How to make a projectile go to a given Max Height

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#1

Hello, I am making a gun system and I have a specific location for the bullet to have a Max Height.
I am confused on how to get there with physics

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I’ve tried various methods and prefer to manipulate the bullet part with “. Assembly” than using constraints since I haven’t found them useful due to their glitches.
I also tried using fast cast, but I rather have this for the individual bullets rather than a whole gun.

Thank you so much for your time !

#2

What does a max height mean in this case? If it reaches that height it disappears? Or do you want to set the velocity so it physically cannot go higher than some height?

#3

I want to set the velocity, so it physically reacher the max height and cannot go higher, thus falls down

#4

If you shoot straight up the height will be based on this kinematic equation:
x = vt + 1/2 a t^2
where v is the initial upwards velocity and a is gravity’s acceleration (set in Workspace, will be negative). The max height will be x. You can rearrange this to find the max velocity you can allow for a given height.

#5

I would do this in two different ways:

You could simply clamp the bullet position

local rs = game:GetService(“RunService”)

local Bullet = script.Parent
local MaxHeight = 1000

rs.RenderStepped:Connect(function()

      Bullet.Position = Vector3.new(Bullet.Position.X, math.clamp(Bullet.Position.Y, 0, MaxHeight), Bullet.Position.Z)

end)

or you could add a LinearForce to the bullet instance, increasing its vertical force as the bullet gets near the maximum height