650 lines
24 KiB
Rust
650 lines
24 KiB
Rust
// This plugin loads "defs.txt" and applies the therein contained commands
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extern crate regex;
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use bevy::prelude::*;
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use bevy_xpbd_3d::prelude::*;
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use bevy::math::DVec3;
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use crate::{actor, nature, world};
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use regex::Regex;
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use std::f32::consts::PI;
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use std::f64::consts::PI as PI64;
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use std::collections::HashMap;
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pub struct CommandsPlugin;
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impl Plugin for CommandsPlugin {
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fn build(&self, app: &mut App) {
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app.add_systems(Startup, load_defs);
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app.add_systems(Update, spawn_entities);
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app.add_event::<SpawnEvent>();
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}
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}
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#[derive(Event)] pub struct SpawnEvent(ParserState);
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#[derive(PartialEq, Clone)]
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enum DefClass {
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Actor,
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Chat,
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None,
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}
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#[derive(Clone)]
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struct ParserState {
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class: DefClass,
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// Generic fields
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name: String,
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chat: String,
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// Actor fields
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id: String,
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pos: DVec3,
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model: String,
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model_scale: f32,
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rotation: Quat,
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angular_momentum: DVec3,
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pronoun: String,
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is_sphere: bool,
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is_player: bool,
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is_lifeform: bool,
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is_alive: bool,
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is_suited: bool,
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is_vehicle: bool,
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has_physics: bool,
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collider_is_mesh: bool,
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thrust_forward: f32,
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thrust_sideways: f32,
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thrust_back: f32,
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reaction_wheels: f32,
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warmup_seconds: f32,
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engine_type: actor::EngineType,
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oxygen: f32,
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mass: f64,
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collider: Collider,
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camdistance: f32,
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suit_integrity: f32,
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light_brightness: f32,
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light_color: Option<Color>,
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// Chat fields
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delay: f64,
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text: String,
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level: String,
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label: String,
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goto: String,
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is_choice: bool,
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stores_item: bool,
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script: String,
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script_parameter: String,
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script_parameter2: String,
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}
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impl Default for ParserState {
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fn default() -> Self {
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let default_actor = actor::Actor::default();
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let default_engine = actor::Engine::default();
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Self {
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class: DefClass::None,
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name: "NONAME".to_string(),
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chat: "".to_string(),
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id: "".to_string(),
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pos: DVec3::new(0.0, 0.0, 0.0),
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model: "".to_string(),
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model_scale: 1.0,
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rotation: Quat::IDENTITY,
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angular_momentum: DVec3::new(0.03, 0.3, 0.09),
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pronoun: "they/them".to_string(),
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is_sphere: false,
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is_player: false,
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is_lifeform: false,
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is_alive: false,
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is_suited: false,
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is_vehicle: false,
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has_physics: true,
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collider_is_mesh: false,
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thrust_forward: default_engine.thrust_forward,
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thrust_sideways: default_engine.thrust_forward,
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thrust_back: default_engine.thrust_back,
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reaction_wheels: default_engine.reaction_wheels,
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warmup_seconds: default_engine.warmup_seconds,
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engine_type: default_engine.engine_type,
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oxygen: nature::OXY_D,
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mass: 1.0,
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collider: Collider::sphere(1.0),
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camdistance: default_actor.camdistance,
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suit_integrity: 1.0,
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light_brightness: 0.0,
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light_color: None,
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delay: 0.0,
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text: "".to_string(),
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level: "chat".to_string(),
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label: "".to_string(),
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goto: "".to_string(),
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is_choice: false,
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stores_item: false,
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script: "".to_string(),
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script_parameter: "".to_string(),
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script_parameter2: "".to_string(),
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}
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}
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}
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impl ParserState {
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fn reset_message(&mut self) {
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let default = ParserState::default();
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self.label = default.label;
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self.delay = default.delay;
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self.goto = default.goto;
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self.level = default.level;
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self.text = default.text;
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self.is_choice = default.is_choice;
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}
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fn as_chatbranch(&self) -> actor::ChatBranch {
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return actor::ChatBranch {
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id: self.chat.clone(),
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name: self.name.clone(),
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label: self.label.clone(),
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delay: self.delay.clone(),
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sound: if self.is_choice { "".to_string() } else { "chat".to_string() },
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level: self.level.clone(),
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reply: if self.is_choice { "".to_string() } else { self.text.clone() },
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choice: if self.is_choice { self.text.clone() } else { "".to_string() },
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goto: self.goto.clone(),
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script: self.script.clone(),
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script_parameter: self.script_parameter.clone(),
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script_parameter2: self.script_parameter2.clone(),
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}
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}
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}
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pub fn load_defs(
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mut ew_spawn: EventWriter<SpawnEvent>,
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) {
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let re1 = Regex::new(r"^\s*([a-z_-]+)\s+(.*)$").unwrap();
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let re2 = Regex::new("\"([^\"]*)\"|(-?[0-9]+[0-9e-]*(?:\\.[0-9e-]+)?)|([a-zA-Z_-][a-zA-Z0-9_-]*)").unwrap();
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let defs_string = include_str!("defs.txt");
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let mut lines = defs_string.lines();
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let mut state = ParserState::default();
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let mut command;
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let mut parameters;
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let mut id2pos: HashMap<String, DVec3> = HashMap::new();
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let mut line_nr = -1;
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while let Some(line) = lines.next() {
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line_nr += 1;
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let caps = re1.captures(line);
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if caps.is_none() {
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if line.trim() != "" {
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error!("Syntax Error in definitions line {}: `{}`", line_nr, line);
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}
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continue;
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}
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if let Some(caps) = caps {
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command = caps.get(1).unwrap().as_str();
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parameters = caps.get(2).unwrap().as_str();
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}
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else {
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error!("Failed to read regex captures in line {}: `{}`", line_nr, line);
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continue;
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}
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let mut parts: Vec<&str> = Vec::new();
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parts.push(command);
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for caps in re2.captures_iter(parameters) {
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if let Some(part) = caps.get(1) {
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parts.push(&part.as_str());
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}
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if let Some(part) = caps.get(2) {
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parts.push(&part.as_str());
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}
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if let Some(part) = caps.get(3) {
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parts.push(&part.as_str());
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}
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}
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match parts.as_slice() {
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// Parsing actors
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["actor", x, y, z, model] => {
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ew_spawn.send(SpawnEvent(state));
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state = ParserState::default();
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state.class = DefClass::Actor;
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state.model = model.to_string();
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if let (Ok(x_float), Ok(y_float), Ok(z_float)) =
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(x.parse::<f64>(), y.parse::<f64>(), z.parse::<f64>()) {
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state.pos = DVec3::new(x_float, y_float, z_float);
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}
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else {
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error!("Can't parse coordinates as floats in def: {line}");
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state = ParserState::default();
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continue;
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}
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}
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["relativeto", id] => {
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match id2pos.get(&id.to_string()) {
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Some(pos) => {
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state.pos += *pos;
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}
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None => {
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error!("Specified `relativeto` command but could not find id `{id}`");
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continue;
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}
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}
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}
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["orbit", radius_str, phase_str] => {
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if let (Ok(r), Ok(phase)) = (radius_str.parse::<f64>(), phase_str.parse::<f64>()) {
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let phase_deg = phase * PI64 * 2.0;
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state.pos = DVec3::new(
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state.pos.x + r * phase_deg.cos(),
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state.pos.y,
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state.pos.z + r * phase_deg.sin(),
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);
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}
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else {
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error!("Can't parse float: {line}");
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continue;
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}
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}
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["sphere", "yes"] => {
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state.is_sphere = true;
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}
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["id", id] => {
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state.id = id.to_string();
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id2pos.insert(state.id.clone(), state.pos.clone());
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}
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["alive", "yes"] => {
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state.is_alive = true;
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state.is_lifeform = true;
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state.is_suited = true;
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}
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["vehicle", "yes"] => {
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state.is_vehicle = true;
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}
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["moon", "yes"] => {
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state.model_scale *= 3.0;
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}
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["oxygen", amount] => {
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if let Ok(amount) = amount.parse::<f32>() {
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state.is_lifeform = true;
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state.is_suited = true;
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state.oxygen = amount;
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}
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else {
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error!("Can't parse float: {line}");
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continue;
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}
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}
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["pronoun", pronoun] => {
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state.pronoun = pronoun.to_string();
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}
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["chatid", chat] => {
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state.chat = chat.to_string();
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}
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["scale", scale] => {
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if let Ok(scale_float) = scale.parse::<f32>() {
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state.model_scale = scale_float;
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}
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else {
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error!("Can't parse float: {line}");
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continue;
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}
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}
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["radius", radius] => {
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// like scale, just doubled size
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if let Ok(radius_float) = radius.parse::<f32>() {
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state.model_scale = 2.0 * radius_float;
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}
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else {
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error!("Can't parse float: {line}");
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continue;
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}
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}
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["rotationx", rotation_x] => {
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if let Ok(rotation_x_float) = rotation_x.parse::<f32>() {
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state.rotation *= Quat::from_rotation_x(PI * rotation_x_float);
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}
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else {
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error!("Can't parse float: {line}");
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continue;
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}
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}
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["rotationy", rotation_y] => {
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if let Ok(rotation_y_float) = rotation_y.parse::<f32>() {
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state.rotation *= Quat::from_rotation_y(PI * rotation_y_float);
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}
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else {
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error!("Can't parse float: {line}");
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continue;
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}
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}
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["rotationz", rotation_z] => {
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if let Ok(rotation_z_float) = rotation_z.parse::<f32>() {
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state.rotation *= Quat::from_rotation_z(PI * rotation_z_float);
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}
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else {
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error!("Can't parse float: {line}");
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continue;
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}
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}
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["angularmomentum", x, y, z] => {
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if let (Ok(x_float), Ok(y_float), Ok(z_float)) =
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(x.parse::<f64>(), y.parse::<f64>(), z.parse::<f64>()) {
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state.angular_momentum = DVec3::new(x_float, y_float, z_float);
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}
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else {
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error!("Can't parse float: {line}");
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continue;
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}
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}
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["thrust", forward, back, sideways, reaction_wheels, warmup_time] => {
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if let (Ok(forward_float), Ok(back_float), Ok(sideways_float), Ok(reaction_wheels_float), Ok(warmup_time_float)) = (forward.parse::<f32>(), back.parse::<f32>(), sideways.parse::<f32>(), reaction_wheels.parse::<f32>(), warmup_time.parse::<f32>()) {
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state.thrust_forward = forward_float;
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state.thrust_back = back_float;
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state.thrust_sideways = sideways_float;
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state.reaction_wheels = reaction_wheels_float;
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state.warmup_seconds = warmup_time_float;
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}
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}
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["engine", "rocket"] => {
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state.engine_type = actor::EngineType::Rocket;
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}
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["engine", "ion"] => {
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state.engine_type = actor::EngineType::Ion;
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}
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["engine", "monopropellant"] => {
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state.engine_type = actor::EngineType::Monopropellant;
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}
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["health", value] => {
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if let Ok(value_float) = value.parse::<f32>() {
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state.suit_integrity = value_float;
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}
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else {
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error!("Can't parse float: {line}");
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continue;
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}
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}
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["mass", value] => {
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if let Ok(value_float) = value.parse::<f64>() {
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state.mass = value_float;
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}
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else {
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error!("Can't parse float: {line}");
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continue;
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}
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}
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["physics", "off"] => {
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state.has_physics = false;
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}
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["collider", "sphere", radius] => {
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if let Ok(radius_float) = radius.parse::<f64>() {
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state.collider = Collider::sphere(radius_float);
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}
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else {
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error!("Can't parse float: {line}");
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continue;
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}
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}
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["collider", "capsule", height, radius] => {
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if let (Ok(height_float), Ok(radius_float)) = (height.parse::<f64>(), radius.parse::<f64>()) {
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state.collider = Collider::capsule(height_float, radius_float);
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}
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else {
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error!("Can't parse float: {line}");
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continue;
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}
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}
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["collider", "mesh"] => {
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state.collider_is_mesh = true;
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}
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["player", "yes"] => {
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state.is_player = true;
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state.is_alive = true;
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}
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["camdistance", value] => {
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if let Ok(value_float) = value.parse::<f32>() {
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state.camdistance = value_float;
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}
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else {
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error!("Can't parse float: {line}");
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continue;
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}
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}
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["light", color_hex, brightness] => {
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if let Ok(brightness_float) = brightness.parse::<f32>() {
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if let Ok(color) = Color::hex(color_hex) {
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state.light_color = Some(color);
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state.light_brightness = brightness_float;
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}
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else {
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error!("Can't parse hexadecimal color code: {line}");
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continue;
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}
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}
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else {
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error!("Can't parse float: {line}");
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continue;
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}
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}
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// Parsing chats
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["chat", chat_name] => {
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debug!("Registering chat: {}", chat_name);
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ew_spawn.send(SpawnEvent(state));
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state = ParserState::default();
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state.class = DefClass::Chat;
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state.chat = chat_name.to_string();
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}
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["name", name] => {
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debug!("Registering name: {}", name);
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state.name = name.to_string();
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}
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["msg", sleep, text] => {
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debug!("Registering message (sleep={}): {}", sleep, text);
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ew_spawn.send(SpawnEvent(state.clone()));
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if let Ok(sleep_float) = sleep.parse::<f64>() {
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state.delay = sleep_float;
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state.text = text.to_string();
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state.stores_item = true;
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state.is_choice = false;
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} else {
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error!("The 'sleep' value for this message is not a float: {}", line);
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continue;
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}
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}
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["msg", sleep, label, goto, text] => {
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debug!("Registering message (sleep={}): {}", sleep, text);
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ew_spawn.send(SpawnEvent(state.clone()));
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state.reset_message();
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if let Ok(sleep_float) = sleep.parse::<f64>() {
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state.delay = sleep_float;
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state.text = text.to_string();
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state.stores_item = true;
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state.is_choice = false;
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state.goto = goto.to_string();
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state.label = label.to_string();
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} else {
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error!("The 'sleep' value for this message is not a float: {}", line);
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continue;
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}
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}
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["choice", sleep, text] => {
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debug!("Registering choice (sleep={}): {}", sleep, text);
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ew_spawn.send(SpawnEvent(state.clone()));
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state.reset_message();
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if let Ok(sleep_float) = sleep.parse::<f64>() {
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state.delay = sleep_float;
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state.text = text.to_string();
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state.stores_item = true;
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state.is_choice = true;
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} else {
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error!("The 'sleep' value for this message is not a float: {}", line);
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continue;
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}
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}
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["choice", sleep, label, goto, text] => {
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debug!("Registering choice (sleep={}): {}", sleep, text);
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ew_spawn.send(SpawnEvent(state.clone()));
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state.reset_message();
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if let Ok(sleep_float) = sleep.parse::<f64>() {
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state.delay = sleep_float;
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state.text = text.to_string();
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state.stores_item = true;
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state.is_choice = true;
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state.goto = goto.to_string();
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state.label = label.to_string();
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} else {
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error!("The 'sleep' value for this message is not a float: {}", line);
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continue;
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}
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}
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["goto", label] => {
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debug!("Registering goto: {}", label);
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state.goto = label.to_string();
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}
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["label", label] => {
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debug!("Registering label: {}", label);
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state.label = label.to_string();
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}
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["lvl", level] => {
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debug!("Registering level: {}", level);
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state.level = level.to_string();
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}
|
|
["script", scriptname, parameter] => {
|
|
state.script = scriptname.to_string();
|
|
state.script_parameter = parameter.to_string();
|
|
state.script_parameter2 = "".to_string();
|
|
}
|
|
["script", scriptname, parameter, parameter2] => {
|
|
state.script = scriptname.to_string();
|
|
state.script_parameter = parameter.to_string();
|
|
state.script_parameter2 = parameter2.to_string();
|
|
}
|
|
_ => {
|
|
error!("No match for [{}]", parts.join(","));
|
|
}
|
|
}
|
|
}
|
|
ew_spawn.send(SpawnEvent(state));
|
|
}
|
|
|
|
fn spawn_entities(
|
|
mut er_spawn: EventReader<SpawnEvent>,
|
|
mut commands: Commands,
|
|
asset_server: Res<AssetServer>,
|
|
mut meshes: ResMut<Assets<Mesh>>,
|
|
mut materials: ResMut<Assets<StandardMaterial>>,
|
|
) {
|
|
for state_wrapper in er_spawn.read() {
|
|
let state = &state_wrapper.0;
|
|
if state.class == DefClass::Chat {
|
|
if state.stores_item {
|
|
commands.spawn(state.as_chatbranch());
|
|
}
|
|
}
|
|
else if state.class == DefClass::Actor {
|
|
let mut actor = commands.spawn_empty();
|
|
actor.insert(actor::Actor {
|
|
id: state.id.clone(),
|
|
camdistance: state.camdistance,
|
|
..default()
|
|
});
|
|
actor.insert(Position::from(state.pos));
|
|
actor.insert(Rotation::from(state.rotation));
|
|
if state.is_sphere {
|
|
let sphere_texture_handle: Handle<Image> = asset_server.load(format!("textures/{}.jpg", state.model));
|
|
let sphere_handle = meshes.add(Sphere::default().mesh().uv(128, 128));
|
|
let sphere_material_handle = materials.add(StandardMaterial {
|
|
base_color_texture: Some(sphere_texture_handle.clone()),
|
|
perceptual_roughness: 1.0,
|
|
metallic: 0.0,
|
|
..default()
|
|
});
|
|
actor.insert(PbrBundle {
|
|
mesh: sphere_handle,
|
|
material: sphere_material_handle,
|
|
transform: Transform {
|
|
scale: Vec3::splat(state.model_scale),
|
|
..default()
|
|
},
|
|
..default()
|
|
});
|
|
} else {
|
|
actor.insert(SceneBundle {
|
|
transform: Transform {
|
|
scale: Vec3::splat(state.model_scale),
|
|
..default()
|
|
},
|
|
scene: asset_server.load(world::asset_name_to_path(state.model.as_str())),
|
|
..default()
|
|
});
|
|
}
|
|
|
|
// Physics Parameters
|
|
if state.has_physics {
|
|
let fix_scale: f64 = 1.0 / (state.model_scale as f64).powf(3.0);
|
|
actor.insert(RigidBody::Dynamic);
|
|
actor.insert(AngularVelocity(state.angular_momentum));
|
|
actor.insert(ColliderDensity((state.mass * fix_scale) as f64));
|
|
if state.collider_is_mesh {
|
|
actor.insert(AsyncSceneCollider::new(Some(
|
|
ComputedCollider::TriMesh
|
|
//ComputedCollider::ConvexDecomposition(VHACDParameters::default())
|
|
)));
|
|
}
|
|
else {
|
|
actor.insert(state.collider.clone());
|
|
}
|
|
}
|
|
// TODO: angular velocity for objects without collisions, static objects
|
|
|
|
// Optional Components
|
|
if state.is_player {
|
|
actor.insert(actor::Player);
|
|
actor.insert(actor::PlayerCamera);
|
|
}
|
|
if state.is_player || state.is_vehicle {
|
|
// used to apply mouse movement to actor rotation
|
|
actor.insert(ExternalTorque::ZERO.with_persistence(false));
|
|
}
|
|
if state.is_lifeform {
|
|
actor.insert(actor::LifeForm::default());
|
|
actor.insert(actor::Suit {
|
|
oxygen: state.oxygen,
|
|
oxygen_max: nature::OXY_D,
|
|
integrity: state.suit_integrity,
|
|
..default()
|
|
});
|
|
}
|
|
if let Some(color) = state.light_color {
|
|
actor.insert(PointLightBundle {
|
|
point_light: PointLight {
|
|
intensity: state.light_brightness,
|
|
color: color,
|
|
range: 100.0,
|
|
radius: 100.0,
|
|
..default()
|
|
},
|
|
..default()
|
|
});
|
|
}
|
|
if !state.chat.is_empty() {
|
|
actor.insert(actor::Talker {
|
|
conv_id: state.chat.clone(),
|
|
..default()
|
|
});
|
|
}
|
|
if state.is_vehicle {
|
|
actor.insert(actor::Vehicle::default());
|
|
}
|
|
if state.is_vehicle || state.is_suited {
|
|
actor.insert(actor::Engine {
|
|
thrust_forward: state.thrust_forward,
|
|
thrust_back: state.thrust_back,
|
|
thrust_sideways: state.thrust_sideways,
|
|
reaction_wheels: state.reaction_wheels,
|
|
warmup_seconds: state.warmup_seconds,
|
|
engine_type: state.engine_type,
|
|
..default()
|
|
});
|
|
}
|
|
}
|
|
}
|
|
}
|