implement conditions on choices

src/actor.rs

@@ -2,7 +2,7 @@ use bevy::prelude::*;
 use bevy_xpbd_3d::prelude::*;
 use bevy::scene::SceneInstance;
 use bevy::math::DVec3;
-use crate::{actor, audio, camera, chat, commands, effects, hud, nature, settings, world};
+use crate::{actor, audio, camera, chat, commands, effects, hud, nature, var, world};
 
 pub const ENGINE_SPEED_FACTOR: f32 = 30.0;
 const MAX_TRANSMISSION_DISTANCE: f32 = 60.0;
@@ -234,7 +234,7 @@ pub fn update_physics_lifeforms(
 pub fn handle_input(
     mut commands: Commands,
     keyboard_input: Res<ButtonInput<KeyCode>>,
-    mut settings: ResMut<settings::Settings>,
+    mut settings: ResMut<var::Settings>,
     q_talker: Query<(&chat::Talker, &Transform), (Without<actor::Player>, Without<Camera>)>,
     player: Query<Entity, With<actor::Player>>,
     q_camera: Query<&Transform, With<Camera>>,
@@ -424,7 +424,7 @@ fn handle_player_death(
     mut ew_sfx: EventWriter<audio::PlaySfxEvent>,
     mut ew_effect: EventWriter<effects::SpawnEffectEvent>,
     mut log: ResMut<hud::Log>,
-    mut settings: ResMut<settings::Settings>,
+    mut settings: ResMut<var::Settings>,
 ) {
     for death in er_playerdies.read() {
         if settings.god_mode {
@@ -472,7 +472,7 @@ fn handle_player_death(
 fn handle_damage(
     mut ew_playerdies: EventWriter<PlayerDiesEvent>,
     mut q_hp: Query<(&mut HitPoints, Option<&Player>), Changed<HitPoints>>,
-    settings: Res<settings::Settings>,
+    settings: Res<var::Settings>,
 ) {
     for (mut hp, player_maybe) in &mut q_hp {
         if player_maybe.is_some() {

src/audio.rs

@@ -1,6 +1,6 @@
 use bevy::prelude::*;
 use bevy::audio::{PlaybackMode, Volume};
-use crate::settings;
+use crate::var;
 
 const ASSET_CLICK: &str = "sounds/click-button-140881-crop.ogg";
 const ASSET_SWITCH: &str = "sounds/typosonic-typing-192811-crop.ogg";
@@ -59,7 +59,7 @@ pub enum Sfx {
 
 pub fn setup(
     mut commands: Commands,
-    settings: Res<settings::Settings>,
+    settings: Res<var::Settings>,
     asset_server: Res<AssetServer>,
 ) {
     commands.spawn((
@@ -132,7 +132,7 @@ pub fn toggle_bgm(
     keyboard_input: Res<ButtonInput<KeyCode>>,
     mut evwriter_toggle: EventWriter<ToggleMusicEvent>,
     mut evwriter_sfx: EventWriter<PlaySfxEvent>,
-    mut settings: ResMut<settings::Settings>,
+    mut settings: ResMut<var::Settings>,
 ) {
     if keyboard_input.just_pressed(KeyCode::KeyT) {
         settings.mute_music ^= true;
@@ -148,7 +148,7 @@ pub fn toggle_bgm(
 
 pub fn play_sfx(
     mut commands: Commands,
-    settings: Res<settings::Settings>,
+    settings: Res<var::Settings>,
     mut events_sfx: EventReader<PlaySfxEvent>,
     sound_click: Res<SoundClick>,
     sound_switch: Res<SoundSwitch>,
@@ -200,7 +200,7 @@ pub fn str2sfx(sfx_label: &str) -> Sfx {
 pub fn update_music(
     mut events: EventReader<ToggleMusicEvent>,
     bgm_controller: Query<&AudioSink, With<ComponentBGM>>,
-    settings: Res<settings::Settings>,
+    settings: Res<var::Settings>,
 ) {
     if !events.is_empty() {
         events.clear();

src/camera.rs

@@ -8,7 +8,7 @@ use bevy::transform::TransformSystem;
 use bevy::math::{DVec3, DQuat};
 use bevy_xpbd_3d::prelude::*;
 use std::f32::consts::PI;
-use crate::{actor, audio, hud, settings};
+use crate::{actor, audio, hud, var};
 
 pub struct CameraPlugin;
 
@@ -68,7 +68,7 @@ pub fn setup_camera(
 }
 
 pub fn sync_camera_to_player(
-    settings: Res<settings::Settings>,
+    settings: Res<var::Settings>,
     mut q_camera: Query<&mut Transform, (With<Camera>, Without<actor::PlayerCamera>)>,
     q_playercam: Query<(&actor::Actor, &Transform), (With<actor::PlayerCamera>, Without<Camera>)>,
 ) {
@@ -93,7 +93,7 @@ pub fn sync_camera_to_player(
 pub fn update_fov(
     q_player: Query<&actor::ExperiencesGForce, With<actor::Player>>,
     mouse_input: Res<ButtonInput<MouseButton>>,
-    mut settings: ResMut<settings::Settings>,
+    mut settings: ResMut<var::Settings>,
     mut q_camera: Query<&mut Projection, With<Camera>>,
 ) {
     if let (Ok(gforce), Ok(mut projection)) = (q_player.get_single(), q_camera.get_single_mut())
@@ -116,7 +116,7 @@ pub fn update_fov(
 
 pub fn handle_input(
     keyboard_input: Res<ButtonInput<KeyCode>>,
-    mut settings: ResMut<settings::Settings>,
+    mut settings: ResMut<var::Settings>,
     mut ew_sfx: EventWriter<audio::PlaySfxEvent>,
 ) {
     if keyboard_input.just_pressed(settings.key_camera) {
@@ -129,7 +129,7 @@ pub fn handle_input(
 }
 
 fn manage_player_actor(
-    settings: Res<settings::Settings>,
+    settings: Res<var::Settings>,
     mut q_playercam: Query<&mut Visibility, With<actor::PlayerCamera>>,
     mut q_hiddenplayer: Query<(&mut Visibility, &mut Position, &mut Rotation, &mut LinearVelocity, &mut AngularVelocity), (With<actor::Player>, Without<actor::PlayerCamera>)>,
     q_ride: Query<(&Transform, &Position, &Rotation, &LinearVelocity, &AngularVelocity), (With<actor::PlayerDrivesThis>, Without<actor::Player>)>,
@@ -161,7 +161,7 @@ fn manage_player_actor(
 #[allow(clippy::too_many_arguments)]
 pub fn apply_input_to_player(
     time: Res<Time>,
-    settings: Res<settings::Settings>,
+    settings: Res<var::Settings>,
     windows: Query<&Window, With<PrimaryWindow>>,
     mut mouse_events: EventReader<MouseMotion>,
     key_input: Res<ButtonInput<KeyCode>>,

src/chat.rs

@@ -1,4 +1,4 @@
-use crate::{actor, audio, hud, settings, world, effects};
+use crate::{actor, audio, effects, hud, var, world};
 use bevy::prelude::*;
 use bevy::math::DVec3;
 use bevy_xpbd_3d::prelude::*;
@@ -18,6 +18,7 @@ pub const TOKEN_WARN: &str = "warn";
 pub const TOKEN_SLEEP: &str = "sleep";
 pub const TOKEN_SET: &str = "set";
 pub const TOKEN_IF: &str = "if";
+pub const TOKEN_THEN: &str = "then";
 pub const TOKEN_GOTO: &str = "goto";
 pub const TOKEN_LABEL: &str = "label";
 pub const TOKEN_SCRIPT: &str = "script";
@@ -26,13 +27,14 @@ pub const TOKEN_NOWAIT: &str = "nowait";
 
 pub const TOKEN_INCLUDE: &str = "include";
 pub const TOKEN_GOTO_EXIT: &str = "EXIT";
+pub const TOKEN_IF_INLINE: &str = "if ";  // for lines like `- if foo:`
 
 pub const DEFAULT_SOUND: &str = "chat";
 pub const MAX_BRANCH_DEPTH: usize = 64;
 
-pub const CHOICE_TIMER: f64 = 40.0 * settings::DEFAULT_CHAT_SPEED as f64;
+pub const CHOICE_TIMER: f64 = 40.0 * var::DEFAULT_CHAT_SPEED as f64;
 pub const LETTERS_PER_SECOND: f32 = 17.0;
-pub const TALKER_SPEED_FACTOR: f32 = settings::DEFAULT_CHAT_SPEED / LETTERS_PER_SECOND;
+pub const TALKER_SPEED_FACTOR: f32 = var::DEFAULT_CHAT_SPEED / LETTERS_PER_SECOND;
 pub const CHAT_SPEED_MIN_LEN: f32 = 40.0;
 
 pub const NON_CHOICE_TOKENS: &[&str] = &[
@@ -43,6 +45,7 @@ pub const NON_CHOICE_TOKENS: &[&str] = &[
     TOKEN_SLEEP,
     TOKEN_SET,
     TOKEN_IF,
+    TOKEN_THEN,
     TOKEN_GOTO,
     TOKEN_LABEL,
     TOKEN_SCRIPT,
@@ -78,7 +81,7 @@ type ChatPos = Vec<usize>;
 
 #[derive(Component)]
 pub struct Chat {
-    pub id: usize,
+    pub internal_id: usize,
     pub position: ChatPos,
     pub timer: f64,
     pub talker: Talker,
@@ -94,7 +97,8 @@ pub struct Choice {
 #[derive(Component)]
 #[derive(Clone)]
 pub struct Talker {
-    pub conv_id: String,
+    pub chat_name: String,
+    pub actor_id: String,
     pub name: Option<String>,
     pub pronoun: Option<String>,
     pub talking_speed: f32,
@@ -113,12 +117,29 @@ pub enum ChatEvent {
     DespawnAllChoices,
     DespawnAllChats,
     SpawnMessage(String, hud::LogLevel, String),
-    SpawnChoice(String, usize, ChatPos, bool),
+    SpawnChoice(String, usize, ChatPos, bool, Option<String>),
     RunScript(String),
-    Sleep(f64),
+    SleepSeconds(f64),
-    //Script(String, String, String),
+    SetVariable(String),
+    GotoIf(String, ChatPos),
 }
 
+pub struct Extracted {
+    choice_text: Option<String>,
+    nowait: bool,
+    condition: Option<String>,
+}
+impl Default for Extracted {
+    fn default() -> Self {
+        Self {
+            choice_text: None,
+            nowait: false,
+            condition: None,
+        }
+    }
+}
+
+
 // This is the only place where any YAML interaction should be happening.
 #[derive(Resource)]
 pub struct ChatDB(Vec<Value>);
@@ -191,7 +212,9 @@ impl ChatDB {
             for (index, label) in changes {
                 if index < vector.len() {
                     vector.remove(index);
-                    vector.splice(index..index, include_db[&label].iter().cloned());
+                    if let Some(chat) = include_db.get(&label) {
+                        vector.splice(index..index, chat.iter().cloned());
+                    }
                 }
             }
         }
@@ -222,25 +245,38 @@ impl ChatDB {
     // Not acceptable:
     // - `"What's up?"`
     // - `{"goto": "foo"}`
-    // Returns (choice text, sub-conversation branch, nowait flag)
+    fn is_choice(&self, yaml: Option<&Value>) -> bool {
-    fn search_choice(&self, yaml: Option<&Value>) -> Option<(String, Value, bool)> {
+        if let Some(data) = self.extract(yaml) {
+            return data.choice_text.is_some();
+        }
+        return false;
+    }
+
+    fn extract(&self, yaml: Option<&Value>) -> Option<Extracted> {
         let non_choice_tokens = NON_CHOICE_TOKENS.to_vec();
-        let mut result: Option<(String, Value, bool)> = None;
-        let mut nowait = false;
         if let Some(Value::Mapping(map)) = yaml {
+            let mut result: Extracted = Extracted::default();
             for (key, value) in map {
                 if let Value::String(key) = key {
                     if key == TOKEN_NOWAIT && value.as_bool() == Some(true) {
-                        nowait = true;
+                        result.nowait = true;
                     }
-                    if non_choice_tokens.contains(&key.as_str()) {
+                    else if key == TOKEN_IF {
-                        continue;
+                        if let Some(condition) = value.as_str() {
+                            result.condition = Some(condition.to_string());
+                        }
+                    }
+                    else if non_choice_tokens.contains(&key.as_str()) {
+                        // skip over the other non-choice tokens
+                    }
+                    else {
+                        result.choice_text = Some(key.to_string());
                     }
-                    result = Some((key.into(), map[key].clone(), nowait));
                 }
             }
+            return Some(result);
         }
-        return result;
+        return None;
     }
 
     fn search_label_recursively(&self, sequence: &Value, label: &String, mut pos: ChatPos) -> Option<ChatPos> {
@@ -296,7 +332,7 @@ impl ChatDB {
         let mut popped = false;
         let mut seek_past_dialog_choices = false;
         while chat.position.len() > 0 {
-            match self.at(chat.id, &chat.position) {
+            match self.at(chat.internal_id, &chat.position) {
                 None => {
                     chat.position.pop();
                     popped = true;
@@ -307,7 +343,7 @@ impl ChatDB {
                     }
                 },
                 Some(Value::Mapping(map)) => {
-                    if seek_past_dialog_choices && self.search_choice(Some(&Value::Mapping(map))).is_some() {
+                    if seek_past_dialog_choices && self.is_choice(Some(&Value::Mapping(map))) {
                         // we just dropped out of a branch and ended up in a dialog
                         // choice. let's seek past all the choices until we find
                         // the next non-dialog-choice item.
@@ -348,12 +384,12 @@ impl ChatDB {
                         result = Some(Value::String(value_string.into()));
                     }
                     Some(Value::Mapping(mapping)) => {
-                        if let Some((_choicetext, subconversation, _)) = self.search_choice(value) {
+                        result = Some(Value::Mapping(mapping.clone()));
-                            result = Some(Value::Mapping(mapping.clone()));
+                        for value in mapping.values() {
-                            next_pointer = Some(subconversation);
+                            if let Some(list) = value.as_sequence() {
-                        }
+                                next_pointer = Some(Value::Sequence(list.clone()));
-                        else {
+                                break;
-                            result = Some(Value::Mapping(mapping.clone()));
+                            }
                         }
                     }
                     None => {
@@ -379,7 +415,7 @@ impl ChatDB {
     // This includes flow control tokens like "goto", no-op tokens like "label",
     // but not something with a side effect like "script", and especially not "if".
     fn is_skippable(&self, chat: &mut Chat) -> bool {
-        let current_item = self.at(chat.id, &chat.position);
+        let current_item = self.at(chat.internal_id, &chat.position);
         if current_item.is_none() {
             return false;
         }
@@ -405,7 +441,7 @@ impl ChatDB {
         chat: &mut Chat,
         event: &mut EventWriter<ChatEvent>,
     ) -> bool {
-        let current_item = self.at(chat.id, &chat.position);
+        let current_item = self.at(chat.internal_id, &chat.position);
         let mut processed_a_choice = false;
         match current_item {
             Some(Value::String(message)) => {
@@ -416,7 +452,7 @@ impl ChatDB {
                 let mut sound = DEFAULT_SOUND.to_string();
 
                 // Is this a dialog choice?
-                if let Some(_) = self.search_choice(Some(&Value::Mapping(map.clone()))) {
+                if self.is_choice(Some(&Value::Mapping(map.clone()))) {
                     processed_a_choice = true;
                 }
 
@@ -427,12 +463,25 @@ impl ChatDB {
                 for (key, value) in &map {
                     let key = key.as_str();
                     match (key, value) {
-                        (Some(TOKEN_IF), _) => {} // TODO
+                        (Some(TOKEN_IF), Value::String(condition)) => {
+                            let mut pos = chat.position.clone();
+                            pos.push(0);
+                            event.send(ChatEvent::GotoIf(condition.into(), pos));
+                        }
                         (Some(TOKEN_SOUND), Value::String(sound_name)) => {
                             sound = sound_name.clone();
                         }
                         _ => {}
                     }
+
+                    if let Some(key) = key {
+                        if key.starts_with(TOKEN_IF_INLINE) {
+                            let condition: &str = &key[TOKEN_IF_INLINE.len()..];
+                            let mut pos = chat.position.clone();
+                            pos.push(0);
+                            event.send(ChatEvent::GotoIf(condition.into(), pos));
+                        }
+                    }
                 }
 
                 // Second pass
@@ -451,7 +500,9 @@ impl ChatDB {
                             event.send(ChatEvent::SpawnMessage(
                                     message.to_string(), hud::LogLevel::Warning, sound.clone()));
                         }
-                        (Some(TOKEN_SET), _) => {} // TODO
+                        (Some(TOKEN_SET), Value::String(instructions)) => {
+                            event.send(ChatEvent::SetVariable(instructions.to_string()));
+                        }
                         _ => {}
                     }
                 }
@@ -462,11 +513,11 @@ impl ChatDB {
                     match (key, value) {
                         (Some(TOKEN_SLEEP), Value::Number(time)) => {
                             if let Some(time_f64) = time.as_f64() {
-                                event.send(ChatEvent::Sleep(time_f64));
+                                event.send(ChatEvent::SleepSeconds(time_f64));
                             }
                         }
                         (Some(TOKEN_GOTO), Value::String(label)) => {
-                            match self.search_label(chat.id, &label) {
+                            match self.search_label(chat.internal_id, &label) {
                                 Some(pos) => {
                                     chat.position = pos;
                                 }
@@ -517,16 +568,21 @@ impl ChatDB {
             // Spawn choices until we reach a non-choice item or the end of the branch
             let mut key: usize = 0;
             let mut reached_end_of_branch = false;
-            while let Some((choice, _, nowait)) =
+            while let Some(data) = self.extract(self.at(chat.internal_id, &chat.position).as_ref()) {
-                    self.search_choice(self.at(chat.id, &chat.position).as_ref()) {
+                if let Some(choice_text) = data.choice_text {
-                if reached_end_of_branch {
+                    if reached_end_of_branch {
+                        break;
+                    }
+                    let mut goto: Vec<usize> = chat.position.clone();
+                    goto.push(0);
+                    event.send(ChatEvent::SpawnChoice(choice_text,
+                        key, goto, data.nowait, data.condition));
+                    key += 1;
+                    reached_end_of_branch = self.advance_pointer(chat);
+                }
+                else {
                     break;
                 }
-                let mut goto: Vec<usize> = chat.position.clone();
-                goto.push(0);
-                event.send(ChatEvent::SpawnChoice(choice, key, goto, nowait));
-                key += 1;
-                reached_end_of_branch = self.advance_pointer(chat);
             }
         }
     }
@@ -555,10 +611,10 @@ pub fn handle_new_conversations(
             ew_sfx.send(audio::PlaySfxEvent(audio::Sfx::Ping));
             return;
         }
-        match (*chatdb).get_chat_by_id(&event.talker.conv_id) {
+        match (*chatdb).get_chat_by_id(&event.talker.chat_name) {
             Ok(chat_id) => {
                 let mut chat = Chat {
-                    id: chat_id,
+                    internal_id: chat_id,
                     position: vec![0],
                     timer: time.elapsed_seconds_f64(),
                     talker: event.talker.clone(),
@@ -596,10 +652,11 @@ pub fn handle_chat_events(
     mut ew_chatscript: EventWriter<ChatScriptEvent>,
     mut ew_sfx: EventWriter<audio::PlaySfxEvent>,
     mut log: ResMut<hud::Log>,
+    mut vars: ResMut<var::GameVars>,
     q_choices: Query<Entity, With<Choice>>,
     mut q_chats: Query<(Entity, &mut Chat)>,
     time: Res<Time>,
-    settings: Res<settings::Settings>,
+    settings: Res<var::Settings>,
 ) {
     for event in er_chatevent.read() {
         let now = time.elapsed_seconds_f64();
@@ -635,35 +692,54 @@ pub fn handle_chat_events(
                 let sfx = audio::str2sfx(sound);
                 ew_sfx.send(audio::PlaySfxEvent(sfx));
             }
-            ChatEvent::SpawnChoice(replytext, key, goto, nowait) => {
+            ChatEvent::SpawnChoice(replytext, key, goto, nowait, condition) => {
-                commands.spawn((
+                'out: {
-                    world::DespawnOnPlayerDeath,
+                    dbg!(condition);
-                    Choice {
+                    if let Some(condition) = condition {
-                        text: replytext.into(),
+                        if !vars.evaluate_condition(condition, &chat.talker.actor_id) {
-                        key: *key,
+                            break 'out;
-                        goto: goto.clone(),
+                        }
+                    }
+                    commands.spawn((
+                        world::DespawnOnPlayerDeath,
+                        Choice {
+                            text: replytext.into(),
+                            key: *key,
+                            goto: goto.clone(),
+                        }
+                    ));
+                    if !nowait {
+                        chat.timer = now + CHOICE_TIMER / settings.chat_speed as f64;
                     }
-                ));
-                if !nowait {
-                    chat.timer = now + CHOICE_TIMER / settings.chat_speed as f64;
                 }
             }
             ChatEvent::RunScript(script) => {
                 ew_chatscript.send(ChatScriptEvent(script.clone()));
             }
-            ChatEvent::Sleep(sleep_duration) => {
+            ChatEvent::SleepSeconds(sleep_duration) => {
                 chat.timer = now + sleep_duration;
             }
+            ChatEvent::SetVariable(string) => {
+                if let Some((key, value)) = string.split_once(" ") {
+                    vars.set_in_scope(&chat.talker.actor_id, key, value.into());
+                } else {
+                    vars.set_in_scope(&chat.talker.actor_id, string, "".into());
+                }
+            }
+            ChatEvent::GotoIf(condition, goto) => {
+                if vars.evaluate_condition(condition, &chat.talker.actor_id) {
+                    chat.position = goto.clone();
+                }
+            }
         }
     }
 }
 
 fn handle_reply_keys(
     keyboard_input: Res<ButtonInput<KeyCode>>,
-    settings: ResMut<settings::Settings>,
+    settings: ResMut<var::Settings>,
     q_choices: Query<&Choice>,
     mut q_chats: Query<&mut Chat>,
-    //mut evwriter_sendmsg: EventWriter<SendMessageEvent>,
     mut evwriter_sfx: EventWriter<audio::PlaySfxEvent>,
     time: Res<Time>,
 ) {

src/chats/serenity.yaml

@@ -17,7 +17,12 @@
 
 
 - chat: Icarus
+- if $met:
+  - Oh hey, you're back!
+  - How are you doing?
+  - goto: howru
 - Oh hey, you're awake!
+- set: $met
 - I found you drifting out cold, and thought, I better watch over you.
 - Took us here behind that moonlet, to shield you from the micros.
 - Thank you!:

src/chats/startrans.yaml

@@ -7,7 +7,7 @@
 
 
 - chat: ClippyTransSerenity
-- set: busstop serenity
+- set: $busstop serenity
 - Welcome at StarTrans Cargo Services!  You have reached Serenity Station.
 - "Ready for a trip?  Available bus stops: Oscillation Station, Metis Prime Station"
 - label: startransbusstop
@@ -21,7 +21,7 @@
 
 
 - chat: ClippyTransMetis
-- set: busstop metis
+- set: $busstop metis
 - Welcome at StarTrans Cargo Services!  You have reached Metis Prime Station.
 - "Ready for a trip?  Available bus stops: Oscillation Station, Serenity Station"
 - label: startransbusstop
@@ -36,7 +36,7 @@
 
 
 - chat: ClippyTransOscillation
-- set: busstop oscillation
+- set: $busstop oscillation
 - Welcome at StarTrans Cargo Services!  You have reached Oscillation Station.
 - "Ready for a trip?  Available bus stops: Serenity Station, Metis Prime Station"
 - label: startransbusstop
@@ -57,21 +57,21 @@
 - Can I take a spacecraft with me?:
   - Absolutely.
   - goto: startransbusstop
-- if: busstop != "oscillation"
+- if: $busstop != oscillation
   Take me to Oscillation Station, please.:
   - StarTrans wishes you a pleasant journey.
   - script: cryofadeout
   - sleep: 5
   - script: cryotrip oscillation
   - goto: EXIT
-- if: busstop != "metis"
+- if: $busstop != metis
   Take me to Metis Prime Station, please.:
   - StarTrans wishes you a pleasant journey.
   - script: cryofadeout
   - sleep: 5
   - script: cryotrip metisprime
   - goto: EXIT
-- if: busstop != "serenity"
+- if: $busstop != serenity
   Take me to Serenity Station, please.:
   - StarTrans wishes you a pleasant journey.
   - script: cryofadeout

src/commands.rs

@@ -692,7 +692,8 @@ fn spawn_entities(
             }
             if !state.chat.is_empty() {
                 actor.insert(chat::Talker {
-                    conv_id: state.chat.clone(),
+                    actor_id: state.id.clone(),
+                    chat_name: state.chat.clone(),
                     name: state.name.clone(),
                     pronoun: Some(state.pronoun.clone()),
                     talking_speed: 1.0,

src/defs.txt

@@ -199,6 +199,7 @@ actor -3300 10 0 pizzeria
 actor 60 -15 -40 suit
     relativeto player
     name Icarus
+    id Icarus
     chatid Icarus
     alive yes
     scale 2

src/effects.rs

@@ -1,5 +1,5 @@
 use bevy::prelude::*;
-use crate::{camera, settings};
+use crate::{camera, var};
 
 pub struct EffectsPlugin;
 
@@ -40,7 +40,7 @@ pub struct SpawnEffectEvent {
 }
 
 pub fn setup(
-    settings: Res<settings::Settings>,
+    settings: Res<var::Settings>,
     mut ew_effect: EventWriter<SpawnEffectEvent>,
 ) {
     if !settings.dev_mode {

src/hud.rs

@@ -1,4 +1,4 @@
-use crate::{actor, audio, camera, chat, nature, settings, world};
+use crate::{actor, audio, camera, chat, nature, var, world};
 use bevy::prelude::*;
 use bevy::diagnostic::{DiagnosticsStore, FrameTimeDiagnosticsPlugin};
 use bevy::transform::TransformSystem;
@@ -151,7 +151,7 @@ impl Log {
 
 fn setup(
     mut commands: Commands,
-    settings: Res<settings::Settings>,
+    settings: Res<var::Settings>,
     asset_server: Res<AssetServer>,
     mut log: ResMut<Log>,
     mut ambient_light: ResMut<AmbientLight>,
@@ -414,7 +414,7 @@ fn update_hud(
     q_choices: Query<&chat::Choice>,
     mut query_chat: Query<&mut Text, (With<ChatText>, Without<GaugesText>)>,
     query_all_actors: Query<&actor::Actor>,
-    settings: Res<settings::Settings>,
+    settings: Res<var::Settings>,
     q_target: Query<(&IsClickable, Option<&Position>, Option<&LinearVelocity>), With<IsTargeted>>,
 ) {
     // TODO only when hud is actually on
@@ -563,7 +563,7 @@ fn update_hud(
 fn handle_input(
     keyboard_input: Res<ButtonInput<KeyCode>>,
     mouse_input: Res<ButtonInput<MouseButton>>,
-    mut settings: ResMut<settings::Settings>,
+    mut settings: ResMut<var::Settings>,
     mut q_hud: Query<(&mut Visibility, Option<&OnlyHideWhenTogglingHud>), With<ToggleableHudElement>>,
     mut ew_sfx: EventWriter<audio::PlaySfxEvent>,
     mut ew_togglemusic: EventWriter<audio::ToggleMusicEvent>,
@@ -607,7 +607,7 @@ fn handle_input(
 
 fn handle_target_event(
     mut commands: Commands,
-    settings: Res<settings::Settings>,
+    settings: Res<var::Settings>,
     mut er_target: EventReader<TargetEvent>,
     mut ew_sfx: EventWriter<audio::PlaySfxEvent>,
     q_target: Query<Entity, With<IsTargeted>>,
@@ -631,7 +631,7 @@ fn handle_target_event(
 }
 
 fn update_target_selectagon(
-    settings: Res<settings::Settings>,
+    settings: Res<var::Settings>,
     mut q_selectagon: Query<(&mut Transform, &mut Visibility), (With<Selectagon>, Without<IsTargeted>, Without<Camera>)>,
     q_target: Query<&Transform, (With<IsTargeted>, Without<Camera>, Without<Selectagon>)>,
     q_camera: Query<&Transform, (With<Camera>, Without<IsTargeted>, Without<Selectagon>)>,
@@ -671,7 +671,7 @@ fn update_target_selectagon(
 fn update_ar_overlays (
     q_owners: Query<(Entity, &Transform, &Visibility), (With<AugmentedRealityOverlayBroadcaster>, Without<AugmentedRealityOverlay>)>,
     mut q_overlays: Query<(&mut Transform, &mut Visibility, &mut AugmentedRealityOverlay)>,
-    settings: ResMut<settings::Settings>,
+    settings: ResMut<var::Settings>,
     mut state: ResMut<AugmentedRealityState>,
 ) {
     let (need_activate, need_clean, need_update);

src/main.rs

@@ -5,8 +5,8 @@ mod chat;
 mod commands;
 mod effects;
 mod hud;
-mod settings;
 mod stars;
+mod var;
 mod world;
 
 #[allow(dead_code)]
@@ -47,7 +47,8 @@ impl Plugin for OutFlyPlugin {
     fn build(&self, app: &mut App) {
         app.add_systems(Startup, setup);
         app.add_systems(Update, handle_input);
-        app.insert_resource(settings::Settings::default());
+        app.insert_resource(var::Settings::default());
+        app.insert_resource(var::GameVars::default());
         app.add_plugins((
             DefaultPlugins,//.set(ImagePlugin::default_nearest()),
             FrameTimeDiagnosticsPlugin,
@@ -77,7 +78,7 @@ fn setup(
 
 fn handle_input(
     keyboard_input: Res<ButtonInput<KeyCode>>,
-    settings: Res<settings::Settings>,
+    settings: Res<var::Settings>,
     mut app_exit_events: ResMut<Events<bevy::app::AppExit>>,
     mut windows: Query<&mut Window, With<PrimaryWindow>>,
 ) {

src/settings.rs

@@ -1,190 +0,0 @@
-use bevy::prelude::*;
-use std::env;
-
-pub const DEFAULT_CHAT_SPEED: f32 = 10.0;
-
-#[derive(Resource)]
-pub struct Settings {
-    pub dev_mode: bool,
-    pub god_mode: bool,
-    pub mute_sfx: bool,
-    pub mute_music: bool,
-    pub volume_sfx: u8,
-    pub volume_music: u8,
-    pub mouse_sensitivity: f32,
-    pub fov: f32,
-    pub fov_highspeed: f32,
-    pub zoom_fov: f32,
-    pub zoom_sensitivity_factor: f32,
-    pub font_size_hud: f32,
-    pub font_size_conversations: f32,
-    pub chat_speed: f32,
-    pub hud_active: bool,
-    pub is_zooming: bool,
-    pub third_person: bool,
-    pub rotation_stabilizer_active: bool,
-    pub key_selectobject: MouseButton,
-    pub key_zoom: MouseButton,
-    pub key_togglehud: KeyCode,
-    pub key_exit: KeyCode,
-    pub key_restart: KeyCode,
-    pub key_fullscreen: KeyCode,
-    pub key_forward: KeyCode,
-    pub key_back: KeyCode,
-    pub key_left: KeyCode,
-    pub key_right: KeyCode,
-    pub key_up: KeyCode,
-    pub key_down: KeyCode,
-    pub key_run: KeyCode,
-    pub key_stop: KeyCode,
-    pub key_interact: KeyCode,
-    pub key_vehicle: KeyCode,
-    pub key_camera: KeyCode,
-    pub key_rotate: KeyCode,
-    pub key_rotation_stabilizer: KeyCode,
-    pub key_mouseup: KeyCode,
-    pub key_mousedown: KeyCode,
-    pub key_mouseleft: KeyCode,
-    pub key_mouseright: KeyCode,
-    pub key_rotateleft: KeyCode,
-    pub key_rotateright: KeyCode,
-    pub key_reply1: KeyCode,
-    pub key_reply2: KeyCode,
-    pub key_reply3: KeyCode,
-    pub key_reply4: KeyCode,
-    pub key_reply5: KeyCode,
-    pub key_reply6: KeyCode,
-    pub key_reply7: KeyCode,
-    pub key_reply8: KeyCode,
-    pub key_reply9: KeyCode,
-    pub key_reply10: KeyCode,
-    pub key_cheat_god_mode: KeyCode,
-    pub key_cheat_stop: KeyCode,
-    pub key_cheat_speed: KeyCode,
-    pub key_cheat_speed_backward: KeyCode,
-    pub key_cheat_pizza: KeyCode,
-    pub key_cheat_farview1: KeyCode,
-    pub key_cheat_farview2: KeyCode,
-    pub key_cheat_adrenaline_zero: KeyCode,
-    pub key_cheat_adrenaline_mid: KeyCode,
-    pub key_cheat_adrenaline_max: KeyCode,
-    pub key_cheat_die: KeyCode,
-}
-
-impl Default for Settings {
-    fn default() -> Self {
-        let dev_mode;
-
-        let default_mute_sfx = false;
-        let default_mute_music;
-        if let Ok(_) = env::var("CARGO") {
-            // Mute audio by default when run through `cargo`
-            default_mute_music = cfg!(debug_assertions);
-
-            // Enable dev mode when running `cargo run` without `--release`
-            dev_mode = cfg!(debug_assertions);
-        }
-        else {
-            default_mute_music = false;
-            dev_mode = false;
-        }
-
-        Settings {
-            dev_mode,
-            god_mode: false,
-            mute_sfx: default_mute_sfx,
-            mute_music: default_mute_music,
-            volume_sfx: 100,
-            volume_music: 100,
-            mouse_sensitivity: 0.7,
-            fov: 50.0,
-            fov_highspeed: 25.0,
-            zoom_fov: 15.0,
-            zoom_sensitivity_factor: 0.25,
-            font_size_hud: 32.0,
-            font_size_conversations: 32.0,
-            chat_speed: DEFAULT_CHAT_SPEED,
-            hud_active: false,
-            is_zooming: false,
-            third_person: false,
-            rotation_stabilizer_active: true,
-            key_selectobject: MouseButton::Left,
-            key_zoom: MouseButton::Right,
-            key_togglehud: KeyCode::Tab,
-            key_exit: KeyCode::Escape,
-            key_restart: KeyCode::F7,
-            key_fullscreen: KeyCode::F11,
-            key_forward: KeyCode::KeyW,
-            key_back: KeyCode::KeyS,
-            key_left: KeyCode::KeyA,
-            key_right: KeyCode::KeyD,
-            key_up: KeyCode::ShiftLeft,
-            key_down: KeyCode::ControlLeft,
-            key_run: KeyCode::KeyR,
-            key_stop: KeyCode::Space,
-            key_interact: KeyCode::KeyE,
-            key_vehicle: KeyCode::KeyQ,
-            key_camera: KeyCode::KeyF,
-            key_rotate: KeyCode::KeyR,
-            key_rotation_stabilizer: KeyCode::KeyY,
-            key_mouseup: KeyCode::KeyI,
-            key_mousedown: KeyCode::KeyK,
-            key_mouseleft: KeyCode::KeyJ,
-            key_mouseright: KeyCode::KeyL,
-            key_rotateleft: KeyCode::KeyU,
-            key_rotateright: KeyCode::KeyO,
-            key_reply1: KeyCode::Digit1,
-            key_reply2: KeyCode::Digit2,
-            key_reply3: KeyCode::Digit3,
-            key_reply4: KeyCode::Digit4,
-            key_reply5: KeyCode::Digit5,
-            key_reply6: KeyCode::Digit6,
-            key_reply7: KeyCode::Digit7,
-            key_reply8: KeyCode::Digit8,
-            key_reply9: KeyCode::Digit9,
-            key_reply10: KeyCode::Digit0,
-            key_cheat_god_mode: KeyCode::KeyG,
-            key_cheat_stop: KeyCode::KeyC,
-            key_cheat_speed: KeyCode::KeyV,
-            key_cheat_speed_backward: KeyCode::KeyB,
-            key_cheat_pizza: KeyCode::F9,
-            key_cheat_farview1: KeyCode::F10,
-            key_cheat_farview2: KeyCode::F12,
-            key_cheat_adrenaline_zero: KeyCode::F5,
-            key_cheat_adrenaline_mid: KeyCode::F6,
-            key_cheat_adrenaline_max: KeyCode::F8,
-            key_cheat_die: KeyCode::KeyZ,
-        }
-    }
-}
-
-impl Settings {
-    #[allow(dead_code)]
-    pub fn reset(&mut self) {
-        println!("Resetting settings!");
-        *self = Self::default();
-    }
-
-    pub fn reset_player_settings(&mut self) {
-        println!("Resetting player settings!");
-        let default = Self::default();
-        self.rotation_stabilizer_active = default.rotation_stabilizer_active;
-        self.third_person = default.third_person;
-        self.is_zooming = default.is_zooming;
-    }
-
-    pub fn get_reply_keys(&self) -> [KeyCode; 10] {
-        return [
-            self.key_reply1,
-            self.key_reply2,
-            self.key_reply3,
-            self.key_reply4,
-            self.key_reply5,
-            self.key_reply6,
-            self.key_reply7,
-            self.key_reply8,
-            self.key_reply9,
-            self.key_reply10,
-        ];
-    }
-}

src/var.rs

@@ -0,0 +1,385 @@
+use bevy::prelude::*;
+use std::collections::HashMap;
+use std::env;
+
+pub const SCOPE_SEPARATOR: &str = "$";
+
+pub const TOKEN_EQUALS: &str = "==";
+pub const TOKEN_EQUALS_NOT: &str = "!=";
+pub const TOKEN_GREATER_THAN: &str = ">";
+pub const TOKEN_LESS_THAN: &str = "<";
+pub const TOKEN_GREATER_EQUALS: &str = ">=";
+pub const TOKEN_LESS_EQUALS: &str = "<=";
+
+pub const DEFAULT_CHAT_SPEED: f32 = 10.0;
+
+#[derive(Resource)]
+pub struct Settings {
+    pub dev_mode: bool,
+    pub god_mode: bool,
+    pub mute_sfx: bool,
+    pub mute_music: bool,
+    pub volume_sfx: u8,
+    pub volume_music: u8,
+    pub mouse_sensitivity: f32,
+    pub fov: f32,
+    pub fov_highspeed: f32,
+    pub zoom_fov: f32,
+    pub zoom_sensitivity_factor: f32,
+    pub font_size_hud: f32,
+    pub font_size_conversations: f32,
+    pub chat_speed: f32,
+    pub hud_active: bool,
+    pub is_zooming: bool,
+    pub third_person: bool,
+    pub rotation_stabilizer_active: bool,
+    pub key_selectobject: MouseButton,
+    pub key_zoom: MouseButton,
+    pub key_togglehud: KeyCode,
+    pub key_exit: KeyCode,
+    pub key_restart: KeyCode,
+    pub key_fullscreen: KeyCode,
+    pub key_forward: KeyCode,
+    pub key_back: KeyCode,
+    pub key_left: KeyCode,
+    pub key_right: KeyCode,
+    pub key_up: KeyCode,
+    pub key_down: KeyCode,
+    pub key_run: KeyCode,
+    pub key_stop: KeyCode,
+    pub key_interact: KeyCode,
+    pub key_vehicle: KeyCode,
+    pub key_camera: KeyCode,
+    pub key_rotate: KeyCode,
+    pub key_rotation_stabilizer: KeyCode,
+    pub key_mouseup: KeyCode,
+    pub key_mousedown: KeyCode,
+    pub key_mouseleft: KeyCode,
+    pub key_mouseright: KeyCode,
+    pub key_rotateleft: KeyCode,
+    pub key_rotateright: KeyCode,
+    pub key_reply1: KeyCode,
+    pub key_reply2: KeyCode,
+    pub key_reply3: KeyCode,
+    pub key_reply4: KeyCode,
+    pub key_reply5: KeyCode,
+    pub key_reply6: KeyCode,
+    pub key_reply7: KeyCode,
+    pub key_reply8: KeyCode,
+    pub key_reply9: KeyCode,
+    pub key_reply10: KeyCode,
+    pub key_cheat_god_mode: KeyCode,
+    pub key_cheat_stop: KeyCode,
+    pub key_cheat_speed: KeyCode,
+    pub key_cheat_speed_backward: KeyCode,
+    pub key_cheat_pizza: KeyCode,
+    pub key_cheat_farview1: KeyCode,
+    pub key_cheat_farview2: KeyCode,
+    pub key_cheat_adrenaline_zero: KeyCode,
+    pub key_cheat_adrenaline_mid: KeyCode,
+    pub key_cheat_adrenaline_max: KeyCode,
+    pub key_cheat_die: KeyCode,
+}
+
+impl Default for Settings {
+    fn default() -> Self {
+        let dev_mode;
+
+        let default_mute_sfx = false;
+        let default_mute_music;
+        if let Ok(_) = env::var("CARGO") {
+            // Mute audio by default when run through `cargo`
+            default_mute_music = cfg!(debug_assertions);
+
+            // Enable dev mode when running `cargo run` without `--release`
+            dev_mode = cfg!(debug_assertions);
+        }
+        else {
+            default_mute_music = false;
+            dev_mode = false;
+        }
+
+        Settings {
+            dev_mode,
+            god_mode: false,
+            mute_sfx: default_mute_sfx,
+            mute_music: default_mute_music,
+            volume_sfx: 100,
+            volume_music: 100,
+            mouse_sensitivity: 0.7,
+            fov: 50.0,
+            fov_highspeed: 25.0,
+            zoom_fov: 15.0,
+            zoom_sensitivity_factor: 0.25,
+            font_size_hud: 32.0,
+            font_size_conversations: 32.0,
+            chat_speed: DEFAULT_CHAT_SPEED,
+            hud_active: false,
+            is_zooming: false,
+            third_person: false,
+            rotation_stabilizer_active: true,
+            key_selectobject: MouseButton::Left,
+            key_zoom: MouseButton::Right,
+            key_togglehud: KeyCode::Tab,
+            key_exit: KeyCode::Escape,
+            key_restart: KeyCode::F7,
+            key_fullscreen: KeyCode::F11,
+            key_forward: KeyCode::KeyW,
+            key_back: KeyCode::KeyS,
+            key_left: KeyCode::KeyA,
+            key_right: KeyCode::KeyD,
+            key_up: KeyCode::ShiftLeft,
+            key_down: KeyCode::ControlLeft,
+            key_run: KeyCode::KeyR,
+            key_stop: KeyCode::Space,
+            key_interact: KeyCode::KeyE,
+            key_vehicle: KeyCode::KeyQ,
+            key_camera: KeyCode::KeyF,
+            key_rotate: KeyCode::KeyR,
+            key_rotation_stabilizer: KeyCode::KeyY,
+            key_mouseup: KeyCode::KeyI,
+            key_mousedown: KeyCode::KeyK,
+            key_mouseleft: KeyCode::KeyJ,
+            key_mouseright: KeyCode::KeyL,
+            key_rotateleft: KeyCode::KeyU,
+            key_rotateright: KeyCode::KeyO,
+            key_reply1: KeyCode::Digit1,
+            key_reply2: KeyCode::Digit2,
+            key_reply3: KeyCode::Digit3,
+            key_reply4: KeyCode::Digit4,
+            key_reply5: KeyCode::Digit5,
+            key_reply6: KeyCode::Digit6,
+            key_reply7: KeyCode::Digit7,
+            key_reply8: KeyCode::Digit8,
+            key_reply9: KeyCode::Digit9,
+            key_reply10: KeyCode::Digit0,
+            key_cheat_god_mode: KeyCode::KeyG,
+            key_cheat_stop: KeyCode::KeyC,
+            key_cheat_speed: KeyCode::KeyV,
+            key_cheat_speed_backward: KeyCode::KeyB,
+            key_cheat_pizza: KeyCode::F9,
+            key_cheat_farview1: KeyCode::F10,
+            key_cheat_farview2: KeyCode::F12,
+            key_cheat_adrenaline_zero: KeyCode::F5,
+            key_cheat_adrenaline_mid: KeyCode::F6,
+            key_cheat_adrenaline_max: KeyCode::F8,
+            key_cheat_die: KeyCode::KeyZ,
+        }
+    }
+}
+
+impl Settings {
+    #[allow(dead_code)]
+    pub fn reset(&mut self) {
+        println!("Resetting settings!");
+        *self = Self::default();
+    }
+
+    pub fn reset_player_settings(&mut self) {
+        println!("Resetting player settings!");
+        let default = Self::default();
+        self.rotation_stabilizer_active = default.rotation_stabilizer_active;
+        self.third_person = default.third_person;
+        self.is_zooming = default.is_zooming;
+    }
+
+    pub fn get_reply_keys(&self) -> [KeyCode; 10] {
+        return [
+            self.key_reply1,
+            self.key_reply2,
+            self.key_reply3,
+            self.key_reply4,
+            self.key_reply5,
+            self.key_reply6,
+            self.key_reply7,
+            self.key_reply8,
+            self.key_reply9,
+            self.key_reply10,
+        ];
+    }
+}
+
+#[derive(Resource)]
+pub struct GameVars {
+    pub db: HashMap<String, String>,
+}
+
+impl Default for GameVars {
+    fn default() -> Self {
+        Self {
+            db: HashMap::new(),
+        }
+    }
+}
+
+impl GameVars {
+    #[allow(dead_code)]
+    pub fn get(&self, key: &str) -> Option<String> {
+        if let Some(value) = self.db.get(key) {
+            return Some(value.clone());
+        }
+        return None;
+    }
+
+    #[allow(dead_code)]
+    pub fn getf(&self, key: &str) -> Option<f64> {
+        if let Some(value) = self.db.get(key) {
+            if let Ok(float) = value.parse::<f64>() {
+                return Some(float);
+            }
+        }
+        return None;
+    }
+
+    pub fn getb(&self, key: &str) -> bool {
+        if let Some(value) = self.db.get(key) {
+            return Self::evaluate_str_as_bool(value);
+        }
+        return false;
+    }
+
+    pub fn evaluate_str_as_bool(string: &str) -> bool {
+        return string != "0";
+    }
+
+    // This method ensures that the variable name contains a scope separator,
+    // and if a scope is missing, it prefixes the fallback scope.
+    // Should NOT be used on non-variable values, like plain strings.
+    //
+    // Some examples, assuming fallback_scope="Clippy", SCOPE_SEPARATOR="$":
+    //
+    // "" -> "clippy$"
+    // "foo" -> "clippy$foo"
+    // "FOO" -> "clippy$foo"
+    // "$foo" -> "clippy$foo"
+    // "$$foo" -> "$$foo"
+    // "PizzaClippy$foo" -> "pizzaclippy$foo" (unchanged)
+    // "$foo$foo$foo$foo" -> "$foo$foo$foo$foo" (unchanged)
+    pub fn normalize_varname(fallback_scope: &str, key: &str) -> String {
+        let parts: Vec<&str> = key.split(SCOPE_SEPARATOR).collect();
+        let key: String = if parts.len() == 1 {
+            // we got a key like "foo", turn it into "<scope>$foo"
+            fallback_scope.to_string() + SCOPE_SEPARATOR + key
+        } else if parts.len() > 1 {
+            // we got a key with at least one "$"
+            // extract anything before the last "$":
+            let scope_part: String = parts[0..parts.len() - 2].join(SCOPE_SEPARATOR);
+
+            if scope_part.is_empty() {
+                // we got a key like "$foo", just prefix the fallback scope
+                fallback_scope.to_string() + key
+            }
+            else {
+                // we got a key like "Ke$ha$foo" or "$$foo" (which is the convention for
+                // global variables), leave the scope intact
+                key.to_string()
+            }
+        } else {
+            // we got an empty string. this is bad, but handle gracefully
+            fallback_scope.to_string() + SCOPE_SEPARATOR
+        };
+        return key.to_lowercase();
+    }
+
+    pub fn set_in_scope(&mut self, fallback_scope: &str, key: &str, value: String) {
+        let key = Self::normalize_varname(fallback_scope, key);
+        self.db.insert(key, value);
+    }
+
+    pub fn evaluate_condition(&self, condition: &str, scope: &str) -> bool {
+        let parts: Vec<&str> = condition.split(" ").collect();
+        if parts.len() == 0 {
+            // Got an empty string, this is always false.
+            return false;
+        } else if parts.len() == 1 {
+            // Got something like "if $somevar:".
+            // Check whether the variable evaluates to true.
+            let part = parts[0];
+            if part.contains(SCOPE_SEPARATOR) {
+                let part = Self::normalize_varname(scope, part);
+                let value_bool = self.getb(part.as_str());
+                return value_bool;
+            }
+            else {
+                return Self::evaluate_str_as_bool(part);
+            }
+
+        } else if parts.len() == 2 {
+            // Got something like "if $something somethingelse"
+            // Check whether the two are identical.
+            let mut left: String = parts[0].to_string();
+            if left.contains(SCOPE_SEPARATOR) {
+                left = self
+                    .get(Self::normalize_varname(scope, left.as_str()).as_str())
+                    .unwrap_or("".to_string());
+            }
+            let mut right: String = parts[1].to_string();
+            if right.contains(SCOPE_SEPARATOR) {
+                right = self
+                    .get(Self::normalize_varname(scope, right.as_str()).as_str())
+                    .unwrap_or("".to_string());
+            }
+            return left == right;
+        } else {
+            // Got something like "if $something != somethingelse bla bla"
+            let mut left: String = parts[0].to_string();
+            if left.contains(SCOPE_SEPARATOR) {
+                left = self
+                    .get(Self::normalize_varname(scope, left.as_str()).as_str())
+                    .unwrap_or("".to_string());
+            }
+
+            let mut right: String = parts[2..parts.len()].join(" ").to_string();
+            if right.contains(SCOPE_SEPARATOR) {
+                right = self
+                    .get(Self::normalize_varname(scope, right.as_str()).as_str())
+                    .unwrap_or("".to_string());
+            }
+            let floats = (left.parse::<f64>(), right.parse::<f64>());
+            let operator: &str = parts[1];
+
+            match operator {
+                TOKEN_EQUALS => {
+                    if let (Ok(left), Ok(right)) = floats {
+                        return left == right;
+                    }
+                    return left == right;
+                }
+                TOKEN_EQUALS_NOT => {
+                    if let (Ok(left), Ok(right)) = floats {
+                        return left != right;
+                    }
+                    return left != right;
+                }
+                TOKEN_GREATER_THAN => {
+                    if let (Ok(left), Ok(right)) = floats {
+                        return left > right;
+                    }
+                    return false;
+                }
+                TOKEN_GREATER_EQUALS => {
+                    if let (Ok(left), Ok(right)) = floats {
+                        return left >= right;
+                    }
+                    return false;
+                }
+                TOKEN_LESS_THAN => {
+                    if let (Ok(left), Ok(right)) = floats {
+                        return left < right;
+                    }
+                    return false;
+                }
+                TOKEN_LESS_EQUALS => {
+                    if let (Ok(left), Ok(right)) = floats {
+                        return left <= right;
+                    }
+                    return false;
+                }
+                _ => {
+                    error!("Unknown operator '{operator}' in if-condition!");
+                    return false;
+                }
+            }
+        }
+    }
+}

src/world.rs

@@ -1,4 +1,4 @@
-use crate::{actor, audio, hud, nature, settings, stars};
+use crate::{actor, audio, hud, nature, stars, var};
 use bevy::prelude::*;
 use bevy::render::render_resource::{AsBindGroup, ShaderRef};
 use bevy::math::{DVec3, I64Vec3};
@@ -385,7 +385,7 @@ fn handle_cheats(
     mut q_player: Query<(&Transform, &mut Position, &mut LinearVelocity), With<actor::PlayerCamera>>,
     mut q_life: Query<(&mut actor::LifeForm, &mut actor::ExperiencesGForce), With<actor::Player>>,
     mut ew_playerdies: EventWriter<actor::PlayerDiesEvent>,
-    mut settings: ResMut<settings::Settings>,
+    mut settings: ResMut<var::Settings>,
     mut ew_sfx: EventWriter<audio::PlaySfxEvent>,
 ) {
     if q_player.is_empty() || q_life.is_empty() {