Function Unit_Move

src/unit.c:1286–1520

* Moves the given unit. * * @param unit The Unit to move. * @param distance The maximum distance to pass through. * @return ??. */

 * @return ??.
 */
bool Unit_Move(Unit *unit, uint16 distance)
{
	const UnitInfo *ui;
	uint16 d;
	uint16 packed;
	tile32 newPosition;
	bool ret;
	tile32 currentDestination;
	bool isSpiceBloom = false;
	bool isSpecialBloom = false;

	if (unit == NULL || !unit->o.flags.s.used) return false;

	ui = &g_table_unitInfo[unit->o.type];

	newPosition = Tile_MoveByDirection(unit->o.position, unit->orientation[0].current, distance);

	if ((newPosition.x == unit->o.position.x) && (newPosition.y == unit->o.position.y)) return false;

	if (!Tile_IsValid(newPosition)) {
		if (!ui->flags.mustStayInMap) {
			Unit_Remove(unit);
			return true;
		}

		if (unit->o.flags.s.byScenario && unit->o.linkedID == 0xFF && unit->o.script.variables[4] == 0) {
			Unit_Remove(unit);
			return true;
		}

		newPosition = unit->o.position;
		Unit_SetOrientation(unit, unit->orientation[0].current + (Tools_Random_256() & 0xF), false, 0);
	}

	unit->wobbleIndex = 0;
	if (ui->flags.canWobble && unit->o.flags.s.isWobbling) {
		unit->wobbleIndex = Tools_Random_256() & 7;
	}

	d = Tile_GetDistance(newPosition, unit->currentDestination);
	packed = Tile_PackTile(newPosition);

	if (ui->flags.isTracked && d < 48) {
		Unit *u;
		u = Unit_Get_ByPackedTile(packed);

		/* Driving over a foot unit */
		if (u != NULL && g_table_unitInfo[u->o.type].movementType == MOVEMENT_FOOT && u->o.flags.s.allocated) {
			if (u == g_unitSelected) Unit_Select(NULL);

			Unit_UntargetMe(u);
			u->o.script.variables[1] = 1;
			Unit_SetAction(u, ACTION_DIE);
		} else {
			uint16 type = Map_GetLandscapeType(packed);
			/* Produce tracks in the sand */
			if ((type == LST_NORMAL_SAND || type == LST_ENTIRELY_DUNE) && g_map[packed].overlayTileID == 0) {
				uint8 animationID = Orientation_Orientation256ToOrientation8(unit->orientation[0].current);