Freeciv

An action that can block another blocks when it is forced and possible.

**************************************************************************/

const struct unit *actor_unit,

const struct tile *target_tile_arg,

const struct city *target_city_arg,

const struct city *target_city

= blocked_find_target_city(act, actor_unit, target_tile,

target_city_arg, target_unit);

action_iterate(blocker_id) {

struct action *blocker = action_by_number(blocker_id);

break;

}

target->tile, target->city, target->unit)) {

/* Allows an action to block an other action. If a blocking action is

* legal the actions it blocks becomes illegal. */

/* Doesn't leak information since it must be 100% certain from the

* player's perspective that the blocking action is legal. */

city_tile(target_city), target_city, NULL)) {

/* Don't offer to perform an action known to be blocked. */

return ACTPROB_IMPOSSIBLE;

/* Doesn't leak information since it must be 100% certain from the

* player's perspective that the blocking action is legal. */

unit_list_iterate(target_tile->units, target_unit) {

target_tile, tile_city(target_tile),

target_unit)) {

/* Don't offer to perform an action known to be blocked. */

const struct unit_type *act_utype);

bool action_enabler_possible_actor(const struct action_enabler *ae);

const struct unit *actor_unit,

const struct tile *target_tile,

const struct city *target_city,

can_upgrade_unittype(

act_player, act_utype));

} else if (paction

target_tile, target_city,

target_unit))) {

explnat->kind = ANEK_ACTION_BLOCKS;