[1.8][SOLVED] Problems with Server once again..

NovaViper · January 25, 2015

For some reason.. I'm getting all kinds of errors from the servers, saying this

[22:53:21] [server thread/ERROR]: Encountered an unexpected exception
net.minecraft.util.ReportedException: Ticking entity
at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:709) ~[MinecraftServer.class:?]
at net.minecraft.server.dedicated.DedicatedServer.updateTimeLightAndEntities(DedicatedServer.java:364) ~[DedicatedServer.class:?]
at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:598) ~[MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:478) [MinecraftServer.class:?]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_25]
Caused by: java.lang.NoSuchMethodError: common.zeroquest.entity.EntityForisZertum.spawnParticle()V
at common.zeroquest.entity.EntityForisZertum.onLivingUpdate(EntityForisZertum.java:295) ~[EntityForisZertum.class:?]
at net.minecraft.entity.EntityLivingBase.onUpdate(EntityLivingBase.java:1627) ~[EntityLivingBase.class:?]
at net.minecraft.entity.EntityLiving.onUpdate(EntityLiving.java:229) ~[EntityLiving.class:?]
at common.zeroquest.entity.EntityForisZertum.onUpdate(EntityForisZertum.java:365) ~[EntityForisZertum.class:?]
at net.minecraft.world.World.updateEntityWithOptionalForce(World.java:1865) ~[World.class:?]
at net.minecraft.world.WorldServer.updateEntityWithOptionalForce(WorldServer.java:732) ~[WorldServer.class:?]
at net.minecraft.world.World.updateEntity(World.java:1835) ~[World.class:?]
at net.minecraft.world.World.updateEntities(World.java:1664) ~[World.class:?]
at net.minecraft.world.WorldServer.updateEntities(WorldServer.java:571) ~[WorldServer.class:?]
at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:703) ~[MinecraftServer.class:?]
... 4 more
[22:53:21] [server thread/ERROR]: This crash report has been saved to: C:\Users\NovaPC\Desktop\ModStuff\Code1.8\eclipse\.\crash-reports\crash-2015-01-24_22.53.21-server.txt

And yes, I have made my methods switch from server to client but it still doesn't work. Here is part of the entity file of where the problems occurs:

    /**
     * Called frequently so the entity can update its state every tick as required. For example, zombies and skeletons
     * use this to react to sunlight and start to burn.
     */
@Override
    public void onLivingUpdate()
    {
        super.onLivingUpdate();
        spawnParticle();
        
    	for(int l = 0; l <= 4; ++l) //TODO
        {
    		 if(worldObj.rand.nextFloat() < footprint_chance) {
    			 continue;
    		 }
    		
            if(Constants.DEF_GRASSSTEP == true){
            	int x = MathHelper.floor_double(this.posX + (l % 2 * 2 - 1) * 0.25F);
            	int y = MathHelper.floor_double(this.posY) - 1 ;
            	int z = MathHelper.floor_double(this.posZ + (l / 2 % 2 * 2 - 1) * 0.25F);
            	BlockPos pos = new BlockPos(x, y, z);
            	IBlockState state = this.worldObj.getBlockState(pos);
            	boolean isAnyDirt = state.getBlock() == Blocks.dirt;
            	boolean isRegularDirt = isAnyDirt && state.getValue(BlockDirt.VARIANT) == BlockDirt.DirtType.DIRT;
            
            	if (isAnyDirt && isRegularDirt){ //TODO
            		this.worldObj.setBlockState(pos, footprint.getDefaultState());
            	}
            }
        }    
        
    	if (isServer() && this.isWet && !this.isShaking && !this.hasPath() && this.onGround)
        {
            this.isShaking = true;
            this.timeWolfIsShaking = 0.0F;
            this.prevTimeWolfIsShaking = 0.0F;
            this.worldObj.setEntityState(this, (byte);
        }

        if (isServer() && this.getAttackTarget() == null && this.isAngry())
        {
            this.setAngry(false);
        }
        
        if(Constants.DEF_HEALING == true && !this.isChild() && this.getHealth() <=10 && this.isTamed())
        {
       		this.addPotionEffect(new PotionEffect(10, 200));
        }
        
        if (this.getAttackTarget() == null && isTamed() && 15 > 0) {
            List list1 = worldObj.getEntitiesWithinAABB(EntityCreeper.class, AxisAlignedBB.fromBounds(posX, posY, posZ, posX + 1.0D, posY + 1.0D, posZ + 1.0D).expand(sniffRange(), 4D, sniffRange()));

            if (!list1.isEmpty() && !isSitting() && this.getHealth() > 1 && !this.isChild()) {
                canSeeCreeper = true;
            }
            else {
                canSeeCreeper = false;
            }
        }
    }

@SideOnly(Side.CLIENT)
public void spawnParticle(){
	double d0 = this.rand.nextGaussian() * 0.04D; //TODO
	double d1 = this.rand.nextGaussian() * 0.04D;
	double d2 = this.rand.nextGaussian() * 0.04D;
	if(isClient()){
	EntityForisDustFX var20 = new EntityForisDustFX(this.worldObj, this.posX + (double)(this.rand.nextFloat() * this.width * 2.0F) - (double)this.width, this.posY + 0.5D + (double)(this.rand.nextFloat() * this.height), this.posZ + (double)(this.rand.nextFloat() * this.width * 2.0F) - (double)this.width, d0, d1, d2);
        
	for (int i = 0; i < 7; ++i)
        {
        		FMLClientHandler.instance().getClient().effectRenderer.addEffect(var20);
        }
	}
}

Romejanic · January 25, 2015

Since you've put the @SideOnly annotation on the method, it is not included as part of the class on the server. It will crash if you try to call it. Try replacing your particle code with this:

public void onLivingUpdate()
    {
        super.onLivingUpdate();
        if(FMLCommonHandler.instance().getEffectiveSide() == Side.CLIENT) spawnParticle();
        
    	for(int l = 0; l <= 4; ++l) //TODO
        {
    		 if(worldObj.rand.nextFloat() < footprint_chance) {
    			 continue;
    		 }
    		
            if(Constants.DEF_GRASSSTEP == true){
            	int x = MathHelper.floor_double(this.posX + (l % 2 * 2 - 1) * 0.25F);
            	int y = MathHelper.floor_double(this.posY) - 1 ;
            	int z = MathHelper.floor_double(this.posZ + (l / 2 % 2 * 2 - 1) * 0.25F);
            	BlockPos pos = new BlockPos(x, y, z);
            	IBlockState state = this.worldObj.getBlockState(pos);
            	boolean isAnyDirt = state.getBlock() == Blocks.dirt;
            	boolean isRegularDirt = isAnyDirt && state.getValue(BlockDirt.VARIANT) == BlockDirt.DirtType.DIRT;
            
            	if (isAnyDirt && isRegularDirt){ //TODO
            		this.worldObj.setBlockState(pos, footprint.getDefaultState());
            	}
            }
        }    
        
    	if (isServer() && this.isWet && !this.isShaking && !this.hasPath() && this.onGround)
        {
            this.isShaking = true;
            this.timeWolfIsShaking = 0.0F;
            this.prevTimeWolfIsShaking = 0.0F;
            this.worldObj.setEntityState(this, (byte);
        }

        if (isServer() && this.getAttackTarget() == null && this.isAngry())
        {
            this.setAngry(false);
        }
        
        if(Constants.DEF_HEALING == true && !this.isChild() && this.getHealth() <=10 && this.isTamed())
        {
       		this.addPotionEffect(new PotionEffect(10, 200));
        }
        
        if (this.getAttackTarget() == null && isTamed() && 15 > 0) {
            List list1 = worldObj.getEntitiesWithinAABB(EntityCreeper.class, AxisAlignedBB.fromBounds(posX, posY, posZ, posX + 1.0D, posY + 1.0D, posZ + 1.0D).expand(sniffRange(), 4D, sniffRange()));

            if (!list1.isEmpty() && !isSitting() && this.getHealth() > 1 && !this.isChild()) {
                canSeeCreeper = true;
            }
            else {
                canSeeCreeper = false;
            }
        }
    }

Draco18s · January 25, 2015

	@Override
    public void onLivingUpdate() //this function is both client and server
    {
        super.onLivingUpdate();
        spawnParticle(); //this function is @SideOnly(Side.CLIENT)

coolAlias · January 25, 2015

You shouldn't use FMLCommonHandler to get the effective side when you have a World object available - if (worldObj.isRemote) is a much cheaper operation.

Whenever you have a method, class or field that operates on the client side only, you can only access it on the client side; i.e. any time you want to access it, nest your code in a side check:

if (worldObj.isRemote) { // yay, you're on the client
   spawnParticles(); // or other client-only code
}

NovaViper · January 25, 2015

Since you've put the @SideOnly annotation on the method, it is not included as part of the class on the server. It will crash if you try to call it. Try replacing your particle code with this:

public void onLivingUpdate()
    {
        super.onLivingUpdate();
        if(FMLCommonHandler.instance().getEffectiveSide() == Side.CLIENT) spawnParticle();
        
    	for(int l = 0; l <= 4; ++l) //TODO
        {
    		 if(worldObj.rand.nextFloat() < footprint_chance) {
    			 continue;
    		 }
    		
            if(Constants.DEF_GRASSSTEP == true){
            	int x = MathHelper.floor_double(this.posX + (l % 2 * 2 - 1) * 0.25F);
            	int y = MathHelper.floor_double(this.posY) - 1 ;
            	int z = MathHelper.floor_double(this.posZ + (l / 2 % 2 * 2 - 1) * 0.25F);
            	BlockPos pos = new BlockPos(x, y, z);
            	IBlockState state = this.worldObj.getBlockState(pos);
            	boolean isAnyDirt = state.getBlock() == Blocks.dirt;
            	boolean isRegularDirt = isAnyDirt && state.getValue(BlockDirt.VARIANT) == BlockDirt.DirtType.DIRT;
            
            	if (isAnyDirt && isRegularDirt){ //TODO
            		this.worldObj.setBlockState(pos, footprint.getDefaultState());
            	}
            }
        }    
        
    	if (isServer() && this.isWet && !this.isShaking && !this.hasPath() && this.onGround)
        {
            this.isShaking = true;
            this.timeWolfIsShaking = 0.0F;
            this.prevTimeWolfIsShaking = 0.0F;
            this.worldObj.setEntityState(this, (byte);
        }

        if (isServer() && this.getAttackTarget() == null && this.isAngry())
        {
            this.setAngry(false);
        }
        
        if(Constants.DEF_HEALING == true && !this.isChild() && this.getHealth() <=10 && this.isTamed())
        {
       		this.addPotionEffect(new PotionEffect(10, 200));
        }
        
        if (this.getAttackTarget() == null && isTamed() && 15 > 0) {
            List list1 = worldObj.getEntitiesWithinAABB(EntityCreeper.class, AxisAlignedBB.fromBounds(posX, posY, posZ, posX + 1.0D, posY + 1.0D, posZ + 1.0D).expand(sniffRange(), 4D, sniffRange()));

            if (!list1.isEmpty() && !isSitting() && this.getHealth() > 1 && !this.isChild()) {
                canSeeCreeper = true;
            }
            else {
                canSeeCreeper = false;
            }
        }
    }

I tried your method but it still doesn't work

NovaViper · January 25, 2015

None of these methods are working. Is it even possible to make custom particles spawn constantly as long as the entity lives?

NovaViper · January 25, 2015

When I move it over, it says the random is not public. Also it asks for to be static but with the random variables, it says it can't be static

NovaViper · January 25, 2015

Use getRNG() instead of rand.

Thanks!

coolAlias · January 25, 2015

@coolAlias: That alone will not work. It will still crash on a server.

A much better alternative to @SideOnly is @SidedProxy.

Are you sure? Because I've done just that in some of my mods and they play on servers just fine.

I understand that some things must be routed through the ClientProxy (the IMessageHandler getPlayer for example) because of the way classes load, but it seems such an inefficient solution.

Imagine that you have 20 entities and each one has a spawnParticles method, and within each the implementation is radically different. Do you create a special 'spawnParticles' method for each one in your ClientProxy? Do you create one method, but have chained if/elses checking if (entity instanceof EntityOne) spawnParticlesOne ? That would just be absurd.

Perhaps you could make an interface, ISpawnParticles, and cast your entity to that from the ClientProxy method which then calls the entity's class method, but it sounds like you are saying that would still crash since the actual implementation is within the entity class?

What a convoluted solution to what should be a simple problem, in my opinion. Granted, things don't always work the way we'd like, but this particular design decision (if it was a decision at all or just plain necessity) boggles my mind.

NovaViper · January 25, 2015

Hey now I have another problem releating to the client loading on the server side with a projectile entity. Here is it's class

public class EntityIceball extends EntityThrowable
{
    private static final String __OBFID = "CL_00001722";

    public EntityIceball(World p_i1773_1_)
    {
        super(p_i1773_1_);
    }

    public EntityIceball(World p_i1774_1_, EntityLivingBase p_i1774_2_)
    {
        super(p_i1774_1_, p_i1774_2_);
    }

    public EntityIceball(World p_i1775_1_, double p_i1775_2_, double p_i1775_4_, double p_i1775_6_)
    {
        super(p_i1775_1_, p_i1775_2_, p_i1775_4_, p_i1775_6_);
    }
    
    @Override
    public void onUpdate()
    {
    	EntityIceDustFX var20 = new EntityIceDustFX(this.worldObj, this.posX, this.posY, this.posZ, 0.0D, 0.0D, 0.0D);
    	FMLClientHandler.instance().getClient().effectRenderer.addEffect(var20);
        
        super.onUpdate();
    }

    /**
     * Called when this EntityThrowable hits a block or entity.
     */
    protected void onImpact(MovingObjectPosition movingObject)
    {   
        if (movingObject.entityHit != null)
        {
            byte b0 = 0;

            if (movingObject.entityHit instanceof EntityBlaze)
            {
                b0 = 3;
            }

            movingObject.entityHit.attackEntityFrom(DamageSource.causeThrownDamage(this, this.getThrower()), (float)b0);
        }else{
        	
            BlockPos blockpos =  movingObject.getBlockPos().offset(movingObject.sideHit);

        	if (this.worldObj.isAirBlock(blockpos))
        	{
        		this.worldObj.setBlockState(blockpos, Blocks.ice.getDefaultState());
        	}
        }

        for (int i = 0; i < 8; ++i)
        {
            this.worldObj.spawnParticle(EnumParticleTypes.SNOWBALL, this.posX, this.posY, this.posZ, 0.0D, 0.0D, 0.0D, new int[0]);
        }

        for (int i = 0; i < 8; ++i)
        {
            this.worldObj.spawnParticle(EnumParticleTypes.SNOWBALL, this.posX, this.posY, this.posZ, 0.0D, 0.0D, 0.0D);
        }

        if (!this.worldObj.isRemote)
        {   	
            	this.setDead();
        }
    }
}

NovaViper · January 25, 2015

Nvm, I fixed it and thanks everyone for your help!

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[1.8][SOLVED] Problems with Server once again..

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