[1.19.2] How to spawn particle inside releaseUsing

[Feroov]

As the title says I got a custom ranged weapon, and I would like to spawn a particle once the item is been used lets say

 

I tried using

                    for(int i = 0; i < 2; ++i) {
                        level.addParticle(ParticleTypes.FLASH, 0d, 0d, 0d, 0d, 0d, 0d);
                    }

No luck, any ideas?

[warjort]

Where do you think those particles are spawning?

[Feroov]

  On 8/21/2022 at 12:35 PM, warjort said:

Where do you think those particles are spawning?

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Well no where I assume, even though I tweak the numbers still nothing is present

[Luis_ST]

Show more of your code.

[Feroov]

  On 8/21/2022 at 1:53 PM, Luis_ST said:

Show more of your code.

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This is what I have so far

@Override
    public void releaseUsing(ItemStack stack, Level level, LivingEntity livingEntity, int timeLeft)
    {
        if (livingEntity instanceof Player) {
            Player playerentity = (Player) livingEntity;
            if (stack.getDamageValue() < (stack.getMaxDamage() - 1))
            {
                playerentity.getCooldowns().addCooldown(this, 4);

                if (!level.isClientSide)
                {
                    NineMMBullet nineMMBullet = createArrow(level, stack, playerentity);
                    nineMMBullet.shootFromRotation(playerentity, playerentity.getXRot(), playerentity.getYRot(),
                            0.0F, 3.0F, 2.0F);

                    nineMMBullet.isNoGravity();
                    nineMMBullet.isNoPhysics();

                    stack.hurtAndBreak(1, livingEntity, p -> p.broadcastBreakEvent(livingEntity.getUsedItemHand()));
                    level.addFreshEntity(nineMMBullet);

                    level.playSound((Player) null, playerentity.getX(), playerentity.getY(), playerentity.getZ(),
                            ModSoundEvents.PISTOL.get(), SoundSource.PLAYERS, 1.0F, 1.0F);

                    if (!level.isClientSide)
                    {
                        final int id = GeckoLibUtil.guaranteeIDForStack(stack, (ServerLevel) level);
                        final PacketDistributor.PacketTarget target = PacketDistributor.TRACKING_ENTITY_AND_SELF
                                .with(() -> playerentity);
                        GeckoLibNetwork.syncAnimation(target, this, id, STATE);
                    }
                }
            }
        }
    }

 

[Luis_ST]

In the code you never spawn particles. But I suspect you are calling Level#addParticle server side, which will perform no action since there is no server side implementation.
If you want to call the particle spawn code server side you need to use ServerLevel#sendParticles.

[Feroov]

  On 8/21/2022 at 2:53 PM, Luis_ST said:

In the code you never spawn particles. But I suspect you are calling Level#addParticle server side, which will perform no action since there is no server side implementation.
If you want to call the particle spawn code server side you need to use ServerLevel#sendParticles.

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Am I calling it correctly inside the releaseUsing method?
 

serverLevel.sendParticles(ParticleTypes.FLASH, x, y, z, 2, 0.2D, 0.2D, 0.2D, 0.0D);

because now the gun wont shoot pretty much

[Luis_ST]

Please post the full code (at least the method), just a piece of code is not helpful.

[Feroov]

I'll send in the full class it might be more useful

 

https://pastebin.com/RuREdFYj

[Luis_ST]

You now check first if you're on server, then check if your on client (which will never be true since your on already on server).
Inside the client only block you call the Particle code from server and client, that's not how it's work.

In addition you create a Field in your Item class which is never be initialized, remove these Field your Item is a singleton the Data will be shared between all Items.

Your code is server side so you only need to call ServerLevel#sendParticles.
You can get the ServerLevel from casting the Level which is given in the method, after a server side check.

[Feroov]

  On 8/21/2022 at 4:14 PM, Luis_ST said:

You now check first if you're on server, then check if your on client (which will never be true since your on already on server).
Inside the client only block you call the Particle code from server and client, that's not how it's work.

In addition you create a Field in your Item class which is never be initialized, remove these Field your Item is a singleton the Data will be shared between all Items.

Your code is server side so you only need to call ServerLevel#sendParticles.
You can get the ServerLevel from casting the Level which is given in the method, after a server side check.

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Yes I got it to work now with this:

 

                    double x = playerentity.getX();
                    double y = playerentity.getY();
                    double z = playerentity.getZ();


                    if (level instanceof ServerLevel _level)
                    {
                        _level.sendParticles(ParticleTypes.FLAME, x, y + 1.5, z + 0.5, 1, 1, 0, 0, 0);
                        _level.sendParticles(ParticleTypes.SMOKE, x, y + 1.5, z +0.5, 1, 1, 0, 0, 0);
                    }

 

The only issue is the particles spawn on the specific location/area, so if I shoot from X cordinate I see the particles if I turn around and shoot well they spawn behind me then, now heres my question, how can I make it so that the particles only spawn/appear in front of the player no matter what

[warjort]

Entity.getViewVector() tells you the direction it is looking.

Entity.getPosition() or Entity.getEyePosition() tells you where they are.

Then its just vector arithmetic.

[Feroov]

  On 8/21/2022 at 9:10 PM, warjort said:

Entity.getViewVector() tells you the direction it is looking.

Entity.getPosition() or Entity.getEyePosition() tells you where they are.

Then its just vector arithmetic.

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Could you please guide/show me the way to do it, I'd really appreciate it, still trying to grasp the logic

[warjort]

  On 8/21/2022 at 9:35 PM, Feroov said:

 

Could you please guide/show me the way to do it, I'd really appreciate it, still trying to grasp the logic

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No you aren't, you spent maximum 25 minutes thinking about/researching it. I would guess it was probably a lot less. 🙂 

 

Anyway, look at something like Panda.afterSneeze()

It uses the body rotation (instead of the view rotation) fields, which might be what you actually want?

Otherwise you will have to use the view rotation fields from the entity instead.

Edited August 21, 2022 by warjort

[Feroov]

  On 8/21/2022 at 10:08 PM, warjort said:

No you aren't, you spent maximum 25 minutes thinking about/researching it. I would guess it was probably a lot less. 🙂 

 

Anyway, look at something like Panda.afterSneeze()

It uses the body rotation (instead of the view rotation) fields, which might be what you actually want?

Otherwise you will have to use the view rotation fields from the entity instead.

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It is what I actually needed THANK YOU :D, had to tweak some math arithmetics and all is good now, have a great rest of your day/night cheers