Hi, I'm trying to spawn in the same particle effect a splash potion produces.

 

I've tried to do this by using an EntityAreaEffectCloud and tuning the radius, duration and RadiusPerTick parameters. However, as the name suggests, this always produces a 'cloud' and not a 'splash' type effect.

 

How can I simply instantiate a splash potion particle effect into a world? It does not need to have any potion effects etc. Merely the particles are what I'm interested in.

You can simply use World#playEvent(int type, BlockPos pos, int data) to spawn a splash potion effect, where type is the event to play, pos is the position, and data is the case-specific data.

 

In this case, you want either type 2002 or 2007 to play the splash effect. 2002 has the particles of a normal potion, while 2007 has the particles from an instant-effect potion (instant damage, for example). With this event, the data corresponds to the color of the potion particles.

Thanks! That was exactly what I was looking for.