The last times this has been requested were so long ago that all the threads are dead. None of those threads, sadly, produced any solutions that are still applicable in modern versions, all of them seeming to have petered out in version 1.7 or so. Very saddening.
Generally it seemed to be rather well received but tended to fade away due to lack of interest. It is time to reignite interest.
There needs to be a standalone clientside-only mod that can project the predicted path (the trajectory) of thrown projectiles or arrows in minecraft, Perhaps leveraging the same graphical system that is used to draw the fishing line when fishing. Being able to see where an ender pearl will land when you chuck it would be instrumental.
And there HAVE been mods that did this in the past, so it absolutely is feasible. They just all... died.
Clearly I am not the only one who craves such a mod. Given that I lack the skills or experience to just do it myself, my desire to have this made available for our community must be represented in other ways.
Compensation available for enterprising coders. I will appreciate if you would give me a quote of your estimated expense in $USD to develop such a mod, in either direct message or posted in thread. I understand it may not be reasonable to expect to withhold payment until delivery, so we can negotiate a down payment or an up-front percentage. Likely method is through paypal unless you have a patreon.
The reason why the previous mods like this died out is because most players who used them ended up banned from PVP servers. I'm not saying you can't being this back, I'm just warning you to not use it in multiplayer.
Rollback Post to RevisionRollBack
My output of snark depends on your output of stupidity.
It is not exactly what you wanted but your idea inspired me to create a mod that allows you to predict the trajectory thanks to a potion. That way, it feels less like a cheat and is something you actually have to work for.