Function Unit_UpdateMap

src/unit.c:2466–2525

* Update the map around the Unit depending on the type (entering tile, leaving, staying). * @param type The type of action on the map. * @param unit The Unit doing the action. */

 * @param unit The Unit doing the action.
 */
void Unit_UpdateMap(uint16 type, Unit *unit)
{
	const UnitInfo *ui;
	tile32 position;
	uint16 packed;
	Tile *t;
	uint16 radius;

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

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

	if (ui->movementType == MOVEMENT_WINGER) {
		if (type != 0) {
			unit->o.flags.s.isDirty = true;
			g_dirtyAirUnitCount++;
		}

		Map_UpdateAround(g_table_unitInfo[unit->o.type].dimension, unit->o.position, unit, g_functions[0][type]);
		return;
	}

	position = unit->o.position;
	packed = Tile_PackTile(position);
	t = &g_map[packed];

	if (t->isUnveiled || unit->o.houseID == g_playerHouseID) {
		Unit_HouseUnitCount_Add(unit, g_playerHouseID);
	} else {
		Unit_HouseUnitCount_Remove(unit);
	}

	if (type == 1) {
		if (House_AreAllied(Unit_GetHouseID(unit), g_playerHouseID) && !Map_IsPositionUnveiled(packed) && unit->o.type != UNIT_SANDWORM) {
			Tile_RemoveFogInRadius(position, 1);
		}

		if (Object_GetByPackedTile(packed) == NULL) {
			t->index = unit->o.index + 1;
			t->hasUnit = true;
		}
	}

	if (type != 0) {
		unit->o.flags.s.isDirty = true;
		g_dirtyUnitCount++;
	}

	radius = ui->dimension + 3;

	if (unit->o.flags.s.bulletIsBig || unit->o.flags.s.isSmoking || (unit->o.type == UNIT_HARVESTER && unit->actionID == ACTION_HARVEST)) radius = 33;

	Map_UpdateAround(radius, position, unit, g_functions[1][type]);

	if (unit->o.type != UNIT_HARVESTER) return;

	/* The harvester is the only 2x1 unit, so also update tiles in behind us. */
	Map_UpdateAround(radius, unit->targetPreLast, unit, g_functions[1][type]);