Method init

src/Battlescape/ExplosionBState.cpp:70–168

* Initializes the explosion. * The animation and sound starts here. * If the animation is finished, the actual effect takes place. */

 * If the animation is finished, the actual effect takes place.
 */
void ExplosionBState::init()
{
	if (_item)
	{
		_power = _item->getRules()->getPower();
		_pistolWhip = (_item->getRules()->getBattleType() != BT_MELEE &&
			_parent->getCurrentAction()->type == BA_HIT);
		if (_pistolWhip)
		{
			_power = _item->getRules()->getMeleePower();
		}
		// since melee aliens don't use a conventional weapon type, we use their strength instead.
		if (_item->getRules()->isStrengthApplied())
		{
			_power += _unit->getStats()->strength;
		}

		_areaOfEffect = _item->getRules()->getBattleType() != BT_MELEE &&
						_item->getRules()->getExplosionRadius() != 0 &&
						!_pistolWhip;
	}
	else if (_tile)
	{
		_power = _tile->getExplosive();
		_areaOfEffect = true;
	}
	else if (_unit && _unit->getSpecialAbility() == SPECAB_EXPLODEONDEATH)
	{
		_power = _parent->getRuleset()->getItem(_unit->getArmor()->getCorpseGeoscape())->getPower();
		_areaOfEffect = true;
	}
	else
	{
		_power = 120;
		_areaOfEffect = true;
	}

	Tile *t = _parent->getSave()->getTile(Position(_center.x/16, _center.y/16, _center.z/24));
	if (_areaOfEffect)
	{
		if (_power)
		{
			int frame = 0;
			int counter = std::max(1, (_power/5) / 5);
			for (int i = 0; i < _power/5; i++)
			{
				int X = RNG::generate(-_power/2,_power/2);
				int Y = RNG::generate(-_power/2,_power/2);
				Position p = _center;
				p.x += X; p.y += Y;
				Explosion *explosion = new Explosion(p, frame, true);
				// add the explosion on the map
				_parent->getMap()->getExplosions()->push_back(explosion);
				if (i > 0 && i % counter == 0)
				{
					--frame;
				}
			}