I’m currently using raycasting by frame in a fps gun system, and I have in place bullet drop. I was wondering how to calculate the compensation for said drop, which uses the default gravitational constant?
In other words, what calculation would one do for a phantom-forces-balistics-tracker-esque system that lets the player know where to aim to hit a target on a bullet with gravity?
This is a quite complex process. I’d suggest using resources that already provide such services like accurate bullet drop FastCast because the API is rather simple and is documented well.
PS: You can calculate the bullet drop compensation using a formula like this:
local targetDist = ... -- The target's distance from the player
local velocity = ... -- The velocity of the bullet
local function getHeight()
return (targetDist / velocity) * workspace.Gravity
end
This should technically work, if your bullet drop system is similar to FastCast’s
I’m assuming that fastcast also calculates drop via the gravitational constant, so this should be the same.
so this would work if i aimed at player.Head.Position + Vector3.new(0,getheight(),0) ?
player.Head.p + Vector3.new(0, getHeight(), 0)
^^ This should do the trick assuming you calculate distance using (hrp1.p - hrp2.p).Magnitude
Also note that it might be off by a small amount of studs, due to the heads offset from the hrp.
wait arent you doubling the X and Z values by adding it again?
You’re right lol, I forgot that we are already adding it to the heads position. Thanks for pointing it out.
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