From 184eec82b319b6e91fc22bea828f7e539a5968ce Mon Sep 17 00:00:00 2001
From: Melledy <52122272+Melledy@users.noreply.github.com>
Date: Mon, 30 May 2022 19:49:42 -0700
Subject: [PATCH] Limit spawn amount if too many entities are in the world

Can be controlled in the config with `sceneEntityLimit`
---
 .../grasscutter/command/commands/SpawnCommand.java   | 12 +++++++++++-
 .../java/emu/grasscutter/utils/ConfigContainer.java  |  2 +-
 src/main/resources/languages/en-US.json              |  1 +
 3 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/src/main/java/emu/grasscutter/command/commands/SpawnCommand.java b/src/main/java/emu/grasscutter/command/commands/SpawnCommand.java
index 60d4c3c17..d8588b9fb 100644
--- a/src/main/java/emu/grasscutter/command/commands/SpawnCommand.java
+++ b/src/main/java/emu/grasscutter/command/commands/SpawnCommand.java
@@ -20,6 +20,7 @@ import javax.swing.text.html.parser.Entity;
 import java.util.List;
 import java.util.Random;
 
+import static emu.grasscutter.Configuration.*;
 import static emu.grasscutter.utils.Language.translate;
 
 @Command(label = "spawn", usage = "spawn <entityId> [amount] [level(monster only)]", permission = "server.spawn", permissionTargeted = "server.spawn.others", description = "commands.spawn.description")
@@ -54,7 +55,7 @@ public final class SpawnCommand implements CommandHandler {
                 CommandHandler.sendMessage(sender, translate(sender, "commands.spawn.usage"));
                 return;
         }
-
+        
         MonsterData monsterData = GameData.getMonsterDataMap().get(id);
         GadgetData gadgetData = GameData.getGadgetDataMap().get(id);
         ItemData itemData = GameData.getItemDataMap().get(id);
@@ -62,7 +63,16 @@ public final class SpawnCommand implements CommandHandler {
             CommandHandler.sendMessage(sender, translate(sender, "commands.generic.invalid.entityId"));
             return;
         }
+       
         Scene scene = targetPlayer.getScene();
+        
+        if (scene.getEntities().size() + amount > GAME_OPTIONS.sceneEntityLimit) {
+        	amount = Math.max(Math.min(GAME_OPTIONS.sceneEntityLimit - scene.getEntities().size(), amount), 0);
+        	CommandHandler.sendMessage(sender, translate(sender, "commands.spawn.limit_reached", amount));
+        	if (amount <= 0) {
+        		return;
+        	}
+        }
 
         double maxRadius = Math.sqrt(amount * 0.2 / Math.PI);
         for (int i = 0; i < amount; i++) {
diff --git a/src/main/java/emu/grasscutter/utils/ConfigContainer.java b/src/main/java/emu/grasscutter/utils/ConfigContainer.java
index aea9411c0..57fe13194 100644
--- a/src/main/java/emu/grasscutter/utils/ConfigContainer.java
+++ b/src/main/java/emu/grasscutter/utils/ConfigContainer.java
@@ -171,7 +171,7 @@ public class ConfigContainer {
     public static class GameOptions {
         public InventoryLimits inventoryLimits = new InventoryLimits();
         public AvatarLimits avatarLimits = new AvatarLimits();
-        public int worldEntityLimit = 1000; // Unenforced. TODO: Implement.
+        public int sceneEntityLimit = 1000; // Unenforced. TODO: Implement.
 
         public boolean watchGachaConfig = false;
         public boolean enableShopItems = true;
diff --git a/src/main/resources/languages/en-US.json b/src/main/resources/languages/en-US.json
index aa44dbecf..269b10c7b 100644
--- a/src/main/resources/languages/en-US.json
+++ b/src/main/resources/languages/en-US.json
@@ -306,6 +306,7 @@
     "spawn": {
       "usage": "Usage: spawn <entityID> [amount] [level(monster only)]",
       "success": "Spawned %s of %s.",
+      "limit_reached": "Scene spawn limit reached. Spawning %s entities instead.",
       "description": "Spawns an entity near you"
     },
     "stop": {