#BodyVelocity being buggy at low fps

1 messages · Page 1 of 1 (latest)

lean flicker
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Even after setting the MaxForce to 50K, it still is slightly flinging (as shown in the second video) and can sometimes make you frog sideways (as shown in the first video). This is due to the dash being on the client, but I don't know how to fix this other than moving it to the server, which would make the game unplayable on higher ping

# 
local Debris = game:GetService("Debris")
local RunService = game:GetService("RunService")
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local LocalActions = {}
local DashDirection = require(script.DashDirection)
local Euler = math.exp(1)
local function CheckStatus(Player : Player, States : {}) : Model
    local Character = Player.Character
    if not Character then return end

    local Humanoid = Character:FindFirstChild("Humanoid")
    if not Humanoid or Humanoid.Health <= 0 then return end
    
    local CurrentState = States.States.CurrentState
    if not CurrentState or CurrentState == "Stunned" then return end
    
    return Character
end

local function GetMass(Character : Model) : number?
    local Mass = 0
    
    for i, v in Character:GetChildren() do
        if not v:IsA("Part") then continue end
        Mass += v:GetMass()
    end
    
    return Mass
end
# 
local function CreateBodyVelocity(HumanoidRootPart : Part)
    local BodyVelocity = Instance.new("BodyVelocity")
    BodyVelocity.Parent = HumanoidRootPart
    BodyVelocity.P = 100000
    BodyVelocity.MaxForce = Vector3.new(50000, 0, 50000)
    
    local DebrisTime = 0.4
    
    Debris:AddItem(BodyVelocity, DebrisTime)
    
    return BodyVelocity, DebrisTime
end

function LocalActions.Dash(Player : Model, GetKeysPressed : {any}, States : {any})
    local Character = CheckStatus(Player, States)
    if not Character then return end
    
    DashDirection.ReturnDirection(GetKeysPressed)
    
    local HumanoidRootPart = Character:FindFirstChild("HumanoidRootPart")
    if not HumanoidRootPart then return end
    
    local CurrentVector, Value = DashDirection.ReturnDirection(GetKeysPressed)
    
    local Mass = GetMass(Character) * 6
    local BodyVelocity, DebrisTime = CreateBodyVelocity(HumanoidRootPart)
    
    local Time = 0
    local Connection
    
    Connection = RunService.Heartbeat:Connect(function(DeltaTime)
        Time += DeltaTime
        if Time >= DebrisTime then Connection:Disconnect() end
        local Steepness = 0.5
        local Decay = (1 + Steepness ^ 2) - (Steepness + Time) ^ 2
        
        BodyVelocity.Velocity = HumanoidRootPart.CFrame[CurrentVector] * Mass * Decay * Value
    end)
end
return table.freeze(LocalActions)
#

(note that this is 60 fps which isnt that low)

brazen orchid
#

@lean flicker what is your ultimate goal?

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To like move straight?

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Without it being “buggy”

lean flicker
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i havent really worked with body velocity much as ive been more on the math side of things

brazen orchid
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Yeah

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Have you tried tweeting

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Tweening*

lean flicker
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tweening?

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nope

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do you think it'd be better?

brazen orchid
#

I think so 100%

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And make it so if the player touches something to stop the tween

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That’s what I’d try

lean flicker
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is a dash similar to most combat systems

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and if it were to just stop instantly after hititng something

brazen orchid
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Oh ok

lean flicker
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it'd feel weird

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yeah

brazen orchid
#

Yeah

lean flicker
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maybe raycasting and slowing the dash down would work?

brazen orchid
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I think in most games they just ignore that lol

lean flicker
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if it was close enough to an object

brazen orchid
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That’d be very expensive

lean flicker
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i guess

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but i mean its just one ray

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its calculated on the client

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so it wouldnt really strain the server

brazen orchid
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Yeah but one ray times how many people are in the server

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Yeah I don’t see why not then

lean flicker
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alr then

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ill try that

brazen orchid
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Perfect lmk if anything ping me

lean flicker
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alr

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thanks