Custom Camera Movement (Top-Down SIM Game)

local Camera = workspace.CurrentCamera
local RunService = game:GetService("RunService")
local UserInputService = game:GetService("UserInputService")
local Player = game.Players.LocalPlayer
local Mouse = Player:GetMouse();
local Character = Player.Character or Player.CharacterAdded:wait()

-- Settings
local MinCamGroundDistance = 20;
local MaxCamGroundDistance = 70;
local KeysHeld = {};
local CamMovementTimeFactor = 1;

-- Wait for the entire character to load.
while (Character.Parent ~= workspace) do
    wait(0)
end

Character:WaitForChild("Head")
Character:WaitForChild("Left Arm")
Character:WaitForChild("Right Arm")
Character:WaitForChild("Torso")
Character:WaitForChild("Humanoid")
Character:WaitForChild("Right Leg")
Character:WaitForChild("Left Leg")

Character:Destroy();
Camera.CameraType = Enum.CameraType.Scriptable

function DefaultRotation()
    local Position = Camera.CoordinateFrame.p
    local RayCheck = Ray.new(Position, Vector3.new(0,-1,0) * 300);
    local HitPart, HitPosition = workspace:FindPartOnRay(RayCheck)
    if (HitPart) then
        local DistanceToGround = (HitPosition - Position).magnitude
        if (DistanceToGround < MinCamGroundDistance) then
            Position = Position + Vector3.new(0, MinCamGroundDistance - DistanceToGround,0);
        elseif (DistanceToGround > MaxCamGroundDistance) then
            Position = Position - Vector3.new(0, DistanceToGround - MaxCamGroundDistance,0);
        end
    end
    Camera.CoordinateFrame = CFrame.new(Position) * CFrame.fromAxisAngle( Vector3.new(1,0,0), -math.pi/4)
end

DefaultRotation();

Mouse.KeyDown:connect(function(Key)
    KeysHeld[Key:byte()] = true;
    print(Key:byte());
end)

Mouse.KeyUp:connect(function(Key)
    KeysHeld[Key:byte()] = false;
end)

RunService.RenderStepped:connect(function()
    local CamAdjustment = Vector3.new(0,0,0);

    if (KeysHeld[119]) then
        -- 'w' is held
        local Forward = Camera.CoordinateFrame:vectorToWorldSpace(Vector3.new(0,0,-1));
        local AdjustedVector = Vector3.new(Forward.X,0,Forward.Z);
        CamAdjustment = CamAdjustment + AdjustedVector
    end

    if (KeysHeld[97]) then
        -- 'a' is held
        local Left = Camera.CoordinateFrame:vectorToWorldSpace(Vector3.new(-1,0,0));
        local AdjustedVector = Vector3.new(Left.X,0,Left.Z);
        CamAdjustment = CamAdjustment + AdjustedVector
    end

    if (KeysHeld[115]) then
        -- 's' is held
        local Backward = Camera.CoordinateFrame:vectorToWorldSpace(Vector3.new(0,0,1));
        local AdjustedVector = Vector3.new(Backward.X,0,Backward.Z);
        CamAdjustment = CamAdjustment + AdjustedVector
    end

    if (KeysHeld[100]) then
        -- 'd' is held
        local Right = Camera.CoordinateFrame:vectorToWorldSpace(Vector3.new(1,0,0));
        local AdjustedVector = Vector3.new(Right.X,0,Right.Z);
        CamAdjustment = CamAdjustment + AdjustedVector
    end

    if (KeysHeld[113]) then
        -- 'q' is held
        Camera.CoordinateFrame = Camera.CoordinateFrame * CFrame.fromAxisAngle(Vector3.new(0,-1,0), math.rad(1))
    end

    if (KeysHeld[101]) then
        -- 'e' is held
        Camera.CoordinateFrame = Camera.CoordinateFrame * CFrame.fromAxisAngle(Vector3.new(0,1,0), math.rad(1))
    end

    Camera.CoordinateFrame = Camera.CoordinateFrame + CamAdjustment
end)