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/*  Project Starshatter 4.5
	Destroyer Studios LLC
	Copyright © 1997-2004. All Rights Reserved.

	SUBSYSTEM:    Stars.exe
	FILE:         Sensor.h
	AUTHOR:       John DiCamillo


	OVERVIEW
	========
	Integrated (Passive and Active) Sensor Package class
*/

#ifndef Sensor_h
#define Sensor_h

#include "Types.h"
#include "SimObject.h"
#include "System.h"
#include "Geometry.h"
#include "List.h"

// +--------------------------------------------------------------------+

class Shot;
class Contact;

// +--------------------------------------------------------------------+

class Sensor : public System, public SimObserver
{
public:
	enum Mode {
		PAS, STD, ACM, GM,   // fighter modes
		PST, CST             // starship modes
	};

	Sensor();
	Sensor(const Sensor& rhs);
	virtual ~Sensor();

	virtual void      ExecFrame(double seconds);
	virtual SimObject* LockTarget(int  type=SimObject::SIM_SHIP,
	bool closest=false,
	bool hostile=false);
	virtual SimObject* LockTarget(SimObject* candidate);
	virtual bool      IsTracking(SimObject* tgt);
	virtual void      DoEMCON(int emcon);

	virtual void      ClearAllContacts();

	virtual Mode      GetMode()         const { return mode; }
	virtual void      SetMode(Mode m);
	virtual double    GetBeamLimit()    const;
	virtual double    GetBeamRange()    const;
	virtual void      IncreaseRange();
	virtual void      DecreaseRange();
	virtual void      AddRange(double r);

	Contact*          FindContact(Ship* s);
	Contact*          FindContact(Shot* s);

	// borrow this sensor for missile seeker
	SimObject*        AcquirePassiveTargetForMissile();
	SimObject*        AcquireActiveTargetForMissile();

	// SimObserver:
	virtual bool         Update(SimObject* obj);
	virtual const char*  GetObserverName() const;

protected:
	void              ProcessContact(Ship* contact, double az1, double az2);
	void              ProcessContact(Shot* contact, double az1, double az2);

	Mode              mode;
	int               nsettings;
	int               range_index;
	float             range_settings[8];
	SimObject*        target;

	List<Contact>     contacts;
};

#endif Sensor_h