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I solved it, when i create entity, i checking if entity name have more than 14 letter, when i delete it, everything works fine.

im trying to use this: event.getEntity().getServer().overworld().getEntity(UUID.fromString(findEntity.getName().getString().substring(14))).getUUID(); //findEntity its armor stand with name "MyEntityInWorld" + entity UUID but it says: UUID string too large Do you know why? EDIT: i figuret out, i need substring(15).

try now

https://github.com/N0tN0t/ModDebugging

but that what i want. I want while making structure in the world, events will be happend with all players. @SubscribeEvent public static void OnBlockPlaced(BlockEvent.EntityPlaceEvent event) { BlockState blockState = event.getPlacedBlock(); if (blockState.is(Blocks.REDSTONE_TORCH)) { Entity ent = null; if (server == null && ent != null) { Iterable<Entity> entities = event.getEntity().getServer().overworld().getAllEntities(); for (Entity enti : entities) { if (enti.getName().getString().length() > 12) { if (enti.getName().getString().substring(0, 14).equals("EventsActived")) { ent = enti; } } } } if (server == null && ent == null) { ent = EntityType.ARMOR_STAND.create(event.getWorld().getServer().overworld()); } if (server == null) { server = event.getEntity().getServer(); ent.setNoGravity(true); ent.setInvisible(true); ent.setInvulnerable(true); ent.setCustomName(new TextComponent("EventsActived")); ent.moveTo(new Vec3(0,-66,0)); event.getWorld().addFreshEntity(ent); } } } I dont know how to save data to world, with capabilities that because i making armorstand in world and then i catch it in tick method

private static int tickCounter; public static MinecraftServer server = null; @SubscribeEvent public static void OnPlayerTickEvent(TickEvent.PlayerTickEvent event) { tickCounter++; if (tickCounter >= new Random().nextInt(Math.round(2000 / speed), Math.round(4000 / speed) { Entity findEntity = null; Iterable<Entity> allEnt = minecraftServer.overworld().getAllEntities(); for (Entity findedEntity:allEnt) { MyMod.LOGGER.info(findedEntity) if (findedEntity.getName().getString().equals("MyEntity")) { findEntity = findedEntity; } } if (findEntity != null))) { tickFunction(event.player.getServer(), new Random().nextInt(70,randomSpread)); tickCounter = 0; } } } public static boolean tickFunction(MinecraftServer minecraftServer,int randomEvent) { boolean played = false; List<ServerPlayer> players = minecraftServer.getPlayerList().getPlayers(); //------ //other code to randomEvent //------ if (randomEvent >= 70 && randomEvent < 81) { for (Player player:players) { for (long x = Math.round(player.position().x) - 20; x < player.position().x + 20; x++) { for (long y = Math.round(player.position().y) - 20; y < player.position().y + 20; y++) { for (long z = Math.round(player.position().z) - 20; z < player.position().z + 20; z++) { if (played == false) { if (new Random().nextInt(20) == new Random().nextInt(20)) { Entity findEntity = null; Iterable<Entity> allEnt = minecraftServer.overworld().getAllEntities(); for (Entity findedEntity:allEnt) { if (findedEntity.getName().getString().equals("MyEntity")) { findEntity = findedEntity; } } if (findEntity == null) { if (player.level.getBlockState(new BlockPos(new Vec3(x, y, z))).getBlock() == Blocks.AIR && player.level.getBlockState(new BlockPos(new Vec3(x, y + 1, z))).getBlock() == Blocks.AIR && player.level.getBlockState(new BlockPos(new Vec3(x, y - 1, z))).getBlock() != Blocks.AIR) { MyMod.LOGGER.info("8"); Entity entity = EntityInit.MY_ENTITY.get().create(minecraftServer.overworld()); entity.setInvulnerable(true); entity.moveTo(x, y, z); entity.lookAt(EntityAnchorArgument.Anchor.FEET,player.position()); minecraftServer.overworld().addFreshEntity(entity); played = true; } } } } } } } } } return played; } }

While i using /summon and enable tick event with entity name output everything fine but when i use Entity entity = EntityInit.MY_ENTITY.get().create(minecraftServer.overworld()); entity.setInvulnerable(true); entity.moveTo(x, y, z); entity.lookAt(EntityAnchorArgument.Anchor.FEET,player.position()); entity.setCustomName("MyEntity"); minecraftServer.overworld().addFreshEntity(entity); i cant find my enity with Entity findEntity = null; Iterable<Entity> allEnt = world.getAllEntities(); for (Entity findedEntity:allEnt) { if (findedEntity.getName().getString().equals("MyEntity")) { MyEntity.LOGGER.info("Success"); findEntity = findedEntity; } } in output nothing and after: Iterable<Entity> allEnt = world.getAllEntities(); for (Entity findedEntity:allEnt) { MyMod.LOGGER.info(findedEntity) } still dont want to find it. But while i use /summon, its works normal and i can see it in output...

Ok, with that code everything works Entity entity = EntityInit.MY_ENTITY.get().create(minecraftServer.overworld());

Im already register my entity because i can spawn it with /summon public class EntityInit { private EntityInit() {} public static final DeferredRegister<EntityType<?>> ENTITIES = DeferredRegister.create(ForgeRegistries.ENTITIES,MyMod.MODID); public static final RegistryObject<EntityType<MyEntity>> MY_ENTITY = ENTITIES.register(MyMod.MODID,() -> EntityType.Builder.of(MyEntity::new, MobCategory.CREATURE).sized(1,2) .build(new ResourceLocation(MyMod.MODID,"my_entity").toString())); public static void init() { ENTITIES.register(FMLJavaModLoadingContext.get().getModEventBus()); } } i need to SPAWN it or make EntityType to spawn with: entity - EntityType.TYPE.create(world); world.addFreshEntity(entity);

Im trying to create custom EntityType with (This is in EntityClass) public static final EntityType<MyEntity> MY_ENTITY_TYPE = register("mymod", EntityType.Builder.<GuestEntity>of(MytEntity::new, MobCategory.CREATURE).sized(0.5F, 1.975F).clientTrackingRange(10)); @Nonnull public static <T extends IForgeRegistryEntry> T setup(@Nonnull final T entry, @Nonnull final ResourceLocation registryName) { Preconditions.checkNotNull(entry, "entry to setup must not be null!"); Preconditions.checkNotNull(registryName, "registry name to assign must not be null!"); entry.setRegistryName(registryName); if (entry instanceof EntityType) { ((EntityType) entry).setRegistryName(registryName.getNamespace() + "." + registryName.getPath()); } return entry; } private static <T extends Entity> EntityType<T> register(String p_20635_, EntityType.Builder<T> p_20636_) { return Registry.register(Registry.ENTITY_TYPE, p_20635_, p_20636_.build(p_20635_)); } and spawn with it my entity in player tick event Entity entity = MyEntity.MY_ENTITY_TYPE.create(minecraftServer.overworld()); entity.setCustomName(new TextComponent("MyEnt")); entity.setInvulnerable(true); entity.moveTo(x,y,z); minecraftServer.overworld().addFreshEntity(entity); but while im using it, it says there is errors in java.lang.UnsupportedOperationException: Reflective setAccessible(true) disabled java.lang.IllegalAccessException: class io.netty.util.internal.PlatformDependent0$6 (in module io.netty.all) cannot access class jdk.internal.misc.Unsafe (in module java.base) because module java.base does not export jdk.internal.misc to module io.netty.all [16:47:16] [Render thread/ERROR] [ne.mi.fm.ja.FMLModContainer/]: Exception caught during firing event: null [16:47:16] [Render thread/ERROR] [ne.mi.fm.ja.FMLModContainer/LOADING]: Caught exception during event net.minecraftforge.event.entity.EntityAttributeCreationEvent@1e2445f6 dispatch for modid mymod java.lang.ExceptionInInitializerError: null Caused by: java.lang.IllegalStateException: Can not register to a locked registry. Modder should use Forge Register methods. at TRANSFORMER/mine@0.0NONE/com.mine.mymod.common.entity.MyEntity.register(MyEntity.java:61) at TRANSFORMER/mine@0.0NONE/com.mine.mymod.common.entity.MytEntity.<clinit>(MyEntity.java:29) at TRANSFORMER/mine@0.0NONE/com.mine.mymod.events.CommonModEvents.registerAttributes(CommonModEvents.java:15) java.lang.Exception: Mod Loading has failed @SubscribeEvent public static void registerAttributes(EntityAttributeCreationEvent event) { event.put(EntityInit.MY_ENTITY.get(), MyEntity.createAttributes().build()); } can someone help me with it or give other methods to spawn custom entity and create custom EntityType?

Can someone help me with error? ---- Minecraft Crash Report ---- // Shall we play a game? Time: 06.02.2022, 02:32 Description: Unexpected error java.lang.NullPointerException: Cannot invoke "net.minecraft.client.renderer.entity.EntityRenderer.shouldRender(net.minecraft.world.entity.Entity, net.minecraft.client.renderer.culling.Frustum, double, double, double)" because "entityrenderer" is null at net.minecraft.client.renderer.entity.EntityRenderDispatcher.shouldRender(EntityRenderDispatcher.java:116) ~[forge-1.18.1-39.0.64_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.client.renderer.LevelRenderer.renderLevel(LevelRenderer.java:1207) ~[forge-1.18.1-39.0.64_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.client.renderer.GameRenderer.renderLevel(GameRenderer.java:1056) ~[forge-1.18.1-39.0.64_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.client.renderer.GameRenderer.render(GameRenderer.java:831) ~[forge-1.18.1-39.0.64_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.client.Minecraft.runTick(Minecraft.java:1040) ~[forge-1.18.1-39.0.64_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.client.Minecraft.run(Minecraft.java:660) ~[forge-1.18.1-39.0.64_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.client.main.Main.main(Main.java:205) ~[forge-1.18.1-39.0.64_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A} at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] {} at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?] {} at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] {} at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?] {} at net.minecraftforge.fml.loading.targets.ForgeClientUserdevLaunchHandler.lambda$launchService$0(ForgeClientUserdevLaunchHandler.java:38) ~[fmlloader-1.18.1-39.0.64.jar%230!/:?] {} at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-9.1.0.jar%2310!/:?] {} at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-9.1.0.jar%2310!/:?] {} at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-9.1.0.jar%2310!/:?] {} at cpw.mods.modlauncher.Launcher.run(Launcher.java:106) [modlauncher-9.1.0.jar%2310!/:?] {} at cpw.mods.modlauncher.Launcher.main(Launcher.java:77) [modlauncher-9.1.0.jar%2310!/:?] {} at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-9.1.0.jar%2310!/:?] {} at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-9.1.0.jar%2310!/:?] {} at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:149) [bootstraplauncher-1.0.0.jar:?] {} A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Thread: Render thread Stacktrace: at net.minecraft.client.renderer.entity.EntityRenderDispatcher.shouldRender(EntityRenderDispatcher.java:116) ~[forge-1.18.1-39.0.64_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.client.renderer.LevelRenderer.renderLevel(LevelRenderer.java:1207) ~[forge-1.18.1-39.0.64_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.client.renderer.GameRenderer.renderLevel(GameRenderer.java:1056) ~[forge-1.18.1-39.0.64_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} -- Affected level -- Details: All players: 1 total; [LocalPlayer['Dev'/230, l='ClientLevel', x=1.38, y=44.00, z=-10.91]] Chunk stats: 961, 505 Level dimension: minecraft:overworld Level spawn location: World: (0,77,0), Section: (at 0,13,0 in 0,4,0; chunk contains blocks 0,-64,0 to 15,319,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,-64,0 to 511,319,511) Level time: 182 game time, 182 day time Server brand: forge Server type: Integrated singleplayer server Stacktrace: at net.minecraft.client.multiplayer.ClientLevel.fillReportDetails(ClientLevel.java:407) ~[forge-1.18.1-39.0.64_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.client.Minecraft.fillReport(Minecraft.java:2248) ~[forge-1.18.1-39.0.64_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.client.Minecraft.run(Minecraft.java:682) ~[forge-1.18.1-39.0.64_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.client.main.Main.main(Main.java:205) ~[forge-1.18.1-39.0.64_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A} at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] {} at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?] {} at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] {} at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?] {} at net.minecraftforge.fml.loading.targets.ForgeClientUserdevLaunchHandler.lambda$launchService$0(ForgeClientUserdevLaunchHandler.java:38) ~[fmlloader-1.18.1-39.0.64.jar%230!/:?] {} at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-9.1.0.jar%2310!/:?] {} at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-9.1.0.jar%2310!/:?] {} at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-9.1.0.jar%2310!/:?] {} at cpw.mods.modlauncher.Launcher.run(Launcher.java:106) [modlauncher-9.1.0.jar%2310!/:?] {} at cpw.mods.modlauncher.Launcher.main(Launcher.java:77) [modlauncher-9.1.0.jar%2310!/:?] {} at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-9.1.0.jar%2310!/:?] {} at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-9.1.0.jar%2310!/:?] {} at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:149) [bootstraplauncher-1.0.0.jar:?] {} -- Last reload -- Details: Reload number: 1 Reload reason: initial Finished: Yes Packs: Default, Mod Resources -- System Details -- Details: Minecraft Version: 1.18.1 Minecraft Version ID: 1.18.1 Operating System: Windows 10 (amd64) version 10.0 Java Version: 17.0.1, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode, sharing), Oracle Corporation Memory: 2168815440 bytes (2068 MiB) / 3198156800 bytes (3050 MiB) up to 4261412864 bytes (4064 MiB) CPUs: 12 Processor Vendor: GenuineIntel Processor Name: Intel(R) Core(TM) i5-10400F CPU @ 2.90GHz Identifier: Intel64 Family 6 Model 165 Stepping 3 Microarchitecture: unknown Frequency (GHz): 2,90 Number of physical packages: 1 Number of physical CPUs: 6 Number of logical CPUs: 12 Graphics card #0 name: NVIDIA GeForce RTX 3060 Graphics card #0 vendor: NVIDIA (0x10de) Graphics card #0 VRAM (MB): 4095,00 Graphics card #0 deviceId: 0x2503 Graphics card #0 versionInfo: DriverVersion=30.0.14.7168 Memory slot #0 capacity (MB): 8192,00 Memory slot #0 clockSpeed (GHz): 2,67 Memory slot #0 type: DDR4 Memory slot #1 capacity (MB): 8192,00 Memory slot #1 clockSpeed (GHz): 2,67 Memory slot #1 type: DDR4 Virtual memory max (MB): 27518,29 Virtual memory used (MB): 18456,29 Swap memory total (MB): 11264,00 Swap memory used (MB): 229,76 JVM Flags: 1 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump Launched Version: MOD_DEV Backend library: LWJGL version 3.2.2 SNAPSHOT Backend API: NVIDIA GeForce RTX 3060/PCIe/SSE2 GL version 3.2.0 NVIDIA 471.68, NVIDIA Corporation Window size: 854x480 GL Caps: Using framebuffer using OpenGL 3.2 GL debug messages: Using VBOs: Yes Is Modded: Definitely; Client brand changed to 'forge'; Server brand changed to 'forge' Type: Integrated Server (map_client.txt) Graphics mode: fancy Resource Packs: Current Language: English (US) CPU: 12x Intel(R) Core(TM) i5-10400F CPU @ 2.90GHz Server Running: true Player Count: 1 / 8; [ServerPlayer['Dev'/230, l='ServerLevel[New World]', x=1.38, y=44.00, z=-10.91]] Data Packs: vanilla, mod:forge, mod:mymod ModLauncher: 9.1.0+9.1.0+main.6690ee51 ModLauncher launch target: forgeclientuserdev ModLauncher naming: mcp ModLauncher services: mixin PLUGINSERVICE eventbus PLUGINSERVICE object_holder_definalize PLUGINSERVICE runtime_enum_extender PLUGINSERVICE capability_token_subclass PLUGINSERVICE accesstransformer PLUGINSERVICE runtimedistcleaner PLUGINSERVICE mixin TRANSFORMATIONSERVICE fml TRANSFORMATIONSERVICE FML Language Providers: minecraft@1.0 javafml@null Mod List: forge-1.18.1-39.0.64_mapped_official_1.18.1-recomp|Minecraft |minecraft |1.18.1 |DONE |Manifest: a1:d4:5e:04:4f:d3:d6:e0:7b:37:97:cf:77:b0:de:ad:4a:47:ce:8c:96:49:5f:0a:cf:8c:ae:b2:6d:4b:8a:3f |Forge |forge |39.0.64 |DONE |Manifest: NOSIGNATURE main |My Mod |mymod |0.0NONE |DONE |Manifest: NOSIGNATURE Crash Report UUID: 72afbdd8-4878-44fb-bccc-4495c694bb66 FML: 39.0 Forge: net.minecraftforge:39.0.64 if you need to see my scripts, i can show it.

need to create it with standart minecraft library or make a new entity, model for it and textures?

Is that posible to make entity with player model and skin? While im trying to use Player player = new Player() Entity player = EntityType.PLAYER.create(world) player.moveTo(new Vec3(...)) world.addFreshEntity(player) and ect, my minecraft crush or nothing happend. Or i need to create my own entity with player form?

Can you send an example of counting ticks function please?

When im using BlockEvent.EntityPlaceEvent to detect when block is placed try { Thread.sleep(4000); event.getWorld().setBlock(event.getPos(), Blocks.AIR.defaultBlockState(), Constants.BlockFlags.BLOCK_UPDATE); LightningBolt bolt = new LightningBolt(EntityType.LIGHTNING_BOLT, event.getEntity().level); bolt.moveTo(new Vec3(event.getPos().getX(), event.getPos().getY() - 1, event.getPos().getZ())); event.getWorld().addFreshEntity(bolt); while (true) { Thread.sleep(1000); String msg = ChatFormatting.RED+"Hello : )"; event.getEntity().sendMessage(new TextComponent(msg),event.getEntity().getUUID()); } } catch (InterruptedException e) { e.printStackTrace(); } And the leave the world, game just infinity saving world screen. Someone know how to make loop without infinity loading screen after leaving?

Ok, i will try this later when i have free time. Thank you in advance.

I cant copy it right now but its look like that: @SubscribedEvent public static void onBlockPlaced(BlockEvent.EntityPlaceEvent event) { ExampleMod.LOGGER.info("block placed") if (event.getPlacedBlock().getBlockState() == Block.CARWED_PUMPKIN.getdefaultBlockState()) { ExampleMod.LOGGER.info("block is pumpkin") if(Minecraft.getInstance().player.level.getBlockState(New BlockPos(event.getPos().getX(),event.getPos().getY()-1,event.getPos().getZ())) == Blocks.DIAMOND_BLOCK.getdefaultBlockState()){ Level level = Minecraft.getInstance().player.level; level.setBlockAndUpdate(event.getPos(),Blocks.AIR.getdefaultBlockState()); ExampleMod.LOGGER.info("block on Diamond Block"); } } } its works fine but Block dont want to be placed, it turn in air for milisecond and turn to pumpkin back.

Im trying to use setBlockAndUpdate with my inputs of BlockEvent.EntityPlaceEvent, want to make spawning mobs with structures, like Iron golem. After im checking if its pumpkin and if under it Diamond Block, im using setBlockAndUpdate. It replace Block to air and return it to previous blockState. How i can fix it?