using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using MagicPhysX; // for enable Extension Methods.
using MagicPhysX.Toolkit;
using PhysX;
using static MagicPhysX.NativeMethods; // recommend to use C API.

namespace Physx
{
    public unsafe struct PhysxWorldManager
    {
        public PhysxWorldManager()
        {
            //TODO 后续根据实际业务来写
            //stamp_ = KG_GetTimeStamp();
            stamp_ = 0;
            physx_world_manager_.Clear();
        }
        //virtual ~PhysxWorldManager();
        bool AddPhysxWorld(UInt64 area_id)
        {
            var itl = physx_world_manager_.ContainsKey(area_id);
            if (itl = true)
                return false;
            var physx_world = new PhysxWorld();
            // physx_world
            if (physx_world.Equals(default(PhysxWorld)) == false)
                return false;

            physx_world.OnInit();
            //physx_world_manager_.Add< area_id, physx_world});
            physx_world_manager_.Add(area_id, (nint)(&physx_world));
            return true;

        }
        PhysxWorld* GetPhysxWorld(UInt64 area_id)
        {
            nint ret = 0;
            if (physx_world_manager_.TryGetValue(area_id, out ret))
            {
                return (PhysxWorld*)(ret.ToPointer());
            }
            return null;
        }
        bool AddActorToPhysxWorld(UInt64 area_id, PxRigidActor* obj)
        {
            var physx_world = GetPhysxWorld(area_id);
            if (physx_world == null)
            {
                return false;
            }
            physx_world->AddActorToDaynamicWorld(obj);
            return true;
        }
        bool PickUpActorFromPhysxWorld(UInt64 area_id, PxRigidActor* obj)
        {
            var physx_world = GetPhysxWorld(area_id);
            if (physx_world == null)
            {
                return false;
            }
            physx_world->PickUpActor(obj);
            return true;
        }
        //暂不实现 业务代码
        //bool SwitchPhysxWorld(KScene* scene, UInt64 cur_area_id, UInt64 to_area_id, KHero* hero)
        //{ 

        //}
        //bool UpdatePhysxWorld(KScene* secene)
        //{ 
        //    return false;
        //}
        bool HasPhysxWorld()
        {
            return physx_world_manager_.Count() > 0;
        }

        Dictionary<UInt64, IntPtr> physx_world_manager_;
        UInt64 stamp_;
    }
}