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Diffstat (limited to 'game/code/roads/lane.h')
| -rw-r--r-- | game/code/roads/lane.h | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/game/code/roads/lane.h b/game/code/roads/lane.h new file mode 100644 index 0000000..eb4fdd6 --- /dev/null +++ b/game/code/roads/lane.h @@ -0,0 +1,187 @@ +/*=========================================================================== + Copyright (C) 2000 Radical Entertainment Ltd. All rights reserved. + + Component: Lane + + Description: + + + Authors: Travis Brown-John + + Revisions Date Author Revision + 2001/02/02 Tbrown-John Created + +===========================================================================*/ + +#ifndef LANE_HPP_ +#define LANE_HPP_ + +#include <radmath/radmath.hpp> +#include <vector> +#include <list> +#include <roads/geometry.h> +#include <render/culling/swaparray.h> +#include <worldsim/traffic/trafficvehicle.h> + +class Road; +class Lane; + +// the read only interface to the lane. +struct ILaneInformation +{ + // get the max allowable speed. + virtual float GetSpeedLimit( void ) const = 0; + virtual int GetDensity( void ) const = 0; + // returns the parent road of this lane. + virtual const Road *GetRoad( void ) const = 0; + +#if defined(RAD_TUNE) || defined(RAD_DEBUG) + // For Rendering + // point is assigned the world position of the start of the lane + virtual void GetStart( rmt::Vector &point ) const = 0; + // point is assigned the world position of the end of the lane + virtual void GetEnd( rmt::Vector &point ) const = 0; + // given a parametric time, updates the 'point.' returns true if at the end of the lane. + virtual bool GetPoint( float t, rmt::Vector& point ) const = 0; +#endif + +}; + +// the write only interface to the lane. +struct ILaneControl +{ + // set the max allowable speed. + virtual void SetSpeedLimit( float metrespersecond ) = 0; + // set the max allowable num traffic cars. + virtual void SetDensity( int numCars ) = 0; +}; + +class Lane +: +public ILaneInformation, +public ILaneControl +{ +public: + + // ctor + Lane( void ); + ~Lane(); + + // grab the spline associated with this lane. + void Create( int density, Road* parentRoad ); + + + ////////////////////////////////////////////////// + // Implementing ILaneInformation + // + float GetSpeedLimit( void ) const; + int GetDensity( void ) const; + const Road* GetRoad( void ) const; + +#if defined(RAD_DEBUG) || defined(RAD_TUNE) + // Rendering stuff + void GetStart( rmt::Vector &point ) const; + void GetEnd( rmt::Vector &point ) const; + bool GetPoint( float t, rmt::Vector& point ) const; + void GetPoint( unsigned int index, rmt::Vector* point ) const; +#endif + ////////////////////////////////////////////////////// + + /////////////////////////////////////////////////// + // Implementing ILaneControl + // + void SetSpeedLimit( float metrespersecond ); + void SetDensity( int numCars ); + void NotifyWaitingTraffic( unsigned int state ); + //////////////////////////////////////////////////// + + + // Temp method to display. + void Render( void ); + +#if defined(RAD_DEBUG) || defined(RAD_TUNE) + void AllocatePoints( unsigned int numPoints ); + unsigned int GetNumPoints( void ) const; + void SetPoint( unsigned int index, const rmt::Vector& point ); +#endif + +public: + // the vehicle at the front of all lane's traffic, waiting at the intersection. + TrafficVehicle* mWaitingVehicle; + + // Add traffic to the lane's internal list to keep track of how many have been + // added to the lane (to conform to the lane's desired density). + SwapArray<TrafficVehicle*> mTrafficVehicles; + + +private: + const Road *mpParentRoad; // the road that owns this lane. + float mfSpeedLimit; // the maximum allowable speed for this lane. + int mDesiredDensity; // the desired density ( in total cars ) + +#if defined(RAD_DEBUG) || defined(RAD_TUNE) + // Rendering stuff + rmt::Vector* mPoints; + unsigned int mNumPoints; +#endif + +}; + +//***************************************************************************** +// +// Inline Public Member Functions +// +//***************************************************************************** + +//============================================================================= +// Lane::SetSpeedLimit +//============================================================================= +// Description: Comment +// +// Parameters: ( float metrespersecond ) +// +// Return: void +// +//============================================================================= +inline void Lane::SetSpeedLimit( float metrespersecond ) +{ + mfSpeedLimit = metrespersecond; +} + + +#if defined(RAD_DEBUG) || defined(RAD_TUNE) + inline bool Lane::GetPoint( float t, rmt::Vector& point ) const + { + //t will equal what segment 0 - mpParentRoad->GetNumRoadSegments() + // *plus* 0-0.999999... for it's position in the road. + return false; + } + + inline void Lane::GetPoint( unsigned int index, rmt::Vector* point ) const + { + rAssert( index < mNumPoints ); + *point = mPoints[index]; + } +#endif + + + +inline const Road* Lane::GetRoad( void ) const +{ + return mpParentRoad; +} +inline float Lane::GetSpeedLimit() const +{ + return mfSpeedLimit; +} +inline void Lane::SetDensity( int numCars ) +{ + mDesiredDensity = numCars; +} +inline int Lane::GetDensity() const +{ + return mDesiredDensity; +} + + +#endif
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