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Line of Particles


HighFox
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Sure, just spawn the particles along the line between the two points

 

i.e.

if your two points are [x1,y1,z1] and [x2,y2,z3], and you want them evenly spaced at 10% intervals, then spawn at

[x1*0.9 + x2*0.1, y1*0.9 + y2 * 0.1, z1 * 0.9 + z2 * 0.1]

and

[x1*0.8 + x2*0.2, y1*0.8 + y2 * 0.2, z1 * 0.8 + z2 * 0.2]

etc

 

This tutorial project gives a working example of how to spawn custom particles; there are a few tricks about setting the initial velocity correctly and removing random variation from the initial position.

https://github.com/TheGreyGhost/MinecraftByExample/tree/master/src/main/java/minecraftbyexample/mbe50_particle

 

-TGG

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