隐身表现：消失是一段渐变不是一瞬

fx-hplink

local StealthMode = {}
local CONST = { KEY = "StealthMode", FADE_IN = 0.3, FADE_OUT = 0.5 }

function StealthMode.Enter(myID)
    StealthMode._active = true
    StealthMode._alpha = 1.0
    StealthMode._sched = SL:Schedule(function(dt)
        StealthMode:Update(dt)
    end, 0.02)
end

function StealthMode:Update(dt)
    if self._active then
        self._alpha = math.max(0.15, self._alpha - dt * 3)
    else
        self._alpha = math.min(1.0, self._alpha + dt * 2)
        if self._alpha >= 1.0 then SL:UnSchedule(self._sched) end
    end
    SL:SetActorAlpha(self._alpha)
end

return StealthMode