local PathSystem = {}
local pathResult = {}
local FP=FP
local BattleExt=BattleExt
local ipairs=ipairs

--[[
	寻路
--]]
function PathSystem.FindPath(entity, endPos, needSmooth, priorityWall)
    local pathComponent = entity.components.path
    local startPos = entity.components.move.LogicPos

    local startX,startZ = LuaShoveManager.ConvertPosToGrid(startPos)
    local endX,endZ = LuaShoveManager.ConvertPosToGrid(endPos)
    pathComponent.CurFindPathCount = pathComponent.CurFindPathCount + 1
    local limitByBorder = true

    local pathList = pathComponent.Path
    for i, pos in ipairs(pathList) do
        FP.releaseV2(pos)
        pathList[i] = nil
    end
    if pathComponent.TargetPos then
        FP.releaseV2(pathComponent.TargetPos)
    end
    pathComponent.TargetPos = endPos:cloneV2()
    pathComponent.CurPathPosIndex = 1

    local count = BattleExt.GridFindPath(startX, startZ, endX, endZ,
        entity._logicInitData.EntityID, pathComponent.CurFindPathCount, limitByBorder, needSmooth, not priorityWall, pathResult)
    for i = 1, count do
        local x, z = pathResult[i * 2 - 1], pathResult[i * 2]
        pathList[i] = LuaShoveManager.GetPosByGrid(x, z)
    end
end

--[[
	寻路 （给-表现寻路path2 赋值）
--]]
function PathSystem.FindPath2(entity, endPos, needSmooth, priorityWall)
    local pathComponent = entity.components.path
    local startPos = entity.components.move.LogicPos

    local startX,startZ = LuaShoveManager.ConvertPosToGrid(startPos)
    local endX,endZ = LuaShoveManager.ConvertPosToGrid(endPos)
    pathComponent.CurFindPathCount = pathComponent.CurFindPathCount + 1
    local limitByBorder = true

    local pathList = pathComponent.Path2
    for i, pos in ipairs(pathList) do
        FP.releaseV2(pos)
        pathList[i] = nil
    end
    
    local count = BattleExt.GridFindPath(startX, startZ, endX, endZ,
            entity._logicInitData.EntityID, pathComponent.CurFindPathCount, limitByBorder, needSmooth, not priorityWall, pathResult)
    for i = 1, count do
        local x, z = pathResult[i * 2 - 1], pathResult[i * 2]
        pathList[i] = LuaShoveManager.GetPosByGrid(x, z)
    end
end

return PathSystem