How to snap a character to a certain direction

[jacobdavidaz12_Dev (Joe)]

Hi! So I’m making an undertale-like game and to keep the theme, I need to make the character’s direction snap to when the player press the movement keys. Any help will be appreciated!

[DasKairo (Cairo)]

You would need to detect that input they are doing, and if you are using CFrames, you can either rotate it using math.pi/2, or math.rad(90), which should rotate them a 90 degree angle.

[RayK_iv (F2P_Pyro)]

Your best tools in this situation are going to be CFrame.UpVector, CFrame.RightVector, and CFrame.LookVector

Try something like this:

local dir = 0
local char = game:GetService("Players").LocalPlayer.Character
local moving = false

if dir == 0 then --Down
   local root = char:FindFirstChildWhichIsA("Humanoid").RootPart
   root.Anchored = true
   local torso = char:FindFirstChild("Torso")
   if root ~= nil and torso ~= nil then
      local posChange = Vector3.new(0, 0, 0)
      if moving == true then
         posChange = -root.CFrame.UpVector * 2
      end
      torso.CFrame = CFrame.new(root.CFrame.Position + posChange, root.CFrame.Position + posChange - root.CFrame.UpVector
   end
end
if dir == 1 then --Right
   local root = char:FindFirstChildWhichIsA("Humanoid").RootPart
   root.Anchored = true
   local torso = char:FindFirstChild("Torso")
   if root ~= nil and torso ~= nil then
      local posChange = Vector3.new(0, 0, 0)
      if moving == true then
         posChange = root.CFrame.RightVector * 2
      end
      torso.CFrame = CFrame.new(root.CFrame.Position + posChange, root.CFrame.Position + posChange + root.CFrame.RightVector
   end
end
if dir == 2 then --Up
   local root = char:FindFirstChildWhichIsA("Humanoid").RootPart
   root.Anchored = true
   local torso = char:FindFirstChild("Torso")
   if root ~= nil and torso ~= nil then
      local posChange = Vector3.new(0, 0, 0)
      if moving == true then
         posChange = root.CFrame.UpVector * 2
      end
      torso.CFrame = CFrame.new(root.CFrame.Position + posChange, root.CFrame.Position + posChange + root.CFrame.UpVector
   end
end
if dir == 3 then --Left
   local root = char:FindFirstChildWhichIsA("Humanoid").RootPart
   root.Anchored = true
   local torso = char:FindFirstChild("Torso")
   if root ~= nil and torso ~= nil then
      local posChange = Vector3.new(0, 0, 0)
      if moving == true then
         posChange = -root.CFrame.RightVector * 2
      end
      torso.CFrame = CFrame.new(root.CFrame.Position + posChange, root.CFrame.Position + posChange - root.CFrame.RightVector
   end
end

[DasKairo (Cairo)]

the way you are checking if something is a value, its very inefficient.

Also please do not write entire scripts.