Commands: Support gamemode command to use numbers

pumpkin/src/commands/gamemode.rs

@@ -1,3 +1,8 @@
+use num_traits::FromPrimitive;
+use pumpkin_text::TextComponent;
+
+use crate::entity::player::GameMode;
+
 use super::Command;
 
 pub struct GamemodeCommand {}
@@ -12,8 +17,7 @@ impl<'a> Command<'a> for GamemodeCommand {
         let args: Vec<&str> = command.split_whitespace().collect();
 
         if args.len() != 2 {
-            // TODO: red
+            player.send_system_message(TextComponent::from("Usage: /gamemode <mode>").color_named(pumpkin_text::color::NamedColor::Red));
-            player.send_system_message("Usage: /gamemode <mode>".into());
             return;
         }
 
@@ -21,11 +25,24 @@ impl<'a> Command<'a> for GamemodeCommand {
         match mode_str.parse() {
             Ok(mode) => {
                 player.set_gamemode(mode);
-                player.send_system_message(format!("Set own game mode to {mode_str}").into());
+                player.send_system_message(format!("Set own game mode to {:?}", mode).into());
             }
             Err(_) => {
-                // TODO: red
+                // try to parse from number
-                player.send_system_message("Invalid gamemode".into());
+                match mode_str.parse::<u8>() {
+                    Ok(i) => match GameMode::from_u8(i) {
+                        Some(mode) => {
+                            player.set_gamemode(mode);
+                            player.send_system_message(format!("Set own game mode to {:?}", mode).into());
+                            return;
+                        },
+                        None => {},
+                    },
+                    Err(_) => {},
+                }
+                
+                
+                player.send_system_message(TextComponent::from("Invalid gamemode").color_named(pumpkin_text::color::NamedColor::Red));
             }
         }
     }

pumpkin/src/entity/player.rs

@@ -50,7 +50,7 @@ pub enum ChatMode {
     Hidden,
 }
 
-#[derive(Clone, Copy, PartialEq, Serialize, Deserialize, FromPrimitive, ToPrimitive)]
+#[derive(Clone, Copy, Debug, PartialEq, Serialize, Deserialize, FromPrimitive, ToPrimitive)]
 pub enum GameMode {
     Undefined = -1,
     Survival,