Allow entities to be "immutable" by default

gradle.properties

@@ -17,7 +17,7 @@ authors=jaskarth, unascribed
 contributors=Patbox, IThundxr
 license=AGPL-3.0-or-later
 # Mod Version
-baseVersion=0.6.1
+baseVersion=0.6.2
 # Branch Metadata
 branch=1.21
 tagBranch=1.21

src/main/java/net/modfest/fireblanket/Fireblanket.java

@@ -7,8 +7,9 @@
 import net.fabricmc.fabric.api.entity.event.v1.ServerEntityWorldChangeEvents;
 import net.fabricmc.fabric.api.event.Event;
 import net.fabricmc.fabric.api.event.lifecycle.v1.ServerWorldEvents;
-import net.fabricmc.fabric.api.event.player.UseBlockCallback;
 import net.fabricmc.fabric.api.event.registry.RegistryEntryAddedCallback;
+import net.fabricmc.fabric.api.gamerule.v1.GameRuleFactory;
+import net.fabricmc.fabric.api.gamerule.v1.GameRuleRegistry;
 import net.fabricmc.fabric.api.networking.v1.PacketByteBufs;
 import net.fabricmc.fabric.api.networking.v1.PayloadTypeRegistry;
 import net.fabricmc.fabric.api.networking.v1.ServerLoginConnectionEvents;
@@ -28,6 +29,7 @@
 import net.minecraft.server.world.ServerWorld;
 import net.minecraft.util.Identifier;
 import net.minecraft.util.math.ChunkPos;
+import net.minecraft.world.GameRules;
 import net.modfest.fireblanket.command.CmdFindReplaceCommand;
 import net.modfest.fireblanket.command.DumpCommand;
 import net.modfest.fireblanket.command.RegionCommand;
@@ -49,9 +51,6 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.io.IOException;
-import java.nio.file.Files;
-import java.nio.file.Path;
 import java.util.concurrent.LinkedBlockingQueue;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.function.Consumer;
@@ -61,6 +60,13 @@ public class Fireblanket implements ModInitializer {
 	public static final Identifier FULL_STREAM_COMPRESSION = Identifier.of("fireblanket", "full_stream_compression");
 	public static final Identifier REGIONS_UPDATE = Identifier.of("fireblanket", "regions_update");
 
+	/**
+	 * Whether new entities will be fixed.
+	 * @see net.modfest.fireblanket.mixin.entity_immutability
+	 */
+	public static final GameRules.Key<GameRules.BooleanRule> NEW_ENTITIES_IMMUTABLE =
+		GameRuleRegistry.register("newEntitiesImmutable", GameRules.Category.MOBS, GameRuleFactory.createBooleanRule(true));
+
 	public static final Logger LOGGER = LoggerFactory.getLogger("Fireblanket");
 
 	public record QueuedPacket(ClientConnection conn, Packet<?> packet, PacketCallbacks listener) {

src/main/java/net/modfest/fireblanket/mixin/accessor/ArmorStandEntityAccessor.java

@@ -0,0 +1,11 @@
+package net.modfest.fireblanket.mixin.accessor;
+
+import net.minecraft.entity.decoration.ArmorStandEntity;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.gen.Accessor;
+
+@Mixin(ArmorStandEntity.class)
+public interface ArmorStandEntityAccessor {
+	@Accessor
+	void setDisabledSlots(int d);
+}

src/main/java/net/modfest/fireblanket/mixin/accessor/ItemFrameAccessor.java

@@ -0,0 +1,11 @@
+package net.modfest.fireblanket.mixin.accessor;
+
+import net.minecraft.entity.decoration.ItemFrameEntity;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.gen.Accessor;
+
+@Mixin(ItemFrameEntity.class)
+public interface ItemFrameAccessor {
+	@Accessor
+	void setFixed(boolean v);
+}

src/main/java/net/modfest/fireblanket/mixin/adventure_fix/MixinFarmlandBlock.java

@@ -0,0 +1,27 @@
+package net.modfest.fireblanket.mixin.adventure_fix;
+
+import net.minecraft.block.BlockState;
+import net.minecraft.block.FarmlandBlock;
+import net.minecraft.entity.Entity;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.World;
+import org.jetbrains.annotations.Nullable;
+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.CallbackInfo;
+
+@Mixin(FarmlandBlock.class)
+public class MixinFarmlandBlock {
+	@Inject(
+		method = "setToDirt",
+		at = @At("HEAD"),
+		cancellable = true
+	)
+	private static void doNotSetToDirt(@Nullable Entity entity, BlockState state, World world, BlockPos pos, CallbackInfo ci) {
+		if (entity instanceof PlayerEntity player && !player.canModifyBlocks()) {
+			ci.cancel();
+		}
+	}
+}

src/main/java/net/modfest/fireblanket/mixin/entity_immutability/MixinDecorationItem.java

@@ -0,0 +1,23 @@
+package net.modfest.fireblanket.mixin.entity_immutability;
+
+import com.llamalad7.mixinextras.sugar.Local;
+import net.minecraft.entity.decoration.AbstractDecorationEntity;
+import net.minecraft.item.DecorationItem;
+import net.minecraft.item.ItemUsageContext;
+import net.minecraft.util.ActionResult;
+import net.modfest.fireblanket.Fireblanket;
+import net.modfest.fireblanket.util.ImmutableEntities;
+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(DecorationItem.class)
+public class MixinDecorationItem {
+	@Inject(method = "useOnBlock(Lnet/minecraft/item/ItemUsageContext;)Lnet/minecraft/util/ActionResult;", at = @At(value = "INVOKE", target = "Lnet/minecraft/item/ItemStack;getOrDefault(Lnet/minecraft/component/ComponentType;Ljava/lang/Object;)Ljava/lang/Object;"))
+	private void onInitSpawnedEntity(ItemUsageContext context, CallbackInfoReturnable<ActionResult> cir, @Local AbstractDecorationEntity entity) {
+		if (context.getWorld().getGameRules().getBoolean(Fireblanket.NEW_ENTITIES_IMMUTABLE)) {
+			ImmutableEntities.makeImmutable(entity);
+		}
+	}
+}

src/main/java/net/modfest/fireblanket/mixin/entity_immutability/MixinEntityType.java

@@ -0,0 +1,31 @@
+package net.modfest.fireblanket.mixin.entity_immutability;
+
+import com.llamalad7.mixinextras.injector.wrapoperation.Operation;
+import com.llamalad7.mixinextras.injector.wrapoperation.WrapOperation;
+import net.minecraft.entity.Entity;
+import net.minecraft.entity.EntityType;
+import net.minecraft.entity.SpawnReason;
+import net.minecraft.server.world.ServerWorld;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.World;
+import net.modfest.fireblanket.Fireblanket;
+import net.modfest.fireblanket.util.ImmutableEntities;
+import org.jetbrains.annotations.Nullable;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+
+import java.util.function.Consumer;
+
+@Mixin(EntityType.class)
+public class MixinEntityType {
+	@WrapOperation(method = "create(Lnet/minecraft/server/world/ServerWorld;Ljava/util/function/Consumer;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/entity/SpawnReason;ZZ)Lnet/minecraft/entity/Entity;", at = @At(value = "INVOKE", target = "Lnet/minecraft/entity/EntityType;create(Lnet/minecraft/world/World;)Lnet/minecraft/entity/Entity;"))
+	private Entity afterCreated(EntityType<?> instance, World world, Operation<Entity> original, ServerWorld world2, @Nullable Consumer<Entity> afterConsumer, BlockPos pos, SpawnReason reason, boolean alignPosition, boolean invertY) {
+		var entity = original.call(instance, world);
+		if (world.getGameRules().getBoolean(Fireblanket.NEW_ENTITIES_IMMUTABLE) && reason == SpawnReason.SPAWN_EGG) {
+			if (entity != null) {
+				ImmutableEntities.makeImmutable(entity);
+			}
+		}
+		return entity;
+	}
+}

src/main/java/net/modfest/fireblanket/util/ImmutableEntities.java

@@ -0,0 +1,27 @@
+package net.modfest.fireblanket.util;
+
+import net.minecraft.entity.Entity;
+import net.modfest.fireblanket.mixin.accessor.ArmorStandEntityAccessor;
+import net.modfest.fireblanket.mixin.accessor.ItemFrameAccessor;
+import net.modfest.fireblanket.mixinsupport.ImmmovableLivingEntity;
+
+public class ImmutableEntities {
+	public static void makeImmutable(Entity entity) {
+		// Set invulnerability
+		entity.setInvulnerable(true);
+
+		if (entity instanceof ArmorStandEntityAccessor ae) {
+			// Disable all slots
+			ae.setDisabledSlots(4144959);
+			// Disable movement (prevents abuse of fishing rods)
+			if (entity instanceof ImmmovableLivingEntity im) {
+				im.setNoMovement(true);
+			}
+		}
+
+		if (entity instanceof ItemFrameAccessor ie) {
+			// Make item frames fixed
+			ie.setFixed(true);
+		}
+	}
+}

src/main/resources/assets/fireblanket/lang/en_us.json

@@ -1,4 +1,5 @@
 {
 	"argument.entity.selector.limit.unforced": "Targeting too many entities with no distance filter; add `force=true` to the selector to bypass",
-	"argument.entity.options.force.description": "Force-allow more than 50 entities targeted with no distance filter"
-}
+	"argument.entity.options.force.description": "Force-allow more than 50 entities targeted with no distance filter",
+	"gamerule.newEntitiesImmutable": "Whether newly spawned entities should be immutable. (Item frames will be fixed for example"
+}

src/main/resources/fireblanket.mixins.json

@@ -4,26 +4,30 @@
 	"compatibilityLevel": "JAVA_17",
 	"plugin": "net.modfest.fireblanket.FireblanketMixin",
 	"mixins": [
+		"accessor.ArmorStandEntityAccessor",
 		"accessor.BlockEntityTypeAccessor",
 		"accessor.ClientConnectionAccessor",
 		"accessor.EntityTypeAccessor",
+		"accessor.ItemFrameAccessor",
 		"accessor.ServerChunkManagerAccessor",
 		"accessor.ServerLoginNetworkHandlerAccessor",
-      	"adventure_fix.MixinItemStack",
+		"adventure_fix.MixinItemStack",
 		"adventure_fix.MixinPlayerInteractEntityC2SPacketHandler",
 		"adventure_fix.MixinServerPlayerInteractionManager",
+		"adventure_fix.MixinFarmlandBlock",
 		"ai.MixinTemptGoal",
 		"be_sync.MixinBlockEntity",
 		"be_sync.MixinChunkHolder",
 		"block.MixinCommandBlock",
 		"block_format.MixinChunkSection",
+		"entity_immutability.MixinDecorationItem",
+		"entity_immutability.MixinEntityType",
 		"entity_ticking.MixinDebugStickItem",
 		"entity_ticking.MixinEntity",
 		"entity_ticking.MixinItemGroups",
 		"entity_ticking.MixinLivingEntity",
 		"entity_ticking.MixinMinecraftServer",
 		"entity_ticking.MixinServerChunkLoadingManager",
-		"mods.create.MixinSuperGlueEntity",
 		"footgun.MixinEntitySelectorOptions",
 		"footgun.MixinEntitySelectorReader",
 		"fsc.MixinClientConnection",
@@ -32,6 +36,7 @@
 		"io_uring.MixinServerNetworkIo",
 		"mods.create.AccessorSmartBlockEntity",
 		"mods.create.MixinMechanicalBearingBlockEntity",
+		"mods.create.MixinSuperGlueEntity",
 		"mods.mythicmetals.MixinCarmotShield",
 		"mods.pehkui.MixinScaleUtils",
 		"mods.pswg.MixinComplexCollisionManager",
@@ -61,7 +66,6 @@
 		"client.adventure_fix.MixinClientPlayerInteractionManager",
 		"client.be_masking.MixinBlockEntityRenderDispatcher",
 		"client.be_masking.MixinRebuildTask",
-		"mods.masking.sodium.MixinChunkRenderRebuildTask",
 		"client.bufferbuilder_opto.MixinBufferBuilder",
 		"client.bufferbuilder_opto.MixinVertexFormat",
 		"client.entity_masking.MixinEntityRenderer",
@@ -79,6 +83,7 @@
 		"client.vbo_opto.MixinShaderProgram",
 		"client.vbo_opto.MixinVertexBuffer",
 		"gamemode_selection.MixinKeyboard",
-		"gamemode_selection.MixinSelectionScreen"
+		"gamemode_selection.MixinSelectionScreen",
+		"mods.masking.sodium.MixinChunkRenderRebuildTask"
 	]
 }