So I’m making a custom camera setup where it admits a part as the center point, moving and rotating accordingly with that part. The rotation works ok, but because of it, since I’m moving the part based on world position, its movement is out of step with the camera’s direction. I tried to use the camera’s lookvector but using its X and Z components didn’t do much. Does anyone have an idea of what I can do? Thanks in advance.
Example:
Hmm, did you multiple 360 on the lookvector?
local directionAngle = game.Workspace.Camera.CFrame.LookVector*360
I managed to use LookVector partially. The Forward and Backwards motion are okay, but the side movements are really weird depending on the direction the camera is looking, sometimes moving very fast, sometimes moving very slowly.
In the video, when I press A or D + W or S, it goes very fast:
Here’s the relevant parts of the script:
function inputBegan(input, gameProcessed)
if not gameProcessed then
local direction = -Camera.CFrame.LookVector
local x, z = clamp(direction.X, -1, 1), clamp(direction.Z, -1, 1)
if input.KeyCode == Enum.KeyCode.A then
while UserInputService:IsKeyDown(Enum.KeyCode.A) do
cameraPart.CFrame = cameraPart.CFrame:Lerp(cameraPart.CFrame + Vector3.new(-x, 0, z), .75)
task.wait()
end
elseif input.KeyCode == Enum.KeyCode.D then
while UserInputService:IsKeyDown(Enum.KeyCode.D) do
cameraPart.CFrame = cameraPart.CFrame:Lerp(cameraPart.CFrame + Vector3.new(x, 0, -z) , .75)
task.wait()
end
elseif input.KeyCode == Enum.KeyCode.W then
while UserInputService:IsKeyDown(Enum.KeyCode.W) do
cameraPart.CFrame = cameraPart.CFrame:Lerp(cameraPart.CFrame + Vector3.new(-x, 0, -z), .75)
task.wait()
end
elseif input.KeyCode == Enum.KeyCode.S then
while UserInputService:IsKeyDown(Enum.KeyCode.S) do
cameraPart.CFrame = cameraPart.CFrame:Lerp(cameraPart.CFrame + Vector3.new(x, 0, z), .75)
task.wait()
end
end
end
end
function onRenderStepped(dt)
local partPos = cameraPart.Position
local offset = CFrame.new(OFFSET, OFFSET, OFFSET)
local cf = cameraPart.CFrame * CFrame.Angles(0, math.rad(rotation), 0) * offset
Camera.CFrame = CFrame.new(cf.p, partPos)
end
Hmm this might and might not be the solution to the issue, but I think what might be happening is that if you hold d, w at the same times you go 2x faster. What I would maybe do is instead of lerping the camera in the Inputbegan, I would have inputbegan and inputended and have variables that keep track if D,W,A,S is down. And in the renderstepped
I would calculate the direction so if D is down then add .7 to the directionvector
This code is prob not functional but I hope this give an idea of what you could do, you basically don’t lerp the camera right when the input is began, but lets say A is pressed, you change the variable isAdown = true, and then have inputended and if its A then isAdown = false. Then you put the code onRenderStepped so it updates the camera there, this way you don’t need to do
UserInputService:IsKeyDown(Enum.KeyCode.S) to check if the button is down. Did it make sense?
local A, W, S, D = false,false,false,false
local function Toggle(bool, input, gameProcessed)
if not gameProcessed then
if input.KeyCode == Enum.KeyCode.A then
A = bool
elseif input.KeyCode == Enum.KeyCode.D then
D = bool
elseif input.KeyCode == Enum.KeyCode.W then
W = bool
elseif input.KeyCode == Enum.KeyCode.S then
S = bool
end
end
end
function inputBegan(input, gameProcessed)
Toggle(true, input, gameProcessed)
end
function inputEnded(input, gameProcessed)
Toggle(false, input, gameProcessed)
end
function onRenderStepped(dt)
local speedVector = vector3.new(0,0,0)
if D then
speedVector += vector3.new(0,0,.75)
end
if A then
speedVector += vector3.new(0,0,-.75)
end
if W then
speedVector += vector3.new(.75,0,0)
end
if S then
speedVector += vector3.new(-.75,0,0)
end
cameraPart.CFrame = cameraPart.CFrame:Lerp(cameraPart.CFrame + Vector3.new(x, 0, z), .75)
end)
After some testing I found out what is the problem. The LookVector is also considering world space directions, so when I look exactly on the +Z axis, for example, pressing A will cause the part to just move along that axis and since the x value is close to zero, it creates the wrong motion. Not really sure why W and S are completely fine, but I’ll try to make this LookVector relative to the part and work things out. I’ll update this thread if anything clears. Thanks for your input, I appreciate it.
Found the solution. It was just the matter of using RightVector and LeftVector of the own camera, figuring out the direction. Here’s the code:
function inputBegan(input, gameProcessed)
if not gameProcessed then
if input.KeyCode == Enum.KeyCode.A then
while UserInputService:IsKeyDown(Enum.KeyCode.A) do
local direction = -Camera.CFrame.RightVector -- Left Vector
local x, z = clamp(direction.X, -1, 1), clamp(direction.Z, -1, 1)
cameraPart.CFrame = cameraPart.CFrame:Lerp(cameraPart.CFrame + Vector3.new(x, 0, z), .75)
task.wait()
end
elseif input.KeyCode == Enum.KeyCode.D then
while UserInputService:IsKeyDown(Enum.KeyCode.D) do
local direction = Camera.CFrame.RightVector
local x, z = clamp(direction.X, -1, 1), clamp(direction.Z, -1, 1)
cameraPart.CFrame = cameraPart.CFrame:Lerp(cameraPart.CFrame + Vector3.new(x, 0, z) , .75)
task.wait()
end
elseif input.KeyCode == Enum.KeyCode.W then
while UserInputService:IsKeyDown(Enum.KeyCode.W) do
local direction = -Camera.CFrame.LookVector
local x, z = clamp(direction.X, -1, 1), clamp(direction.Z, -1, 1)
cameraPart.CFrame = cameraPart.CFrame:Lerp(cameraPart.CFrame + Vector3.new(-x, 0, -z), .75)
task.wait()
end
elseif input.KeyCode == Enum.KeyCode.S then
while UserInputService:IsKeyDown(Enum.KeyCode.S) do
local direction = -Camera.CFrame.LookVector
local x, z = clamp(direction.X, -1, 1), clamp(direction.Z, -1, 1)
cameraPart.CFrame = cameraPart.CFrame:Lerp(cameraPart.CFrame + Vector3.new(x, 0, z), .75)
task.wait()
end
-- Rotation
elseif input.KeyCode == Enum.KeyCode.E then
-- Rotate to the right
while UserInputService:IsKeyDown(Enum.KeyCode.E) do
rotation -= 2.5
task.wait()
end
elseif input.KeyCode == Enum.KeyCode.Q then
-- Rotate to the left
while UserInputService:IsKeyDown(Enum.KeyCode.Q) do
rotation += 2.5
task.wait()
end
end
end
end
function onRenderStepped(dt)
local partPos = cameraPart.Position
local offset = CFrame.new(OFFSET, OFFSET, OFFSET)
local cf = cameraPart.CFrame * CFrame.Angles(0, math.rad(rotation), 0) * offset
Camera.CFrame = CFrame.new(cf.p, partPos)
end
Either way, thank you for your suggestions.
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