local FuncNode_DistanceToPoint = class("FuncNode_DistanceToPoint")

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

--[[
	执行
--]]
function FuncNode_DistanceToPoint:Run(conditionDataNode, entity, missile)
    local startType = conditionDataNode.FirstNode:Run(entity, missile)
    local targetX = conditionDataNode.SecondNode:Run(entity, missile)
    local targetZ = conditionDataNode.ThirdNode:Run(entity, missile)
    local startPos = nil
    if startType == FP.Const.Zero then
        --自己作为起点
        startPos = entity.components.move.LogicPos:cloneV2()
    elseif startType == FP.Const.One then
        --目标作为起点
        startPos = entity.components.target.Target.components.move.LogicPos:cloneV2()
    end

    local result = FP.Const.Max
    if startPos then
        local targetPos = FP.newV2(targetX, targetZ)
        result = FP.V2.DistanceSqr(startPos,targetPos)

        FP.releaseV2(targetPos)
        FP.releaseV2(startPos)
    else
        logging.error(LTAG.ERROR, "HYW : FuncNode_DistanceToPoint起点异常，起点类型 : ",startType)
    end

    return result
end

return FuncNode_DistanceToPoint