local SimpleSkillSelector = require("Script.SimpleSkill.Selector.SimpleSkillSelector")
local SimpleSkillSelector_NearestPawn = LuaClass("SimpleSkillSelector_NearestPawn", SimpleSkillSelector)

function SimpleSkillSelector_NearestPawn:ctor()
    SimpleSkillSelector_NearestPawn.super.ctor(self)
end

function SimpleSkillSelector_NearestPawn:InitSelectorFromData(SelectorData, CasterPawn)
    SimpleSkillSelector.InitSelectorFromData(self, SelectorData, CasterPawn)
end

--- 子类实现
function SimpleSkillSelector_NearestPawn:ActivateSelector()
    SimpleSkillSelector.ActivateSelector(self)

    UE.Log("[SimpleSkillSelector_NearestPawn] activated")

    self:GetNearestPawn()
end

function SimpleSkillSelector_NearestPawn:GetNearestPawn()
    local PawnLoc = self.CasterPawn:K2_GetActorLocation()

    local AllMonsters = {}

    if self.CasterPawn.IsInArena then
        local AttackWaveSpawner = UGCGameSystem.GameState:GetAttackWaveSpawner()
        if AttackWaveSpawner then
            AllMonsters = AttackWaveSpawner.SpawnedMonsters
        end
    else
        local TargetSpawner = UGCGameSystem.GameState:GetSpawnerByPlayerKey(self.CasterPawn.PlayerKey)
        if TargetSpawner then
            AllMonsters = TargetSpawner.SpawnedMonsters
        end
    end

    local Target = nil
    local MinDist = 999999
    for _, Monster in pairs(AllMonsters) do
        if Monster ~= nil and UE.IsValid(Monster) then
            if UGCSimpleCharacterSystem.GetHealth(Monster) > 0 then
                local MonsterLoc = Monster:K2_GetActorLocation()
                local Dist = VectorHelper.GetDistance(PawnLoc, MonsterLoc)
                if Dist <= MinDist then
                    MinDist = Dist
                    Target = Monster
                end
            end
        end
    end

    if Target ~= nil then
        table.insert(self.TargetPawns, Target)
    end
end

return SimpleSkillSelector_NearestPawn;