local Base = require("Battle/Logic/AI/Decision/Decision_Base")
local Decision_Return = class("Decision_Return", Base)

--[[
	初始化
--]]
function Decision_Return:initialize(entity)
    --类型
    self.Type = LuaConst.DecisionType.Return

    --瞬时
    self.IsOnce = false
end

--[[
	进入该Decision
--]]
function Decision_Return:DecisionIn(entity, decisionData)
    --清除目标
    SystemManager.SetTarget(entity,nil)
    --寻路
    SystemManager.FindPath(entity,  entity.components.patrol.ExitPatrolPoint, true)
end

function Decision_Return:DecisionOut(entity, decisionData)
    Base.DecisionOut(self, entity, decisionData)
    BattleEventSystem.OnEntityDecisionReturnOut(entity)
end

--[[
	进入条件：
	有群组时：Leader脱战
	无群组时, 目标为空 或 与退出巡逻的位置的距离大于脱战距离
--]]
function Decision_Return:CanEnter(entity, decisionData, command)
    if entity.components.patrol.IsForceReturn then
        return true
    else
        local leader = entity.components.group.LeaderEntity
        if leader then
            local leaderDecisionNode = leader.components.aiBase.CurDecisionNode
            return leaderDecisionNode and leaderDecisionNode.Type == LuaConst.DecisionType.Return
        else
            if not entity.components.target.Target then --目标为空
                --重新索敌
                local warnRange = entity.components.base.CurCharacterData.WarnRange
                SystemManager.OnSearchTarget(entity, 1, warnRange, 1, 0)

                return not entity.components.target.Target --目标依旧为空
            else
                --与退出巡逻的位置的距离是否大于脱战距离
                return FP.V2.IsDistanceSqrGreater(entity.components.patrol.ExitPatrolPoint, entity.components.move.LogicPos, entity.components.base.CurCharacterData.ReturnRange)
            end
        end
    end
end

--[[
	能否退出
	退出条件：已返回出生点
--]]
function Decision_Return:CanExit(entity, decisionData, command)
    local pathComponent = entity.components.path
    local curPathPos = pathComponent.Path[pathComponent.CurPathPosIndex]
    return not curPathPos
end

--[[
	输出指令
--]]
function Decision_Return:SetCommand(entity, decisionData, command)
    return self:RunToPathPoint(entity, command,decisionData)
end

return Decision_Return