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how to use a model as a tool to fling people? (im new to lua)

Asked by 13 days ago

How can i use a model as a tool for the player that when click LMB it triggers a animation and flings the character a certain distance if made contact with?

0
hmm.. Can you still use platform stand to ragdoll a character and then apply a force to fling the character? AZDev 590 — 13d
0
That might be easier than abusing collision physics. AZDev 590 — 13d
0
Could you define platform standing? coolman2006xterra 5 — 13d
0
have you played slap battles before? if yes then I kind of wanna mimic that that when clicked it if it makes contact with another player they get flinged coolman2006xterra 5 — 13d

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Answered by 12 days ago
Edited 12 days ago

Hello,

Read Time ~ 15 mins

The topic of using a Tool to fling some one by RayCasting might be complicated but I will try my best to explain.

Creating the Tool

Create A Tool in starter Pack and name it whatever you want, Maybe "Fling Tool". Insert a Part in the Tool and Name it "Handle" or else it wont work. if you have more than 1 part in your tool, you may have to weld the extra parts to the "Handle". Under "Handle" Create a folder. Name the Folder "Code" or something else to keep your Explorer organized. Add the Instances below under the folder,

  • Script

  • Local Script

  • RemoteEvent

Local Script

If You have followed the steps above correctly, you can reference to the parts in the tool perfectly, Define your "Tool" Variable

Code Example, Defining Tool

local Tool = script.Parent.Parent.Parent <---

Next, Define the Remote Event Variable

Code Example, Defining RemoteEvent

local Tool = script.Parent.Parent.Parent

local Event = script.Parent:WaitForChild("RemoteEvent") <---

After that, Define a Variable for Mouse

Code Example, Defining Mouse

local Tool = script.Parent.Parent.Parent

local Event = script.Parent:WaitForChild("RemoteEvent")

local Mouse = game.Players.LocalPlayer:GetMouse() <---

Then, We will connect function to a Tool Activated Event

Code Example, Connect event to Tool.Activated

local Tool = script.Parent.Parent.Parent

local Event = script.Parent:WaitForChild("RemoteEvent")

local Mouse = game.Players.LocalPlayer:GetMouse()

Tool.Activated:Connect(function() <---

end) <---

Now we will Define the Mouse Hit Position in the 3D world, this will be for the Ray Casting for later

Code Example, Reference to Mouse.Hit.Position

local Tool = script.Parent.Parent.Parent

local Event = script.Parent:WaitForChild("RemoteEvent")

local Mouse = game.Players.LocalPlayer:GetMouse()

Tool.Activated:Connect(function()
    local MouseVector = Mouse.Hit.Position <---
end)

After All, Fire the Remote Event to server with a MousePosition Parameter

Code Example, Firing Remote Event to Server

local Tool = script.Parent.Parent.Parent

local Event = script.Parent:WaitForChild("RemoteEvent")

local Mouse = game.Players.LocalPlayer:GetMouse()

Tool.Activated:Connect(function()
    local MouseVector = Mouse.Hit.Position

    Event:FireServer(MouseVector) <---
end)

Congrats, Your Local/Client script is complete! Next will be the Server-Script

Script

First Of All, Define your Remote Event

Code Example, Define Remote-Event

local Event = script.Parent.RemoteEvent <---

Define the Tool for RayCast.

Code Example, Defining Tool

local Event = script.Parent.RemoteEvent

local Tool = script.Parent.Parent.Parent <---

Then Connect function to a OnServerEvent Event and define the two Parameters of Player, and MouseVector

Code Example, Connecting Function to OnServerEvent

local Event = script.Parent.RemoteEvent

local Tool = script.Parent.Parent.Parent

Event.OnServerEvent:Connect(function(Player, MousePosition) <---

end) <---

Define RayCast Params which will be our third Parameter for the RayCast. Make RayCast Parameters in which we will be blacklisting some parts Including Players Character.

Code Example, RayCast Parameters

local Event = script.Parent.RemoteEvent

local Tool = script.Parent.Parent.Parent

Event.OnServerEvent:Connect(function(Player, MousePosition)

    local RayParams = RaycastParams.new() <---
    RayParams.FilterDescendantsInstances = {Player.Character} <---
    RayParams.FilterType = Enum.RaycastFilterType.Blacklist <---

end)

Now we will Define the Origin Position in Vector3, which will be the handle position.

Code Example, Defining Handle Position

local Event = script.Parent.RemoteEvent

local Tool = script.Parent.Parent.Parent

Event.OnServerEvent:Connect(function(Player, MousePosition)

    local RayParams = RaycastParams.new()
    RayParams.FilterDescendantsInstances = {Player.Character}
    RayParams.FilterType = Enum.RaycastFilterType.Blacklist

    local Origin = Tool.Handle.Position <---

end)

We will now Extend the Ray with some math, Setting limits is our best option.

Code Example, Extending Ray

local Event = script.Parent.RemoteEvent

local Tool = script.Parent.Parent.Parent

local Limit = 1000 <---

Event.OnServerEvent:Connect(function(Player, MousePosition)

    local RayParams = RaycastParams.new()
    RayParams.FilterDescendantsInstances = {Player.Character}
    RayParams.FilterType = Enum.RaycastFilterType.Blacklist

    local Origin = Tool.Handle.Position

    local LimitToRay = Origin + (MousePosition - Origin).Unit * Limit <---

end)

Casting A Ray

Ray will have 3 parameters, First RayOrigin, Second RayDirection, Third RayParameters

Code Example, Casting A Ray in workspace

local Event = script.Parent.RemoteEvent

local Tool = script.Parent.Parent.Parent

local Limit = 1000

Event.OnServerEvent:Connect(function(Player, MousePosition)

    local RayParams = RaycastParams.new()
    RayParams.FilterDescendantsInstances = {Player.Character}
    RayParams.FilterType = Enum.RaycastFilterType.Blacklist

    local Origin = Tool.Handle.Position

    local LimitToRay = Origin + (MousePosition - Origin).Unit * Limit

    local RayCast = workspace:Raycast(Origin, LimitToRay, RayParams) <---

end)

To get Player from the Ray first we will check if the Ray hit Something. if there is a Humanoid in Hit.Parent then we will Disable Humanoid.PlatformStand

Code Example, Getting Humanoid

local Event = script.Parent.RemoteEvent

local Tool = script.Parent.Parent.Parent

local Limit = 1000

Event.OnServerEvent:Connect(function(Player, MousePosition)

    local RayParams = RaycastParams.new()
    RayParams.FilterDescendantsInstances = {Player.Character}
    RayParams.FilterType = Enum.RaycastFilterType.Blacklist

    local Origin = Tool.Handle.Position

    local LimitToRay = Origin + (MousePosition - Origin).Unit * Limit

    local RayCast = workspace:Raycast(Origin, LimitToRay, RayParams)

    if RayCast then <---
        if RayCast.Instance.Parent:FindFirstChild("Humanoid") then <---
            RayCast.Instance.Parent:FindFirstChild("Humanoid").PlatformStand = true <---
        end <---
    end <---
end) <---

After Enabled the Platform stand we will apply a force, the force will be random to get more fun from it

Code Example, Flinging Player

local Event = script.Parent.RemoteEvent

local Tool = script.Parent.Parent.Parent

local Limit = 1000

Event.OnServerEvent:Connect(function(Player, MousePosition)
    local RayParams = RaycastParams.new()
    RayParams.FilterDescendantsInstances = {Player.Character}
    RayParams.FilterType = Enum.RaycastFilterType.Blacklist

    local Origin = Tool.Handle.Position

    local LimitToRay = Origin + (MousePosition - Origin).Unit * Limit

    local RayCast = workspace:Raycast(Origin, LimitToRay, RayParams)

    if RayCast then
        if RayCast.Instance.Parent:FindFirstChild("Humanoid") then
            RayCast.Instance.Parent:FindFirstChild("Humanoid").PlatformStand = true
            RayCast.Instance.Parent.PrimaryPart.AssemblyAngularVelocity = Vector3.new(math.random(99,999),math.random(99,999),math.random(99,999)) <--- Fling
        end
    end
end)

Final Scripts

local Script

local Tool = script.Parent.Parent.Parent -- Tool
local Event = script.Parent:WaitForChild("RemoteEvent") -- Wait for Remote
local Mouse = game.Players.LocalPlayer:GetMouse() -- Player Mouse

Tool.Activated:Connect(function()
    local MouseVector = Mouse.Hit.Position
    Event:FireServer(MouseVector) -- Fire Server with Mouse Position
end)

Server-Script

local Event = script.Parent.RemoteEvent

local Tool = script.Parent.Parent.Parent

local Limit = 1000

Event.OnServerEvent:Connect(function(Player, MousePosition)
    local RayParams = RaycastParams.new() -- Filtering Character
    RayParams.FilterDescendantsInstances = {Player.Character}
    RayParams.FilterType = Enum.RaycastFilterType.Blacklist

    local Origin = Tool.Handle.Position -- Tool Position

    local LimitToRay = Origin + (MousePosition - Origin).Unit * Limit -- Applies Limit

    local RayCast = workspace:Raycast(Origin, LimitToRay, RayParams) -- Fire Ray

    if RayCast then
        if RayCast.Instance.Parent:FindFirstChild("Humanoid") then
            RayCast.Instance.Parent:FindFirstChild("Humanoid").PlatformStand = true
            RayCast.Instance.Parent.PrimaryPart.AssemblyAngularVelocity = Vector3.new(math.random(99,999),math.random(99,999),math.random(99,999)) -- Apply force
        end
    end
end)

More On RayCasting:

Intro To RayCasting - By Roblox

Final Working Model:

Final Model - By Me

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