Function HandleCrashedAircraft

src/aircraft_cmd.cpp:1188–1241

* Handle crashed aircraft \a v. * @param v Crashed aircraft. */

 * @param v Crashed aircraft.
 */
static bool HandleCrashedAircraft(Aircraft *v)
{
	v->crashed_counter += 3;

	Station *st = GetTargetAirportIfValid(v);

	/* make aircraft crash down to the ground */
	if (v->crashed_counter < 500 && st == nullptr && ((v->crashed_counter % 3) == 0)) {
		int z = GetSlopePixelZ(Clamp(v->x_pos, 0, Map::MaxX() * TILE_SIZE), Clamp(v->y_pos, 0, Map::MaxY() * TILE_SIZE));
		v->z_pos -= 1;
		if (v->z_pos <= z) {
			v->crashed_counter = 500;
			v->z_pos = z + 1;
		} else {
			v->crashed_counter = 0;
		}
		SetAircraftPosition(v, v->x_pos, v->y_pos, v->z_pos);
	}

	if (v->crashed_counter < 650) {
		uint32_t r;
		if (Chance16R(1, 32, r)) {
			static const DirDiff delta[] = {
				DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
			};

			v->direction = ChangeDir(v->direction, delta[GB(r, 16, 2)]);
			SetAircraftPosition(v, v->x_pos, v->y_pos, v->z_pos);
			r = Random();
			CreateEffectVehicleRel(v,
				GB(r, 0, 4) - 4,
				GB(r, 4, 4) - 4,
				GB(r, 8, 4),
				EV_EXPLOSION_SMALL);
		}
	} else if (v->crashed_counter >= 10000) {
		/*  remove rubble of crashed airplane */

		/* clear runway-in on all airports, set by crashing plane
		 * small airports use AIRPORT_BUSY, city airports use AirportBlock::RunwayInOut, etc.
		 * but they all share the same number */
		if (st != nullptr) {
			st->airport.blocks.Reset(AirportBlock::RunwayIn);
			st->airport.blocks.Reset(AirportBlock::RunwayInOut); // commuter airport
			st->airport.blocks.Reset(AirportBlock::RunwayIn2);    // intercontinental
		}

		delete v;

		return false;
	}

	return true;
}


/**