I want to make the player able to jump through platforms

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#1

I want to make the player able to jump through the bottom of a platform, and stand on the top. But, i really have no idea how to make this work. Any ideas?
Video of what I mean:


This is a clip from a platform fighter

#2

I guess raycasts, you could send one below and above the player, lets say a platform has a tag “Platform” and the below ray hits it then the canCollide will turn on however if the upper ray hits then its canCollide turns off

#3

I don’t understand what you really mean, can you provide more details and maybe some imagery?

#4

I can Provide sample code if that’s what you want?

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#5

Yes that would be good too any example

#6

i can provide a video from a game im trying to emulate if you’d like

#7

Sorry for the wait, I only realized half through making it that I had it backwards :stuck_out_tongue:

task.wait(.5)

local run = game:GetService("RunService")

local plr = game.Players.LocalPlayer
local char = plr.Character or plr.CharacterAdded:Wait()

local raycastLimb = char:WaitForChild("HumanoidRootPart")

local PlatformTag = "Platform"

local raycastLength = 7

local params = RaycastParams.new()
params.FilterType = Enum.RaycastFilterType.Exclude
params.FilterDescendantsInstances = {char}

local function renderStepped(dt)
	local upRaycast = workspace:Raycast(raycastLimb.Position, raycastLimb.CFrame.UpVector * raycastLength, params)
	local downRaycast = workspace:Raycast(raycastLimb.Position, -raycastLimb.CFrame.UpVector * raycastLength, params)
	
	if upRaycast then
		if upRaycast.Instance:HasTag(PlatformTag) then
			if upRaycast.Instance.CanCollide then
				upRaycast.Instance.CanCollide = false
			end
		end
	end
	
	if downRaycast then
		if downRaycast.Instance:HasTag(PlatformTag) then
			if not downRaycast.Instance.CanCollide then
				downRaycast.Instance.CanCollide = true
			end
		end
	end
end


run.RenderStepped:Connect(renderStepped)

usually I would do something more indepth like making sure that it isn’t a child of a model and if it is then loop through all the model stuff but I feel for an example this works – note: the part you want to go through needs to have the same tag as the “PlatformTag” variable

script goes in starterCharacterScripts and its local.

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#8

Thank you, it works perfectly.

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#9

I would like to say as this is just an example I wouldn’t use it as a full on thing/fix for a game I would more or less use it as a stepping stone, as I stated I would personally check if the part is a child to a model and what not. of course if your only going to have simple parts this would certainly work but once you add a model with multiple parts the player might get snagged on them or so on. just a warning, this will definitely work for a quick fix for testing though, good luck :+1:

#10

Sorry for bringing up a solved topic but for anyone wanting something like this but with dropthrough with a key this should work

task.wait(.5)

local run = game:GetService("RunService")

local plr = game.Players.LocalPlayer
local char = plr.Character or plr.CharacterAdded:Wait()
local hum = char:WaitForChild("Humanoid")

local uis = game:GetService("UserInputService")

local raycastLimb = char:WaitForChild("HumanoidRootPart")

local PlatformTag = "Platform"

local raycastLength = 7

local dropDownKey = Enum.KeyCode.F

local dropKeyDown = false

local params = RaycastParams.new()
params.FilterType = Enum.RaycastFilterType.Exclude
params.FilterDescendantsInstances = {char}

local function down(setCollide)
	local downRaycast = workspace:Raycast(raycastLimb.Position, -raycastLimb.CFrame.UpVector * raycastLength, params)
	
	if downRaycast then
		if downRaycast.Instance:HasTag(PlatformTag) then
			if downRaycast.Instance.CanCollide ~= setCollide then
				downRaycast.Instance.CanCollide = setCollide
			end
		end
	end
end

local function up()
	local upRaycast = workspace:Raycast(raycastLimb.Position, raycastLimb.CFrame.UpVector * raycastLength, params)
	
	if upRaycast then
		if upRaycast.Instance:HasTag(PlatformTag) then
			if upRaycast.Instance.CanCollide then
				upRaycast.Instance.CanCollide = false
			end
		end
	end

end

local function renderStepped(dt)
	if not dropKeyDown then
		down(true)
	else
		down(false)
	end
	
	up()
end

local function keyDown(key,proc)
	if not proc and key.KeyCode == dropDownKey then
		dropKeyDown = true
	end
end

local function keyUp(key, proc)
	if not proc and key.KeyCode == dropDownKey then
		dropKeyDown = false
	end
end

uis.InputBegan:Connect(keyDown)
uis.InputEnded:Connect(keyUp)

run.RenderStepped:Connect(renderStepped)

again sorry for bringing up a solved topic I just saw that in the video it showed drop down through the platform and wanted to make the code I provided work for just that.

1 Like
#11

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