石雨：震落满天碎石砸它

rocks[#rocks + 1] = { x = tx, warn = 1 + i * 0.2 }

 fx-rockfall

local RockRain = {}
local ROCK_N, BASE_DELAY, GAP = 5, 0.8, 0.2

function RockRain.Cast()
    SL:ShakeCamera(8, 0.5)
    SL:FlashScreen("#c9a86a", 0.12)
    for i = 1, ROCK_N do
        local x
        if i == 1 then
            x = SL:GetValue("x", "player") + math.random(-40, 40)
        elseif i == 2 then
            x = SL:GetValue("x", "monster") + math.random(-40, 40)
        else
            x = 100 + math.random() * 460
        end
        SL:MarkZone(x, 36, BASE_DELAY + i * GAP)
        SL:RegZoneTick(x, BASE_DELAY + i * GAP, function()
            SL:PlayBurst(x, "rock_boom", 12)
            SL:RingWave(x, 40, "soil_ring")
            SL:DamageZone(x, 36, function(u)
                return SL:IsPlayer(u) or SL:IsMonster(u)
            end)
        end)
    end
end

SL:RegClick("rockrain", RockRain.Cast)

return RockRain