Jump to content

How do I sync a variable between an entity's client/server instance?


Recommended Posts

Posted (edited)

I'm trying to make a projectile with several varieties, and instead of making 3 separate entites with largely the same code, I'm using an enum to distinguish between them. The only issue is, I want the different entity types to create different particle effects, but I can only access the 'type' enum on the server side. How would I go about making sure the client also has access to the enum?

Here's my projectile class so far

Spoiler

//Imports removed

public class EntityThrownBrick extends EntityThrowable {

    public enum BrickType {
        NORMAL,
        NETHER,
        ALCHEMICAL
    }

    private BrickType type;

    public EntityThrownBrick(World worldIn) {
        super(worldIn);
    }

    public EntityThrownBrick(World worldIn, double x, double y, double z) {
        super(worldIn, x, y, z);
    }

    public EntityThrownBrick(World worldIn, EntityLivingBase throwerIn) {
        super(worldIn, throwerIn);
    }

    public static void registerFixesBrick(DataFixer fixer) {
        EntityThrowable.registerFixesThrowable(fixer,"Brick");
    }

    /**
     * Set what type of brick this is
     * @param type The type of brick
     */
    public void setBrickType(BrickType type) {
        this.type = type;
    }

    /**
     * Get the brick type of this thrown brick
     * @return The type of brick
     */
    public BrickType getBrickType() {
        return this.type;
    }

    @Override
    public void onEntityUpdate() {
        super.onEntityUpdate();

        //Particles! Currently does not work
        if (!world.isRemote && this.getBrickType() == BrickType.NETHER) {
            for (int i = 0; i < 2; ++i) {
                this.world.spawnParticle(EnumParticleTypes.SMOKE_LARGE, this.posX + (this.rand.nextDouble() - 0.5D) * (double) this.width, this.posY + this.rand.nextDouble() * (double) this.height, this.posZ + (this.rand.nextDouble() - 0.5D) * (double) this.width, 0.0D, 0.0D, 0.0D);
            }
        }
    }


    /**
     * Called when this EntityThrowable hits a block or entity.
     *
     * @param result
     */
    @Override
    protected void onImpact(RayTraceResult result) {

        //If we hit an entity
        if (result.entityHit != null) {

            //Calculate damage
            int dmg = 3;
            //Do more to skeletons
            if (result.entityHit instanceof EntitySkeleton || result.entityHit instanceof EntityWitherSkeleton) {
                dmg = 6;
            }

            //Deal damage
            result.entityHit.attackEntityFrom(DamageSource.causeThrownDamage(this,this.getThrower()),(float)dmg);

            if (!this.world.isRemote) {
                //Additional effects
                switch (type) {
                    //Normal brick does nothing
                    case NORMAL:
                        break;
                    case NETHER:
                        //Nether brick lights enemies on fire
                        result.entityHit.setFire(2);
                        break;
                    case ALCHEMICAL:
                        //Alchemical brick summons a lightning bolt
                        if (rand.nextDouble() < .1) {
                            world.addWeatherEffect(new EntityLightningBolt(world, posX, posY, posZ, false));
                        }
                }
            }

        //Handle block hits
        }else if (result.typeOfHit == RayTraceResult.Type.BLOCK) {

            IBlockState state = this.world.getBlockState(result.getBlockPos());

            //Check for glass
            //TODO make this break less things
            if (state.getMaterial() == Material.GLASS) {
                this.world.destroyBlock(result.getBlockPos(),true);

            //Check for additional effects
            }else if (!this.world.isRemote) {

                if (type == BrickType.NETHER && state.getBlock() == Blocks.SAND) {

                    //'Smelt' glass
                    this.world.setBlockState(result.getBlockPos(), Blocks.GLASS.getDefaultState());

                    //Add sound effect
                    world.playSound(posX, posY, posZ, SoundEvents.BLOCK_LAVA_EXTINGUISH, SoundCategory.BLOCKS, 1.0f, 1.0f,false);

                //Alchemical bricks convert things based on a table
                }else if (type == BrickType.ALCHEMICAL) {
                  //Unrelated code removed
                }
            }

        }

        //Kill entity
        if (!this.world.isRemote)
        {
            //Particle effects, does not currently work due to client/server issues
            switch (type) {

                case NETHER:
                    for (int i = 0; i < 8; i++) {
                        this.world.spawnParticle(EnumParticleTypes.SMOKE_NORMAL, posX + (rand.nextDouble() * 2) - 1, posY + (rand.nextDouble() * 2) - 1, posZ + (rand.nextDouble() * 2) - 1, 0.0D, 0.0D, 0.0D);
                    }
                    break;
                case ALCHEMICAL:
                    for (int i = 0; i < 8; i++) {
                        this.world.spawnParticle(EnumParticleTypes.FLAME, posX + (rand.nextDouble() * 2) - 1, posY + (rand.nextDouble() * 2) - 1, posZ + (rand.nextDouble() * 2) - 1, 0.0D, 0.0D, 0.0D);
                    }
                    break;

            }

            //Kill entity
            this.world.setEntityState(this, (byte)3);
            this.setDead();
        }
    }
}

 

 

Edited by Sciman101

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
Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
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.

Announcements



  • Recently Browsing

    • No registered users viewing this page.
  • Posts

    • been getting this error and followed the old tick loop post however i cant figure out what file to delete Description: Exception in server tick loop java.lang.NullPointerException: Cannot invoke "net.minecraft.world.level.LevelAccessor.m_7654_()" because the return value of "net.minecraftforge.event.level.LevelEvent$Unload.getLevel()" is null     at com.lion.graveyard.platform.forge.HordeSpawner.onWorldUnload(HordeSpawner.java:41) ~[The_Graveyard_3.1_(FORGE)_for_1.20.1.jar%23196!/:?] {re:classloading}     at com.lion.graveyard.platform.forge.__HordeSpawner_onWorldUnload_Unload.invoke(.dynamic) ~[The_Graveyard_3.1_(FORGE)_for_1.20.1.jar%23196!/:?] {re:classloading,pl:eventbus:B}     at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:73) ~[eventbus-6.0.5.jar%2352!/:?] {}     at net.minecraftforge.eventbus.EventBus.post(EventBus.java:315) ~[eventbus-6.0.5.jar%2352!/:?] {}     at net.minecraftforge.eventbus.EventBus.post(EventBus.java:296) ~[eventbus-6.0.5.jar%2352!/:?] {}     at net.mehvahdjukaar.moonlight.api.platform.forge.PlatHelperImpl.invokeLevelUnload(PlatHelperImpl.java:279) ~[moonlight-1.20-2.13.66-forge.jar%23185!/:?] {re:classloading}     at net.mehvahdjukaar.moonlight.api.platform.PlatHelper.invokeLevelUnload(PlatHelper.java) ~[moonlight-1.20-2.13.66-forge.jar%23185!/:?] {re:mixin,re:classloading}     at net.mehvahdjukaar.moonlight.core.misc.FakeLevelManager.invalidate(FakeLevelManager.java:29) ~[moonlight-1.20-2.13.66-forge.jar%23185!/:?] {re:classloading}     at net.mehvahdjukaar.supplementaries.common.utils.fake_level.BlockTestLevel.invalidate(BlockTestLevel.java:34) ~[supplementaries-1.20-3.1.13.jar%23192!/:?] {re:classloading}     at net.mehvahdjukaar.supplementaries.common.block.faucet.FaucetBehaviorsManager.onReloadWithLevel(FaucetBehaviorsManager.java:129) ~[supplementaries-1.20-3.1.13.jar%23192!/:?] {re:classloading}     at net.mehvahdjukaar.supplementaries.common.events.ServerEvents.onServerStart(ServerEvents.java:160) ~[supplementaries-1.20-3.1.13.jar%23192!/:?] {re:mixin,re:classloading}     at net.mehvahdjukaar.supplementaries.common.events.forge.ServerEventsForge.onServerStart(ServerEventsForge.java:119) ~[supplementaries-1.20-3.1.13.jar%23192!/:?] {re:classloading}     at net.mehvahdjukaar.supplementaries.common.events.forge.__ServerEventsForge_onServerStart_ServerStartedEvent.invoke(.dynamic) ~[supplementaries-1.20-3.1.13.jar%23192!/:?] {re:classloading,pl:eventbus:B}     at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:73) ~[eventbus-6.0.5.jar%2352!/:?] {}     at net.minecraftforge.eventbus.EventBus.post(EventBus.java:315) ~[eventbus-6.0.5.jar%2352!/:?] {}     at net.minecraftforge.eventbus.EventBus.post(EventBus.java:296) ~[eventbus-6.0.5.jar%2352!/:?] {}     at net.minecraftforge.server.ServerLifecycleHooks.handleServerStarted(ServerLifecycleHooks.java:115) ~[forge-1.20.1-47.3.29-universal.jar%23212!/:?] {re:classloading}     at net.minecraft.server.MinecraftServer.m_130011_(MinecraftServer.java:638) ~[server-1.20.1-20230612.114412-srg.jar%23207!/:?] {re:mixin,pl:accesstransformer:B,xf:fml:xaeroworldmap:xaero_wm_minecraftserver,xf:fml:xaerominimap:xaero_minecraftserver,re:classloading,pl:accesstransformer:B,xf:fml:xaeroworldmap:xaero_wm_minecraftserver,xf:fml:xaerominimap:xaero_minecraftserver,pl:mixin:APP:unionlib.mixins.json:MinecraftServerMixin,pl:mixin:APP:citadel.mixins.json:MinecraftServerMixin,pl:mixin:APP:balm.mixins.json:MinecraftServerMixin,pl:mixin:A}     at net.minecraft.server.MinecraftServer.m_206580_(MinecraftServer.java:251) ~[server-1.20.1-20230612.114412-srg.jar%23207!/:?] {re:mixin,pl:accesstransformer:B,xf:fml:xaeroworldmap:xaero_wm_minecraftserver,xf:fml:xaerominimap:xaero_minecraftserver,re:classloading,pl:accesstransformer:B,xf:fml:xaeroworldmap:xaero_wm_minecraftserver,xf:fml:xaerominimap:xaero_minecraftserver,pl:mixin:APP:unionlib.mixins.json:MinecraftServerMixin,pl:mixin:APP:citadel.mixins.json:MinecraftServerMixin,pl:mixin:APP:balm.mixins.json:MinecraftServerMixin,pl:mixin:A}     at java.lang.Thread.run(Thread.java:833) ~[?:?] {}  
    • Online forums in general seem to be declining in popularity imo. There’s still value here for certain types of content, such as written tutorials and blog posts which would otherwise get lost in the chat history fairly quickly on Discord. Also for those that prefer the forums format ofc. But for faster support related topics, I agree that the Discord is probably your best bet at the moment. The speed of responses is also down to the ratio of volunteers - the player support forum still seems pretty active, but the coding ones much less so. Once you’re feeling more confident in your modding skills, be the change you want to see
    • try the same link, i swapped logs after sitting in the world for a few minutes then leaving. Lmk if it keeps happening then ill just send a video of the live log on modrinth
    • It is an issue with chimes
  • Topics

  • Who's Online (See full list)

    • There are no registered users currently online
×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.