//#include "ATCmgr.hxx"
#include "ground.hxx"
#include "ATCProjection.hxx"
+#include "AIPlane.hxx"
//DCL - a complete guess for now.
#define FG_TOWER_DEFAULT_RANGE 30
CIRCUIT,
INBOUND,
OUTBOUND,
+ TTT_UNKNOWN, // departure, but we don't know if for circuits or leaving properly
STRAIGHT_IN
// Umm - what's the difference between INBOUND and STRAIGHT_IN ?
-};
-
-// Much simplified compared to AILocalTraffic
-enum TwrPatternLeg {
- TWR_LANDING_ROLL,
- TWR_FINAL,
- TWR_BASE,
- TWR_DOWNWIND,
- TWR_CROSSWIND,
- TWR_CLIMBOUT,
- TWR_TAKEOFF_ROLL,
- TWR_UNKNOWN
-};
+}; // TODO - need some differentiation of IFR and VFR traffic in order to give the former priority.
// Structure for holding details of a plane under tower control.
// Not fixed yet - may include more stuff later.
TowerPlaneRec(Point3D pt);
TowerPlaneRec(PlaneRec p, Point3D pt);
- FGAIEntity* planePtr; // This might move to the planeRec eventually
+ FGAIPlane* planePtr; // This might move to the planeRec eventually
PlaneRec plane;
Point3D pos;
tower_traffic_type opType;
// Whereabouts in circuit if doing circuits
- TwrPatternLeg leg;
+ PatternLeg leg;
bool isUser; // true if this plane is the user
};
void ReportRunwayVacated(string ID);
void ReportReadyForDeparture(string ID);
- // Contact tower when at a hold short for departure
- void ContactAtHoldShort(PlaneRec plane, FGAIEntity* requestee, tower_traffic_type operation);
+ // Contact tower when at a hold short for departure - for now we'll assume plane - maybe vehicles might want to cross runway eventually?
+ void ContactAtHoldShort(PlaneRec plane, FGAIPlane* requestee, tower_traffic_type operation);
// Public interface to the active runway - this will get more complex
// in the future and consider multi-runway use, airplane weight etc.
inline atc_type GetType() { return TOWER; }
inline FGGround* GetGroundPtr() { return ground; }
+
+ // Returns true if positions of crosswind/downwind/base leg turns should be constrained by previous traffic
+ // plus the constraint position as a rwy orientated orthopos (meters)
+ bool GetCrosswindConstraint(double& cpos);
+ bool GetDownwindConstraint(double& dpos);
+ bool GetBaseConstraint(double& bpos);
+
+ // Returns true if OK to transmit on this frequency
+ inline bool FreqClear() { return freqClear; }
+ // Indicate that the frequency is in use
+ inline void FreqInUse() { freqClear = false; }
+ // The idea is that AI traffic or the user ATC dialog box calls FreqInUse() when they begin transmitting,
+ // and that the tower control sets freqClear back to true following a reply.
+ // AI traffic should check FreqClear() is true prior to transmitting.
+ // The user will just have to wait for a gap in dialog as in real life.
private:
FGATCMgr* ATCmgr;
// Figure out if a given position lies on a runway or not
bool OnAnyRunway(Point3D pt);
- // Calculate the eta of each plane to the threshold.
+ // Calculate the eta of a plane to the threshold.
// For ground traffic this is the fastest they can get there.
// For air traffic this is the middle approximation.
+ void CalcETA(TowerPlaneRec* tpr);
+
+ // Iterate through all the lists and call CalcETA for all the planes.
void doThresholdETACalc();
// Order the list of traffic as per expected threshold use and flag any conflicts
bool doThresholdUseOrder();
+ // Calculate the crow-flys distance of a plane to the threshold in meters
+ double CalcDistOutM(TowerPlaneRec* tpr);
+
+ // Calculate the crow-flys distance of a plane to the threshold in miles
+ double CalcDistOutMiles(TowerPlaneRec* tpr);
+
void doCommunication();
void IssueLandingClearance(TowerPlaneRec* tpr);
bool display; // Flag to indicate whether we should be outputting to the ATC display.
bool displaying; // Flag to indicate whether we are outputting to the ATC display.
+ bool freqClear; // Flag to indicate if the frequency is clear of ongoing dialog
+
// environment - need to make sure we're getting the surface winds and not winds aloft.
SGPropertyNode* wind_from_hdg; //degrees
SGPropertyNode* wind_speed_knots; //knots
// or possibly another data structure with the positions of the inactive planes.
// Need a data structure to hold outstanding communications from aircraft.
- // Linked-list of planes on approach ordered with nearest first (timewise).
+ // Linked-list of planes on approach to active rwy ordered with nearest first (timewise).
// Includes planes that have landed but not yet vacated runway.
// Somewhat analagous to the paper strips used (used to be used?) in real life.
// Doesn't include planes in circuit until they turn onto base/final?
+ // TODO - may need to alter this for operation to more than one active rwy.
tower_plane_rec_list_type appList;
tower_plane_rec_list_iterator appListItr;
+
+ // What should we do with planes approaching the airport to join the circuit somewhere
+ // but not on straight-in though? - put them in here for now.
+ tower_plane_rec_list_type circuitAppList;
+ tower_plane_rec_list_iterator circuitAppListItr;
// List of departed planes (planes doing circuits go into circuitList not depList after departure)
tower_plane_rec_list_type depList;
// List of all planes due to use a given rwy arranged in projected order of rwy use
tower_plane_rec_list_type trafficList; // TODO - needs to be expandable to more than one rwy
tower_plane_rec_list_iterator trafficListItr;
+
+ // Returns true if successful
+ bool RemoveFromTrafficList(string id);
+
+ // Return the ETA of plane no. list_pos (1-based) in the traffic list.
+ // i.e. list_pos = 1 implies next to use runway.
+ double GetTrafficETA(unsigned int list_pos);
+
+ // Add a tower plane rec with ETA to the traffic list in the correct position ETA-wise.
+ // Returns true if this could cause a threshold ETA conflict with other traffic, false otherwise.
+ bool AddToTrafficList(TowerPlaneRec* t, bool holding = false);
// Ground can be separate or handled by tower in real life.
// In the program we will always use a separate FGGround class, but we need to know
string trans_ident; // transmitted ident
bool tower_failed; // tower failed?
- // Pointers to current users position
- SGPropertyNode* user_lon_node;
- SGPropertyNode* user_lat_node;
- SGPropertyNode* user_elev_node;
+ // Pointers to current users position and orientation
+ SGPropertyNode* user_lon_node;
+ SGPropertyNode* user_lat_node;
+ SGPropertyNode* user_elev_node;
+ SGPropertyNode* user_hdg_node;
+
+ // Details of the general traffic flow etc in the circuit
+ double crosswind_leg_pos; // Distance from threshold crosswind leg is being turned to in meters (actual operation - *not* ideal circuit)
+ double downwind_leg_pos; // Actual offset distance in meters from the runway that planes are flying the downwind leg
+ // Currently not sure whether the above should be always +ve or just take the natural orthopos sign (+ve for RH circuit, -ve for LH).
+ double base_leg_pos; // Actual offset distance from the threshold (-ve) that planes are turning to base leg.
friend istream& operator>> ( istream&, FGTower& );
};
projects / flightgear.git / blobdiff