Function Unit_GetTargetUnitPriority

src/unit.c:743–781

* Get the priority a target unit has for a given unit. The higher the value, * the more serious it should look at the target. * * @param unit The unit looking at a target. * @param target The unit to look at. * @return The priority of the target. */

 * @return The priority of the target.
 */
uint16 Unit_GetTargetUnitPriority(Unit *unit, Unit *target)
{
	const UnitInfo *targetInfo;
	const UnitInfo *unitInfo;
	uint16 distance;
	uint16 priority;

	if (unit == NULL || target == NULL) return 0;
	if (unit == target) return 0;

	if (!target->o.flags.s.allocated) return 0;
	if ((target->o.seenByHouses & (1 << Unit_GetHouseID(unit))) == 0) return 0;

	if (House_AreAllied(Unit_GetHouseID(unit), Unit_GetHouseID(target))) return 0;

	unitInfo   = &g_table_unitInfo[unit->o.type];
	targetInfo = &g_table_unitInfo[target->o.type];

	if (!targetInfo->o.flags.priority) return 0;

	if (targetInfo->movementType == MOVEMENT_WINGER) {
		if (!unitInfo->o.flags.targetAir) return 0;
		if (target->o.houseID == g_playerHouseID && !Map_IsPositionUnveiled(Tile_PackTile(target->o.position))) return 0;
	}

	if (!Map_IsValidPosition(Tile_PackTile(target->o.position))) return 0;

	distance = Tile_GetDistanceRoundedUp(unit->o.position, target->o.position);

	if (!Map_IsValidPosition(Tile_PackTile(unit->o.position))) {
		if (targetInfo->fireDistance >= distance) return 0;
	}

	priority = targetInfo->o.priorityTarget + targetInfo->o.priorityBuild;
	if (distance != 0) priority = (priority / distance) + 1;

	if (priority > 0x7D00) return 0x7D00;
	return priority;
}

/**
 * Finds the closest refinery a harvester can go to.