Add the spread container loot rule type

src/main/java/xyz/nucleoid/plasmid/api/game/rule/GameRuleType.java

@@ -114,6 +114,7 @@ public final class GameRuleType {
     public static final GameRuleType STOP_SPECTATING_ENTITY = GameRuleType.create();
     public static final GameRuleType PLAYER_PROJECTILE_KNOCKBACK = GameRuleType.create();
     public static final GameRuleType TRIDENTS_LOYAL_IN_VOID = GameRuleType.create();
+    public static final GameRuleType SPREAD_CONTAINER_LOOT = GameRuleType.create();
     public static final GameRuleType MODIFY_INVENTORY = GameRuleType.create();
     public static final GameRuleType MODIFY_ARMOR = GameRuleType.create();
     public static final GameRuleType SWAP_OFFHAND = GameRuleType.create().enforces(PlayerSwapWithOffhandEvent.EVENT, result -> (player) -> result);

src/main/java/xyz/nucleoid/plasmid/mixin/game/rule/LootTableMixin.java

@@ -0,0 +1,34 @@
+package xyz.nucleoid.plasmid.mixin.game.rule;
+
+import com.llamalad7.mixinextras.injector.v2.WrapWithCondition;
+import com.llamalad7.mixinextras.sugar.Local;
+import it.unimi.dsi.fastutil.objects.ObjectArrayList;
+import net.minecraft.item.ItemStack;
+import net.minecraft.loot.LootTable;
+import net.minecraft.loot.context.LootContext;
+import net.minecraft.loot.context.LootContextParameters;
+import net.minecraft.server.network.ServerPlayerEntity;
+import net.minecraft.util.math.random.Random;
+import xyz.nucleoid.plasmid.api.game.rule.GameRuleType;
+import xyz.nucleoid.plasmid.impl.game.manager.GameSpaceManagerImpl;
+import xyz.nucleoid.stimuli.event.EventResult;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+
+@Mixin(LootTable.class)
+public class LootTableMixin {
+    @WrapWithCondition(
+            method = "supplyInventory",
+            at = @At(value = "INVOKE", target = "Lnet/minecraft/loot/LootTable;shuffle(Lit/unimi/dsi/fastutil/objects/ObjectArrayList;ILnet/minecraft/util/math/random/Random;)V")
+    )
+    public boolean preventContainerLootShuffling(LootTable lootTable, ObjectArrayList<ItemStack> stacks, int freeSlots, Random random, @Local LootContext context) {
+        var entity = context.get(LootContextParameters.THIS_ENTITY);
+        var gameSpace = entity instanceof ServerPlayerEntity player ? GameSpaceManagerImpl.get().byPlayer(player) : GameSpaceManagerImpl.get().byWorld(context.getWorld());
+
+        if (gameSpace != null && gameSpace.getBehavior().testRule(GameRuleType.SPREAD_CONTAINER_LOOT) == EventResult.DENY) {
+            return false;
+        }
+
+        return true;
+    }
+}

src/main/resources/plasmid.mixins.json

@@ -12,6 +12,7 @@
     "game.portal.SignBlockEntityMixin",
     "game.rule.EquippableComponentMixin",
     "game.rule.HungerManagerMixin",
+    "game.rule.LootTableMixin",
     "game.rule.PlayerEntityMixin",
     "game.rule.ServerPlayerEntityMixin",
     "game.rule.ServerPlayNetworkHandlerMixin",