#include "Location.h"
#include "utils/Utils.h"
#include "render/OpenGlExtensions.h"
#include <iostream>
#include "render/TextureManager.h"
#include "TextModel.h"
#include <cmath>
#include <algorithm>
#include <utility>
#include <functional>
#include <memory>
#include <cfloat>
#include <limits>
#include <random>
#include <stdexcept>
#include <unordered_set>
#include "GameConstants.h"
#include "Character.h"
#include "game_server/IGameServer.h"
#include "external/nlohmann/json.hpp"
#include <SDL.h>

namespace FRG
{
	extern const char* CONST_ZIP_FILE;

	extern float x;

	constexpr float CONST_TAXI_CAR_SCALE = 0.6f;


	static constexpr float CAMERA_FOV_Y = 1.0f / 1.5f;
	// How close the player needs to be to a peaceful NPC before the
	// on_npc_interact callback fires and the conversation begins.
	static constexpr float NPC_TALK_DISTANCE = 1.35f;

	static constexpr float RENDER_DISTRANCE = 50.f;

	static float distancePointToSegmentXZ(const Eigen::Vector3f& p,
	                                      const Eigen::Vector3f& a,
	                                      const Eigen::Vector3f& b)
	{
		const Eigen::Vector2f p2(p.x(), p.z());
		const Eigen::Vector2f a2(a.x(), a.z());
		const Eigen::Vector2f b2(b.x(), b.z());
		const Eigen::Vector2f ab = b2 - a2;
		const float abLenSq = ab.squaredNorm();
		if (abLenSq <= 1e-8f) {
			return (p2 - a2).norm();
		}
		const float t = std::clamp((p2 - a2).dot(ab) / abLenSq, 0.0f, 1.0f);
		const Eigen::Vector2f closest = a2 + ab * t;
		return (p2 - closest).norm();
	}

	Location::Location(Renderer& iRenderer, IGameServer& server,
		std::string locationId)
		: renderer(iRenderer)
		, editor(*this)
		, gameServer_(server)
		, locationId_(std::move(locationId))
	{
	}

	std::shared_ptr<const LocationNetworkState> Location::stateSnapshot() const
	{
		auto snapshot = gameServer_.snapshot();
		if (!snapshot) return {};
		auto location = snapshot->locations.find(locationId_);
		if (location == snapshot->locations.end()) return {};
		return std::shared_ptr<const LocationNetworkState>(
			std::move(snapshot), &location->second.state);
	}

	bool Location::isDarklands() const
	{
		auto snapshot = gameServer_.snapshot();
		return snapshot && snapshot->isDarklands;
	}

	bool Location::isNight() const
	{
		auto snapshot = gameServer_.snapshot();
		return snapshot && snapshot->isNight;
	}

	bool Location::isDawn() const
	{
		auto snapshot = gameServer_.snapshot();
		return snapshot && snapshot->isDawn;
	}

	int Location::globalInt(const std::string& key) const
	{
		auto snapshot = gameServer_.snapshot();
		if (!snapshot) return 0;
		auto it = snapshot->globalInts.find(key);
		return it != snapshot->globalInts.end() ? it->second : 0;
	}

	float Location::globalFloat(const std::string& key) const
	{
		auto snapshot = gameServer_.snapshot();
		if (!snapshot) return 0.f;
		auto it = snapshot->globalFloats.find(key);
		return it != snapshot->globalFloats.end() ? it->second : 0.f;
	}

	void Location::setGlobalInt(const std::string& key, int value)
	{
		gameServer_.submit(SetGlobalIntCommand{key, value});
	}

	void Location::setGlobalFloat(const std::string& key, float value)
	{
		gameServer_.submit(SetGlobalFloatCommand{key, value});
	}

	Location::~Location()
	{
		// The player is shared with the next location and outlives this one: drop
		// everything in him that points into this location.
		if (player) {
			player->onHpChanged = nullptr;
		}
	}

	void Location::setCharacterTarget(
		Character& character, const Eigen::Vector3f& target, std::string callbackName)
	{
		gameServer_.submit(SetCharacterDestinationCommand{
			locationId_, character.entityId(), target, std::move(callbackName)});
	}

	void Location::clearCharacterAttackTarget(Character& character)
	{
		gameServer_.submit(ClearCharacterAttackTargetCommand{
			locationId_, character.entityId()});
	}

	void Location::stopCharacter(Character& character)
	{
		gameServer_.submit(StopCharacterCommand{locationId_, character.entityId()});
	}

	void Location::faceCharacter(Character& character, std::string targetId)
	{
		gameServer_.submit(FaceCharacterCommand{
			locationId_, character.entityId(), std::move(targetId)});
	}

	void Location::replanCharacter(Character& character)
	{
		gameServer_.submit(ReplanCharacterCommand{locationId_, character.entityId()});
	}

	void Location::resetCharacterAfterDeath(Character& character)
	{
		gameServer_.submit(
			ResetCharacterAfterDeathCommand{locationId_, character.entityId()});
	}

	void Location::tryCharacterAttackCombo(Character& character)
	{
		gameServer_.submit(
			TryCharacterAttackComboCommand{locationId_, character.entityId()});
	}

	void Location::setCharacterHp(Character& character, float hp)
	{
		gameServer_.submit(
			SetCharacterHealthCommand{locationId_, character.entityId(), hp});
		auto state = character.stateSnapshot();
		if (character.onHpChanged && state)
			character.onHpChanged(
				state->hp,
				state->initialHp,
				std::string());
	}

	bool Location::hasInventoryItem(const std::string& itemId) const
	{
		auto snapshot = gameServer_.snapshot();
		return snapshot &&
			std::find(
				snapshot->inventoryItemIds.begin(),
				snapshot->inventoryItemIds.end(),
				itemId) != snapshot->inventoryItemIds.end();
	}

	std::size_t Location::inventoryItemCount() const
	{
		auto snapshot = gameServer_.snapshot();
		return snapshot ? snapshot->inventoryItemIds.size() : 0;
	}

	void Location::addInventoryItem(std::string itemId)
	{
		gameServer_.submit(AddInventoryItemCommand{std::move(itemId)});
	}

	void Location::removeInventoryItem(std::string itemId)
	{
		gameServer_.submit(RemoveInventoryItemCommand{std::move(itemId)});
	}

	namespace {
	const nlohmann::json* findQuestProgress(
		const GameSnapshot& snapshot, const std::string& questId)
	{
		if (!snapshot.questJournal.contains("quests") ||
			!snapshot.questJournal["quests"].is_array()) return nullptr;
		for (const auto& quest : snapshot.questJournal["quests"])
			if (quest.value("id", std::string()) == questId) return &quest;
		return nullptr;
	}

	bool hasQuestObjective(
		const nlohmann::json& quest, const std::string& objectiveId)
	{
		if (!quest.contains("objectives") || !quest["objectives"].is_array())
			return false;
		for (const auto& objective : quest["objectives"])
			if (objective.value("id", std::string()) == objectiveId) return true;
		return false;
	}
	}

	bool Location::unlockQuest(const std::string& questId)
	{
		auto snapshot = gameServer_.snapshot();
		if (!snapshot || !findQuestProgress(*snapshot, questId)) return false;
		gameServer_.submit(UnlockQuestCommand{questId});
		return true;
	}

	bool Location::completeQuest(const std::string& questId)
	{
		auto snapshot = gameServer_.snapshot();
		if (!snapshot || !findQuestProgress(*snapshot, questId)) return false;
		gameServer_.submit(CompleteQuestCommand{questId});
		return true;
	}

	bool Location::failQuest(const std::string& questId)
	{
		auto snapshot = gameServer_.snapshot();
		if (!snapshot || !findQuestProgress(*snapshot, questId)) return false;
		gameServer_.submit(FailQuestCommand{questId});
		return true;
	}

	bool Location::setQuestObjectiveCompleted(
		const std::string& questId, const std::string& objectiveId, bool completed)
	{
		auto snapshot = gameServer_.snapshot();
		const auto* quest = snapshot
			? findQuestProgress(*snapshot, questId)
			: nullptr;
		if (!quest || !hasQuestObjective(*quest, objectiveId)) return false;
		gameServer_.submit(SetQuestObjectiveCompletedCommand{
			questId, objectiveId, completed});
		return true;
	}

	bool Location::setQuestObjectiveVisible(
		const std::string& questId, const std::string& objectiveId, bool visible)
	{
		auto snapshot = gameServer_.snapshot();
		const auto* quest = snapshot
			? findQuestProgress(*snapshot, questId)
			: nullptr;
		if (!quest || !hasQuestObjective(*quest, objectiveId)) return false;
		gameServer_.submit(SetQuestObjectiveVisibleCommand{
			questId, objectiveId, visible});
		return true;
	}

	bool Location::setQuestActiveObjective(
		const std::string& questId, int objectiveIndex)
	{
		auto snapshot = gameServer_.snapshot();
		const auto* quest = snapshot
			? findQuestProgress(*snapshot, questId)
			: nullptr;
		if (!quest || !quest->contains("objectives") ||
			!(*quest)["objectives"].is_array() || objectiveIndex < 0 ||
			objectiveIndex >= static_cast<int>((*quest)["objectives"].size())) {
			return false;
		}
		gameServer_.submit(SetQuestActiveObjectiveCommand{
			questId, objectiveIndex});
		return true;
	}

	// ---- Pending-target lookup ----

	TeleportZone* Location::getTargetTeleportZone(const LocationNetworkState& state)
	{
		if (state.targetTeleportZoneId.empty()) return nullptr;
		for (auto& zone : teleportZones)
			if (zone.id == state.targetTeleportZoneId) return &zone;
		return nullptr;
	}

	// ---- Setup ----

	void Location::setup(const LocationSetup& params, AudioPlayerAsync* audioPlayer)
	{
		if (!params.gameState) throw std::runtime_error("Location requires authoritative state binding");
		if (!params.definition) throw std::runtime_error("Location requires prepared content definition");
		if (!params.localState) throw std::runtime_error("Location requires local state binding");
		localState_ = params.localState;
		const LocationDefinition& definition = *params.definition;
		this->audioPlayer = audioPlayer;
		pathVisualization.initialize();

		editor.buildNavMeshes();

		//setupNavigation(params.navigationJsonPaths);


		// Load static game objects
		{
			StaticObjectSet staticObjects =
				GameObjectLoader::createGameObjects(
					definition.staticObjects, renderer, CONST_ZIP_FILE);
			gameObjects = std::move(staticObjects.single);
			instancedBatches = std::move(staticObjects.batches);
		}
		SDL_PumpEvents();

		// Load interactive objects
		interactiveObjects = GameObjectLoader::createInteractiveObjects(
			definition.interactiveObjects, renderer,
			params.gameState->interactiveObjects, CONST_ZIP_FILE);
		SDL_PumpEvents();

		auto sparkTexture = renderer.textureManager.LoadFromPng("resources/w/spark.png", CONST_ZIP_FILE);

		if (!params.player) throw std::runtime_error("Location requires game-level player binding");
		player = params.player;
		player->bindToLocation(locationId_);
		synchronizeRemotePlayers();
		logger() << "Load resurces step 9" << std::endl;
		SDL_PumpEvents();

		// Load NPCs from JSON. Aggressive (canAttack) NPCs need a player target
		// and hit sparks; peaceful NPCs don't take damage from the player so
		// they don't need either.
		npcs = GameObjectLoader::createNpcs(
			definition.npcs, renderer, params.gameState->npcs,
			gameServer_, locationId_, CONST_ZIP_FILE);
		for (auto& npc : npcs) {
			if (!npc) continue;
			auto state = npc->stateSnapshot();
			if (state && state->canAttack) {
				npc->setupHitSparks(sparkTexture);
				npc->audioPlayer = audioPlayer;
			}
		}

		SDL_PumpEvents();

		auto activeTeleportTexture =
			renderer.textureManager.LoadFromPng(
				"resources/w/star.png", CONST_ZIP_FILE);
		auto inactiveTeleportTexture =
			renderer.textureManager.LoadFromPng(
				"resources/w/star_red.png", CONST_ZIP_FILE);
		for (const TeleportDefinition& data : definition.teleports) {
			TeleportZone zone;
			zone.id = data.id;
			zone.position = data.position;
			zone.radius = data.radius;
			zone.destinationLocation = data.destinationLocation;
			zone.destinationPosition = data.destinationPosition;
			zone.destinationRotationY = data.destinationRotationY;
			zone.automatic = data.automatic;
			zone.automaticRadius = data.automaticRadius;
			auto active = params.gameState->teleportZones.find(data.id);
			zone.active = active != params.gameState->teleportZones.end()
				? active->second : data.active;
			zone.initSparks(
				activeTeleportTexture, inactiveTeleportTexture);
			teleportZones.push_back(std::move(zone));
		}
		for (const TriggerZoneDefinition& data : definition.triggerZones) {
			TriggerZone zone;
			zone.id = data.id;
			zone.position = data.position;
			zone.radius = data.radius;
			zone.hysteresis = data.hysteresis;
			auto state = params.gameState->triggerZones.find(data.id);
			if (state != params.gameState->triggerZones.end()) {
				zone.enabled = state->second.enabled;
				zone.playerInside = state->second.playerInside;
			} else {
				zone.enabled = data.enabled;
			}
			triggerZones.push_back(std::move(zone));
		}
		for (const PointLightDefinition& data : definition.pointLights) {
			PointLight light;
			light.id = data.id;
			light.position = data.position;
			light.direction = data.direction;
			light.color = data.color;
			light.autoLight = data.autoLight;
			light.autoLightDistance = data.autoLightDistance;
			light.limitX = data.limitX;
			light.limitY = data.limitY;
			light.autoLightLimitX = data.autoLightLimitX;
			light.autoLightLimitY = data.autoLightLimitY;
			pointLights.push_back(std::move(light));
		}

		SDL_PumpEvents();

		dialogueSystem.init(renderer, CONST_ZIP_FILE);
		dialogueSystem.loadDatabase(params.dialoguesJsonPath);
		dialogueSystem.loadCutsceneDatabase("resources/dialogue/cutscenes008.json");
		dialogueSystem.loadTranslations("resources/dialogue/translate_dialogues.json");
		dialogueSystem.loadCutsceneTranslations("resources/dialogue/translate_cutscenes.json");
		dialogueSystem.setGlobalFlagAccessors(
			[this](const std::string& key) { return globalInt(key); },
			[this](const std::string& key, int value) {
				setGlobalInt(key, value);
			});
		dialogueSystem.setQuestActionHandler(
			[this](const Dialogue::QuestActionRequest& request) {
				switch (request.type) {
				case Dialogue::QuestActionType::Unlock:
					unlockQuest(request.questId);
					break;
				case Dialogue::QuestActionType::Complete:
					completeQuest(request.questId);
					break;
				case Dialogue::QuestActionType::Fail:
					failQuest(request.questId);
					break;
				case Dialogue::QuestActionType::CompleteObjective:
					setQuestObjectiveCompleted(
						request.questId, request.objectiveId, true);
					break;
				case Dialogue::QuestActionType::ShowObjective:
					setQuestObjectiveVisible(
						request.questId, request.objectiveId, true);
					break;
				}
			});

		SDL_PumpEvents();

		npcNameText = std::make_unique<TextRenderer>();
		if (!npcNameText->init(renderer, "resources/fonts/DroidSans.ttf", 24, CONST_ZIP_FILE)) {
			std::cerr << "Failed to init NPC name TextRenderer" << std::endl;
			npcNameText.reset();
		}

		scriptEngine.init(this, audioPlayer, params.scriptPath);

		dialogueSystem.setOnCutsceneFinished([this](const std::string& cutsceneId) {
			scriptEngine.callCutsceneCompleteCallback(cutsceneId);
		});

		dialogueSystem.setOnDialogueLineStarted([this](const std::string& fn) {
			try { scriptEngine.callActivateFunction(fn); }
			catch (const std::exception& e) {
				std::cerr << "[dialogue] line callback error: " << e.what() << "\n";
			}
		});
		dialogueSystem.setOnCutsceneLineStarted([this](const std::string& fn) {
			try { scriptEngine.callActivateFunction(fn); }
			catch (const std::exception& e) {
				std::cerr << "[cutscene] line callback error: " << e.what() << "\n";
			}
		});
		dialogueSystem.setOnCutsceneFadeInComplete([this](const std::string& fn) {
			try { scriptEngine.callActivateFunction(fn); }
			catch (const std::exception& e) {
				std::cerr << "[cutscene] fade-in callback error: " << e.what() << "\n";
			}
		});

		carTexture = renderer.textureManager.LoadFromPng("resources/e/car4096_v002.png", CONST_ZIP_FILE);
		carMesh.data = LoadModelFromBinFile("resources/e/car004.txt.bin", CONST_ZIP_FILE);
		carMesh.data.Scale(CONST_TAXI_CAR_SCALE);
		carMesh.data.RotateByMatrix(Eigen::Quaternionf(Eigen::AngleAxisf(M_PI * 0.5, Eigen::Vector3f::UnitY())).toRotationMatrix());
		carMesh.RefreshVBO();

		carWheelTexture = renderer.textureManager.LoadFromPng("resources/w/exterior/Wheel_base003.png", CONST_ZIP_FILE);
		carWheelMesh.data = LoadModelFromBinFile("resources/e/car_wheel001.txt.bin", CONST_ZIP_FILE);
		carWheelMesh.data.Scale(CONST_TAXI_CAR_SCALE);
		carWheelMesh.data.RotateByMatrix(Eigen::Quaternionf(Eigen::AngleAxisf(M_PI * 0.5, Eigen::Vector3f::UnitY())).toRotationMatrix());
		carWheelMesh.RefreshVBO();

	}

	std::shared_ptr<Character> Location::createPlayer(Renderer& renderer, AudioPlayerAsync* audioPlayer,
		IGameServer& server, const std::string& playerId)
	{
		//auto playerTexture = std::make_shared<Texture>(CreateTextureDataFromPng("resources/w/gg/IMG_20260413_182354_992.png", CONST_ZIP_FILE));
		//auto playerTexture = renderer.textureManager.LoadFromPng("resources/w/gg/UniV_Grid_2K_Base_color.png", CONST_ZIP_FILE);
		auto playerTexture = renderer.textureManager.LoadFromPng("resources/w/gg/UniV_Grid_2K_Base_color001.png", CONST_ZIP_FILE);

		auto sparkTexture = renderer.textureManager.LoadFromPng("resources/w/spark.png", CONST_ZIP_FILE);

		auto player = std::make_shared<Character>(
			server, std::string(), playerId);

		player->loadBinaryAnimation(AnimationState::STAND, "resources/w/gg/new2/gg_stand_idle001_small.anim", CONST_ZIP_FILE);
		player->loadBinaryAnimation(AnimationState::WALK, "resources/w/gg/new2/gg_walk001_small.anim", CONST_ZIP_FILE);
		player->loadBinaryAnimation(AnimationState::STAND_TO_ACTION, "resources/w/gg/new2/gg_stand_to_action001_small.anim", CONST_ZIP_FILE);

		player->loadBinaryAnimation(AnimationState::ACTION_ATTACK, "resources/w/gg/new2/gg_action_chop001_small.anim", CONST_ZIP_FILE);
		player->loadBinaryAnimation(AnimationState::ACTION_ATTACK_2, "resources/w/gg/new2/gg_action_stab001_small.anim", CONST_ZIP_FILE);
		player->loadBinaryAnimation(AnimationState::ACTION_IDLE, "resources/w/gg/new2/gg_action_idle002_small.anim", CONST_ZIP_FILE);
		player->loadBinaryAnimation(AnimationState::ACTION_TO_STAND, "resources/w/gg/new2/gg_action_to_stand001_small.anim", CONST_ZIP_FILE);
		player->loadBinaryAnimation(AnimationState::ACTION_TO_DEATH, "resources/w/gg/new2/gg_die001_small.anim", CONST_ZIP_FILE);
		player->loadBinaryAnimation(AnimationState::DEATH_IDLE, "resources/w/gg/new2/gg_die_idle001_small.anim", CONST_ZIP_FILE);


		player->weaponTexture = renderer.textureManager.LoadFromPng("resources/w/gg/Props.png", CONST_ZIP_FILE);
		player->weaponMesh.data = LoadModelFromBinFile("resources/w/gg/knife002.txt.bin", CONST_ZIP_FILE);
		player->weaponMesh.data.Move(Vector3f(0, -0.3, 0));
		player->weaponMesh.data.Scale(0.2f);
		player->weaponMesh.RefreshVBO();
		player->weaponAttachBoneName = "RightHand";
		player->weaponInitialRotation = Eigen::AngleAxisf(-M_PI * 0.5, Eigen::Vector3f::UnitZ()).toRotationMatrix();
		player->weaponInitialPosition = Eigen::Vector3f(0, 0.09, 0.016);

		player->setTexture(playerTexture);
		player->setupHitSparks(sparkTexture);
		player->audioPlayer = audioPlayer;

		return player;
	}

	void Location::synchronizeRemotePlayers()
	{
		const auto snapshot = gameServer_.snapshot();
		if (!snapshot) return;
		const std::string& localId = gameServer_.localPlayerId();

		for (auto it = remotePlayers_.begin(); it != remotePlayers_.end();) {
			if (it->first == localId ||
				snapshot->players.find(it->first) == snapshot->players.end()) {
				it = remotePlayers_.erase(it);
			} else {
				++it;
			}
		}

		for (const auto& [id, state] : snapshot->players) {
			if (id == localId || remotePlayers_.count(id) > 0) continue;
			auto remote = createPlayer(renderer, audioPlayer, gameServer_, id);
			remote->bindToLocation(locationId_);
			remotePlayers_.emplace(id, std::move(remote));
		}
	}

	void Location::drawRemotePlayerNames(
		const Eigen::Matrix4f& cameraViewMatrix,
		const Eigen::Matrix4f& projectionMatrix)
	{
		if (!npcNameText) return;
		for (auto& [id, remote] : remotePlayers_) {
			if (!remote) continue;
			const auto state = remote->stateSnapshot();
			const std::string& name =
				state && !state->npcName.empty() ? state->npcName : id;
			remote->drawPlayerName(
				*npcNameText, cameraViewMatrix, projectionMatrix, name);
		}
	}

	void Location::loadTeleportZones(const std::string& jsonPath, const char* zipFile)
	{
		if (jsonPath.empty()) return;

		std::string content;
		try {
			if (!zipFile || zipFile[0] == '\0') {
				content = readTextFile(jsonPath);
			} else {
				auto buf = readFileFromZIP(jsonPath, zipFile);
				if (buf.empty()) {
					std::cerr << "[TELEPORT] Failed to read " << jsonPath << " from zip" << std::endl;
					return;
				}
				content.assign(buf.begin(), buf.end());
			}
		} catch (const std::exception& e) {
			std::cerr << "[TELEPORT] Failed to open " << jsonPath << ": " << e.what() << std::endl;
			return;
		}

		using json = nlohmann::json;
		json j;
		try {
			j = json::parse(content);
		} catch (const std::exception& e) {
			std::cerr << "[TELEPORT] JSON parse error in " << jsonPath << ": " << e.what() << std::endl;
			return;
		}

		if (!j.contains("teleports") || !j["teleports"].is_array()) return;

		auto activeTex   = renderer.textureManager.LoadFromPng("resources/w/star.png",     zipFile ? zipFile : "");
		auto inactiveTex = renderer.textureManager.LoadFromPng("resources/w/star_red.png", zipFile ? zipFile : "");

		std::unordered_set<std::string> ids;
		for (const auto& item : j["teleports"]) {
			TeleportZone tz;
			tz.id = item.at("id").get<std::string>();
			if (tz.id.empty() || !ids.insert(tz.id).second)
				throw std::runtime_error(
					"Missing or duplicate teleport id in " + jsonPath);
			tz.active = item.value("active", false);
			tz.position = Eigen::Vector3f(
				item.value("positionX", 0.0f),
				item.value("positionY", 0.0f),
				item.value("positionZ", 0.0f)
			);
			tz.radius = item.value("radius", 0.0f);
			tz.automatic = item.value("automatic", false);
			tz.automaticRadius = item.value("automaticRadius", tz.radius);
			tz.destinationLocation = item.value("destinationLocation", "");
			tz.destinationPosition = Eigen::Vector3f(
				item.value("destinationPositionX", 0.0f),
				item.value("destinationPositionY", 0.0f),
				item.value("destinationPositionZ", 0.0f)
			);
			tz.destinationRotationY = item.value("destinationRotationY", 0.0f);
			tz.initSparks(activeTex, inactiveTex);
			teleportZones.push_back(std::move(tz));
		}

		logger() << "[TELEPORT] Loaded " << teleportZones.size() << " teleport(s) from " << jsonPath << std::endl;
		
	}

	void Location::loadTriggerZones(const std::string& jsonPath, const char* zipFile)
	{
		if (jsonPath.empty()) return;

		std::string content;
		try {
			if (!zipFile || zipFile[0] == '\0') {
				content = readTextFile(jsonPath);
			} else {
				auto buf = readFileFromZIP(jsonPath, zipFile);
				if (buf.empty()) {
					std::cerr << "[TRIGGER] Failed to read " << jsonPath << " from zip" << std::endl;
					return;
				}
				content.assign(buf.begin(), buf.end());
			}
		} catch (const std::exception& e) {
			std::cerr << "[TRIGGER] Failed to open " << jsonPath << ": " << e.what() << std::endl;
			return;
		}

		using json = nlohmann::json;
		json j;
		try {
			j = json::parse(content);
		} catch (const std::exception& e) {
			std::cerr << "[TRIGGER] JSON parse error in " << jsonPath << ": " << e.what() << std::endl;
			return;
		}

		if (!j.contains("trigger_zones") || !j["trigger_zones"].is_array()) return;

		std::unordered_set<std::string> ids;
		for (const auto& item : j["trigger_zones"]) {
			TriggerZone tz;
			tz.id = item.at("id").get<std::string>();
			if (tz.id.empty() || !ids.insert(tz.id).second)
				throw std::runtime_error(
					"Missing or duplicate trigger-zone id in " + jsonPath);
			tz.enabled   = item.value("enabled", true);
			tz.radius    = item.value("radius", 1.5f);
			tz.hysteresis = item.value("hysteresis", 0.3f);
			tz.position  = Eigen::Vector3f(
				item.value("positionX", 0.0f),
				item.value("positionY", 0.0f),
				item.value("positionZ", 0.0f)
			);
			triggerZones.push_back(std::move(tz));
		}


		logger() << "[TRIGGER] Loaded " << triggerZones.size() << " trigger zone(s) from " << jsonPath << std::endl;
	}

	void Location::loadPointLights(const std::string& jsonPath, const char* zipFile)
	{
		if (jsonPath.empty()) return;

		std::string content;
		try {
			if (!zipFile || zipFile[0] == '\0') {
				content = readTextFile(jsonPath);
			} else {
				auto buf = readFileFromZIP(jsonPath, zipFile);
				if (buf.empty()) {
					std::cerr << "[LIGHTS] Failed to read " << jsonPath << " from zip" << std::endl;
					return;
				}
				content.assign(buf.begin(), buf.end());
			}
		} catch (const std::exception& e) {
			std::cerr << "[LIGHTS] Failed to open " << jsonPath << ": " << e.what() << std::endl;
			return;
		}

		using json = nlohmann::json;
		json j;
		try {
			j = json::parse(content);
		} catch (const std::exception& e) {
			std::cerr << "[LIGHTS] JSON parse error in " << jsonPath << ": " << e.what() << std::endl;
			return;
		}

		if (!j.contains("lights") || !j["lights"].is_array()) return;

		for (const auto& item : j["lights"]) {
			PointLight pl;
			pl.id        = item.value("id", "");
			pl.autoLight          = item.value("autoLight", false);
			pl.autoLightDistance  = item.value("autoLightDistance", -1.0f);
			pl.limitX             = item.value("limitX",          99999.f);
			pl.limitY             = item.value("limitY",          99999.f);
			pl.autoLightLimitX    = item.value("autoLightLimitX", -1.0f);
			pl.autoLightLimitY    = item.value("autoLightLimitY", -1.0f);
			pl.position = Eigen::Vector3f(
				item.value("positionX", 0.0f),
				item.value("positionY", 0.0f),
				item.value("positionZ", 0.0f)
			);
			pl.direction = Eigen::Vector3f(
				item.value("directionX", 0.0f),
				item.value("directionY", -1.0f),
				item.value("directionZ", 0.0f)
			);
			pl.color = Eigen::Vector3f(
				item.value("colorR", 1.0f),
				item.value("colorG", 1.0f),
				item.value("colorB", 1.0f)
			);
			pointLights.push_back(std::move(pl));
		}

		logger() << "[LIGHTS] Loaded " << pointLights.size() << " light(s) from " << jsonPath << std::endl;
	}

	void Location::updateTriggerZones(const Eigen::Vector3f& playerPos)
	{
		for (int i = 0; i < static_cast<int>(triggerZones.size()); ++i) {
			TriggerZone& tz = triggerZones[i];
			if (!tz.enabled) continue;
			const float dist = (playerPos - tz.position).norm();
			if (!tz.playerInside && dist <= tz.radius) {
				tz.playerInside = true;
				scriptEngine.callTriggerEnterCallback(tz.id);
			} else if (tz.playerInside && dist > tz.radius + tz.hysteresis) {
				tz.playerInside = false;
				scriptEngine.callTriggerExitCallback(tz.id);
			}
		}
	}

	bool Location::switchNavigation(int index)
	{
		auto state = stateSnapshot();
		if (!state || index < 0 ||
			index >= static_cast<int>(state->navigationMaps.size())) {
			std::cerr << "[NAV] switchNavigation: index " << index << " out of range\n";
			return false;
		}
		gameServer_.submit(SwitchLocationNavigationCommand{locationId_, index});

		if (editorMode == EditorMode::Navigation) {
			editor.buildNavMeshes();
		}
		logger() << "[NAV] Switched to navigation map " << index << "\n";
		return true;
	}

	InteractiveObject* Location::raycastInteractiveObjects(const Eigen::Vector3f& rayOrigin, const Eigen::Vector3f& rayDir) {
		if (interactiveObjects.empty()) {
			//logger() << "[RAYCAST] No interactive objects to check" << std::endl;
			return nullptr;
		}

		//logger() << "[RAYCAST] Starting raycast with " << interactiveObjects.size() << " objects" << std::endl;
		//logger() << "[RAYCAST] Ray origin: (" << rayOrigin.x() << ", " << rayOrigin.y() << ", " << rayOrigin.z() << ")" << std::endl;
		//logger() << "[RAYCAST] Ray dir: (" << rayDir.x() << ", " << rayDir.y() << ", " << rayDir.z() << ")" << std::endl;

		float closestDistance = FLT_MAX;
		InteractiveObject* closestObject = nullptr;
		const bool darklands = isDarklands();

		for (auto& intObj : interactiveObjects) {
			//logger() << "[RAYCAST] Checking object: " << intObj.loadedObject.name << " (active: " << intObj.isActive << ")" << std::endl;

			if (!intObj.state.isActive || intObj.state.isAnimating) {
				//logger() << "[RAYCAST]   -> Object inactive or animating, skipping" << std::endl;
				continue;
			}

			if (darklands) {
				if (!intObj.loadedObject.textureDarklands) continue;
			} else {
				if (!intObj.loadedObject.texture) continue;
			}

			//logger() << "[RAYCAST]   Position: (" << intObj.position.x() << ", " << intObj.position.y() << ", "
			//	<< intObj.position.z() << "), Radius: " << intObj.interactionRadius << std::endl;

			const bool hasBox = !(intObj.state.boundsMin.isZero() && intObj.state.boundsMax.isZero());
			if (hasBox) {
				const Eigen::Vector3f worldMin = intObj.state.position + intObj.state.boundsMin;
				const Eigen::Vector3f worldMax = intObj.state.position + intObj.state.boundsMax;
				float tMin = 0.1f;
				float tMax = FLT_MAX;
				bool miss = false;
				for (int axis = 0; axis < 3; ++axis) {
					if (std::abs(rayDir[axis]) < 1e-8f) {
						if (rayOrigin[axis] < worldMin[axis] || rayOrigin[axis] > worldMax[axis]) {
							miss = true;
							break;
						}
					} else {
						const float invD = 1.0f / rayDir[axis];
						float t0 = (worldMin[axis] - rayOrigin[axis]) * invD;
						float t1 = (worldMax[axis] - rayOrigin[axis]) * invD;
						if (invD < 0.0f) std::swap(t0, t1);
						tMin = max(tMin, t0);
						tMax = min(tMax, t1);
						if (tMax < tMin) { miss = true; break; }
					}
				}
				if (!miss && tMin < closestDistance) {
					closestDistance = tMin;
					closestObject = &intObj;
				}
			} else {
				Eigen::Vector3f toObject = intObj.state.position - rayOrigin;

				float distanceAlongRay = toObject.dot(rayDir);

				if (distanceAlongRay < 0.1f) {
					continue;
				}

				Eigen::Vector3f closestPointOnRay = rayOrigin + rayDir * distanceAlongRay;
				float distToObject = (closestPointOnRay - intObj.state.position).norm();

				if (distToObject <= intObj.state.interactionRadius && distanceAlongRay < closestDistance) {
					closestDistance = distanceAlongRay;
					closestObject = &intObj;
				}
			}
		}
		/*
		if (closestObject) {
			logger() << "[RAYCAST] *** RAYCAST SUCCESS: Found object " << closestObject->loadedObject.name << " ***" << std::endl;
		}
		else {
			logger() << "[RAYCAST] No objects hit" << std::endl;
		}
		*/
		return closestObject;
	}

	Character* Location::raycastNpcs(const Eigen::Vector3f& rayOrigin, const Eigen::Vector3f& rayDir, float maxDistance) {
		// Every NPC is treated as a vertical cylinder: radius 1.0m, height 1.85m,
		// base at npc->position (the model's foot). Intersection = circle hit in the
		// XZ plane, then clip the entry/exit t against the [yFoot, yFoot+height] slab.
		static constexpr float NPC_CLICK_RADIUS = 1.0f;
		static constexpr float NPC_CLICK_HEIGHT = 1.85f;

		Character* closestNpc = nullptr;
		float closestDist = maxDistance;

		//logger() << "[RAYCAST_NPC] Starting raycast with " << npcs.size() << " npcs" << std::endl;

		for (auto& npc : npcs) {
			auto npcState = npc ? npc->stateSnapshot() : nullptr;
			if (!npcState || npcState->hp <= 0.f) {
				//logger() << "[RAYCAST_NPC]   " << npc->entityId() << " is dead, skipping" << std::endl;
				continue;
			}
			if (!npcState->enabled) continue;
			const float dx = rayOrigin.x() - npcState->position.x();
			const float dz = rayOrigin.z() - npcState->position.z();
			const float a = rayDir.x() * rayDir.x() + rayDir.z() * rayDir.z();
			if (a < 1e-6f) continue; // purely-vertical ray; not a real click case

			const float b = 2.0f * (dx * rayDir.x() + dz * rayDir.z());
			const float c = dx * dx + dz * dz - NPC_CLICK_RADIUS * NPC_CLICK_RADIUS;
			const float disc = b * b - 4.0f * a * c;
			if (disc < 0.0f) continue; // ray misses the infinite cylinder

			const float sqrtDisc = std::sqrt(disc);
			const float tNear = (-b - sqrtDisc) / (2.0f * a);
			const float tFar  = (-b + sqrtDisc) / (2.0f * a);

			float entryT = max(tNear, 0.1f);
			float exitT  = tFar;

			// Clip against the cylinder's vertical extent.
			const float yMin = npcState->position.y();
			const float yMax = yMin + NPC_CLICK_HEIGHT;
			if (std::abs(rayDir.y()) > 1e-6f) {
				const float tYa = (yMin - rayOrigin.y()) / rayDir.y();
				const float tYb = (yMax - rayOrigin.y()) / rayDir.y();
				entryT = max(entryT, min(tYa, tYb));
				exitT  = min(exitT,  max(tYa, tYb));
			}
			else if (rayOrigin.y() < yMin || rayOrigin.y() > yMax) {
				continue; // horizontal ray passing above or below the cylinder
			}

			if (entryT > exitT) continue;

			//logger() << "[RAYCAST_NPC]   " << npc->entityId() << " hit at t=" << entryT << std::endl;

			if (entryT < closestDist) {
				closestDist = entryT;
				closestNpc = npc.get();
			}
		}

		if (closestNpc) {
			//logger() << "[RAYCAST_NPC] HIT: " << closestNpc->entityId() << std::endl;
		}
		else {
			//logger() << "[RAYCAST_NPC] No NPC hit" << std::endl;
		}

		return closestNpc;
	}


	void Location::drawInstancedStatics(const std::string& instancedShaderName, InstancedTexture textureKind,
	                                    const std::function<void()>& setUniforms)
	{
		if (instancedBatches.empty()) return;

		renderer.shaderManager.PushShader(instancedShaderName);
		if (setUniforms) setUniforms();
		renderer.SetMatrix();

		for (auto& batch : instancedBatches) {
			if (textureKind != InstancedTexture::None) {
				const auto& texture = (textureKind == InstancedTexture::Darklands) ? batch.textureDarklands : batch.texture;
				if (!texture) continue;
				glBindTexture(GL_TEXTURE_2D, texture->getTexID());
			}
			renderer.DrawInstanced(batch);
		}

		renderer.shaderManager.PopShader();
	}

	void Location::setPathVisualizationEnabled(bool enabled)
	{
		pathVisualization.setEnabled(enabled);
	}

	void Location::drawGame()
	{
		auto locationState = stateSnapshot();
		if (!locationState) return;
		auto playerState = player ? player->stateSnapshot() : nullptr;

		glClearColor(0.53, 0.81, 0.92, 1.0f);
		glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);

		renderer.shaderManager.PushShader("fog");
		renderer.RenderUniform1i(textureUniformName, 0);
		const float playerEyePos[3] = { 0.0f, 0.0f, -Environment::zoom };
		renderer.RenderUniform3fv("uPlayerEyePos", playerEyePos);

		renderer.PushPerspectiveProjectionMatrix(1.0 / 1.5,
			static_cast<float>(Environment::width) / static_cast<float>(Environment::height),
			Environment::CONST_Z_NEAR, Environment::CONST_Z_FAR);
		renderer.PushMatrix();

		renderer.LoadIdentity();
		renderer.TranslateMatrix({ 0,0, -1.0f * Environment::zoom });
		//renderer.TranslateMatrix({ 0, -6.f, 0 });

		renderer.RotateMatrix(Eigen::Quaternionf(Eigen::AngleAxisf(localState_->cameraInclination, Eigen::Vector3f::UnitX())).toRotationMatrix());
		renderer.RotateMatrix(Eigen::Quaternionf(Eigen::AngleAxisf(localState_->cameraAzimuth, Eigen::Vector3f::UnitY())).toRotationMatrix());
		const Eigen::Vector3f camTarget =
			player ? player->renderPosition() : Eigen::Vector3f::Zero();
		renderer.TranslateMatrix({ -camTarget.x(), -camTarget.y(), -camTarget.z() });
		renderer.TranslateMatrix({ 0, -1.f, 0 });

		//glBindTexture(GL_TEXTURE_2D, roomTexture->getTexID());
		//renderer.DrawVertexRenderStruct(roomMesh);

		renderer.RenderUniform1f("uAlpha", 1.0f);
		for (auto& [name, gameObj] : gameObjects) {
			if (!gameObj.texture) continue;
			glBindTexture(GL_TEXTURE_2D, gameObj.texture->getTexID());
			renderer.DrawVertexRenderStruct(gameObj.mesh);
		}
		drawInstancedStatics("fog_inst", InstancedTexture::Color, [&]() {
			renderer.RenderUniform1i(textureUniformName, 0);
			renderer.RenderUniform3fv("uPlayerEyePos", playerEyePos);
			renderer.RenderUniform1f("uAlpha", 1.0f);
		});

		for (auto& intObj : interactiveObjects) {
			if (intObj.state.isActive) {
				intObj.draw(renderer);
			}
		}
		renderer.RenderUniform1f("uAlpha", 1.0f);
		const Eigen::Matrix4f currentView = renderer.GetCurrentModelViewMatrix();
		if (player) player->prepareHitSparksForDraw(currentView);
		for (auto& [id, remote] : remotePlayers_)
			if (remote) remote->prepareHitSparksForDraw(currentView);
		for (auto& npc : npcs) npc->prepareHitSparksForDraw(currentView);
		for (auto& tz : teleportZones) tz.prepareForDraw(currentView);

		if (player) player->draw(renderer);
		for (auto& [id, remote] : remotePlayers_)
			if (remote) remote->draw(renderer);
		for (auto& npc : npcs) npc->draw(renderer);

		drawNpcCar();

		for (auto& tz : teleportZones) tz.draw(renderer, Environment::zoom, Environment::width, Environment::height);
		pathVisualization.draw(renderer);

		if (editorMode == EditorMode::Navigation) {
			editor.drawNavigation();
			editor.drawPoints();
		}
		if (editorMode == EditorMode::InteractiveObjects) {
			editor.drawInteractiveObjectBounds();
		}

		renderer.PopMatrix();

		renderer.PopProjectionMatrix();

		renderer.shaderManager.PopShader();

		if (npcNameText) {
			Eigen::Matrix4f proj = MakePerspectiveMatrix(1.0f / 1.5f,
				static_cast<float>(Environment::width) / static_cast<float>(Environment::height),
				Environment::CONST_Z_NEAR, Environment::CONST_Z_FAR);
			drawRemotePlayerNames(currentView, proj);
			for (auto& npc : npcs) {
				if (npc) npc->drawName(*npcNameText, currentView, proj);
			}
			if (player) player->drawHealthBar(renderer, currentView, proj);
			for (auto& npc : npcs) {
				if (npc) npc->drawHealthBar(renderer, currentView, proj);
			}
		}
	}

	void Location::drawShadowDepthPass()
	{
		if (!shadowMap) return;

		auto playerState = player ? player->stateSnapshot() : nullptr;
		const Eigen::Vector3f sceneCenter =
			player ? player->renderPosition() : Eigen::Vector3f::Zero();
		shadowMap->updateLightSpaceMatrix(sceneCenter);

		shadowMap->bind();

		glEnable(GL_DEPTH_TEST);
		glDepthFunc(GL_LESS);

		// Use front-face culling during depth pass to reduce shadow acne on lit faces
		//glCullFace(GL_FRONT);
		glEnable(GL_CULL_FACE);

		renderer.shaderManager.PushShader("shadow_depth");

		// Set up light's orthographic projection
		const Eigen::Matrix4f& lightProj = shadowMap->getLightProjectionMatrix();
		const Eigen::Matrix4f& lightView = shadowMap->getLightViewMatrix();

		// Push the light's projection matrix via the 6-param ortho overload won't
		// match our pre-computed matrix. Instead, use the raw stack approach:
		// push a dummy projection then overwrite via PushSpecialMatrix-style.
		// Simpler: push ortho then push the light view as modelview.
		renderer.PushProjectionMatrix(
			-40.0f, 40.0f,
			-40.0f, 40.0f,
			0.1f, 100.0f);

		const Eigen::Vector3f& lightDir = shadowMap->getLightDirection();
		Eigen::Vector3f lightPos = sceneCenter - lightDir * 50.0f;
		Eigen::Vector3f up(0.0f, 1.0f, 0.0f);
		if (std::abs(lightDir.dot(up)) > 0.99f) {
			up = Eigen::Vector3f(0.0f, 0.0f, 1.0f);
		}

		// Build the light view matrix and push it
		renderer.PushSpecialMatrix(lightView);

		// Draw static geometry
		//renderer.DrawVertexRenderStruct(roomMesh);

		for (auto& [name, gameObj] : gameObjects) {
			renderer.DrawVertexRenderStruct(gameObj.mesh);
		}
		drawInstancedStatics("shadow_depth_inst", InstancedTexture::None);

		for (auto& intObj : interactiveObjects) {
			if (intObj.state.castShadow)
				intObj.drawShadowDepth(renderer);
		}

		// Draw characters (they handle their own skinning shader switch internally)
		if (player) player->drawShadowDepth(renderer);
		for (auto& [id, remote] : remotePlayers_)
			if (remote) remote->drawShadowDepth(renderer);
		for (auto& npc : npcs) npc->drawShadowDepth(renderer);

		drawNpcCar();

		renderer.PopMatrix();  // light view
		renderer.PopProjectionMatrix();
		renderer.shaderManager.PopShader();

		//glCullFace(GL_BACK);
		glDisable(GL_CULL_FACE);

		shadowMap->unbind();
	}

	void Location::drawGameWithShadows()
	{
		auto locationState = stateSnapshot();
		if (!locationState) return;
		glClearColor(0.53, 0.81, 0.92, 1.0f);
		glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);

#ifdef DEBUG_LIGHT
		// Debug mode: render from the light's point of view using the plain
		// textured shader so we can see what the shadow map "sees".
		renderer.shaderManager.PushShader(defaultShaderName);
		renderer.RenderUniform1i(textureUniformName, 0);

		renderer.PushProjectionMatrix(
			-40.0f, 40.0f,
			-40.0f, 40.0f,
			0.1f, 1000.0f);

		renderer.PushSpecialMatrix(shadowMap->getLightViewMatrix());

#else
		static const std::string shadowShaderName = "fog_shadow";

		renderer.shaderManager.PushShader(shadowShaderName);
		renderer.RenderUniform1i(textureUniformName, 0);
		renderer.RenderUniform1i("uShadowMap", 1);
		const float playerEyePos[3] = { 0.0f, 0.0f, -Environment::zoom };
		renderer.RenderUniform3fv("uPlayerEyePos", playerEyePos);

		// Bind shadow map texture to unit 1
		glActiveTexture(GL_TEXTURE1);
		glBindTexture(GL_TEXTURE_2D, shadowMap->getDepthTexture());
		glActiveTexture(GL_TEXTURE0);

		renderer.PushPerspectiveProjectionMatrix(1.0 / 1.5,
			static_cast<float>(Environment::width) / static_cast<float>(Environment::height),
			Environment::CONST_Z_NEAR, Environment::CONST_Z_FAR);
		renderer.PushMatrix();

		renderer.LoadIdentity();
		renderer.TranslateMatrix({ 0,0, -1.0f * Environment::zoom });

		renderer.RotateMatrix(Eigen::Quaternionf(Eigen::AngleAxisf(localState_->cameraInclination, Eigen::Vector3f::UnitX())).toRotationMatrix());
		renderer.RotateMatrix(Eigen::Quaternionf(Eigen::AngleAxisf(localState_->cameraAzimuth, Eigen::Vector3f::UnitY())).toRotationMatrix());
		auto playerState = player ? player->stateSnapshot() : nullptr;
		const Eigen::Vector3f camTarget =
			player ? player->renderPosition() : Eigen::Vector3f::Zero();
		renderer.TranslateMatrix({ -camTarget.x(), -camTarget.y(), -camTarget.z() });
		renderer.TranslateMatrix({ 0, -1.f, 0 });


		// Capture the camera view matrix and compute uLightFromCamera
		cameraViewMatrix = renderer.GetCurrentModelViewMatrix();
		Eigen::Matrix4f cameraViewInverse = cameraViewMatrix.inverse();
		Eigen::Matrix4f lightFromCamera = shadowMap->getLightSpaceMatrix() * cameraViewInverse;
		renderer.RenderUniformMatrix4fv("uLightFromCamera", false, lightFromCamera.data());

		// Light direction in camera space for diffuse lighting
		Eigen::Vector3f lightDirCamera = cameraViewMatrix.block<3, 3>(0, 0) * shadowMap->getLightDirection();
		renderer.RenderUniform3fv("uLightDir", lightDirCamera.data());
#endif

		CheckGlError(__FILE__, __LINE__);
		//glBindTexture(GL_TEXTURE_2D, roomTexture->getTexID());
		//renderer.DrawVertexRenderStruct(roomMesh);

		CheckGlError(__FILE__, __LINE__);
		renderer.RenderUniform1f("uAlpha", 1.0f);
		for (auto& [name, gameObj] : gameObjects) {
			if (!gameObj.texture) continue;
			glBindTexture(GL_TEXTURE_2D, gameObj.texture->getTexID());
			renderer.DrawVertexRenderStruct(gameObj.mesh);
		}
#ifndef DEBUG_LIGHT
		drawInstancedStatics("fog_shadow_inst", InstancedTexture::Color, [&]() {
			renderer.RenderUniform1i(textureUniformName, 0);
			renderer.RenderUniform1i("uShadowMap", 1);
			renderer.RenderUniform3fv("uPlayerEyePos", playerEyePos);
			renderer.RenderUniformMatrix4fv("uLightFromCamera", false, lightFromCamera.data());
			renderer.RenderUniform3fv("uLightDir", lightDirCamera.data());
			renderer.RenderUniform1f("uAlpha", 1.0f);
		});
#endif

		CheckGlError(__FILE__, __LINE__);
		for (auto& intObj : interactiveObjects) {
			if (intObj.state.isActive) {
				intObj.draw(renderer);
			}
		}
		CheckGlError(__FILE__, __LINE__);


#ifdef DEBUG_LIGHT
		// In debug-light mode characters use the plain shaders (draw normally
		// but from the light's viewpoint — projection/view already on stack).
		{
			const Eigen::Matrix4f currentView = renderer.GetCurrentModelViewMatrix();
			if (player) player->prepareHitSparksForDraw(currentView);
			for (auto& [id, remote] : remotePlayers_)
				if (remote) remote->prepareHitSparksForDraw(currentView);
			for (auto& npc : npcs) npc->prepareHitSparksForDraw(currentView);
		}
		if (player) player->draw(renderer);
		for (auto& [id, remote] : remotePlayers_)
			if (remote) remote->draw(renderer);
		for (auto& npc : npcs) npc->draw(renderer);
		drawNpcCar();
#else
		// Characters use their own shadow-aware shaders
		CheckGlError(__FILE__, __LINE__);

		if (player) player->prepareHitSparksForDraw(cameraViewMatrix);
		for (auto& [id, remote] : remotePlayers_)
			if (remote) remote->prepareHitSparksForDraw(cameraViewMatrix);
		for (auto& npc : npcs) npc->prepareHitSparksForDraw(cameraViewMatrix);
		for (auto& tz : teleportZones) tz.prepareForDraw(cameraViewMatrix);

		if (player) player->drawWithShadow(renderer, lightFromCamera, shadowMap->getDepthTexture(), lightDirCamera);
		CheckGlError(__FILE__, __LINE__);

		for (auto& [id, remote] : remotePlayers_)
			if (remote) remote->drawWithShadow(
				renderer, lightFromCamera, shadowMap->getDepthTexture(), lightDirCamera);
		for (auto& npc : npcs) npc->drawWithShadow(renderer, lightFromCamera, shadowMap->getDepthTexture(), lightDirCamera);

		drawNpcCar();

		for (auto& tz : teleportZones) tz.draw(renderer, Environment::zoom, Environment::width, Environment::height);
#endif
		pathVisualization.draw(renderer);

		if (editorMode == EditorMode::Navigation) {
			editor.drawNavigation();
			editor.drawPoints();
		}
		if (editorMode == EditorMode::InteractiveObjects) {
			editor.drawInteractiveObjectBounds();
		}

		CheckGlError(__FILE__, __LINE__);

		renderer.PopMatrix();
		renderer.PopProjectionMatrix();
		renderer.shaderManager.PopShader();

		if (npcNameText) {
			Eigen::Matrix4f proj = MakePerspectiveMatrix(1.0f / 1.5f,
				static_cast<float>(Environment::width) / static_cast<float>(Environment::height),
				Environment::CONST_Z_NEAR, Environment::CONST_Z_FAR);
			drawRemotePlayerNames(cameraViewMatrix, proj);
			for (auto& npc : npcs) {
				if (npc) npc->drawName(*npcNameText, cameraViewMatrix, proj);
			}
			if (player) player->drawHealthBar(renderer, cameraViewMatrix, proj);
			for (auto& npc : npcs) {
				if (npc) npc->drawHealthBar(renderer, cameraViewMatrix, proj);
			}
		}
	}

	void Location::drawGameDarklands()
	{
		auto locationState = stateSnapshot();
		if (!locationState) return;
		auto playerState = player ? player->stateSnapshot() : nullptr;
		glClearColor(0.05f, 0.05f, 0.2f, 1.0f);
		glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);

		renderer.shaderManager.PushShader("darklands_fog");
		renderer.RenderUniform1i(textureUniformName, 0);
		const float playerEyePos[3] = { 0.0f, 0.0f, -Environment::zoom };
		renderer.RenderUniform3fv("uPlayerEyePos", playerEyePos);

		renderer.PushPerspectiveProjectionMatrix(1.0 / 1.5,
			static_cast<float>(Environment::width) / static_cast<float>(Environment::height),
			Environment::CONST_Z_NEAR, Environment::CONST_Z_FAR);
		renderer.PushMatrix();

		renderer.LoadIdentity();
		renderer.TranslateMatrix({ 0, 0, -1.0f * Environment::zoom });

		renderer.RotateMatrix(Eigen::Quaternionf(Eigen::AngleAxisf(localState_->cameraInclination, Eigen::Vector3f::UnitX())).toRotationMatrix());
		renderer.RotateMatrix(Eigen::Quaternionf(Eigen::AngleAxisf(localState_->cameraAzimuth, Eigen::Vector3f::UnitY())).toRotationMatrix());
		const Eigen::Vector3f camTarget =
			player ? player->renderPosition() : Eigen::Vector3f::Zero();
		renderer.TranslateMatrix({ -camTarget.x(), -camTarget.y(), -camTarget.z() });
		renderer.TranslateMatrix({ 0, -1.f, 0 });

		renderer.RenderUniform1f("uAlpha", 1.0f);
		for (auto& [name, gameObj] : gameObjects) {
			if (!gameObj.textureDarklands) continue;
			glBindTexture(GL_TEXTURE_2D, gameObj.textureDarklands->getTexID());
			renderer.DrawVertexRenderStruct(gameObj.mesh);
		}
		drawInstancedStatics("darklands_fog_inst", InstancedTexture::Darklands, [&]() {
			renderer.RenderUniform1i(textureUniformName, 0);
			renderer.RenderUniform3fv("uPlayerEyePos", playerEyePos);
			renderer.RenderUniform1f("uAlpha", 1.0f);
		});

		for (auto& intObj : interactiveObjects) {
			if (intObj.state.isActive) {
				intObj.drawDarklands(renderer);
			}
		}
		renderer.RenderUniform1f("uAlpha", 1.0f);
		const Eigen::Matrix4f currentView = renderer.GetCurrentModelViewMatrix();
		if (player) player->prepareHitSparksForDraw(currentView);
		for (auto& [id, remote] : remotePlayers_)
			if (remote) remote->prepareHitSparksForDraw(currentView);
		for (auto& npc : npcs) npc->prepareHitSparksForDraw(currentView);
		for (auto& tz : teleportZones) tz.prepareForDraw(currentView);

		if (player) player->draw(renderer);
		for (auto& [id, remote] : remotePlayers_)
			if (remote) remote->draw(renderer);
		for (auto& npc : npcs) npc->draw(renderer);

		//drawNpcCar();

		for (auto& tz : teleportZones) tz.draw(renderer, Environment::zoom, Environment::width, Environment::height);
		pathVisualization.draw(renderer);

		if (editorMode == EditorMode::Navigation) {
			editor.drawNavigation();
			editor.drawPoints();
		}
		if (editorMode == EditorMode::InteractiveObjects) {
			editor.drawInteractiveObjectBounds();
		}

		renderer.PopMatrix();
		renderer.PopProjectionMatrix();
		renderer.shaderManager.PopShader();

		if (npcNameText) {
			Eigen::Matrix4f proj = MakePerspectiveMatrix(1.0f / 1.5f,
				static_cast<float>(Environment::width) / static_cast<float>(Environment::height),
				Environment::CONST_Z_NEAR, Environment::CONST_Z_FAR);
			drawRemotePlayerNames(currentView, proj);
			for (auto& npc : npcs) {
				if (npc) npc->drawName(*npcNameText, currentView, proj);
			}
			if (player) player->drawHealthBar(renderer, currentView, proj);
			for (auto& npc : npcs) {
				if (npc) npc->drawHealthBar(renderer, currentView, proj);
			}
		}
	}

	void Location::drawNightShadowDepthPass(const PointLight& light)
	{
		if (!shadowMap) return;
		static constexpr float kSpotFovY = static_cast<float>(M_PI) * 0.5f; // 90°
		shadowMap->updateSpotlightMatrix(light.position, light.direction, kSpotFovY, 0.1f, 20.0f);
		shadowMap->bind();

		glEnable(GL_DEPTH_TEST);
		glDepthFunc(GL_LESS);
		glEnable(GL_CULL_FACE);

		renderer.shaderManager.PushShader("shadow_depth");
		renderer.PushPerspectiveProjectionMatrix(kSpotFovY, 1.0f, 0.1f, 20.0f);
		renderer.PushSpecialMatrix(shadowMap->getLightViewMatrix());

		for (auto& [name, gameObj] : gameObjects) {
			renderer.DrawVertexRenderStruct(gameObj.mesh);
		}
		drawInstancedStatics("shadow_depth_inst", InstancedTexture::None);
		for (auto& intObj : interactiveObjects) {
			if (intObj.state.castShadowNight)
				intObj.drawShadowDepth(renderer);
		}
		if (player) player->drawShadowDepth(renderer);
		for (auto& [id, remote] : remotePlayers_)
			if (remote) remote->drawShadowDepth(renderer);
		for (auto& npc : npcs) npc->drawShadowDepth(renderer);

		drawNpcCar();

		renderer.PopMatrix();  // light view
		renderer.PopProjectionMatrix();
		renderer.shaderManager.PopShader();

		glDisable(GL_CULL_FACE);
		shadowMap->unbind();
	}

	void Location::captureNpcCarPresentation(const NpcCar& car)
	{
		NpcCarPresentationSample sample;
		sample.position = car.position;
		sample.rotation = car.rotation;
		sample.wheelAngle = car.wheelAngle;
		sample.steeringAngle = car.steeringAngle;

		const auto now = std::chrono::steady_clock::now();
		const bool largeGap = hasNpcCarPresentationSample_ &&
			std::chrono::duration_cast<std::chrono::milliseconds>(
				now - lastNpcCarPresentationUpdate_).count() > 250;
		if (!hasNpcCarPresentationSample_ || largeGap) {
			previousNpcCarPresentation_ = sample;
		} else {
			previousNpcCarPresentation_ = currentNpcCarPresentation_;
		}
		currentNpcCarPresentation_ = sample;
		lastNpcCarPresentationUpdate_ = now;
		hasNpcCarPresentationSample_ = true;
	}

	Location::NpcCarPresentationSample
	Location::interpolatedNpcCarPresentation(const NpcCar& car) const
	{
		NpcCarPresentationSample result;
		result.position = car.position;
		result.rotation = car.rotation;
		result.wheelAngle = car.wheelAngle;
		result.steeringAngle = car.steeringAngle;
		if (!hasNpcCarPresentationSample_) return result;

		constexpr float kSimulationTickMs = 100.0f;
		const float elapsedMs = static_cast<float>(
			std::chrono::duration_cast<std::chrono::milliseconds>(
				std::chrono::steady_clock::now() - lastNpcCarPresentationUpdate_).count());
		const float alpha = (std::max)(0.0f,
			(std::min)(1.0f, elapsedMs / kSimulationTickMs));

		result.position = previousNpcCarPresentation_.position +
			alpha * (currentNpcCarPresentation_.position -
				previousNpcCarPresentation_.position);
		result.wheelAngle = previousNpcCarPresentation_.wheelAngle +
			alpha * (currentNpcCarPresentation_.wheelAngle -
				previousNpcCarPresentation_.wheelAngle);
		result.steeringAngle = previousNpcCarPresentation_.steeringAngle +
			alpha * (currentNpcCarPresentation_.steeringAngle -
				previousNpcCarPresentation_.steeringAngle);

		constexpr float kPi = 3.14159265358979323846f;
		constexpr float kTwoPi = 2.0f * kPi;
		float rotationDelta = currentNpcCarPresentation_.rotation -
			previousNpcCarPresentation_.rotation;
		while (rotationDelta > kPi) rotationDelta -= kTwoPi;
		while (rotationDelta < -kPi) rotationDelta += kTwoPi;
		result.rotation = previousNpcCarPresentation_.rotation + alpha * rotationDelta;
		return result;
	}

	void Location::drawNpcCar()
	{
		auto locationState = stateSnapshot();
		if (!locationState) return;
		const NpcCarPresentationSample car =
			interpolatedNpcCarPresentation(locationState->taxiCar);
		renderer.PushMatrix();
		renderer.TranslateMatrix(car.position);
		renderer.TranslateMatrix({ 0, 0.7f - 0.25f +x, 0 });
		renderer.RotateMatrix(Eigen::Quaternionf(Eigen::AngleAxisf(car.rotation, Eigen::Vector3f::UnitY())).toRotationMatrix());
		glBindTexture(GL_TEXTURE_2D, carTexture->getTexID());
		renderer.DrawVertexRenderStruct(carMesh);

		if (carWheelTexture) {
			constexpr float track_width = 1.28f * CONST_TAXI_CAR_SCALE;
			constexpr float wheel_base = 2.25f * CONST_TAXI_CAR_SCALE;
			constexpr float shift = 0.6f * CONST_TAXI_CAR_SCALE;
			const Eigen::Vector3f wheelPositions[4] = {
				Eigen::Vector3f(track_width, 0.f - 0.21f, -(wheel_base + shift) + 1.25f * CONST_TAXI_CAR_SCALE),
				Eigen::Vector3f(-track_width, 0.f - 0.21f, -(wheel_base + shift) + 1.25f * CONST_TAXI_CAR_SCALE),
				Eigen::Vector3f(track_width, 0.f - 0.21f,  (wheel_base - shift) + 1.1f * CONST_TAXI_CAR_SCALE),
				Eigen::Vector3f(-track_width, 0.f - 0.21f,  (wheel_base - shift) + 1.1f * CONST_TAXI_CAR_SCALE)
			};
			const bool isFront[4] = { true, true, false, false };

			glBindTexture(GL_TEXTURE_2D, carWheelTexture->getTexID());
			for (int i = 0; i < 4; ++i) {
				renderer.PushMatrix();
				renderer.TranslateMatrix(wheelPositions[i]);
				renderer.RotateMatrix(Eigen::Quaternionf(Eigen::AngleAxisf(car.wheelAngle, -Eigen::Vector3f::UnitX())).toRotationMatrix());

				if (isFront[i]) {
					renderer.RotateMatrix(Eigen::Quaternionf(Eigen::AngleAxisf(car.steeringAngle, Eigen::Vector3f::UnitY())).toRotationMatrix());
				}
				renderer.DrawVertexRenderStruct(carWheelMesh);
				renderer.PopMatrix();
			}
		}

		renderer.PopMatrix();
	}

	void Location::drawGameNight()
	{
		auto locationState = stateSnapshot();
		if (!locationState) return;
		auto gameSnapshot = gameServer_.snapshot();
		if (!gameSnapshot) return;
		auto playerState = player ? player->stateSnapshot() : nullptr;
		// --- Determine which lights are active this frame ---
		// autoLight=true lights only activate when they are the nearest light to the player.
		// autoLight=false lights are always active.
		int nearestLightIdx = -1;
		if (playerState && !pointLights.empty()) {
			float minDist = FLT_MAX;
			for (int i = 0; i < static_cast<int>(pointLights.size()); ++i) {
				const float d = (pointLights[i].position - playerState->position).norm();
				if (d < minDist) { minDist = d; nearestLightIdx = i; }
			}
		}

		static constexpr int MAX_POINT_LIGHTS = 4;
		std::vector<int> activeLightIndices;
		activeLightIndices.reserve(pointLights.size());
		for (int i = 0; i < static_cast<int>(pointLights.size()); ++i) {
			const PointLight& pl = pointLights[i];
			bool active = !pl.autoLight;
			if (!active && playerState) {
				if (pl.autoLightLimitX > 0.0f && pl.autoLightLimitY > 0.0f) {
					// Rectangular activation zone — independent of nearest-light heuristic
					const float dx = std::abs(playerState->position.x() - pl.position.x());
					const float dz = std::abs(playerState->position.z() - pl.position.z());
					active = (dx <= pl.autoLightLimitX && dz <= pl.autoLightLimitY);
				} else {
					// only the nearest autoLight activates, with optional distance cap
					const float dist = (pl.position - playerState->position).norm();
					active = (i == nearestLightIdx) &&
					         (pl.autoLightDistance <= 0.0f || dist <= pl.autoLightDistance);
				}
			}
			if (active) {
				activeLightIndices.push_back(i);
				if (static_cast<int>(activeLightIndices.size()) >= MAX_POINT_LIGHTS) break;
			}
		}

		// Shadow caster = nearest active light to player
		const PointLight* shadowLight = nullptr;
		if (playerState && !activeLightIndices.empty()) {
			float minDist = FLT_MAX;
			for (int idx : activeLightIndices) {
				const float d = (pointLights[idx].position - playerState->position).norm();
				if (d < minDist) { minDist = d; shadowLight = &pointLights[idx]; }
			}
		}
		const bool hasShadows = (shadowMap != nullptr && shadowLight != nullptr);

		// Ambient and fog color: different for plain night vs dawn
		static const float kNightAmbient[3] = { 0.37f, 0.37f, 0.37f };
		static const float kDawnAmbient[3]  = { 0.72f, 0.52f, 0.62f };  // brighter warm pink
		static const float kNightFogColor[3] = { 0.01f, 0.01f, 0.05f };
		static const float kDawnFogColor[3]  = { 0.50f, 0.44f, 0.47f };  // grey with slight pink
		const float* ambientColor = gameSnapshot->isDawn ? kDawnAmbient : kNightAmbient;
		const float* fogColor     = gameSnapshot->isDawn ? kDawnFogColor : kNightFogColor;

		if (hasShadows) {
			drawNightShadowDepthPass(*shadowLight);
		}

		// --- Main render pass ---
		glClearColor(0.01f, 0.01f, 0.05f, 1.0f);
		glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);

		const std::string mainShader = hasShadows ? "night_fog_shadow" : "night_fog";
		renderer.shaderManager.PushShader(mainShader);
		renderer.RenderUniform1i(textureUniformName, 0);

		if (hasShadows) {
			renderer.RenderUniform1i("uShadowMap", 1);
			glActiveTexture(GL_TEXTURE1);
			glBindTexture(GL_TEXTURE_2D, shadowMap->getDepthTexture());
			glActiveTexture(GL_TEXTURE0);
		}

		const float playerEyePos[3] = { 0.0f, 0.0f, -Environment::zoom };
		renderer.RenderUniform3fv("uPlayerEyePos", playerEyePos);
		renderer.RenderUniform3fv("uAmbientColor", ambientColor);
		renderer.RenderUniform3fv("uFogColor", fogColor);

		renderer.PushPerspectiveProjectionMatrix(1.0 / 1.5,
			static_cast<float>(Environment::width) / static_cast<float>(Environment::height),
			Environment::CONST_Z_NEAR, Environment::CONST_Z_FAR);
		renderer.PushMatrix();

		renderer.LoadIdentity();
		renderer.TranslateMatrix({ 0, 0, -1.0f * Environment::zoom });

		renderer.RotateMatrix(Eigen::Quaternionf(Eigen::AngleAxisf(localState_->cameraInclination, Eigen::Vector3f::UnitX())).toRotationMatrix());
		renderer.RotateMatrix(Eigen::Quaternionf(Eigen::AngleAxisf(localState_->cameraAzimuth, Eigen::Vector3f::UnitY())).toRotationMatrix());
		const Eigen::Vector3f camTarget =
			player ? player->renderPosition() : Eigen::Vector3f::Zero();
		renderer.TranslateMatrix({ -camTarget.x(), -camTarget.y(), -camTarget.z() });
		renderer.TranslateMatrix({ 0, -1.f, 0 });

		cameraViewMatrix = renderer.GetCurrentModelViewMatrix();

		// Transform active spot lights to eye space and build uniform arrays
		float plPosEye[MAX_POINT_LIGHTS * 3] = {};
		float plDirEye[MAX_POINT_LIGHTS * 3] = {};
		float plColors[MAX_POINT_LIGHTS * 3] = {};
		float plWorldXZ[MAX_POINT_LIGHTS * 2] = {};
		float plLimitXZ[MAX_POINT_LIGHTS * 2] = {};
		const Eigen::Matrix3f camRot = cameraViewMatrix.block<3, 3>(0, 0);
		const int lightCount = static_cast<int>(activeLightIndices.size());
		for (int j = 0; j < lightCount; ++j) {
			const PointLight& pl = pointLights[activeLightIndices[j]];
			const Eigen::Vector4f worldPos(pl.position.x(), pl.position.y(), pl.position.z(), 1.0f);
			const Eigen::Vector4f eyePos4 = cameraViewMatrix * worldPos;
			plPosEye[j * 3 + 0] = eyePos4.x();
			plPosEye[j * 3 + 1] = eyePos4.y();
			plPosEye[j * 3 + 2] = eyePos4.z();
			const Eigen::Vector3f eyeDir = camRot * pl.direction;
			plDirEye[j * 3 + 0] = eyeDir.x();
			plDirEye[j * 3 + 1] = eyeDir.y();
			plDirEye[j * 3 + 2] = eyeDir.z();
			plColors[j * 3 + 0] = pl.color.x();
			plColors[j * 3 + 1] = pl.color.y();
			plColors[j * 3 + 2] = pl.color.z();
			plWorldXZ[j * 2 + 0] = pl.position.x();
			plWorldXZ[j * 2 + 1] = pl.position.z();
			plLimitXZ[j * 2 + 0] = pl.limitX;
			plLimitXZ[j * 2 + 1] = pl.limitY;
		}

		// Compute camera view inverse (needed for shadow lookup and skinning world-pos recovery)
		const Eigen::Matrix4f cameraViewInverse = cameraViewMatrix.inverse();

		// Compute light-from-camera matrix for shadow lookup
		Eigen::Matrix4f lightFromCamera = Eigen::Matrix4f::Identity();
		if (hasShadows) {
			lightFromCamera = shadowMap->getLightSpaceMatrix() * cameraViewInverse;
			renderer.RenderUniformMatrix4fv("uLightFromCamera", false, lightFromCamera.data());
			// Pass first active light's eye-space direction as uLightDir for shadow bias
			renderer.RenderUniform3fv("uLightDir", plDirEye);
		}

		renderer.RenderUniform1i("uPointLightCount", lightCount);
		if (lightCount > 0) {
			renderer.RenderUniform3fvArray("uPointLightPos[0]", lightCount, plPosEye);
			renderer.RenderUniform3fvArray("uPointLightDir[0]", lightCount, plDirEye);
			renderer.RenderUniform3fvArray("uPointLightColor[0]", lightCount, plColors);
			renderer.RenderUniform2fvArray("uPointLightWorldXZ[0]", lightCount, plWorldXZ);
			renderer.RenderUniform2fvArray("uPointLightLimitXZ[0]", lightCount, plLimitXZ);
		}

		renderer.RenderUniform1f("uAlpha", 1.0f);
		for (auto& [name, gameObj] : gameObjects) {
			if (!gameObj.texture) continue;
			glBindTexture(GL_TEXTURE_2D, gameObj.texture->getTexID());
			renderer.DrawVertexRenderStruct(gameObj.mesh);
		}
		drawInstancedStatics(hasShadows ? "night_fog_shadow_inst" : "night_fog_inst", InstancedTexture::Color, [&]() {
			renderer.RenderUniform1i(textureUniformName, 0);
			if (hasShadows) {
				renderer.RenderUniform1i("uShadowMap", 1);
				renderer.RenderUniformMatrix4fv("uLightFromCamera", false, lightFromCamera.data());
				renderer.RenderUniform3fv("uLightDir", plDirEye);
			}
			renderer.RenderUniform3fv("uPlayerEyePos", playerEyePos);
			renderer.RenderUniform3fv("uAmbientColor", ambientColor);
			renderer.RenderUniform3fv("uFogColor", fogColor);
			renderer.RenderUniform1i("uPointLightCount", lightCount);
			if (lightCount > 0) {
				renderer.RenderUniform3fvArray("uPointLightPos[0]", lightCount, plPosEye);
				renderer.RenderUniform3fvArray("uPointLightDir[0]", lightCount, plDirEye);
				renderer.RenderUniform3fvArray("uPointLightColor[0]", lightCount, plColors);
				renderer.RenderUniform2fvArray("uPointLightWorldXZ[0]", lightCount, plWorldXZ);
				renderer.RenderUniform2fvArray("uPointLightLimitXZ[0]", lightCount, plLimitXZ);
			}
			renderer.RenderUniform1f("uAlpha", 1.0f);
		});

		for (auto& intObj : interactiveObjects) {
			if (intObj.state.isActive) {
				intObj.draw(renderer);
			}
		}

		renderer.RenderUniform1f("uAlpha", 1.0f);
		if (player) player->prepareHitSparksForDraw(cameraViewMatrix);
		for (auto& [id, remote] : remotePlayers_)
			if (remote) remote->prepareHitSparksForDraw(cameraViewMatrix);
		for (auto& npc : npcs) npc->prepareHitSparksForDraw(cameraViewMatrix);
		for (auto& tz : teleportZones) tz.prepareForDraw(cameraViewMatrix);

		if (hasShadows) {
			if (player) player->drawNightWithShadow(renderer, plPosEye, plDirEye, plColors, lightCount,
				plWorldXZ, plLimitXZ, cameraViewInverse,
				lightFromCamera, shadowMap->getDepthTexture(), ambientColor, fogColor);
			for (auto& [id, remote] : remotePlayers_)
				if (remote) remote->drawNightWithShadow(
					renderer, plPosEye, plDirEye, plColors, lightCount,
					plWorldXZ, plLimitXZ, cameraViewInverse,
					lightFromCamera, shadowMap->getDepthTexture(), ambientColor, fogColor);
			for (auto& npc : npcs) npc->drawNightWithShadow(renderer, plPosEye, plDirEye, plColors, lightCount,
				plWorldXZ, plLimitXZ, cameraViewInverse,
				lightFromCamera, shadowMap->getDepthTexture(), ambientColor, fogColor);
		} else {
			if (player) player->drawNight(renderer, plPosEye, plDirEye, plColors, lightCount,
				plWorldXZ, plLimitXZ, cameraViewInverse, ambientColor, fogColor);
			for (auto& [id, remote] : remotePlayers_)
				if (remote) remote->drawNight(
					renderer, plPosEye, plDirEye, plColors, lightCount,
					plWorldXZ, plLimitXZ, cameraViewInverse, ambientColor, fogColor);
			for (auto& npc : npcs) npc->drawNight(renderer, plPosEye, plDirEye, plColors, lightCount,
				plWorldXZ, plLimitXZ, cameraViewInverse, ambientColor, fogColor);
		}

		drawNpcCar();

		for (auto& tz : teleportZones) tz.draw(renderer, Environment::zoom, Environment::width, Environment::height);
		pathVisualization.draw(renderer);

		if (editorMode == EditorMode::Navigation) {
			editor.drawNavigation();
			editor.drawPoints();
		}
		if (editorMode == EditorMode::InteractiveObjects) {
			editor.drawInteractiveObjectBounds();
		}

		renderer.PopMatrix();
		renderer.PopProjectionMatrix();
		renderer.shaderManager.PopShader();

		if (npcNameText) {
			Eigen::Matrix4f proj = MakePerspectiveMatrix(1.0f / 1.5f,
				static_cast<float>(Environment::width) / static_cast<float>(Environment::height),
				Environment::CONST_Z_NEAR, Environment::CONST_Z_FAR);
			drawRemotePlayerNames(cameraViewMatrix, proj);
			for (auto& npc : npcs) {
				if (npc) npc->drawName(*npcNameText, cameraViewMatrix, proj);
			}
			if (player) player->drawHealthBar(renderer, cameraViewMatrix, proj);
			for (auto& npc : npcs) {
				if (npc) npc->drawHealthBar(renderer, cameraViewMatrix, proj);
			}
		}
	}

	bool Location::setNavigationAreaAvailable(const std::string& areaName, bool available)
	{
		auto state = stateSnapshot();
		if (!state || state->activeNavigationIndex < 0 ||
			state->activeNavigationIndex >= static_cast<int>(state->navigationMaps.size())) {
			return false;
		}
		const auto& areas =
			state->navigationMaps[state->activeNavigationIndex].getAreas();
		const bool found = std::any_of(
			areas.begin(), areas.end(),
			[&](const PathFinder::NavigationArea& area) {
				return area.name == areaName;
			});
		if (!found) return false;
		gameServer_.submit(SetNavigationAreaAvailableCommand{
			locationId_, areaName, available});
		return true;
	}

	void Location::nudgeCharacterAside(Character* standing, const Eigen::Vector3f& awayFrom)
	{
		auto standingState = standing ? standing->stateSnapshot() : nullptr;
		if (!standingState || standingState->isPlayer) return;
		auto locationState = stateSnapshot();
		if (!locationState || locationState->activeNavigationIndex < 0 ||
			locationState->activeNavigationIndex >=
				static_cast<int>(locationState->navigationMaps.size())) return;
		const PathFinder& navigation =
			locationState->navigationMaps[locationState->activeNavigationIndex];
		if (navigation.isReady()) return;

		static constexpr float kNudgeDist = 1.2f;

		Eigen::Vector3f dir = standingState->position - awayFrom;
		dir.y() = 0.f;
		if (dir.norm() < 1e-3f) dir = Eigen::Vector3f(1.f, 0.f, 0.f);
		else dir.normalize();

		const float angles[] = { 0.f, static_cast<float>(M_PI * 0.5), static_cast<float>(-M_PI * 0.5), static_cast<float>(M_PI) };
		for (float angle : angles) {
			Eigen::Vector3f rotated = Eigen::AngleAxisf(angle, Eigen::Vector3f::UnitY()) * dir;
			Eigen::Vector3f candidate = standingState->position + rotated * kNudgeDist;
			candidate.y() = 0.f;
			if (navigation.isWalkable(candidate)) {
				setCharacterTarget(*standing, candidate);
				return;
			}
		}
	}

	void Location::update(int64_t delta, const LocationSimulationEvents& events)
	{
		synchronizeRemotePlayers();
		auto locationState = stateSnapshot();
		if (!locationState) return;
		auto gameSnapshot = gameServer_.snapshot();
		if (!gameSnapshot) return;
		captureNpcCarPresentation(locationState->taxiCar);
		if (events.taxiArrived)
			scriptEngine.callCallTaxiCallback();

		for (const InteractiveObjectSimulationEvent& event : events.interactiveObjects) {
			try {
				if (!event.animationCompleteFunctionName.empty())
					scriptEngine.callFunction(event.animationCompleteFunctionName);
				if (event.activated) {
					if (!event.activateFunctionName.empty())
						scriptEngine.callActivateFunction(event.activateFunctionName);
					else
						scriptEngine.callItemPickupCallback(event.objectId);
				}
			} catch (const std::exception& e) {
				std::cerr << "[interactive object] callback error: "
					<< e.what() << "\n";
			}
		}
		if (!events.npcInteractionId.empty()) {
			try {
				scriptEngine.callNpcInteractCallback(events.npcInteractionId);
			} catch (const std::exception& e) {
				std::cerr << "[NPC] callback error: " << e.what() << std::endl;
			}
		}

		auto findRuntimeCharacter = [&](const std::string& id) -> Character* {
			if (id == gameServer_.localPlayerId()) return player.get();
			auto remote = remotePlayers_.find(id);
			if (remote != remotePlayers_.end()) return remote->second.get();
			for (auto& npc : npcs)
				if (npc && npc->entityId() == id) return npc.get();
			return nullptr;
		};

		for (const CharacterSimulationEvent& event : events.characters) {
			Character* character = findRuntimeCharacter(event.characterId);
			if (!event.events.arrivedCallbackName.empty()) {
				try {
					scriptEngine.callFunction(event.events.arrivedCallbackName);
				} catch (const std::exception& e) {
					std::cerr << "[script] arrival callback error: " << e.what() << "\n";
				}
			}
		}
		for (const CharacterDamageEvent& event : events.damage) {
			Character* target = findRuntimeCharacter(event.targetId);
			if (target)
				target->presentDamage(
					event.hp, event.maxHp, event.direction, event.attackerId);
		}

		auto eventFor = [&](const std::string& id) -> const CharacterUpdateEvents* {
			for (const CharacterSimulationEvent& event : events.characters)
				if (event.characterId == id) return &event.events;
			return nullptr;
		};

		if (player) {
			player->update(delta, eventFor(gameServer_.localPlayerId()));
			auto playerState = player->stateSnapshot();
			if (playerState) updateTriggerZones(playerState->position);
		}
		for (auto& [id, remote] : remotePlayers_)
			if (remote) remote->update(delta, eventFor(id));

		bool npcAttacking = false;

		for (auto& npc : npcs)
		{
			npc->update(delta, eventFor(npc->entityId()));

			auto npcState = npc->stateSnapshot();
			if (npcState && npcState->enabled && npcState->canAttack &&
				(!npcState->pathWaypoints.empty() || npcState->battle_state != 0) &&
				npcState->hp > 0.f)
			{
				npcAttacking = true;
			}
		}

		if (gameSnapshot->isDarklands)
		{
			if (npcAttacking && !playBattleMusic)
			{
				playBattleMusic = true;
				if (requestDarklandsPlayBattleMusic) requestDarklandsPlayBattleMusic();
			}
			else if (!npcAttacking && playBattleMusic)
			{
				playBattleMusic = false;
				if (requestDarklandsPlayNormalMusic) requestDarklandsPlayNormalMusic();
			}
		}

		auto playerState = player ? player->stateSnapshot() : nullptr;
		if (auto* tz = getTargetTeleportZone(*locationState); tz && playerState) {
			float dist = (playerState->position - tz->position).norm();
			if (dist <= tz->radius) {
				logger() << "[TELEPORT] Player reached teleport zone '" << tz->id << "'" << std::endl;
				gameServer_.submit(SetLocationTargetsCommand{
					locationId_,
					locationState->targetInteractiveObjectId,
					locationState->targetInteractNpcId,
					std::string()});
				if (onTeleport) onTeleport(tz->destinationLocation, tz->destinationPosition, tz->destinationRotationY);
				return;
			}
		}

		if (playerState) {
			for (auto& tz : teleportZones) {
				if (!tz.active || !tz.automatic) continue;
				const float autoR = tz.automaticRadius > 0.0f ? tz.automaticRadius : tz.radius;
				const float dist = (playerState->position - tz.position).norm();

				if (!tz.automaticInitialized) {
					// If the player starts inside the zone (e.g. just arrived here via teleport),
					// mark them as already inside so they must leave before it can fire.
					tz.automaticPlayerInside = (dist <= autoR);
					tz.automaticInitialized = true;
					continue;
				}

				const bool isInside = (dist <= autoR);
				if (isInside && !tz.automaticPlayerInside) {
					tz.automaticPlayerInside = true;
					logger() << "[TELEPORT] Auto-teleport triggered by zone '" << tz.id << "'" << std::endl;
					if (onTeleport) onTeleport(tz.destinationLocation, tz.destinationPosition, tz.destinationRotationY);
					return;
				} else if (!isInside) {
					tz.automaticPlayerInside = false;
				}
			}
		}

		for (auto& intObj : interactiveObjects)
			intObj.capturePresentationState();
	}

	void Location::handleDown(int64_t fingerId, int eventX, int eventY, int mx, int my)
	{
		// Calculate ray for picking
		if (dialogueSystem.blocksGameplayInput()) {
			dialogueSystem.handlePointerReleased(static_cast<float>(mx), Environment::projectionHeight - static_cast<float>(my));
			return;
		}

		auto playerState = player ? player->stateSnapshot() : nullptr;
		if (!playerState) return;
		auto locationState = stateSnapshot();
		if (!locationState) return;
		const std::string lastPlayerAttackTarget = playerState->attackTargetId;

		clearCharacterAttackTarget(*player);

		// Unproject click to ground plane for walk target
		float ndcX = 2.0f * eventX / Environment::width - 1.0f;
		float ndcY = 1.0f - 2.0f * eventY / Environment::height;
		float aspect = (float)Environment::width / (float)Environment::height;
		float tanHalfFov = tan(CAMERA_FOV_Y * 0.5f);

		float cosAzim = cos(localState_->cameraAzimuth), sinAzim = sin(localState_->cameraAzimuth);
		float cosIncl = cos(localState_->cameraInclination), sinIncl = sin(localState_->cameraInclination);

		Eigen::Vector3f camRight(cosAzim, 0.f, sinAzim);
		Eigen::Vector3f camForward(sinAzim * cosIncl, -sinIncl, -cosAzim * cosIncl);
		Eigen::Vector3f camUp(sinAzim * sinIncl, cosIncl, -cosAzim * sinIncl);
		const Eigen::Vector3f playerPos = player->renderPosition();
		Eigen::Vector3f camPos = playerPos + Eigen::Vector3f(-sinAzim * cosIncl, sinIncl, cosAzim * cosIncl) * Environment::zoom + Eigen::Vector3f(0,1,0);

		Eigen::Vector3f rayDir = (camForward + camRight * (ndcX * aspect * tanHalfFov) + camUp * (ndcY * tanHalfFov)).normalized();

		if (editorMode == EditorMode::Navigation) {
			if (rayDir.y() < -0.001f) {
				const float t = -camPos.y() / rayDir.y();
				const Eigen::Vector3f hit = camPos + rayDir * t;
				const bool ctrlHeld = (SDL_GetModState() & KMOD_CTRL) != 0;
				editor.handleLeftClick(hit, ctrlHeld);
			}
			return;
		}

		if (editorMode == EditorMode::InteractiveObjects) {
			if (rayDir.y() < -0.001f) {
				const float t = -camPos.y() / rayDir.y();
				const Eigen::Vector3f hit = camPos + rayDir * t;
				const bool ctrlHeld = (SDL_GetModState() & KMOD_CTRL) != 0;
				editor.handleInteractiveObjectClick(hit, ctrlHeld);
			}
			return;
		}

		// Any new gameplay click invalidates the previous click feedback. Ground
		// clicks and interactive-object clicks that require walking start a replacement.
		pathVisualization.cancel();

		//logger() << "[CLICK] Camera position: (" << camPos.x() << ", " << camPos.y() << ", " << camPos.z() << ")" << std::endl;
		//logger() << "[CLICK] Ray direction: (" << rayDir.x() << ", " << rayDir.y() << ", " << rayDir.z() << ")" << std::endl;

		// First check if we clicked on interactive object
		InteractiveObject* clickedObject = raycastInteractiveObjects(camPos, rayDir);
		if (clickedObject && player && clickedObject->state.isActive) {
			//logger() << "[CLICK] *** SUCCESS: Clicked on interactive object: " << clickedObject->loadedObject.name << " ***" << std::endl;

			gameServer_.submit(SetLocationTargetsCommand{
				locationId_, clickedObject->entityId(), std::string(), std::string()});
			const Eigen::Vector3f interactionTarget = clickedObject->state.hasInteractionPosition
				? clickedObject->state.interactionPosition
				: clickedObject->state.position;
			setCharacterTarget(*player, interactionTarget);
			pathVisualization.start(*player, interactionTarget);
			clearCharacterAttackTarget(*player);
			//logger() << "[CLICK] Player moving to object..." << std::endl;
		}
		else {

			//logger() << "Raycast npc step 1" << std::endl;
			// Check if we clicked on an NPC
			Character* clickedNpc = raycastNpcs(camPos, rayDir);
			if (clickedNpc && player) {
				auto clickedNpcState = clickedNpc->stateSnapshot();
				if (!clickedNpcState) return;
				float distance = (playerState->position - clickedNpcState->position).norm();
				int npcIndex = -1;
				for (size_t i = 0; i < npcs.size(); ++i) {
					if (npcs[i].get() == clickedNpc) {
						npcIndex = static_cast<int>(i);
						break;
					}
				}
				if (npcIndex != -1) {
					//logger() << "Raycast npc step 2" << std::endl;

					if (clickedNpcState->canAttack) {
						//logger() << "Raycast npc step 3" << std::endl;
						//logger() << "npcIndex=" << npcIndex << std::endl;
						// Hostile NPC: combat logic walks the player toward the stable target ID.
						if (lastPlayerAttackTarget == clickedNpc->entityId())
						{
							//logger() << "Raycast npc step 4" << std::endl;
							tryCharacterAttackCombo(*player);
						}
						const std::string targetId = clickedNpc->entityId();
						gameServer_.submit(SetCharacterTargetCommand{
							locationId_, player->entityId(), targetId});
						gameServer_.submit(SetLocationTargetsCommand{
							locationId_, std::string(), std::string(), std::string()});

						if (distance >= Character::kAttackRange) {
							setCharacterTarget(*player, clickedNpcState->position);
							pathVisualization.start(
								*player,
								clickedNpcState->position,
								PathVisualization::Style::Hostile);
						}

						if (distance <= clickedNpcState->interactionRadius) {
							//logger() << "[CLICK] Hostile NPC " << npcIndex << " in range; firing on_npc_interact" << std::endl;
							scriptEngine.callNpcInteractCallback(clickedNpc->entityId());
						}
					}
					else {
						// Peaceful NPC: walk to them, fire on_npc_interact when within talk distance.
						clearCharacterAttackTarget(*player);

						if (distance <= NPC_TALK_DISTANCE) {
							// Already in talk range — fire immediately, stop, and face the player.
							//logger() << "[CLICK] *** SUCCESS: Clicked on NPC index: " << npcIndex << " (in range) ***" << std::endl;
							setCharacterTarget(*player, playerState->position);
							gameServer_.submit(SetCharacterFaceTargetCommand{
								locationId_, npcs[npcIndex]->entityId(),
								gameServer_.localPlayerId()});
							scriptEngine.callNpcInteractCallback(clickedNpc->entityId());
							gameServer_.submit(SetLocationTargetsCommand{
								locationId_, std::string(), std::string(), std::string()});
						}
						else {
							//logger() << "[CLICK] NPC " << npcIndex << " out of talk range (distance " << distance
							//	<< " > " << NPC_TALK_DISTANCE << "); walking to NPC..." << std::endl;
							setCharacterTarget(*player, clickedNpcState->position);
							pathVisualization.start(*player, clickedNpcState->position);
							gameServer_.submit(SetLocationTargetsCommand{
								locationId_, std::string(), clickedNpc->entityId(),
								std::string()});
						}
					}
				}

			}
			else if (rayDir.y() < -0.001f && player) {
				// Unproject click to ground plane for walk target / teleport detection
				float t = -camPos.y() / rayDir.y();
				Eigen::Vector3f hit = camPos + rayDir * t;
				//logger() << "[CLICK] Clicked on ground at: (" << hit.x() << ", " << hit.z() << ")" << std::endl;

				TeleportZone* clickedTeleport = nullptr;
				for (auto& tz : teleportZones) {
					if (!tz.active) continue;
					Eigen::Vector2f d(hit.x() - tz.position.x(), hit.z() - tz.position.z());
					if (d.norm() <= tz.radius) { clickedTeleport = &tz; break; }
				}

				if (clickedTeleport) {
					//logger() << "[CLICK] Clicked teleport zone '" << clickedTeleport->id << "'" << std::endl;
					gameServer_.submit(SetLocationTargetsCommand{
						locationId_, std::string(), std::string(),
						clickedTeleport->id});
					setCharacterTarget(*player, clickedTeleport->position);
					pathVisualization.start(
						*player,
						clickedTeleport->position,
						PathVisualization::Style::Teleport);
					clearCharacterAttackTarget(*player);
				} else {
					const Eigen::Vector3f clickedDestination(hit.x(), 0.f, hit.z());
					setCharacterTarget(*player, clickedDestination);
					pathVisualization.start(*player, clickedDestination);
					clearCharacterAttackTarget(*player);
					gameServer_.submit(SetLocationTargetsCommand{
						locationId_, std::string(), std::string(), std::string()});
					if (onPlayerFloorWalk) onPlayerFloorWalk();
				}
			}
			else {
				//logger() << "[CLICK] No valid target found" << std::endl;
			}
		}
		//logger() << "========================================\n" << std::endl;
	}
	void Location::handleUp(int64_t fingerId, int mx, int my)
	{
		if (dialogueSystem.blocksGameplayInput()) {
			dialogueSystem.handlePointerReleased(static_cast<float>(mx), Environment::projectionHeight - static_cast<float>(my));
			return;
		}

	}
	void Location::handleMotion(int64_t fingerId, int eventX, int eventY, int mx, int my)
	{
		if (dialogueSystem.blocksGameplayInput()) {
			dialogueSystem.handlePointerMoved(
				static_cast<float>(mx),
				Environment::projectionHeight - static_cast<float>(my)
			);
		}

		if (cameraDragging) {
			int dx = eventX - lastMouseX;
			int dy = eventY - lastMouseY;
			lastMouseX = eventX;
			lastMouseY = eventY;

			const float sensitivity = 0.005f;
			localState_->cameraAzimuth += dx * sensitivity;
			float inclination =
				localState_->cameraInclination + dy * sensitivity;

			const float minInclination = M_PI * 30.f / 180.f;
			const float maxInclination = M_PI * 0.5f;
			localState_->cameraInclination =
				max(minInclination, min(maxInclination, inclination));
		}
	}

	void Location::updatePresentation(int64_t delta)
	{
		dialogueSystem.update(static_cast<int>(delta));
		pathVisualization.update(delta);
		for (auto& tz : teleportZones)
			tz.update(static_cast<float>(delta));
	}

	bool Location::requestDialogueStart(const std::string& dialogueId)
	{
		return dialogueSystem.startDialogue(dialogueId);
	}

	bool Location::requestCutsceneStart(const std::string& cutsceneId)
	{
		return dialogueSystem.startCutscene(cutsceneId);
	}

	void Location::setOnCutsceneFinished(std::function<void(const std::string&)> cb)
	{
		dialogueSystem.setOnCutsceneFinished(std::move(cb));
	}

	void Location::setDialogueFlag(const std::string& flag, int value)
	{
		dialogueSystem.setFlag(flag, value);
	}

	int Location::getDialogueFlag(const std::string& flag) const
	{
		return dialogueSystem.getFlag(flag);
	}

	void Location::captureAuxiliaryState(LocationGameState& out) const
	{
		out.hasPersistentState = true;
		dialogueSystem.saveDialogueState(out.dialogue);
		scriptEngine.saveScriptGlobals(out.scriptGlobals);
		out.triggerZones.clear();
		for (const auto& zone : triggerZones)
			out.triggerZones[zone.id] = {zone.enabled, zone.playerInside};
		out.teleportZones.clear();
		for (const auto& zone : teleportZones) out.teleportZones[zone.id] = zone.active;
	}

	void Location::applyAuxiliaryState(const LocationGameState& in)
	{
		dialogueSystem.loadDialogueState(in.dialogue);
		scriptEngine.loadScriptGlobals(in.scriptGlobals);
		for (auto& zone : triggerZones) {
			auto stateIt = in.triggerZones.find(zone.id);
			if (stateIt != in.triggerZones.end()) {
				zone.enabled = stateIt->second.enabled;
				zone.playerInside = stateIt->second.playerInside;
			}
		}
		for (auto& zone : teleportZones) {
			auto stateIt = in.teleportZones.find(zone.id);
			if (stateIt != in.teleportZones.end()) zone.active = stateIt->second;
		}
	}

} // namespace FRG