.owner as usize].add_balance(sell_type,pay_qty);
@@ -261,24 +268,31 @@ fn main() {
let luni =m.register_trader("Luni");
let usd =m.register_asset("USD");
let btc =m.register_asset("BTC");
m.add_trader_balance(teppy,btc,100.into());
m.add_trader_balance(luni ,usd,1000000.into());
for i in 1..=1000000 {
m.add_trader_balance(teppy,btc,100000.into());
m.add_trader_balance(luni ,usd,650000000.into());
let mut count=0;
let mut tries=0;
for i in 1..=10000000 {
let seller=if rng.gen_bool(0.5) { teppy } else { luni };
let (buy_type,sell_type,buy_qty,sell_qty):(i32,i32,FiNum,FiNum);
if rng.gen_bool(0.5) {
sell_type=btc;
buy_type=usd;
sell_qty=rng.gen_range(1..=5).into();
buy_qty=sell_qty*rng.gen_range(60000..=70000).into();
buy_qty=sell_qty*rng.gen_range(60..=70).into();
} else {
sell_type=usd;
buy_type=btc;
buy_qty=rng.gen_range(1..=5).into();
sell_qty=buy_qty*rng.gen_range(60000..=70000).into();
sell_qty=buy_qty*rng.gen_range(60..=70).into();
}
m.make_offer(seller,sell_type,buy_type,sell_qty,buy_qty);
let mut success=false;
if m.make_offer(seller,sell_type,buy_type,sell_qty,buy_qty) { count+=1; success=true; };
// println!("{} selling {} {} to buy {} {}, {}",seller,sell_qty,m.number_to_name(sell_type),buy_qty,m.number_to_name(buy_type),if success { "success" } else { "failure" });
if count>=1000000 { break; }
tries+=1;
}
m.dump();
println!("Tries: {} Trades: {}",tries,count);
// m.dump();
m.sanity_check();
}