Simple site simulation with combat
hheik
commit
8bba930fbd
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@ -0,0 +1 @@
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/target
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@ -0,0 +1,190 @@
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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version = 3
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[[package]]
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||||
name = "adventure_sim"
|
||||
version = "0.1.0"
|
||||
dependencies = [
|
||||
"bincode",
|
||||
"enum_dispatch",
|
||||
"fastrand",
|
||||
"serde",
|
||||
"uuid",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "bincode"
|
||||
version = "1.3.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "b1f45e9417d87227c7a56d22e471c6206462cba514c7590c09aff4cf6d1ddcad"
|
||||
dependencies = [
|
||||
"serde",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "cfg-if"
|
||||
version = "1.0.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
|
||||
|
||||
[[package]]
|
||||
name = "enum_dispatch"
|
||||
version = "0.3.12"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8f33313078bb8d4d05a2733a94ac4c2d8a0df9a2b84424ebf4f33bfc224a890e"
|
||||
dependencies = [
|
||||
"once_cell",
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "fastrand"
|
||||
version = "2.0.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "25cbce373ec4653f1a01a31e8a5e5ec0c622dc27ff9c4e6606eefef5cbbed4a5"
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||||
|
||||
[[package]]
|
||||
name = "getrandom"
|
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version = "0.2.12"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "190092ea657667030ac6a35e305e62fc4dd69fd98ac98631e5d3a2b1575a12b5"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
"libc",
|
||||
"wasi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "libc"
|
||||
version = "0.2.153"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "9c198f91728a82281a64e1f4f9eeb25d82cb32a5de251c6bd1b5154d63a8e7bd"
|
||||
|
||||
[[package]]
|
||||
name = "once_cell"
|
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version = "1.19.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
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||||
|
||||
[[package]]
|
||||
name = "ppv-lite86"
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version = "0.2.17"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5b40af805b3121feab8a3c29f04d8ad262fa8e0561883e7653e024ae4479e6de"
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||||
|
||||
[[package]]
|
||||
name = "proc-macro2"
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version = "1.0.78"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e2422ad645d89c99f8f3e6b88a9fdeca7fabeac836b1002371c4367c8f984aae"
|
||||
dependencies = [
|
||||
"unicode-ident",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "quote"
|
||||
version = "1.0.35"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "291ec9ab5efd934aaf503a6466c5d5251535d108ee747472c3977cc5acc868ef"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "rand"
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||||
version = "0.8.5"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "34af8d1a0e25924bc5b7c43c079c942339d8f0a8b57c39049bef581b46327404"
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||||
dependencies = [
|
||||
"libc",
|
||||
"rand_chacha",
|
||||
"rand_core",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "rand_chacha"
|
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version = "0.3.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
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||||
dependencies = [
|
||||
"ppv-lite86",
|
||||
"rand_core",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "rand_core"
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||||
version = "0.6.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
|
||||
dependencies = [
|
||||
"getrandom",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "serde"
|
||||
version = "1.0.197"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "3fb1c873e1b9b056a4dc4c0c198b24c3ffa059243875552b2bd0933b1aee4ce2"
|
||||
dependencies = [
|
||||
"serde_derive",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "serde_derive"
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version = "1.0.197"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "7eb0b34b42edc17f6b7cac84a52a1c5f0e1bb2227e997ca9011ea3dd34e8610b"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
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||||
]
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||||
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[[package]]
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||||
name = "syn"
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version = "2.0.52"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "b699d15b36d1f02c3e7c69f8ffef53de37aefae075d8488d4ba1a7788d574a07"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"unicode-ident",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "unicode-ident"
|
||||
version = "1.0.12"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
|
||||
|
||||
[[package]]
|
||||
name = "uuid"
|
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version = "1.7.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f00cc9702ca12d3c81455259621e676d0f7251cec66a21e98fe2e9a37db93b2a"
|
||||
dependencies = [
|
||||
"getrandom",
|
||||
"rand",
|
||||
"serde",
|
||||
"uuid-macro-internal",
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||||
]
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||||
|
||||
[[package]]
|
||||
name = "uuid-macro-internal"
|
||||
version = "1.7.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "7abb14ae1a50dad63eaa768a458ef43d298cd1bd44951677bd10b732a9ba2a2d"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasi"
|
||||
version = "0.11.0+wasi-snapshot-preview1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
|
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@ -0,0 +1,13 @@
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[package]
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name = "adventure_sim"
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||||
version = "0.1.0"
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edition = "2021"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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bincode = "1.3.3"
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enum_dispatch = "0.3.12"
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fastrand = "2.0.1"
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serde = { version = "1.0.197", features = [ "serde_derive" ] }
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uuid = { version = "1.7.0", features = [ "v4", "fast-rng", "macro-diagnostics", "serde" ] }
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@ -0,0 +1,372 @@
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use std::{
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collections::{HashMap, HashSet},
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fmt::Display,
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num::NonZeroUsize,
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ops::Sub,
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time::Duration,
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};
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use enum_dispatch::enum_dispatch;
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use serde::{Deserialize, Serialize};
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use uuid::Uuid;
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const SAVE_FILE: &'static str = "world.bin";
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fn main() {
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let mut world = match std::fs::read(SAVE_FILE) {
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Ok(data) => bincode::deserialize(&data).unwrap(),
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Err(_) => {
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let mut world = World::default();
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let mut site = Site::new(
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"Gorbo's Keep",
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fastrand::usize(1..5)
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.try_into()
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.expect("Generated site with size of 0"),
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);
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site.populate_randomly();
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world.sites.push(site);
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std::fs::write("world.bin", bincode::serialize(&world).unwrap()).unwrap();
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world
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}
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};
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for site in world.sites.iter() {
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println!("{site}")
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}
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let mut input = String::new();
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loop {
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std::io::stdin().read_line(&mut input).unwrap();
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if vec!["q", "quit", "exit"]
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.iter()
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.any(|quit_cmd| input.trim() == *quit_cmd)
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{
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break;
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}
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let start = std::time::Instant::now();
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world.advance_time(Duration::from_secs(3600));
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let end = std::time::Instant::now();
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println!("World tick: {}us", end.sub(start).as_micros());
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}
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}
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#[derive(Debug, Default, Serialize, Deserialize)]
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pub struct World {
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pub sites: Vec<Site>,
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}
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impl World {
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pub fn advance_time(&mut self, time: Duration) {
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for site in self.sites.iter_mut() {
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site.advance_time(time);
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}
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}
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}
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#[derive(Debug, Serialize, Deserialize)]
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pub struct Site {
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pub name: String,
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areas: Vec<SiteArea>,
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accumulated_time: Duration,
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}
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impl Site {
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#[inline]
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const fn minimum_tick() -> Duration {
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Duration::from_secs(3600)
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}
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fn inner_tick(&mut self) {
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for area in self.areas.iter_mut() {
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match resolve_combat(&area.population, 600) {
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Some(results) => {
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for death in results.kills {
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area.population
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.retain(|creature| creature.uuid != death.killed);
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}
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}
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None => {
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// If no combat, there is a chance of migration to other areas
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}
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}
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}
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println!("Tick! {}", self);
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}
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pub fn areas(&self) -> &Vec<SiteArea> {
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self.areas.as_ref()
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}
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pub fn areas_mut(&mut self) -> &mut Vec<SiteArea> {
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self.areas.as_mut()
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}
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pub fn populate_randomly(&mut self) {
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let area_count = self.areas.len();
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{
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let min_count = area_count;
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let max_count = (5 + (area_count - 1) * 3).max(min_count);
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for _ in 0..fastrand::usize(min_count..=max_count) {
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let area_t = fastrand::f32().powi(2);
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let index = (area_t * (area_count - 1) as f32).round() as usize;
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self.areas
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.get_mut(index)
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.expect("Creature generation index for depth is out of bounds")
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.population
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.push(Creature::new(CreatureData::Bandit(Bandit::default())))
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}
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}
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{
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let min_count = 0;
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let max_count = area_count.max(min_count);
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for _ in 0..fastrand::usize(min_count..=max_count) {
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let area_t = 1.0 - fastrand::f32().powi(2);
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let index = (area_t * (area_count - 1) as f32).round() as usize;
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self.areas
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.get_mut(index)
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.expect("Creature generation index for depth is out of bounds")
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.population
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.push(Creature::new(CreatureData::Spider(Spider::default())))
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}
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}
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}
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pub fn new(name: &str, size: NonZeroUsize) -> Self {
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Self {
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name: name.into(),
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areas: vec![SiteArea::default(); size.get()],
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accumulated_time: Duration::default(),
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}
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}
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pub fn advance_time(&mut self, time: Duration) {
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self.accumulated_time += time;
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while self.accumulated_time >= Self::minimum_tick() {
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self.inner_tick();
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self.accumulated_time -= Self::minimum_tick();
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}
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}
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/// Finds a creature with given uuid, removes it from the site and returns it with ownership
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pub fn remove_by_uuid(&mut self, creature_uuid: Uuid) -> Option<Creature> {
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for area in self.areas.iter_mut() {
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for i in 0..area.population.len() {
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if area.population[i].uuid == creature_uuid {
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return Some(area.population.swap_remove(i));
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}
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}
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}
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None
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}
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}
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impl Display for Site {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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write!(f, "site \"{}\" [", self.name)?;
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for (index, area) in self.areas.iter().enumerate() {
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write!(f, "\n\tarea {} [", index)?;
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for creature in area.population.iter() {
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write!(f, "\n\t\t{}", creature)?;
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}
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if area.population.len() > 0 {
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write!(f, "\n\t")?;
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}
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write!(f, "]")?;
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}
|
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if !self.areas.is_empty() {
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write!(f, "\n")?;
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}
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write!(f, "]")
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}
|
||||
}
|
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|
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#[derive(Clone, Debug, Default, Serialize, Deserialize)]
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pub struct SiteArea {
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pub population: Vec<Creature>,
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}
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#[derive(Clone, Eq, PartialEq, Hash, Debug, Serialize, Deserialize)]
|
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pub struct Creature {
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pub uuid: Uuid,
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pub data: CreatureData,
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}
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|
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impl Display for Creature {
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||||
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
||||
write!(f, "{} [{}]", self.data.species_id(), self.uuid)
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||||
}
|
||||
}
|
||||
|
||||
impl Creature {
|
||||
pub fn new(data: CreatureData) -> Self {
|
||||
Self {
|
||||
uuid: Uuid::new_v4(),
|
||||
data,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[enum_dispatch(CreatureData)]
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||||
pub trait CreatureImpl {
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||||
fn species_id(&self) -> String;
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||||
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||||
fn initiative_modifier(&self) -> i8 {
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||||
0
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||||
}
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fn threat_rating(&self) -> u8 {
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1
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||||
}
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fn ally_predicate(&self, other: &dyn CreatureImpl) -> bool {
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self.species_id() == other.species_id()
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}
|
||||
}
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#[derive(Clone, Debug, Eq, PartialEq, Hash, Serialize, Deserialize)]
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#[enum_dispatch]
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pub enum CreatureData {
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Bandit(Bandit),
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Spider(Spider),
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}
|
||||
|
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#[derive(Clone, Debug, Default, Eq, PartialEq, Hash, Serialize, Deserialize)]
|
||||
pub struct Bandit {}
|
||||
|
||||
impl CreatureImpl for Bandit {
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||||
fn species_id(&self) -> String {
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||||
"bandit".into()
|
||||
}
|
||||
fn threat_rating(&self) -> u8 {
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||||
2
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Clone, Debug, Default, Eq, PartialEq, Hash, Serialize, Deserialize)]
|
||||
pub struct Spider {}
|
||||
|
||||
impl CreatureImpl for Spider {
|
||||
fn species_id(&self) -> String {
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||||
"spider".into()
|
||||
}
|
||||
fn threat_rating(&self) -> u8 {
|
||||
4
|
||||
}
|
||||
fn initiative_modifier(&self) -> i8 {
|
||||
1
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct KillData {
|
||||
pub killed: Uuid,
|
||||
pub killer: Uuid,
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct CombatResults {
|
||||
pub kills: Vec<KillData>,
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
struct CombatState {
|
||||
initiative: i8,
|
||||
health: u8,
|
||||
damage: u8,
|
||||
alive: bool,
|
||||
enemies: HashSet<Uuid>,
|
||||
}
|
||||
|
||||
impl CombatState {
|
||||
pub fn from_creature(creature: &Creature) -> Self {
|
||||
Self {
|
||||
initiative: fastrand::i8(1..=4).saturating_add(creature.data.initiative_modifier()),
|
||||
health: creature.data.threat_rating(),
|
||||
damage: creature.data.threat_rating(),
|
||||
alive: true,
|
||||
enemies: HashSet::new(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub fn resolve_combat(combatants: &Vec<Creature>, max_rounds: u16) -> Option<CombatResults> {
|
||||
let mut participants: HashMap<Uuid, CombatState> = HashMap::new();
|
||||
for index_1 in 0..combatants.len() {
|
||||
for index_2 in (index_1 + 1)..combatants.len() {
|
||||
if index_1 == index_2 {
|
||||
continue;
|
||||
}
|
||||
let c1 = &combatants[index_1];
|
||||
let c2 = &combatants[index_2];
|
||||
let is_enemy = !c1.data.ally_predicate(&c2.data) || !c2.data.ally_predicate(&c1.data);
|
||||
if is_enemy {
|
||||
if !participants.contains_key(&c1.uuid) {
|
||||
participants.insert(c1.uuid, CombatState::from_creature(&c1));
|
||||
}
|
||||
if !participants.contains_key(&c2.uuid) {
|
||||
participants.insert(c2.uuid, CombatState::from_creature(&c2));
|
||||
}
|
||||
participants
|
||||
.get_mut(&c1.uuid)
|
||||
.unwrap()
|
||||
.enemies
|
||||
.insert(c2.uuid);
|
||||
participants
|
||||
.get_mut(&c2.uuid)
|
||||
.unwrap()
|
||||
.enemies
|
||||
.insert(c1.uuid);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if participants.is_empty() {
|
||||
// No enemies in group :)
|
||||
return None;
|
||||
}
|
||||
|
||||
// Time for violence
|
||||
let mut order: Vec<_> = participants.iter().collect();
|
||||
order.sort_unstable_by_key(|(_, combat_state)| -combat_state.initiative);
|
||||
let order: Vec<Uuid> = order.iter().map(|(uuid, _)| **uuid).collect();
|
||||
let mut kills: HashMap<Uuid, Uuid> = HashMap::new();
|
||||
|
||||
for _ in 0..max_rounds {
|
||||
let should_continue = participants.iter().any(|(_, combat)| {
|
||||
combat.alive && combat.enemies.iter().any(|uuid| participants[uuid].alive)
|
||||
});
|
||||
if !should_continue {
|
||||
break;
|
||||
}
|
||||
|
||||
for uuid in order.iter() {
|
||||
if !participants[uuid].alive {
|
||||
continue;
|
||||
}
|
||||
let targets: Vec<_> = participants[uuid]
|
||||
.enemies
|
||||
.iter()
|
||||
.filter(|enemy_uuid| participants[*enemy_uuid].alive)
|
||||
.collect();
|
||||
let target = match fastrand::choice(targets.iter()) {
|
||||
Some(target) => **target,
|
||||
None => continue,
|
||||
};
|
||||
let damage = participants[uuid].damage;
|
||||
let enemy = participants.get_mut(&target).unwrap();
|
||||
enemy.health = enemy.health.saturating_sub(fastrand::u8(0..=damage));
|
||||
if enemy.health == 0 {
|
||||
enemy.alive = false;
|
||||
kills.insert(target, *uuid);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Some(CombatResults {
|
||||
kills: kills
|
||||
.iter()
|
||||
.map(|(killed, killer)| KillData {
|
||||
killed: *killed,
|
||||
killer: *killer,
|
||||
})
|
||||
.collect(),
|
||||
})
|
||||
}
|
||||
Loading…
Reference in New Issue