local Base = require("Battle/Logic/Level/LevelItemFactory/LevelItem")
local LevelItem_WalkPath = class("LevelItem_WalkPath", Base)
local VisualObject = require("Battle/Expression/VisualObject")

function LevelItem_WalkPath:initialize(data)
    Base.initialize(self,data)
end

--region --***************生命周期***************--
function LevelItem_WalkPath:OnActive()
    if Base.OnActive(self) then
        if self.ItemData.SeeDefault then
            if self.ItemData.ObjectPath and self.ItemData.ObjectPath ~= "" then
                self:CreateWalkPathObject()
            end
        else
            if self.ItemData.WalkShows then
                self:CreateWalkPathObject()
            end
        end
        return true
    end
end

function LevelItem_WalkPath:OnDeactive()
    if Base.OnDeactive(self) then
        self:ClearWalkPathObject()
        return true
    end
end

--endregion 生命周期

--region --***************事件相关***************--
function LevelItem_WalkPath:DoAction(actionType, match, param1)
    if actionType == LuaConst.LevelActionType.WalkPath_Show then
        if param1 then
            self:OnActive()
        else
            self:OnDeactive()
        end
    end
end
--endregion 事件相关

--region --***************内部方法***************--

function LevelItem_WalkPath:ClearWalkPathObject()
    if self._walkObjectList then
        for i = #self._walkObjectList, 1, -1 do
            self._walkObjectList[i]:Dispose()
            self._walkObjectList[i] = nil
        end
    end

    self._walkObjectList = nil
end

function LevelItem_WalkPath:CreateWalkPathObject()
    self._walkObjectList = {}
    local data = self.ItemData
    local objPath     -- 资源路径
    local accumulateLength = 0      -- 总长度
    local preTotalLength = 0        -- 两点间长度
    local prefabInterval = 1        -- 资源间隔

    local curPosY = 0
    if data.ItemPosY then
        curPosY = data.ItemPosY -- 不吸附地面的高度
    end

    if data.SeeDefault then
        objPath = data.ObjectPath
        prefabInterval = data.PrefabInterval
    else
        --LevelPlayerManager.MainEntityCampID --主视角safe
        local walkShowData = data.WalkShows[LevelPlayerManager.MainEntityCampID]
        if walkShowData then
            objPath = walkShowData.ObjectPath     -- 资源路径
            prefabInterval = walkShowData.PrefabInterval
        end
    end

    if objPath == nil or objPath == "" then
        return
    end
    local logicPos = FP.newV2(0,0)
    local logicDir = FP.newV2(0,0)

    local path = data.PathPoints    -- 路点数组
    for i = 1, #path - 1 do
        local current = path[i]
        local next = path[i+1]

        local length = FP.tonumberV1(FP.V2.Distance(next,current))
        logicDir:Reset(next):Sub(current):Normalize()

        local totalLength = preTotalLength + length
        while accumulateLength < totalLength do
            logicPos:Reset(logicDir):Mul(accumulateLength - preTotalLength):Add(current)

            local point = VisualObject.CreateVisualObject(objPath,ExpLevelManager.SceneObjParent)
            local px, pz = FP.tonumberV2(logicPos)
            local cx, cz = FP.tonumberV2(current)
            local nx, nz = FP.tonumberV2(next)
            point:Invoke("SetPositionAndDirection",cx, cz, nx, nz,px, 0, pz)

            table.insert(self._walkObjectList, point)

            accumulateLength = accumulateLength + prefabInterval
        end
        preTotalLength = totalLength
    end
end

--endregion 内部方法

return LevelItem_WalkPath