Add event for commands and make __on_player_message not trigger for them (#1525)

* Restoring old behaviour of __on_player_message

Fixes #1511

* Changed to PLAYER_COMMAND

* Updated docs

* Updated event_test.sc

* Updated editor keywords

* Fixed issue

src/main/java/carpet/mixins/ServerGamePacketListenerImpl_scarpetEventsMixin.java

@@ -1,6 +1,6 @@
 package carpet.mixins;
 
-import net.minecraft.network.chat.Component;
+import net.minecraft.network.protocol.game.ServerboundChatCommandPacket;
 import net.minecraft.network.protocol.game.ServerboundChatPacket;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.Shadow;
@@ -27,6 +27,7 @@ import static carpet.script.CarpetEventServer.Event.PLAYER_SWAPS_HANDS;
 import static carpet.script.CarpetEventServer.Event.PLAYER_SWINGS_HAND;
 import static carpet.script.CarpetEventServer.Event.PLAYER_SWITCHES_SLOT;
 import static carpet.script.CarpetEventServer.Event.PLAYER_MESSAGE;
+import static carpet.script.CarpetEventServer.Event.PLAYER_COMMAND;
 import static carpet.script.CarpetEventServer.Event.PLAYER_USES_ITEM;
 import static carpet.script.CarpetEventServer.Event.PLAYER_WAKES_UP;
 
@@ -302,4 +303,14 @@ public class ServerGamePacketListenerImpl_scarpetEventsMixin
             if(PLAYER_MESSAGE.onPlayerMessage(player, serverboundChatPacket.message())) ci.cancel();
         }
     }
+
+    @Inject(method = "handleChatCommand(Lnet/minecraft/network/protocol/game/ServerboundChatCommandPacket;)V",
+            at = @At(value = "HEAD")
+    )
+    private void onChatCommandMessage(ServerboundChatCommandPacket serverboundChatCommandPacket, CallbackInfo ci) {
+        if (PLAYER_COMMAND.isNeeded())
+        {
+            PLAYER_COMMAND.onPlayerMessage(player, serverboundChatCommandPacket.command());
+        }
+    }
 }

src/main/java/carpet/script/CarpetEventServer.java

@@ -921,6 +921,13 @@ public class CarpetEventServer
             }
         };
 
+        public static final Event PLAYER_COMMAND = new Event("player_command", 2, false) {
+            @Override
+            public boolean onPlayerMessage(ServerPlayer player, String message) {
+                return handler.call( () -> Arrays.asList(new EntityValue(player), new StringValue(message)), player::createCommandSourceStack);
+            }
+        };
+
         public static final Event STATISTICS = new Event("statistic", 4, false)
         {
             private <T> ResourceLocation getStatId(Stat<T> stat)