fix: disallow zombie picking up egg, rotten flesh, string, bone, arrow and wheat seeds

src/main/java/io/ib67/sfcraft/mixin/common/ZombieMixin.java

@@ -0,0 +1,24 @@
+package io.ib67.sfcraft.mixin.common;
+
+import net.minecraft.world.entity.monster.zombie.Zombie;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.item.Items;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+@Mixin(Zombie.class)
+public abstract class ZombieMixin {
+    @Inject(method = "canHoldItem", at = @At("HEAD"), cancellable = true)
+    public void canHoldItem(final ItemStack itemStack, final CallbackInfoReturnable<Boolean> cir) {
+        cir.setReturnValue(!(itemStack.is(Items.EGG)
+                || itemStack.is(Items.ROTTEN_FLESH)
+                || itemStack.is(Items.STRING))
+                || itemStack.is(Items.BONE)
+                || itemStack.is(Items.ARROW)
+                || itemStack.is(Items.WHEAT_SEEDS)
+        );
+    }
+}

src/main/resources/sfcraft.mixins.json

@@ -4,21 +4,21 @@
   "package": "io.ib67.sfcraft.mixin",
   "compatibilityLevel": "JAVA_21",
   "mixins": [
-    "common.bridge.EntityBridge",
-    "common.bridge.ItemBridge",
-    "common.bridge.ServerPlayerBridge",
-    "common.bridge.ServerWorldBridge",
-    "common.bridge.ServerChunkManagerBridge",
-    "common.fixes.EndermanEntityMixin",
-    "common.fixes.ProjectileEntityMixin",
-    "common.fixes.LivingEntityMixin",
-    "common.EntityMixin",
-    "common.MobEntityMixin",
-    "common.PlayerEntityMixin"
   ],
   "client": [
   ],
   "server": [
+    "common.EntityMixin",
+    "common.MobEntityMixin",
+    "common.PlayerEntityMixin",
+    "common.ZombieMixin",
+    "common.bridge.EntityBridge",
+    "common.bridge.ItemBridge",
+    "common.bridge.ServerChunkManagerBridge",
+    "common.bridge.ServerPlayerBridge",
+    "common.bridge.ServerWorldBridge",
+    "common.fixes.EndermanEntityMixin",
+    "common.fixes.LivingEntityMixin",
     "server.AbstractFurnaceBlockMixin",
     "server.LegacyQueryHandlerMixin",
     "server.MinecraftServerMixin",