Key Hold to Mouse Movement Script

-- rebind: name=Key Hold to Mouse Movement
-- rebind: description=Hold keys to move mouse in cardinal directions

local cfg = UI.Schema({
    enabled = UI.Toggle(true, { label = "Enable" }),
    
    up_key = UI.Keybind("W", { label = "Move Up", group = "Keys" }),
    down_key = UI.Keybind("S", { label = "Move Down", group = "Keys" }),
    left_key = UI.Keybind("A", { label = "Move Left", group = "Keys" }),
    right_key = UI.Keybind("D", { label = "Move Right", group = "Keys" }),
    
    speed = UI.Slider(5, { min = 1, max = 50, label = "Speed (px/tick)", group = "Movement" }),
    mode = UI.Select("Continuous", { "Continuous", "Acceleration" }, { label = "Mode", group = "Movement" }),
    accel_rate = UI.Slider(1.2, { min = 1, max = 3, step = 0.1, label = "Accel Rate", group = "Movement", showIf = "mode:Acceleration" }),
})

local velocity = { x = 0, y = 0 }

function OnTick()
    if not cfg.enabled then
        return
    end

    local dx = 0
    local dy = 0

    -- read cardinal directions
    if Input.IsDown(cfg.up_key) then dy = dy - 1 end
    if Input.IsDown(cfg.down_key) then dy = dy + 1 end
    if Input.IsDown(cfg.left_key) then dx = dx - 1 end
    if Input.IsDown(cfg.right_key) then dx = dx + 1 end

    if cfg.mode == "Continuous" then
        -- direct movement
        local speed = cfg.speed
        if dx ~= 0 or dy ~= 0 then
            HID.Move(dx * speed, dy * speed)
        end
    else
        -- acceleration mode: velocity builds up
        local speed = cfg.speed
        local accel = cfg.accel_rate

        if dx ~= 0 or dy ~= 0 then
            velocity.x = velocity.x + dx * speed * 0.1
            velocity.y = velocity.y + dy * speed * 0.1
            
            -- cap velocity
            local maxVel = speed * 2
            if math.abs(velocity.x) > maxVel then
                velocity.x = maxVel * (velocity.x > 0 and 1 or -1)
            end
            if math.abs(velocity.y) > maxVel then
                velocity.y = maxVel * (velocity.y > 0 and 1 or -1)
            end
            
            HID.Move(velocity.x, velocity.y)
        else
            -- decelerate when no input
            velocity.x = velocity.x * 0.8
            velocity.y = velocity.y * 0.8
            if math.abs(velocity.x) < 0.1 then velocity.x = 0 end
            if math.abs(velocity.y) < 0.1 then velocity.y = 0 end
        end
    end
end

function OnDown(key)
    if cfg.enabled and (key == cfg.up_key or key == cfg.down_key or key == cfg.left_key or key == cfg.right_key) then
        return false
    end
    return true
end

function OnUp(key)
    if cfg.enabled and (key == cfg.up_key or key == cfg.down_key or key == cfg.left_key or key == cfg.right_key) then
        return false
    end
    return true
end

function OnBlur()
    velocity.x = 0
    velocity.y = 0
end