Added help command

lib/src/commands.rs

@@ -1,6 +1,7 @@
 use std::collections::HashMap;
 use std::sync::Mutex;
 use lazy_static::lazy_static;
+use crate::log;
 
 pub struct Command {
     pub name: &'static str,
@@ -27,4 +28,25 @@ macro_rules! register_command {
             usage: $usage,
         });
     };
+}
+
+pub fn init() {
+    register_command!("help", help_command, "Prints help information", "help [command]");
+}
+
+fn help_command(args: Vec<String>) {
+    let registry = COMMAND_REGISTRY.lock().unwrap();
+    if args.is_empty() {
+        for command in registry.values() {
+            log(format!("{}: {} | {}", command.name, command.help, command.usage));
+        }
+    } else {
+        for arg in args {
+            if let Some(command) = registry.get(&arg[..]) {
+                log(format!("{}: {} | {}", command.name, command.help, command.usage));
+            } else {
+                log(format!("Command not found: {}", arg));
+            }
+        }
+    }
 }

lib/src/lib.rs

@@ -1,7 +1,6 @@
 #![allow(special_module_name)]
 
 pub mod commands;
-use crate::commands::Command;
 
 use wasm_bindgen::prelude::*;
 
@@ -18,8 +17,6 @@ lazy_static! {
 #[cfg(target_arch = "wasm32")]
 #[wasm_bindgen(start)]
 pub fn start() -> Result<(), JsValue> {
-    use commands::register_command;
-
     console_log::init_with_level(log::Level::Debug).unwrap();
     info!("Logging works!");
     std::panic::set_hook(Box::new(console_error_panic_hook::hook));
@@ -150,7 +147,7 @@ pub fn log(message: String) {
 pub fn register_commands() {
     register_command!("reset_camera", reset_camera_command, "Reset camera to default settings", "reset_camera");
     register_command!("fov", update_camera_fov_command, "Update camera field of view (FOV)", "fov <degrees>");
-
+    commands::init();
 }
 
 fn reset_camera_command(args: Vec<String>) {