跳跳弹纹：冰窟里弹三弹，弹弹都带疼

flowchart TD
A[点发弹] --> B[冰弹出膛]
B --> C[撞壁反弹]
C --> D{从怪身边过吗}
D -- 过了 --> E[八点入账]
D -- 没过 --> F[铛一声白弹]
E --> G{弹满三回了吗}
F --> G
G -- 没有 --> C
G -- 满了 --> H[化雾散场]

 fx-crest-bounceball

-- @file CrestBounceBall.lua
-- 跳跳弹纹 —— 冰窟里弹三弹 弹弹都带疼

local CrestBounceBall = {}

local CONST = {
    BOUNCE_MAX    = 3,
    PASS_DMG      = 8,
    PASS_RANGE    = 80,
    SHOT_CD       = 5,
    WALL_L        = 46,
    WALL_R        = 614,

    AUTOINC_BASE  = 1204700,
}

local _flying   = false
local _x        = 0
local _y        = 0
local _vx       = 0
local _vy       = 0
local _bounces  = 0
local _cd       = 0
local _autoInc  = 0

local function ShowTip(msg)
    if msg and msg ~= "" then SL:ShowSystemTips(msg) end
end

local function GenID()
    _autoInc = _autoInc + 1
    return CONST.AUTOINC_BASE + _autoInc
end

function CrestBounceBall.Flying() return _flying end

-- 发弹: 四面反弹四面都管
function CrestBounceBall.Shoot()
    if _flying then
        ShowTip("上一枚还在弹")
        return
    end
    if _cd > 0 then
        ShowTip("冰弹还没凝——再等" .. math.ceil(_cd) .. "秒")
        return
    end
    _cd = CONST.SHOT_CD
    _flying = true
    _x = 200
    _y = 120
    _vx = 330
    _vy = -150
    _bounces = CONST.BOUNCE_MAX
    ShowTip("冰弹出膛——撞壁三回,回回带疼")
end

-- 每拍推进: 四面边界各一行
if not _ticker then
    _ticker = SL:Schedule(function(dt)
        if _cd > 0 then _cd = _cd - dt end
        if not _flying then return end
        _x = _x + _vx * dt
        _y = _y + _vy * dt
        _y = _y + 170 * dt
        if _x < CONST.WALL_L then
            _x = CONST.WALL_L
            _vx = math.abs(_vx)
            _bounces = _bounces - 1
        elseif _x > CONST.WALL_R then
            _x = CONST.WALL_R
            _vx = -math.abs(_vx)
            _bounces = _bounces - 1
        end
        if _y < 18 then _y = 18; _vy = math.abs(_vy) end
        if _y > 226 then _y = 226; _vy = -math.abs(_vy) end
        if _bounces <= 0 then
            _flying = false
            ShowTip("冰弹化雾——五秒后再发")
        end
    end, 0.02)
end

SL:ScheduleOnce(function()
    SL:BindDebugButton("发弹!", function()
        CrestBounceBall.Shoot()
    end)
    ShowTip("技能已加载: 跳跳弹纹")
end, 1.0)

function CrestBounceBall.Unload()
    if _ticker then SL:Unschedule(_ticker) end
    _flying = false
end

return CrestBounceBall