From 3c487c5cd69c53d6fea948643c0a76df03516605 Mon Sep 17 00:00:00 2001 From: Aki Date: Fri, 1 Apr 2022 21:23:39 +0200 Subject: Moved Stars45 to StarsEx --- Stars45/Contact.cpp | 364 ---------------------------------------------------- 1 file changed, 364 deletions(-) delete mode 100644 Stars45/Contact.cpp (limited to 'Stars45/Contact.cpp') diff --git a/Stars45/Contact.cpp b/Stars45/Contact.cpp deleted file mode 100644 index 2dbec5a..0000000 --- a/Stars45/Contact.cpp +++ /dev/null @@ -1,364 +0,0 @@ -/* Starshatter: The Open Source Project - Copyright (c) 2021-2022, Starshatter: The Open Source Project Contributors - Copyright (c) 2011-2012, Starshatter OpenSource Distribution Contributors - Copyright (c) 1997-2006, Destroyer Studios LLC. - - AUTHOR: John DiCamillo - - - OVERVIEW - ======== - Integrated (Passive and Active) Sensor Package class implementation -*/ - -#include "Contact.h" -#include "Drone.h" -#include "Sensor.h" -#include "Ship.h" -#include "Sim.h" -#include "WeaponDesign.h" - -#include "Game.h" -#include "Clock.h" - -// +----------------------------------------------------------------------+ - -const int DEFAULT_TRACK_UPDATE = 500; // milliseconds -const int DEFAULT_TRACK_LENGTH = 20; // 10 seconds -const double DEFAULT_TRACK_AGE = 10; // 10 seconds -const double SENSOR_THRESHOLD = 0.25; - -// +----------------------------------------------------------------------+ - -Contact::Contact() -: ship(0), shot(0), d_pas(0.0f), d_act(0.0f), -track(0), ntrack(0), time(0), track_time(0), probe(false) -{ - acquire_time = Clock::GetInstance()->GameTime(); -} - -Contact::Contact(Ship* s, float p, float a) -: ship(s), shot(0), d_pas(p), d_act(a), -track(0), ntrack(0), time(0), track_time(0), probe(false) -{ - acquire_time = Clock::GetInstance()->GameTime(); - Observe(ship); -} - -Contact::Contact(Shot* s, float p, float a) -: ship(0), shot(s), d_pas(p), d_act(a), -track(0), ntrack(0), time(0), track_time(0), probe(false) -{ - acquire_time = Clock::GetInstance()->GameTime(); - Observe(shot); -} - -// +----------------------------------------------------------------------+ - -Contact::~Contact() -{ - delete [] track; -} - -// +----------------------------------------------------------------------+ - -int -Contact::operator == (const Contact& c) const -{ - if (ship) - return ship == c.ship; - - else if (shot) - return shot == c.shot; - - return 0; -} - -// +----------------------------------------------------------------------+ - -bool -Contact::Update(SimObject* obj) -{ - if (obj == ship || obj == shot) { - ship = 0; - shot = 0; - d_act = 0; - d_pas = 0; - - ClearTrack(); - } - - return SimObserver::Update(obj); -} - -const char* -Contact::GetObserverName() const -{ - static char name[128]; - - if (ship) - sprintf_s(name, "Contact Ship='%s'", ship->Name()); - else if (shot) - sprintf_s(name, "Contact Shot='%s' %s", shot->Name(), shot->DesignName()); - else - sprintf_s(name, "Contact (unknown)"); - - return name; -} - -// +----------------------------------------------------------------------+ - -double -Contact::Age() const -{ - double age = 0; - - if (!ship && !shot) - return age; - - double seconds = (Clock::GetInstance()->GameTime() - time) / 1000.0; - - age = 1.0 - seconds/DEFAULT_TRACK_AGE; - - if (age < 0) - age = 0; - - return age; -} - -int -Contact::GetIFF(const Ship* observer) const -{ - int i = 0; - - if (ship) { - i = ship->GetIFF(); - - // if the contact is on our side or has locked us up, - // we know whose side he's on. - - // Otherwise: - if (i != observer->GetIFF() && !Threat(observer)) { - if (d_pas < 2*SENSOR_THRESHOLD && d_act < SENSOR_THRESHOLD && !Visible(observer)) - i = -1000; // indeterminate iff reading - } - } - - else if (shot && shot->Owner()) { - i = shot->Owner()->GetIFF(); - } - - return i; -} - -bool -Contact::ActLock() const -{ - return d_act >= SENSOR_THRESHOLD; -} - -bool -Contact::PasLock() const -{ - return d_pas >= SENSOR_THRESHOLD; -} - -// +----------------------------------------------------------------------+ - -void -Contact::GetBearing(const Ship* observer, double& az, double& el, double& rng) const -{ - // translate: - Point targ_pt = loc - observer->Location(); - - // rotate: - const Camera* cam = &observer->Cam(); - double tx = targ_pt * cam->vrt(); - double ty = targ_pt * cam->vup(); - double tz = targ_pt * cam->vpn(); - - // convert to spherical coords: - rng = targ_pt.length(); - az = asin(fabs(tx) / rng); - el = asin(fabs(ty) / rng); - - if (tx < 0) az = -az; - if (ty < 0) el = -el; - - // correct az/el for back hemisphere: - if (tz < 0) { - if (az < 0) az = -PI - az; - else az = PI - az; - } -} - -double -Contact::Range(const Ship* observer, double limit) const -{ - double r = Point(loc - observer->Location()).length(); - - // if passive only, return approximate range: - if (!ActLock()) { - const int chunk = 25000; - - if (!PasLock()) { - r = (int) limit; - } - - else if (r <= chunk) { - r = chunk; - } - - else { - int r1 = (int) (r + chunk/2) / chunk; - r = r1 * chunk; - } - } - - return r; -} - -// +----------------------------------------------------------------------+ - -bool -Contact::InFront(const Ship* observer) const -{ - // translate: - Point targ_pt = loc - observer->Location(); - - // rotate: - const Camera* cam = &observer->Cam(); - double tz = targ_pt * cam->vpn(); - - if (tz > 1.0) - return true; - - return false; -} - -bool -Contact::Threat(const Ship* observer) const -{ - bool threat = false; - - if (observer && observer->Life() != 0) { - if (ship && ship->Life() != 0) { - threat = (ship->GetIFF() && - ship->GetIFF() != observer->GetIFF() && - ship->GetEMCON() > 2 && - ship->IsTracking((Ship*) observer) && - ship->Weapons().size() > 0); - - if (threat && observer->GetIFF() == 0) - threat = ship->GetIFF() > 1; - } - - else if (shot) { - threat = shot->IsTracking((Ship*) observer); - - if (!threat && shot->Design()->probe && shot->GetIFF() != observer->GetIFF()) { - Point probe_pt = shot->Location() - observer->Location(); - double prng = probe_pt.length(); - - threat = (prng < shot->Design()->lethal_radius); - } - } - } - - return threat; -} - -bool -Contact::Visible(const Ship* observer) const -{ - // translate: - Point targ_pt = loc - observer->Location(); - double radius = 0; - - if (ship) - radius = ship->Radius(); - - else if (shot) - radius = shot->Radius(); - - // rotate: - const Camera* cam = &observer->Cam(); - double rng = targ_pt.length(); - - return radius/rng > 0.002; -} - -// +----------------------------------------------------------------------+ - -void -Contact::Reset() -{ - if (Game::GetInstance()->Paused()) return; - - float step_down = (float) (Clock::GetInstance()->Delta() / 10); - - if (d_pas > 0) - d_pas -= step_down; - - if (d_act > 0) - d_act -= step_down; -} - -void -Contact::Merge(Contact* c) -{ - if (c->GetShip() == ship && c->GetShot() == shot) { - if (c->d_pas > d_pas) - d_pas = c->d_pas; - - if (c->d_act > d_act) - d_act = c->d_act; - } -} - -void -Contact::ClearTrack() -{ - delete [] track; - track = 0; - ntrack = 0; -} - -void -Contact::UpdateTrack() -{ - time = Clock::GetInstance()->GameTime(); - - if (shot || (ship && ship->IsGroundUnit())) - return; - - if (!track) { - track = new Point[DEFAULT_TRACK_LENGTH]; - track[0] = loc; - ntrack = 1; - track_time = time; - } - - else if (time - track_time > DEFAULT_TRACK_UPDATE) { - if (loc != track[0]) { - for (int i = DEFAULT_TRACK_LENGTH-2; i >= 0; i--) - track[i+1] = track[i]; - - track[0] = loc; - if (ntrack < DEFAULT_TRACK_LENGTH) ntrack++; - } - - track_time = time; - } -} - -// +----------------------------------------------------------------------+ - -Point -Contact::TrackPoint(int i) const -{ - if (track && i < ntrack) - return track[i]; - - return Point(); -} -- cgit v1.1