冰封领域：霜壳罩住寸步难行

fx-freezewall

local FrostWall = {}
local CONST = { KEY = "FrostWall", FREEZE = 2.0 }

function FrostWall.Cast(myID, targetID)
    FrostWall._target = targetID
    FrostWall._iceT = CONST.FREEZE
    FrostWall._sched = SL:Schedule(function(dt)
        FrostWall:Update(dt)
    end, 0.02)
end

function FrostWall:Update(dt)
    self._iceT = self._iceT - dt
    if self._iceT <= 0 then
        SL:UnSchedule(self._sched)
        self._iceT = -1
        self._target:SetColor(255, 255, 255)
    else
        local breathe = 0.18 + 0.06 * math.sin(self._iceT * 6)
        self._target:SetIceShell(breathe)
        self._target:TintBlue(0.2)
    end
end

return FrostWall