#include "vphysics2/iphysicsbody.h"

native enum JointMotion_t is Sandbox.JointMotion;
native enum PhysicsBodyType_t is Sandbox.PhysicsBodyType;
native enum PhysicsJointType_t is Sandbox.PhysicsJointType;
native enum PhysicsShapeType_t is Sandbox.PhysicsShapeType;
native enum PhysicsSimulation_t is Sandbox.PhysicsSimulationMode;
native enum VPhysicsMotionType_t is Sandbox.PhysicsMotionType;

delegate ProcessIntersectionsDelegate_t;
delegate DebugDrawDelegate_t;

[Handle:Sandbox.PhysicsWorld]
native class IPhysicsWorld
{
	// Bodies
	IPhysicsBody AddBody();
	void RemoveBody( IPhysicsBody pBody );

	IPhysicsBody GetWorldReferenceBody();
	void SetWorldReferenceBody( IPhysicsBody pBody );

	// Joints
	void RemoveJoint( IPhysicsJoint pJoint );

	void SetGravity( Vector3 gravity );
	Vector3 GetGravity();

	void SetSimulation( PhysicsSimulationMode simulation  );
	PhysicsSimulationMode GetSimulation();

	// Sleeping
	void EnableSleeping();
	void DisableSleeping();
	bool IsSleepingEnabled();

	void SetMaximumLinearSpeed( float flSpeed );

	IPhysicsJoint AddWeldJoint( IPhysicsBody pBody1, IPhysicsBody pBody2, Transform localFrame1, Transform localFrame2 );
	IPhysicsJoint AddSpringJoint( IPhysicsBody pBody1, IPhysicsBody pBody2, Transform localFrame1, Transform localFrame2 );
	IPhysicsJoint AddRevoluteJoint( IPhysicsBody pBody1, IPhysicsBody pBody2, Transform localFrame1, Transform localFrame2 );
	IPhysicsJoint AddPrismaticJoint( IPhysicsBody pBody1, IPhysicsBody pBody2, Transform localFrame1, Transform localFrame2 );
	IPhysicsJoint AddSphericalJoint( IPhysicsBody pBody1, IPhysicsBody pBody2, Transform localFrame1, Transform localFrame2 );
	IPhysicsJoint AddMotorJoint( IPhysicsBody pBody1, IPhysicsBody pBody2, Transform localFrame1, Transform localFrame2 );

	//
	// Sets the collision rules using a json serialized Sandbox.Internal.CollisionRules
	//
	void SetCollisionRulesFromJson( string rules );
	
	inline void StepSimulation( float flTimestep, int nNumSteps )
	{
		g_pPhysicsSystem->StepSimulation( &self, 1, flTimestep, nNumSteps );
	}

	void ProcessIntersections( ProcessIntersectionsDelegate_t f );

	void DestroyAggregateInstance( IPhysAggregateInstance pAggregate );

	inline IPhysAggregateInstance CreateAggregateInstance( string resourceName, Transform tmStart, ulong nGSNHandle, PhysicsMotionType nMotionType )
	{
		HPhysAggregateData_Internal hPhysicsData = g_pResourceSystem->FindExistingResourceByName< RESOURCE_TYPE_PHYSICSDATA_INTERNAL >( CResourceName( resourceName ) );
		IPhysAggregateInstance *pInstance = nullptr;
		if ( !hPhysicsData.HasData() )
			return pInstance;

		pInstance = self->CreateAggregateInstance( hPhysicsData, tmStart, nGSNHandle, nMotionType );
		return pInstance;
	}

	inline IPhysAggregateInstance CreateAggregateInstance( IModel model, Transform tmStart, ulong nGSNHandle, PhysicsMotionType nMotionType )
	{
		return self->CreateAggregateInstance( model->GetPhysicsContainer(), tmStart, nGSNHandle, nMotionType );
	}

	void SetDebugScene( ISceneWorld world );
	ISceneWorld GetDebugScene();
	void Draw( DebugDrawDelegate_t debugDrawFcn );

	inline IPhysicsWorld ManagedObject()
	{
		return self;
	}

	void Query( cref CQueryResult result, Vector3 vCenter, float flRadius, CastTo[RnQueryObjectSet] ushort nObjectSetMask );
	void Query( cref CQueryResult result, AABB_t bounds, CastTo[RnQueryObjectSet] ushort nObjectSetMask );
	void Query( cref CQueryResult result, CastTo[Vector*] void* pPoints, int nPoints, CastTo[RnQueryObjectSet] ushort nObjectSetMask );
}