Jump to content
Search In
  • More options...
Find results that contain...
Find results in...

Animate blocks


matthew123
 Share

Recommended Posts

My client sends a packet to activate an ability which generates a wall in front of it, layer by layer (on the Y axis) every tick. I would like to have the server place blocks every tick without sending updates to the clients, and every client in range to animate a block entity going upwards, then transforming into a block on every tick. How would I go about doing that?

Link to comment
Share on other sites

I would do it by creating a subclass of FallingBlock (if it is still called that) and adding a targetHeight field, then making the block "fall" or "rise" to meet that height, before turning into the specified block. That way most of the code should be reusable from the parent class.

You will have to register it as a new EntityType.

Then when your block rises, you create a new instance of your entity, with the targetHeight one block higher than the current y position.

Link to comment
Share on other sites

14 minutes ago, Alpvax said:

I would do it by creating a subclass of FallingBlock (if it is still called that) and adding a targetHeight field, then making the block "fall" or "rise" to meet that height, before turning into the specified block. That way most of the code should be reusable from the parent class.

You will have to register it as a new EntityType.

Then when your block rises, you create a new instance of your entity, with the targetHeight one block higher than the current y position.

I am not sure I follow. How would I make the block "fall" or "rise"?

Link to comment
Share on other sites

In the "tick" method , you need to set the y component of the deltaMovement to be positive (to rise) or negative (to fall). The exact value that you use will determine how fast.

//FallingBlockEntity uses the following values (when gravity is not disabled)
//by adding the velocity, it allows the entity to have smooth movement and allows directions other than straight down
this.setDeltaMovement(this.getDeltaMovement().add(0.0D, -0.04D, 0.0D));

Looking at the tick method of the FallingBlockEntity class it may give you a better idea of how it works.

Edited by Alpvax
Looked up method names and removed obsolete info
Link to comment
Share on other sites

19 hours ago, Alpvax said:

In the "tick" method , you need to set the y component of the deltaMovement to be positive (to rise) or negative (to fall). The exact value that you use will determine how fast.

//FallingBlockEntity uses the following values (when gravity is not disabled)
//by adding the velocity, it allows the entity to have smooth movement and allows directions other than straight down
this.setDeltaMovement(this.getDeltaMovement().add(0.0D, -0.04D, 0.0D));

Looking at the tick method of the FallingBlockEntity class it may give you a better idea of how it works.

Thanks, but I had already solved it.

Link to comment
Share on other sites

On 11/30/2021 at 4:39 PM, Alpvax said:

In the "tick" method , you need to set the y component of the deltaMovement to be positive (to rise) or negative (to fall). The exact value that you use will determine how fast.

//FallingBlockEntity uses the following values (when gravity is not disabled)
//by adding the velocity, it allows the entity to have smooth movement and allows directions other than straight down
this.setDeltaMovement(this.getDeltaMovement().add(0.0D, -0.04D, 0.0D));

Looking at the tick method of the FallingBlockEntity class it may give you a better idea of how it works.

I have another issue. Let me explain my use of the entity.

The server is spawning that entity, that just goes upwards. When it reaches the position of the block above,  it deletes itself. At that time, the entity will place a block there. 

This entity is spawned only on the client, using a packet. Multiple may be spawned at a time. 

I haven't made the entity place the blocks yet, because I ran into an issue. 

My game bugs out randomly, when spawning these entities. My modded overlay disappears, my placer stops moving and oscillates back and forth, and I can't do anything. 


public class MudWallBlockEntity extends Entity {
    private BlockPos startingBlockPos;
    private BlockState blockState;

    private int ticks;

    public MudWallBlockEntity(EntityType<? extends MudWallBlockEntity> entityType, World level){
        super(entityType, level);
    }

    public MudWallBlockEntity(EntityType<? extends MudWallBlockEntity> entityType, World level, BlockPos position, BlockState block){
        super(entityType, level);
        this.startingBlockPos = position;
        this.blockState = block;

        this.setPos(position.getX(), position.getY(), position.getZ());
        this.ticks = 0;
    }

    @Override
    protected void defineSynchedData() { }

    @Override
    protected void readAdditionalSaveData(@Nonnull CompoundNBT pCompound) { }

    @Override
    protected void addAdditionalSaveData(@Nonnull CompoundNBT pCompound) { }

    @Override
    public IPacket<?> getAddEntityPacket() {
        LogManager.getLogger().error("THE GAME CRASHED BECAUSE THE /SUMMON COMMAND WAS USED TO SUMMON MudWallBlockEntity!");
        return null;
    }

    @Override
    public void tick() {
        if(ticks++ == 0){
            // the entity was placed into the world.
        }
        LogManager.getLogger().info("ticks: " + ticks);
        if(blockPosition().getY() >= startingBlockPos.getY()){
            remove();
            return;
        }

        setDeltaMovement(0, 0.05, 0);
        move(MoverType.SELF, getDeltaMovement());
    }

    public BlockState getBlockState() {
        return blockState;
    }

    public BlockPos getStartingBlockPos(){
        return startingBlockPos;
    }

    @Override
    public boolean canBeCollidedWith() {
        return false;
    }

    @Override
    protected boolean canAddPassenger(Entity pPassenger) {
        return false;
    }

    @Override
    public boolean canChangeDimensions() {
        return false;
    }
}

public class MudWallBlockEntityRenderer  extends EntityRenderer<MudWallBlockEntity> {
    public MudWallBlockEntityRenderer(EntityRendererManager entityRendererManager) {
        super(entityRendererManager);
        this.shadowRadius = 0.5F;
    }

    @Override
    public void render(MudWallBlockEntity entity, float entityYaw, float partialTicks, MatrixStack matrixStack, IRenderTypeBuffer buffer, int packedLight) {
        BlockState blockstate = entity.getBlockState();
        if (blockstate.getRenderShape() == BlockRenderType.MODEL) {
            World world = entity.getCommandSenderWorld();
            if (blockstate != world.getBlockState(entity.blockPosition()) && blockstate.getRenderShape() != BlockRenderType.INVISIBLE) {
                matrixStack.pushPose();
                BlockPos blockpos = new BlockPos(entity.getX(), entity.getBoundingBox().maxY, entity.getZ());
                matrixStack.translate(-0.5D, 0.0D, -0.5D);
                BlockRendererDispatcher blockrendererdispatcher = Minecraft.getInstance().getBlockRenderer();
                for (net.minecraft.client.renderer.RenderType type : net.minecraft.client.renderer.RenderType.chunkBufferLayers()) {
                    if (RenderTypeLookup.canRenderInLayer(blockstate, type)) {
                        net.minecraftforge.client.ForgeHooksClient.setRenderLayer(type);
                        blockrendererdispatcher.getModelRenderer().tesselateBlock(world, blockrendererdispatcher.getBlockModel(blockstate), blockstate, blockpos, matrixStack,buffer.getBuffer(type), false, new Random(), blockstate.getSeed(entity.getStartingBlockPos()), OverlayTexture.NO_OVERLAY);
                    }
                }
                net.minecraftforge.client.ForgeHooksClient.setRenderLayer(null);
                matrixStack.popPose();
                super.render(entity, entityYaw, partialTicks, matrixStack, buffer, packedLight);
            }
        }
    }

    @Override
    public ResourceLocation getTextureLocation(MudWallBlockEntity pEntity) {
        return AtlasTexture.LOCATION_BLOCKS;
    }
}

Spawning code:

public static void handlePacket(ServerSpawnMudWallEntityPacket message, Supplier<NetworkEvent.Context> ctx) {
    PlayerEntity player = (PlayerEntity) Minecraft.getInstance().cameraEntity;
    ClientWorld level = (ClientWorld) (player.getCommandSenderWorld());
    for(Tuple<BlockPos, UUID> spawnData : message.getSpawnList()){
        BlockPos blockPos = spawnData.getFirst();
        UUID uuid = spawnData.getSecond();
        MudWallBlockEntity entity = new MudWallBlockEntity(
                ModEntities.MUD_WALL_BLOCK_ENTITY.get(),
                level,
                blockPos,
                ModBlocks.TEMPORARY_DIRT_BLOCK.get().defaultBlockState());
        entity.setPacketCoordinates(blockPos.getX(), blockPos.getY(), blockPos.getZ());
        entity.moveTo(blockPos, 0f, 0f);
        entity.setUUID(uuid);
        level.putNonPlayerEntity(entities++, entity);
    }
}

The UUID is just UUID.getRandom. "entities" is an integer.

The value printed in the entity tick is one tick (so the method ran once before doing entity.remove())

Here is what happens:

https://streamable.com/mc98kl

 

Link to comment
Share on other sites

On 12/4/2021 at 4:11 PM, matthew123 said:

This entity is spawned only on the client

Why?

 

On 12/4/2021 at 4:11 PM, matthew123 said:
if(blockPosition().getY() >= startingBlockPos.getY()){
            remove();
            return;
        }

If it has moved so it is above where it started, stop. That's why your tick method only runs once.

 

I imagine that things are going wrong because you're using a client-side only Entity. Just do what the FallingBlockEntity does and use the same Entity both sides

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share



  • Recently Browsing

    No registered users viewing this page.

  • Posts

    • As title says. Already had to get some work arounds to get java working, and I don't have the ability to upgrade to windows 10.
    • I am having an issue running a server with my mod. I know that I am reaching across sides somewhere in my Mod, but could not find where this error is occurring in my mod. The crash report that I have attached below mentioned that it involved the LocalPlayer. However, when I searched my mod for LocalPlayer, I only found one case in the event that I have attached below. Can you find where I errored?   Crash Report: ---- Minecraft Crash Report ---- // I bet Cylons wouldn't have this problem. Time: 1/17/22, 8:10 PM Description: Mod loading error has occurred java.lang.Exception: Mod Loading has failed at net.minecraftforge.logging.CrashReportExtender.dumpModLoadingCrashReport(CrashReportExtender.java:69) ~[forge-1.18-38.0.17_mapped_official_1.18-recomp.jar%2376%2382!:?] {re:classloading} at net.minecraftforge.server.loading.ServerModLoader.load(ServerModLoader.java:53) ~[forge-1.18-38.0.17_mapped_official_1.18-recomp.jar%2376%2382!:?] {re:classloading} at net.minecraft.server.Main.main(Main.java:104) ~[forge-1.18-38.0.17_mapped_official_1.18-recomp.jar%2377!:?] {re:classloading} 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.ForgeServerUserdevLaunchHandler.lambda$launchService$0(ForgeServerUserdevLaunchHandler.java:16) ~[fmlloader-1.18-38.0.17.jar%230!:?] {} at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-9.0.24.jar%2310!:?] {} at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-9.0.24.jar%2310!:?] {} at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-9.0.24.jar%2310!:?] {} at cpw.mods.modlauncher.Launcher.run(Launcher.java:106) [modlauncher-9.0.24.jar%2310!:?] {} at cpw.mods.modlauncher.Launcher.main(Launcher.java:77) [modlauncher-9.0.24.jar%2310!:?] {} at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-9.0.24.jar%2310!:?] {} at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-9.0.24.jar%2310!:?] {} at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:90) [bootstraplauncher-0.1.17.jar:?] {} A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Thread: main Stacktrace: at net.minecraftforge.fml.loading.RuntimeDistCleaner.processClassWithFlags(RuntimeDistCleaner.java:71) ~[fmlloader-1.18-38.0.17.jar%230!:1.0] {} -- MOD examplemod -- Details: Mod File: main Failure message: Example Mod (examplemod) has failed to load correctly java.lang.RuntimeException: Attempted to load class net/minecraft/client/player/LocalPlayer for invalid dist DEDICATED_SERVER Mod Version: 3.0 Mod Issue URL: NOT PROVIDED Exception message: java.lang.RuntimeException: Attempted to load class net/minecraft/client/player/LocalPlayer for invalid dist DEDICATED_SERVER Stacktrace: at net.minecraftforge.fml.loading.RuntimeDistCleaner.processClassWithFlags(RuntimeDistCleaner.java:71) ~[fmlloader-1.18-38.0.17.jar:1.0] {} at cpw.mods.modlauncher.LaunchPluginHandler.offerClassNodeToPlugins(LaunchPluginHandler.java:88) ~[modlauncher-9.0.7.jar:?] {} at cpw.mods.modlauncher.ClassTransformer.transform(ClassTransformer.java:120) ~[modlauncher-9.0.7.jar:?] {} at cpw.mods.modlauncher.TransformingClassLoader.maybeTransformClassBytes(TransformingClassLoader.java:50) ~[modlauncher-9.0.7.jar:?] {} at cpw.mods.cl.ModuleClassLoader.readerToClass(ModuleClassLoader.java:110) ~[securejarhandler-0.9.54.jar:?] {} at cpw.mods.cl.ModuleClassLoader.lambda$findClass$16(ModuleClassLoader.java:213) ~[securejarhandler-0.9.54.jar:?] {} at cpw.mods.cl.ModuleClassLoader.loadFromModule(ModuleClassLoader.java:223) ~[securejarhandler-0.9.54.jar:?] {} at cpw.mods.cl.ModuleClassLoader.findClass(ModuleClassLoader.java:213) ~[securejarhandler-0.9.54.jar:?] {} at cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:130) ~[securejarhandler-0.9.54.jar:?] {} at java.lang.ClassLoader.loadClass(ClassLoader.java:520) ~[?:?] {} at java.lang.Class.forName0(Native Method) ~[?:?] {} at java.lang.Class.forName(Class.java:467) ~[?:?] {} at net.minecraftforge.fml.javafmlmod.AutomaticEventSubscriber.lambda$inject$6(AutomaticEventSubscriber.java:75) ~[javafmllanguage-1.18-38.0.17.jar%2378!:?] {} at java.util.ArrayList.forEach(ArrayList.java:1511) ~[?:?] {} at net.minecraftforge.fml.javafmlmod.AutomaticEventSubscriber.inject(AutomaticEventSubscriber.java:62) ~[javafmllanguage-1.18-38.0.17.jar%2378!:?] {} at net.minecraftforge.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:91) ~[javafmllanguage-1.18-38.0.17.jar%2378!:?] {} at net.minecraftforge.fml.ModContainer.lambda$buildTransitionHandler$4(ModContainer.java:120) ~[fmlcore-1.18-38.0.17.jar%2380!:?] {} at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1804) ~[?:?] {} at java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1796) ~[?:?] {} at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373) ~[?:?] {} at java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182) ~[?:?] {} at java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655) ~[?:?] {} at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622) ~[?:?] {} at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165) ~[?:?] {} -- System Details -- Details: Minecraft Version: 1.18 Minecraft Version ID: 1.18 Operating System: Windows 10 (amd64) version 10.0 Java Version: 17.0.1, Eclipse Adoptium Java VM Version: OpenJDK 64-Bit Server VM (mixed mode, sharing), Eclipse Adoptium Memory: 320780752 bytes (305 MiB) / 1127219200 bytes (1075 MiB) up to 2122317824 bytes (2024 MiB) CPUs: 4 Processor Vendor: GenuineIntel Processor Name: Intel(R) Core(TM) i3-7020U CPU @ 2.30GHz Identifier: Intel64 Family 6 Model 142 Stepping 9 Microarchitecture: Amber Lake Frequency (GHz): 2.30 Number of physical packages: 1 Number of physical CPUs: 2 Number of logical CPUs: 4 Graphics card #0 name: Intel(R) HD Graphics 620 Graphics card #0 vendor: Intel Corporation (0x8086) Graphics card #0 VRAM (MB): 1024.00 Graphics card #0 deviceId: 0x5921 Graphics card #0 versionInfo: DriverVersion=27.20.100.9664 Memory slot #0 capacity (MB): 8192.00 Memory slot #0 clockSpeed (GHz): 2.67 Memory slot #0 type: DDR4 Virtual memory max (MB): 16427.04 Virtual memory used (MB): 10800.33 Swap memory total (MB): 8334.11 Swap memory used (MB): 434.15 JVM Flags: 1 total; -XX:+ShowCodeDetailsInExceptionMessages ModLauncher: 9.0.24+9.0.24+main.7be9f01d ModLauncher launch target: forgeserveruserdev 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-1.18-38.0.17_mapped_official_1.18-recomp.jar|Minecraft |minecraft |1.18 |COMMON_SET|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 main |Example Mod |examplemod |3.0 |ERROR |Manifest: NOSIGNATURE |Forge |forge |38.0.17 |COMMON_SET|Manifest: NOSIGNATURE Crash Report UUID: a2d945ef-ef76-4bb1-ac09-f2b263e52519 FML: 38.0 Forge: net.minecraftforge:38.0.17 Mod Event with LocalPlayer: @SubscribeEvent public static void renderGameOverlay(RenderGameOverlayEvent.Post event) { if(!(Thread.currentThread().getThreadGroup() == SidedThreadGroups.SERVER)) { Minecraft mc = Minecraft.getInstance(); LocalPlayer player = mc.player; if (mc.gameMode.canHurtPlayer() && event.getType() == RenderGameOverlayEvent.ElementType.ALL) { ModRender renderer = new ModRender(Minecraft.getInstance()); renderer.renderToolbars(Minecraft.getInstance(), player); } } }  
    • That's because redstone doesn't use tile entities. It's all handled by blockstates. There's no way to achieve what you want as far as I know.
  • Topics

  • Who's Online (See full list)

×
×
  • Create New...

Important Information

By using this site, you agree to our Privacy Policy.