Method think

src/Savegame/AlienMission.cpp:153–204

};

void AlienMission::think(Game &engine, const Globe &globe)
{
	const Ruleset &ruleset = *engine.getRuleset();
	SavedGame &game = *engine.getSavedGame();
	if (_nextWave >= _rule.getWaveCount())
		return;
	if (_spawnCountdown > 30)
	{
		_spawnCountdown -= 30;
		return;
	}
	const MissionWave &wave = _rule.getWave(_nextWave);
	RuleUfo &ufoRule = *ruleset.getUfo(wave.ufoType);
	const UfoTrajectory &trajectory = *ruleset.getUfoTrajectory(wave.trajectory);
	Ufo *ufo = spawnUfo(game, ruleset, globe, ufoRule, trajectory);
	if (ufo)
	{
		//Some missions may not spawn a UFO!
		game.getUfos()->push_back(ufo);
	}
	++_nextUfoCounter;
	if (_nextUfoCounter == wave.ufoCount)
	{
		_nextUfoCounter = 0;
		++_nextWave;
	}
	if (_rule.getType() == "STR_ALIEN_INFILTRATION" && _nextWave == _rule.getWaveCount())
	{
		for (std::vector<Country*>::iterator c = game.getCountries()->begin(); c != game.getCountries()->end(); ++c)
		{
			if (!(*c)->getPact() && !(*c)->getNewPact() && ruleset.getRegion(_region)->insideRegion((*c)->getRules()->getLabelLongitude(), (*c)->getRules()->getLabelLatitude()))
			{
				(*c)->setNewPact();
				spawnAlienBase(globe, engine);
				break;
			}
		}


		// Infiltrations loop for ever.
		_nextWave = 0;
	}
	if (_rule.getType() == "STR_ALIEN_BASE" && _nextWave == _rule.getWaveCount())
	{
		spawnAlienBase(globe, engine);
	}
	if (_nextWave != _rule.getWaveCount())
	{
		size_t spawnTimer = _rule.getWave(_nextWave).spawnTimer / 30;
		_spawnCountdown = (spawnTimer/2 + RNG::generate(0, spawnTimer)) * 30;
	}
}

/**
 * This function will spawn a UFO according the the mission rules.