Pass dt to update(...)

src/ATC/ATC.cxx

@@ -28,7 +28,7 @@
 FGATC::~FGATC() {
 }
 
-void FGATC::Update() {
+void FGATC::Update(double dt) {
 }
 
 void FGATC::AddPlane(string pid) {

src/ATC/ATC.hxx

@@ -36,6 +36,25 @@ SG_USING_STD(ostream);
 SG_USING_STD(string);
 SG_USING_STD(ios);
 
+enum plane_type {
+	UNKNOWN,
+	GA_SINGLE,
+	GA_HP_SINGLE,
+	GA_TWIN,
+	GA_JET,
+	MEDIUM,
+	HEAVY,
+	MIL_JET
+};
+
+// PlaneRec - a structure holding ATC-centric details of planes under control
+// This might move or change eventually
+struct PlaneRec {
+	plane_type type;
+	string callsign;
+	int squawkcode;
+};
+
 // Possible types of ATC type that the radios may be tuned to.
 // INVALID implies not tuned in to anything.
 enum atc_type {
@@ -51,6 +70,9 @@ enum atc_type {
 // DCL - new experimental ATC data store
 struct ATCData {
 	atc_type type;
+	// I've deliberately used float instead of double here to keep the size down - we'll be storing thousands of these in memory.
+	// In fact, we could probably ditch x, y and z and generate on the fly as needed.
+	// On the other hand, we'll probably end up reading this data directly from the DAFIF eventually anyway!!
 	float lon, lat, elev;
 	float x, y, z;
 	//int freq;
@@ -70,7 +92,7 @@ public:
     virtual ~FGATC();
 
     // Run the internal calculations
-    virtual void Update();
+    virtual void Update(double dt);
 
     // Add plane to a stack
     virtual void AddPlane(string pid);

src/ATC/approach.cxx

@@ -82,7 +82,7 @@ void FGApproach::Init() {
 // ============================================================================
 // the main update function
 // ============================================================================
-void FGApproach::Update() {
+void FGApproach::Update(double dt) {
 	
 	const int max_trans = 20;
 	FGTransmission tmissions[max_trans];

src/ATC/approach.hxx

@@ -150,7 +150,7 @@ public:
 
   void Init();
 
-  void Update();
+  void Update(double dt);
 
   // Add new plane to stack if not already registered 
   // Input:  pid - id of plane (name) 

src/ATC/atis.cxx

@@ -75,7 +75,7 @@ FGATIS::~FGATIS() {
 }
 
 // Main update function - checks whether we are displaying or not the correct message.
-void FGATIS::Update() {
+void FGATIS::Update(double dt) {
 	if(display) {
 		if(displaying) {
 			// Check if we need to update the message

src/ATC/atis.hxx

@@ -78,7 +78,7 @@ class FGATIS : public FGATC {
 	~FGATIS(void);
 	
 	//run the ATIS instance
-	void Update(void);
+	void Update(double dt);
 	
 	//Indicate that this instance should be outputting to the ATC display
 	inline void SetDisplay(void) {display = true;}