TmpMenu/BigBaseV2/src/services/vehicle_preview/vehicle_preview_service.cpp

#include "fiber_pool.hpp"
#include "gui.hpp"
#include "thread_pool.hpp"
#include "util/entity.hpp"
#include "util/vehicle.hpp"
#include "vehicle_preview_service.hpp"

namespace big
{
	vehicle_preview_service::vehicle_preview_service()
	{
		g_vehicle_preview_service = this;
	}

	vehicle_preview_service::~vehicle_preview_service()
	{
		g_vehicle_preview_service = nullptr;
	}

	void vehicle_preview_service::set_preview_vehicle(const vehicle_item& item)
	{
		if (item.hash != 0)
		{
			if (m_model_hash != item.hash)
			{
				m_model_hash = item.hash;
				m_new_model = true;
			}

			if (!m_running)
			{
				g_thread_pool->push([this] { preview_loop(); });
			}
		}
	}

	void vehicle_preview_service::preview_loop()
	{
		if (m_running)
			return;
		m_running = true;

		g_fiber_pool->queue_job([this] {
			while (
				g_running && m_running && g_gui.m_opened &&
				(g->spawn.preview_vehicle || g->clone_pv.preview_vehicle)
			) {
				auto location = ENTITY::GET_OFFSET_FROM_ENTITY_IN_WORLD_COORDS(self::ped, 0.f, 10.f, .5f);
				if (m_current_veh == -1)
				{
					m_new_model = false;
					location.z = -10.f;
					m_current_veh = vehicle::spawn(m_model_hash, location, 0.f, false);
					ENTITY::FREEZE_ENTITY_POSITION(m_current_veh, true);
					ENTITY::SET_ENTITY_ALPHA(m_current_veh, 0, 0);
					ENTITY::SET_ENTITY_COLLISION(m_current_veh, false, false);
					ENTITY::SET_CAN_CLIMB_ON_ENTITY(m_current_veh, false);
					OBJECT::SET_OBJECT_ALLOW_LOW_LOD_BUOYANCY(m_current_veh, false);
				}
				else if (m_new_model)
				{
					entity::delete_entity(m_current_veh);

					m_current_veh = -1;
				}
				else
				{
					if (const int alpha = ENTITY::GET_ENTITY_ALPHA(m_current_veh); alpha < 250)
					{
						ENTITY::SET_ENTITY_ALPHA(m_current_veh, std::min<int>(255, alpha + 10), 0);
					}

					ENTITY::SET_ENTITY_HEADING(m_current_veh, m_heading);
					ENTITY::SET_ENTITY_COORDS(m_current_veh, location.x, location.y, location.z, 0, 0, 0, 0);
				}

				if (m_heading += 0.5f; m_heading > 359) m_heading = 0;

				script::get_current()->yield();
			}

			entity::delete_entity(m_current_veh);
			m_current_veh = -1;
			m_running = false;
		});
	}

	void vehicle_preview_service::stop_preview()
	{
		m_running = false;
	}
}