Progressive Recoil Control Lua Script

-- rebind: min_sdk=0.1.0
-- rebind: name=Progressive Recoil Curve
-- rebind: description=Recoil increases over time while holding fire

local cfg = UI.Schema({
    enabled = UI.Toggle(true, { label = "Enable" }),
    initial_strength = UI.Slider(50, { min = 10, max = 200, suffix = "%", group = "Recoil" }),
    peak_strength = UI.Slider(150, { min = 50, max = 300, suffix = "%", group = "Recoil" }),
    ramp_time = UI.Slider(1000, { min = 200, max = 3000, suffix = "ms", label = "Time to Peak", group = "Recoil" }),
    fire_rate = UI.Slider(10, { min = 1, max = 30, label = "Fire Rate", suffix = "cps", group = "Recoil" }),
})

-- Base recoil pattern (one cycle)
local pattern = {
    { x = 0, y = 2, delay = 10 },
    { x = -1, y = 3, delay = 10 },
    { x = 1, y = 3, delay = 10 },
    { x = 0, y = 2, delay = 10 },
}

local activeTask = nil

local function getStrengthAtTime(elapsed)
    -- Linear ramp from initial to peak
    local progress = math.min(elapsed / cfg.ramp_time, 1.0)
    local strength = cfg.initial_strength + (cfg.peak_strength - cfg.initial_strength) * progress
    return strength / 100
end

function OnDown(code)
    if code == "Mouse1" and cfg.enabled then
        activeTask = Run(function()
            local holdStart = System.Time()
            local cycleInterval = 1000 / cfg.fire_rate

            while Input.IsDown("Mouse1") do
                local elapsed = System.Time() - holdStart
                local strength = getStrengthAtTime(elapsed)
                local scaled = Math.Scale(pattern, strength, strength)

                for _, step in ipairs(scaled) do
                    if not Input.IsDown("Mouse1") then break end
                    HID.Move(step.x, step.y)
                    Sleep(step.delay or 10)
                end

                Sleep(math.max(0, cycleInterval - 40))
            end
        end)
        return false
    end
end

function OnUp(code)
    if code == "Mouse1" and activeTask then
        activeTask:Cancel()
        activeTask = nil
    end
end

function OnBlur()
    if activeTask then
        activeTask:Cancel()
        activeTask = nil
    end
end