local FuncNode_DistanceLess = class("FuncNode_DistanceLess")

--[[
    初始化
--]]
function FuncNode_DistanceLess:initialize(entity)
    self.LimitChildCount = 3
    self.Type = LuaConst.ConditionFuncType.DistanceLess
end

--[[
    执行
--]]
function FuncNode_DistanceLess:Run(conditionDataNode, entity, missile)
    local startType = conditionDataNode.FirstNode:Run(entity, missile)
    local endType = conditionDataNode.SecondNode:Run(entity, missile)
    local limitDistSqr = conditionDataNode.ThirdNode:Run(entity, missile)
    local distance = FP.Const.Zero

    --到目标的距离
    if startType == FP.Const.Zero and endType == FP.Const.One
        or startType == FP.Const.One and endType == FP.Const.Zero then
        distance = entity.components.target.ToTargetDisSqr
    end

    --到群组领袖的距离
    if startType == FP.Const.Zero and endType == FP.Const.Four
            or startType == FP.Const.Four and endType == FP.Const.Zero then
        distance = entity.components.group.ToLeaderDisSqr
    end

     --到跟随目标的距离
    if startType == FP.Const.Zero and endType == FP.Const.Six
        or startType == FP.Const.Six and endType == FP.Const.Zero then
        distance = entity.components.target.ToFollowTargetDisSqr
    end

    --到主人的距离
    if startType == FP.Const.Zero and endType == FP.Const.Seven then
        if entity:GetMasterEntity() then
            distance = FP.newV1(0)
            entity:GetLogicPos():DistanceSqr(entity:GetMasterEntity():GetLogicPos(), distance)
        end
    end

    return distance < limitDistSqr and FP.Const.One or FP.Const.Zero
end

return FuncNode_DistanceLess