What do i need to learn in order to make a custom 3d platformer character controller?

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#1

i want to achieve a custom 3d platformer character controller replacing the humanoid but i dont really know where to start

the issue is i dont even know how to make a character controller script that replaces the humanoid

ive tried using linear velocity for the movement (to limit the amount of force) for the walkspeed

the code below is what i use for character controlling

RS.RenderStepped:Connect(function()
	local rayToGround = Ray.new(char.Position, Vector3.new(0,-2,0))
		local hit, position = game.Workspace:FindPartOnRayWithIgnoreList(rayToGround, {vis})
		local distance = (char.Position - position).Magnitude
		
		if distance < 1 then
		pose = "Idle"
		char.LinearVelocity.Enabled = true
		char.VectorForce.Force = upForce
		end
	
--	char.AlignPosition.Position = char.Position + Vector3.new(0, 1, 0)
	vis:SetPrimaryPartCFrame(char.CFrame)
	if moveVector == true and walking == true then
		
		if walkW == 1 then
		 force = Vector3.new(camera.CFrame.LookVector.X, 0, camera.CFrame.LookVector.Z)
		 
		elseif walkS == 1 then
			force = Vector3.new(camera.CFrame.LookVector.X, 0, -camera.CFrame.LookVector.Z * linearVelocity.VectorVelocity.Z)
		end
	char.BodyGyro.CFrame = CFrame.new(Vector3.new(), force)
	end
end)

UIS.InputBegan:Connect(function(input)
	if input.KeyCode == Enum.KeyCode.W then
		walking = true
		walkW = 1
		linearVelocity.VectorVelocity = Vector3.new(0, 0, -20)
		pose = "Walking_Pose1"
		
	elseif input.KeyCode == Enum.KeyCode.S then
		walking = true
		walkS = 1
		linearVelocity.VectorVelocity = Vector3.new(0, 0, 20)
		pose = "Walking_Pose1"
		
	elseif input.KeyCode == Enum.KeyCode.A then
		walking = true
		walkA = 1
		linearVelocity.VectorVelocity = Vector3.new(-20, 0, 0)
		pose = "Walking_Pose1"
		
	elseif input.KeyCode == Enum.KeyCode.D then
		walking = true
		walkD = 1
		linearVelocity.VectorVelocity = Vector3.new(20, 0, 0)
		pose = "Walking_Pose1"
		
	elseif input.KeyCode == Enum.KeyCode.Space then
		linearVelocity.VectorVelocity = Vector3.new(0, 0, 0)
		char.AssemblyLinearVelocity = Vector3.new(0, 30, 0)
		pose = "Jump"
		char.LinearVelocity.Enabled = false
		char.VectorForce.Force = Vector3.new(0, 0, 0)
	end
end)
#2

Sorry for the late reply. If you want to make a custom character controller, you’re going to have to delete the character and literally script all the movement. Things that you’ll need to learn are; Vectors, LookVectors, UserInputService, Raycasting, and Camera Manipulation. There isn’t a main source for learning how to make stuff like this so it can be quite difficult. I also recommend that you put things like ground checks in a separate function to prevent confusion.

#3

so do i do rays instead of touch and touch ended?, btw how would i be able to make a part float in the air kinda like replicating the hip height of the humanoid

#4

For things such as checking if the character is on the ground or checking if they are facing as wall should be RayCasted. More general stuff like collecting a coin can use regular Touch events.

For making the part float you’ll just have to set the Y axis of the LinearVelocity to 0;

LinearVelocity.VectorVelocity = Vector3.new(INSERT_NUMBER,0,INSERT_NUMBER)

I haven’t figured out how to make it work for slopes. I myself am currently creating something similar to this. I’ll let you know if I ever figure out the solution.

1 Like
#5

ok, tsym, should i make raycast modules? so i dont have to constantly make a new ray and other stuff and just only raycast and return the hit part?

#6

well, I personally just create a new RayCast every time because sometimes I want other properties like the RayCast normal and other stuff. If you want to make a module then go for it! It depends on what you want to add.

#7

what if its going up a slope?, and also why set the Y axis to 0 instead of setting the other axis to 0 and the Y axis to a number to make it float up a specific height so it wont hit the ground

#8

As stated in one of my previous replies, I haven’t necessarily figured out how to make it function with slopes. Also, The Y axis is set to 0 to make it float. Setting it to any number higher will make it just fly up infinitely.

I’ve experimented with making a movement system using a variety of objects and came to a conclusion. If you want to make character controllers, it’s a lot easier to use VectorForces instead of LinearVelocitys. Also, if you’re going to use VectorForces, I recommend going to the “CustomPhyscicalProperties” of your character part and setting it to these values:
image