#LinearVelocity being new anchor

215 messages · Page 1 of 1 (latest)

raw hawk
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I attatched a LinearVelocity to my HumanoidRootPart, its limited by MaxForce, but when i disable or increase MaxForce it just anchors the root part and i cannot move.

image.png
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they deprecate the old velocity system and add one thats buggy ;/ iv wacked my head for so long i cannot figure out why its not working

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increasing MaxForce = part becomes more slow motion until it cannot move (anchored)

spare elm
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Pretty much

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just go into a script

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actually ur doing it wrong

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actualyly

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go into a script

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and do

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yk what

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@raw hawk can u explain what ur trying to do

raw hawk
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i want to smoothly move apart two parts when they get close

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first part being the player

spare elm
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If you want to smoothly move two parts

raw hawk
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the velocity is set by a script

spare elm
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use tween esrvice

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use tween service not velocity

raw hawk
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i need physics

spare elm
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can i see the script

raw hawk
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its a mess

spare elm
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Show

raw hawk
# 
RS.PostSimulation:Connect(function(delta)
    -- Soft collision
    local collided = false
    
    for i, v in pairs(workspace:GetPartsInPart(collider)) do
        if v.CollisionGroup == collider.CollisionGroup then
            local dist = v.Position - collider.Position
            local dist_percent = dist.Magnitude/(radius + getCylinderRadius(v))
            
            linear_velocity.PlaneVelocity = Vector2.new(dist.X, dist.Z).Unit*(1-dist_percent)*-PUSH_POWER
            
            collided = true
        end
    end
    
    if not collided then
        linear_velocity.PlaneVelocity = Vector2.zero
    end

    task.wait(0)
end)```
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the script isnt the issue im sure of that

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its purely setting the velocity

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it works flawlessly. but the velocity is too slow as its capped by MaxForce

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which breaks everything when i increase it, maybe im doing this totally wrong

spare elm
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just du

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maxforce

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=

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math.huge

raw hawk
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then i cant move

spare elm
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Why

raw hawk
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at 10,000 i move really slowly, above that i cant move at all

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havent got the slightest clue 😄

spare elm
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then its probably to do with ur calculations

raw hawk
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if MaxForce = 10000 my character goes slow mo

spare elm
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linear_velocity.PlaneVelocity = Vector2.new(dist.X, dist.Z).Unit*(1-dist_percent)*-PUSH_POWER

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like this

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local dist = v.Position - collider.Position
local dist_percent = dist.Magnitude/(radius + getCylinderRadius(v))

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me personally

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i don tknow why you're getting the radius of a cylinder

raw hawk
# 
-- Locals
local function getCylinderRadius(part)
    -- Get average width then divide by 2 for radius
    return (part.Size.Y + part.Size.Z)/4
end```
spare elm
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oh is it for teh colllision

raw hawk
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yes

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i can yeet the script and just add a fixed velocity, same issue

spare elm
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why

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are you using

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plane velocity

raw hawk
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no big reason, i can switch to normal, its a top down game so i only move on XZ axis

spare elm
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oh

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what are u trying to script

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just explain

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ill try to replicate it

raw hawk
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have you played minecraft?

spare elm
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Yes

raw hawk
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when you collide into a player or mob, you get slowly moved apart

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thats what im attempting to recreate

spare elm
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Oh

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like knockback?

raw hawk
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yes

spare elm
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my game

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is about knockback

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and it works

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just fine

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just do like

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this

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wait

raw hawk
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its not instant velocity that deaccelerates, just when two bodys come close they slowly move apart

spare elm
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What

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wdym slowly move apart

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do u have a reference

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because the way you put it

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i would just use tween service

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if its slow movement

raw hawk
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this is it working, but its too slow

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if i try increase MaxForce then my character goes slo mo

spare elm
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Then

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its not the max force

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just like

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inrcaese the

raw hawk
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i can set the velocity to a million

spare elm
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velocity

raw hawk
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it moves at the same speed

spare elm
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VectorVelocity

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not maxfroce

raw hawk
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if i increase max force it goes faster,

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but its bugged at 10k

spare elm
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can't you just do it like this

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oh wait

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but you're trying to do it slowly

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well

raw hawk
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oh bugged at 100,000

spare elm
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try it anyway

# 
linearVelocity.VectorVelocity = humrp.CFrame.LookVector * 0.5
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u can play around with the 0.5

raw hawk
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what humrp

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oh nvm root

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this is the slo mo btw

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i set it to 100k and its slow

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set it to 50 and i move fast

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using default roblox controller

spare elm
raw hawk
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i need to go faster than 100,000 force

spare elm
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then increase vector velocity

raw hawk
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its like its capped

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i have a PUSH_POWER variable

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linear_velocity.PlaneVelocity = Vector2.new(dist.X, dist.Z).Unit*(1-dist_percent)*-PUSH_POWER

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its at the end

spare elm
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HOw big is push power

raw hawk
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its 1000

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but even if i make it bigger it doesnt go faster

spare elm
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why is it so high

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does plane velocity require higher values than vector velocirty

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because with vector velociy

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if i set it to like

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100

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its already a lot

raw hawk
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i switched back to vector

solemn vaultBOT
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studio** You are now Level 8! **studio

spare elm
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then why is it so high

raw hawk
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its like its capped

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doesnt matter if its 100 or 1000 its the same speed for some reason

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unless i increase MaxForce but then it bugs movement

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idk what im doing

spare elm
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let me try

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just to sak

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just ot ask

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why are you using cylinders

raw hawk
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just want that collider

spare elm
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here

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i made like a thing

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wait

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is this what you're trying tro achive

raw hawk
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yes

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can u make it repel faster?

spare elm
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ya

raw hawk
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what are u using to do that?

spare elm
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literally

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just scuffed code

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that i made

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beacuse im too lazy

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to do it the way ur doing

raw hawk
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show?

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iv also done it with part.Velocity

spare elm
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im using the shitty .Touched function

raw hawk
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but i dont want it to accelerate

spare elm
# 
local db = false

script.Parent.Touched:Connect(function(hit)
    if hit.Parent:FindFirstChild("Humanoid") then
        if db == false then
            db = true
            
            local attachment = Instance.new("Attachment")
            attachment.Parent = hit.Parent.HumanoidRootPart
            
            local linearVelocity = Instance.new("LinearVelocity")
            linearVelocity.Parent = attachment
            
            linearVelocity.Attachment0 = attachment
            linearVelocity.MaxForce = math.huge
            linearVelocity.VectorVelocity = hit.Parent.HumanoidRootPart.CFrame.LookVector * -4
            
            task.wait(1)
            db = false
        end
    end
end)```
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it doesn't accelearte

raw hawk
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waw

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im lost

spare elm
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of course the code will be even shorter for you

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because ua lerady have a linear velocir made

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i was too lazy to put it in starter characetr

raw hawk
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how T_T

spare elm
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this should look cleaner

raw hawk
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why does yours work with math.huge

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but my code is almost the same?

spare elm
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that intereferes

spare elm
raw hawk
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brand new baseplate

spare elm
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also

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your vector velocity

raw hawk
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only custom script lol

spare elm
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is 1000

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mine

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is -4

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i mean the one in the video is -2

raw hawk
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maybe i should explain this code?

linear_velocity.VectorVelocity = Vector3.new(dist.X, 0, dist.Z).Unit*(1-dist_percent)*-PUSH_POWER```
`Vector3.new(dist.X, 0, dist.Z).Unit` is the normalized direction

`(1-dist_percent)` is the percentage distance from the touching part center

`PUSH_POWER` is just a constant

it makes it so velocity is higher the closer you are to the center
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our code is almsot the same i just do a bit more logic

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so why is it different?

spare elm
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Let me see rq

raw hawk
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you parent the attachment>?

spare elm
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wdym

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whici one

raw hawk
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wouldnt change much tho dont think

# 
            local linearVelocity = Instance.new("LinearVelocity")
            linearVelocity.Parent = attachment```
ill try tho
spare elm
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No i mean

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u dont have to make a new instance

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i just did that beacuse im too lazy

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in my other game i already have the linear velocit created

raw hawk
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nah ik

spare elm
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because if u craeet a new one every time

raw hawk
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i mean the structure

spare elm
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its gonna be delayed and stuff

spare elm
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yeah

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i prefer to put linear velocity inside the attachment

raw hawk
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could it be my custom humanoid?

spare elm
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maybe

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I dont see how humanoids

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would come into play though

raw hawk
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well the issue is movement becomming slower as MaxForce increases

spare elm
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The thing is

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you're trying to change the speed depending on how close you are to the center

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while i'm just doing "as soon as you touch it you move away"

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so your calculations and stuff could be affecting

raw hawk
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i can make it a constant number same issue

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im just gonna use .velocity

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too much pain

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reason i used linearvelocity is i dont want it to accelerate, but act as its own velocity, not add velocity every frame'

spare elm
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so you're keepign the speed constant

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i thought u wanted it to be slower

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depending on how close

raw hawk
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yes

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shoulda just done this from the start

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other 1 is bugging because its only server side (i think) idk anymore

spare elm
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Nice

raw hawk
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thank you for your help, roblox is just wack sometimes