治疗图腾：插在地上的生命泉

fx-soulchain

local HealTotem = {}
local CONST = { KEY = "HealTotem", DURATION = 4, TICK = 1, AMOUNT = 15, RADIUS = 120 }

function HealTotem.Cast(myID)
    local myX = SL:GetValue("ACTOR_POSITION_X", myID)
    local myY = SL:GetValue("ACTOR_POSITION_Y", myID)
    HealTotem._pos = { x = myX, y = myY }
    HealTotem._left = CONST.DURATION
    HealTotem._tick = 0
    HealTotem._sched = SL:Schedule(function(dt)
        HealTotem:Update(dt)
    end, 0.02)
end

function HealTotem:Update(dt)
    self._left = self._left - dt
    self._tick = self._tick + dt
    if self._tick >= CONST.TICK then
        self._tick = self._tick - CONST.TICK
        local list = SL:GetValue("FIND_IN_VIEW_PLAYER_LIST") or {}
        for _, id in ipairs(list) do
            local px = SL:GetValue("ACTOR_POSITION_X", id)
            local py = SL:GetValue("ACTOR_POSITION_Y", id)
            if math.sqrt((px - self._pos.x) ^ 2 + ((py - self._pos.y) / 0.5) ^ 2) <= CONST.RADIUS then
                SpawnHealOrb(self._pos.x, self._pos.y, id, CONST.AMOUNT)
            end
        end
    end
    if self._left <= 0 then
        SL:UnSchedule(self._sched)
        self._sched = nil
    end
end

return HealTotem