Follow-up Comment #1, bug #17958 (project freeciv):
Found the reason why Helicopters, Aircrafts and Triremes cannot autoexplore.
The reason is that "move_type" is not "Sea" nor "Land" but "Both", for these
unit classes.
If you look the following code, you can see that AutoExplore is only
available for "Land" or "Sea" units.
[client/control.c]
void key_unit_auto_explore(void)
{
unit_list_iterate(get_units_in_focus(), punit) {
if (can_unit_do_activity(punit, ACTIVITY_EXPLORE)) {
request_new_unit_activity(punit, ACTIVITY_EXPLORE);
}
} unit_list_iterate_end;
}
[common/client.c]
bool can_unit_do_activity(const struct unit *punit,
enum unit_activity activity)
{
return can_unit_do_activity_targeted(punit, activity, S_LAST, BASE_NONE);
}
bool can_unit_do_activity_targeted(const struct unit *punit,
enum unit_activity activity,
enum tile_special_type target,
Base_type_id base)
{
return can_unit_do_activity_targeted_at(punit, activity, target,
punit->tile, base);
}
bool can_unit_do_activity_targeted_at(const struct unit *punit,
enum unit_activity activity,
enum tile_special_type target,
const struct tile *ptile,
Base_type_id base)
{
[...]
case ACTIVITY_EXPLORE:
return (is_ground_unit(punit) || is_sailing_unit(punit));
[...]
}
[common/movement.c]
bool is_sailing_unittype(const struct unit_type *punittype)
{
return (utype_move_type(punittype) == SEA_MOVING);
}
bool is_ground_unittype(const struct unit_type *punittype)
{
return (utype_move_type(punittype) == LAND_MOVING);
}
On the other end, in order to be able to enter rivers, Trireme must have
move_type = "Both"
May a new "cannot_explore" flag be added in order to manage this?
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<http://gna.org/bugs/?17958>
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