literustlib_server 0.4.0

Rust server for LiteNetLib
Documentation 
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const BAD_THRESHOLD: u16 = 1000;
const BAD_STRIKE_MUL: u16 = 4;

pub struct BadnessFilter {
    addresses: std::collections::HashMap<core::net::IpAddr, u16>,
    is_enabled: bool,
}

impl BadnessFilter {
    pub fn new(enable: bool) -> Self {
        Self {
            addresses: std::collections::HashMap::new(),
            is_enabled: enable,
        }
    }

    pub fn is_bad(&self, addr: core::net::SocketAddr) -> bool {
        if !self.is_enabled { return false; }
        if let Some(badness) = self.addresses.get(&addr.ip()) {
            *badness > BAD_THRESHOLD
        } else {
            false
        }
    }

    pub fn tick(&mut self) {
        if !self.is_enabled { return; }
        for val in self.addresses.values_mut() {
            *val = val.saturating_sub(1);
        }
    }

    pub fn strike(&mut self, addr: core::net::SocketAddr) {
        if !self.is_enabled { return; }
        if let Some(badness) = self.addresses.get_mut(&addr.ip()) {
            *badness = badness.saturating_mul(BAD_STRIKE_MUL);
        } else {
            self.addresses.insert(addr.ip(), BAD_STRIKE_MUL);
        }
    }

    pub fn reset(&mut self, addr: core::net::SocketAddr) {
        if !self.is_enabled { return; }
        if let Some(badness) = self.addresses.get_mut(&addr.ip()) {
            *badness = 1;
        }
    }
}