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[SOLVED]Checking to see what entity is being hit by sunlight.

Posted December 18, 20168 yr

I want creepers and other monsters that don't normally burn at daylight to burn. I see the code in the EntityZombie and figured I could use this and rewrite it or to possible just add it into the existing creature code? Or would I better off just making a "custom" mob?

public void onLivingUpdate()

{

if (this.worldObj.isDaytime() && !this.worldObj.isRemote && !this.isChild() && this.func_190730_o())

{

float f = this.getBrightness(1.0F);

if (f > 0.5F && this.rand.nextFloat() * 30.0F < (f - 0.4F) * 2.0F && this.worldObj.canSeeSky(new BlockPos(this.posX, this.posY + (double)this.getEyeHeight(), this.posZ)))

{

boolean flag = true;

ItemStack itemstack = this.getItemStackFromSlot(EntityEquipmentSlot.HEAD);

if (!itemstack.func_190926_b())

{

if (itemstack.isItemStackDamageable())

{

itemstack.setItemDamage(itemstack.getItemDamage() + this.rand.nextInt(2));

if (itemstack.getItemDamage() >= itemstack.getMaxDamage())

{

this.renderBrokenItemStack(itemstack);

this.setItemStackToSlot(EntityEquipmentSlot.HEAD, ItemStack.field_190927_a);

}

flag = false;

}

if (flag)

{

this.setFire(;

}

super.onLivingUpdate();

}

Quote

December 18, 20168 yr

I want creepers and other monsters that don't normally burn at daylight to burn. I see the code in the EntityZombie and figured I could use this and rewrite it or to possible just add it into the existing creature code? Or would I better off just making a "custom" mob?

You can't just rewrite existing methods or add methods to existing classes. And creating a custom mob won't really solve your problem either.

What you should do is subscribe to the LivingUpdateEvent and use the zombie code to set other mobs on fire.

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable. If you think this is the case, JUST REPORT ME. Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

DO NOT PM ME WITH PROBLEMS. No help will be given.

Quote

December 18, 20168 yr

Author

Okay cool I almost have it all re-written and ready to go but I'm not sure what this line means? And what it wants.

super.onLivingUpdate();

Once I have that figured out I can test it out.

Quote

December 18, 20168 yr

Author

Well I'm going to head to bed. I have it working, but it keeps burning NPCs and Players. Is there a simple way of just checking what entity is what?

Quote

December 18, 20168 yr

instanceof

might work.

Relatively new to modding.

Currently developing:

https://github.com/LambdaXV/DynamicGenerators

Quote

December 18, 20168 yr

Okay cool I almost have it all re-written and ready to go but I'm not sure what this line means? And what it wants.
super.onLivingUpdate();
Once I have that figured out I can test it out.

Ignore it. You aren't writing a method override in a subclass, so you don't need it.

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

DO NOT PM ME WITH PROBLEMS. No help will be given.

Quote

December 19, 20168 yr

Author

Cool, it all seems to work when I run it in debug mode. As soon as I jar it and put it into a live game it crashes when the world loads.

ava.lang.NoSuchMethodError: net.minecraft.client.Minecraft.getMinecraft()Lnet/minecraft/client/Minecraft;
at com.example.examplemod.burningmobs.BurnMobs(burningmobs.java:39)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_8_burningmobs_BurnMobs_LivingUpdateEvent.invoke(.dynamic)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:185)
at net.minecraftforge.common.ForgeHooks.onLivingUpdate(ForgeHooks.java:524)
at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:2000)
at net.minecraft.entity.player.EntityPlayer.func_70071_h_(EntityPlayer.java:232)
at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:303)
at net.minecraft.network.NetHandlerPlayServer.func_73660_a(NetHandlerPlayServer.java:164)
at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher$1.func_73660_a(NetworkDispatcher.java:215)
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:287)
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:180)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:743)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:624)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:149)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:482)
at java.lang.Thread.run(Thread.java:745)

This is line 39 (Along with the old call I had in there, that gave me the same error)

World world = Minecraft.getMinecraft().theWorld; //entity.getEntityWorld();

Why would it say the method doesn't exist? I'm sure it's probably some little nuance I'm doing wrong, but why would it work on the debug server too? I've removed all other mods too and it still crashes.

-Thank you so much for all of your help so far.

Quote

December 19, 20168 yr

Cool, it all seems to work when I run it in debug mode. As soon as I jar it and put it into a live game it crashes when the world loads.

ava.lang.NoSuchMethodError: net.minecraft.client.Minecraft.getMinecraft()Lnet/minecraft/client/Minecraft;
at com.example.examplemod.burningmobs.BurnMobs(burningmobs.java:39)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_8_burningmobs_BurnMobs_LivingUpdateEvent.invoke(.dynamic)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:185)
at net.minecraftforge.common.ForgeHooks.onLivingUpdate(ForgeHooks.java:524)
at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:2000)
at net.minecraft.entity.player.EntityPlayer.func_70071_h_(EntityPlayer.java:232)
at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:303)
at net.minecraft.network.NetHandlerPlayServer.func_73660_a(NetHandlerPlayServer.java:164)
at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher$1.func_73660_a(NetworkDispatcher.java:215)
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:287)
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:180)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:743)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:624)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:149)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:482)
at java.lang.Thread.run(Thread.java:745)

This is line 39 (Along with the old call I had in there, that gave me the same error)

World world = Minecraft.getMinecraft().theWorld; //entity.getEntityWorld();

-Thank you so much for all of your help so far.

Why are you using Minecraft.getMinecraft()? Where are you using it?

VANILLA MINECRAFT CLASSES ARE THE BEST RESOURCES WHEN MODDING

I will be posting 1.15.2 modding tutorials on this channel. If you want to be notified of it do the normal YouTube stuff like subscribing, ect.

Forge and vanilla BlockState generator.

Quote

December 19, 20168 yr

Author

I was just poking around and trying different things. I originally used

entity.getEntityWorld

Here is the full method.

       public void BurnMobs(LivingEvent.LivingUpdateEvent e) {
            Entity entity = e.getEntity();
            World world = Minecraft.getMinecraft().theWorld; //entity.getEntityWorld();
            Random rand = new Random();

            if (world.isDaytime() && !world.isRemote && !(entity instanceof EntityPlayer) && !(entity instanceof EntityAnimal)
                    && !(entity instanceof EntityVillager) ) {
                float f = getBrightness(1.0F, world, entity);

                if (f > 0.5F && rand.nextFloat() * 30.0F < (f - 0.4F) * 2.0F && world.canSeeSky(new BlockPos(entity.posX, entity.posY + (double) entity.getEyeHeight(), entity.posZ))) {
                    boolean flag = true;


                    if (flag) {
                        entity.setFire(;
                    }
                }
            }
        }

Quote

December 19, 20168 yr

Couple critiques

Instead of event.getEntity() use event.getEntityLiving() and use an EntityLivingBase field.
Go back to using entity.getEntityWorld()

VANILLA MINECRAFT CLASSES ARE THE BEST RESOURCES WHEN MODDING

I will be posting 1.15.2 modding tutorials on this channel. If you want to be notified of it do the normal YouTube stuff like subscribing, ect.

Forge and vanilla BlockState generator.

Quote

December 19, 20168 yr

Author

Ok I changed the code as recommended. I'm still getting the error when it's live, but it still works in debug mode on the IDE. I put a breakpoint on the line it's complaining about and it seems to run the

entity.getEntityWorld()

fine.

However I did notice this when I looked at the crash report

Description: Ticking player

java.lang.NoSuchMethodError: net.minecraft.entity.EntityLivingBase.getEntityWorld()Lnet/minecraft/world/World;

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Server thread
Stacktrace:
at com.example.examplemod.burningmobs.BurnMobs(burningmobs.java:44)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_8_burningmobs_BurnMobs_LivingUpdateEvent.invoke(.dynamic)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:185)
at net.minecraftforge.common.ForgeHooks.onLivingUpdate(ForgeHooks.java:524)
at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:2000)
at net.minecraft.entity.player.EntityPlayer.func_70071_h_(EntityPlayer.java:232)

-- Player being ticked --
Details:
Entity Type: null (net.minecraft.entity.player.EntityPlayerMP)
Entity ID: 541
Entity Name: Mopop27
Entity's Exact location: 668.56, 4.00, -331.37
Entity's Block location: World: (668,4,-332), Chunk: (at 12,0,4 in 41,-21; contains blocks 656,0,-336 to 671,255,-321), Region: (1,-1; contains chunks 32,-32 to 63,-1, blocks 512,0,-512 to 1023,255,-1)
Entity's Momentum: 0.00, -0.08, 0.00
Entity's Passengers: []
Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:303)
at net.minecraft.network.NetHandlerPlayServer.func_73660_a(NetHandlerPlayServer.java:164)
at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher$1.func_73660_a(NetworkDispatcher.java:215)
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:287)

-- Ticking connection --
Details:
Connection: net.minecraft.network.NetworkManager@3d0aba21
Stacktrace:
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:180)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:743)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:624)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:149)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:482)
at java.lang.Thread.run(Thread.java:745)

Is the null EntityType causing this? What is different about the game when running it through the IDE?

Quote

December 19, 20168 yr

How are you compiling your mod?

VANILLA MINECRAFT CLASSES ARE THE BEST RESOURCES WHEN MODDING

I will be posting 1.15.2 modding tutorials on this channel. If you want to be notified of it do the normal YouTube stuff like subscribing, ect.

Forge and vanilla BlockState generator.

Quote

December 19, 20168 yr

Author

In intelliJ using the Gradle sidebar. build->clean->jar

Quote

December 19, 20168 yr

In intelliJ using the Gradle sidebar. build->clean->jar

You need to use the forge gradle building I believe. Never used intelliJ, but this should help.

https://mcforge.readthedocs.io/en/latest/gettingstarted/

At the very bottom.

VANILLA MINECRAFT CLASSES ARE THE BEST RESOURCES WHEN MODDING

I will be posting 1.15.2 modding tutorials on this channel. If you want to be notified of it do the normal YouTube stuff like subscribing, ect.

Forge and vanilla BlockState generator.

Quote

December 19, 20168 yr

Author

That did it! Thanks so much.

Quote

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[SOLVED]Checking to see what entity is being hit by sunlight.

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