/**
* Select a destination based on the criteria of our trajectory and desired waypoint.
* @param trajectory the trajectory in question.
* @param nextWaypoint the next logical waypoint in sequence (0 for newly spawned UFOs)
* @param globe The earth globe, required to get access to land checks.
* @param region the ruleset for the region of our mission.
* @return a set of lon and lat coordinates based on the criteria of the trajectory.
*/
std::pair<double, double> AlienMission::getWaypoint(const UfoTrajectory &trajectory, const size_t nextWaypoint, const Globe &globe, const RuleRegion ®ion)
{
/* LOOK MA! NO HANDS!
if (trajectory.getAltitude(nextWaypoint) == "STR_GROUND")
{
return getLandPoint(globe, region, trajectory.getZone(nextWaypoint));
}
else
*/
return region.getRandomPoint(trajectory.getZone(nextWaypoint));
}
/**
* This function is called when one of the mission's UFOs has finished it's time on the ground.
* It takes care of sending the UFO to the next waypoint and marking them for removal as required.
* It must set the game data in a way that the rest of the code understands what to do.
* @param ufo The UFO that reached it's waypoint.
* @param engine The game engine, required to get access to game data and game rules.
* @param globe The earth globe, required to get access to land checks.
*/
void AlienMission::ufoLifting(Ufo &ufo, Game &engine, const Globe &globe)
{
const Ruleset &rules = *engine.getRuleset();
switch (ufo.getStatus())
{
case Ufo::FLYING:
assert(0 && "Ufo is already on the air!");
break;
case Ufo::LANDED:
{
if ((ufo.getRules()->getType() == "STR_HARVESTER" && _rule.getType() == "STR_ALIEN_HARVEST") ||
(ufo.getRules()->getType() == "STR_ABDUCTOR" && _rule.getType() == "STR_ALIEN_ABDUCTION"))
{
addScore(ufo.getLongitude(), ufo.getLatitude(), engine);
}
assert(ufo.getTrajectoryPoint() != ufo.getTrajectory().getWaypointCount() - 1);
ufo.setSpeed((int)(ufo.getRules()->getMaxSpeed() * ufo.getTrajectory().getSpeedPercentage(ufo.getTrajectoryPoint())));
ufo.setAltitude("STR_VERY_LOW");
// Set next waypoint.
Waypoint *wp = new Waypoint();
RuleRegion *region = rules.getRegion(_region);
std::pair<double, double> pos;
if (ufo.getTrajectory().getAltitude(ufo.getTrajectoryPoint() + 1) == "STR_GROUND")
{
pos = getLandPoint(globe, *region, ufo.getTrajectory().getZone(ufo.getTrajectoryPoint() + 1));
}
else
{
pos = region->getRandomPoint(ufo.getTrajectory().getZone(ufo.getTrajectoryPoint() + 1));
}
wp->setLongitude(pos.first);
wp->setLatitude(pos.second);
ufo.setDestination(wp);
ufo.setTrajectoryPoint(ufo.getTrajectoryPoint() + 1);
}
break;
case Ufo::CRASHED:
// Mission expired
ufo.setDetected(false);
ufo.setStatus(Ufo::DESTROYED);
break;
case Ufo::DESTROYED:
assert(0 && "UFO can't fly!");
break;
}
}
/**
* Get a random point inside the given region zone.
* The point will be used to land a UFO, so it HAS to be on land.
*/
std::pair<double, double> AlienMission::getLandPoint(const Globe &globe, const RuleRegion ®ion, size_t zone)
{
int tries = 0;
std::pair<double, double> pos;
do
{
pos = region.getRandomPoint(zone);
++tries;
}
while (!(globe.insideLand(pos.first, pos.second)
&& region.insideRegion(pos.first, pos.second))
&& tries < 100);
if (tries == 100)
{
Log(LOG_DEBUG) << "Region: " << region.getType() << " Longitude: " << pos.first << " Lattitude: " << pos.second << " invalid zone: " << zone << " ufo forced to land on water!";
}
return pos;
}
/**
* This function is called when one of the mission's UFOs arrives at it's current destination.
* It takes care of sending the UFO to the next waypoint, landing UFOs and
* marking them for removal as required. It must set the game data in a way that the rest of the code
* understands what to do.
* @param ufo The UFO that reached it's waypoint.
* @param engine The game engine, required to get access to game data and game rules.
* @param globe The earth globe, required to get access to land checks.
*/
void AlienMission::ufoReachedWaypoint(Ufo &ufo, Game &engine, const Globe &globe)
{
const Ruleset &rules = *engine.getRuleset();
SavedGame &game = *engine.getSavedGame();
if (ufo.getTrajectoryPoint() == ufo.getTrajectory().getWaypointCount() - 1)
{
ufo.setDetected(false);
ufo.setStatus(Ufo::DESTROYED);
return;
}
ufo.setAltitude(ufo.getTrajectory().getAltitude(ufo.getTrajectoryPoint() + 1));
if (ufo.getAltitude() != "STR_GROUND")
{
if (ufo.getLandId() != 0)
{
ufo.setLandId(0);
}
ufo.setTrajectoryPoint(ufo.getTrajectoryPoint() + 1);
// Set next waypoint.
Waypoint *wp = new Waypoint();
RuleRegion *region = rules.getRegion(_region);
ufo.setSpeed((int)(ufo.getRules()->getMaxSpeed() * ufo.getTrajectory().getSpeedPercentage(ufo.getTrajectoryPoint())));
std::pair<double, double> pos;
if (ufo.getTrajectory().getAltitude(ufo.getTrajectoryPoint()) == "STR_GROUND")
{
pos = getLandPoint(globe, *region, ufo.getTrajectory().getZone(ufo.getTrajectoryPoint()));
}
else
{
pos = region->getRandomPoint(ufo.getTrajectory().getZone(ufo.getTrajectoryPoint()));
}
wp->setLongitude(pos.first);
wp->setLatitude(pos.second);
ufo.setDestination(wp);
}
else
{
// UFO landed.
if (ufo.getRules()->getType() == "STR_TERROR_SHIP" && _rule.getType() == "STR_ALIEN_TERROR" && ufo.getTrajectory().getZone(ufo.getTrajectoryPoint()) == 0)
{
// Specialized: STR_ALIEN_TERROR
// Remove UFO, replace with TerrorSite.
addScore(ufo.getLongitude(), ufo.getLatitude(), engine);
ufo.setStatus(Ufo::DESTROYED);
TerrorSite *terrorSite = new TerrorSite();
terrorSite->setLongitude(ufo.getLongitude());
terrorSite->setLatitude(ufo.getLatitude());
terrorSite->setId(game.getId("STR_TERROR_SITE"));
terrorSite->setSecondsRemaining(4 * 3600 + RNG::generate(0, 6) * 3600);
terrorSite->setAlienRace(_race);
const City *city = rules.locateCity(ufo.getLongitude(), ufo.getLatitude());
assert(city);
game.getTerrorSites()->push_back(terrorSite);
for (std::vector<Target*>::iterator t = ufo.getFollowers()->begin(); t != ufo.getFollowers()->end();)
{
Craft* c = dynamic_cast<Craft*>(*t);
if (c && c->getNumSoldiers() != 0)
{
c->setDestination(terrorSite);
t = ufo.getFollowers()->begin();
}
else
{
++t;
}
}
}
else if (_rule.getType() == "STR_ALIEN_RETALIATION" && ufo.getTrajectory().getID() == "__RETALIATION_ASSAULT_RUN")
{
// Ignore what the trajectory might say, this is a base assault.
// Remove UFO, replace with Base defense.
ufo.setDetected(false);
std::vector<Base *>::const_iterator found =
std::find_if(game.getBases()->begin(), game.getBases()->end(),
MatchBaseCoordinates(ufo.getLongitude(), ufo.getLatitude()));
if (found == game.getBases()->end())
{
ufo.setStatus(Ufo::DESTROYED);
// Only spawn mission if the base is still there.
return;
}
ufo.setDestination(*found);
}
else
{
// Set timer for UFO on the ground.
ufo.setSecondsRemaining(ufo.getTrajectory().groundTimer());
if (ufo.getDetected() && ufo.getLandId() == 0)
{
ufo.setLandId(engine.getSavedGame()->getId("STR_LANDING_SITE"));
}
}
}
}
