迷魂雾：看清了再出手

 fx-fog

local SoulFog = {}
local KEY = { BANDS = 3 }

local density = 60

function SF.Tick(dt)
    -- 雾浓度向基准值回归并叠加波动
    density = density + (60 - density) * dt * 0.3
                  + math.sin(SL:GetValue("engineTime") * 0.8) * 12 * dt
    density = math.max(20, math.min(95, density))
    -- 三层雾带滚动
    for band = 1, KEY.BANDS do
        local scroll = SL:GetValue("engineTime") * (0.6 + band * 0.3)
        SL:DrawFogBand(band, scroll, density)
    end
    -- 狼怪可见度: 浓度的反向映射
    SL:SetActorAlpha("wolf", math.max(0.15, 1 - density / 100 * 0.85))
end

function SF.Disperse()
    -- 挥袖散雾: 浓度骤降
    density = math.max(20, density - 40)
    SL:PlayBurst(SL:GetValue("actorX") + 30,
                 SL:GetValue("actorY") - 50, "fog_disperse", 12)
    SL:PlaySfx("disperse")
end

return SF