Synchronize raycast speed with velocity?

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1

I’m making an FPS game and I made bullets and raycast system. Raycast detects if something is hit and deals damage to it, while bullet is just there for the looks.

-- this is how the bullet is moving
local velocity = Instance.new("BodyVelocity")
velocity.Velocity = bullet.CFrame.LookVector * bulletSpeed
velocity.MaxForce = Vector3.new(math.huge, math.huge, math.huge)
velocity.Parent = bullet

-- this is how the raycast is created
local ray = workspace:Raycast(startCFrame, startCFrame.LookVector * bulletSpeed, raycastParams)

(this is not the exact code, it’s just an example)

My question is if it is possible to synchronize the bullet speed and raycast speed so they hit the target at the same time?

2

Nope, until the ray is finished you cannot do anything with the bullet, although you could try moving the fake bullet towards Mouse.Origin

3

You could do the Raycast either way and check it only after the bullet hits something or reaches a certain point. That is if you want a delay ofc

4

Good idea, could i do something like this:

repeat wait() until (bullet.Position - ray.Position).magnitude < 2
5

Why towards Mouse.Origin? Could you explain me a little bit more?

6

I haven’t worked with raycasts much, it was just a suggestion really. You should play around with it. Maybe if the bullet speed is fast enough you could just do the raycast immediately and check it, since it won’t matter whether the bullet actually hits it or not because of the moving delay

7

Unfortunately every bullet has a delay but thanks anyways. It looks weird if the damage is dealt before the bullet actually hits it

8

I actually managed to make it work by creating the raycast to instantly hit the target and then waiting for how long it takes a bullet to get to the target. I did that by using a simple formula:

velocity = distance / time => time = distance / velocity

local ray = workspace:Raycast(startCFrame, startCFrame.LookVector * bulletSpeed, raycastParams)

if ray then
	wait(ray.Distance / bulletSpeed)
	bullet:Destroy()
end
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9

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