def is_eng_action_valid(self):
road_known = is_tech_known(self.focus.pplayer, 8)
tile_no_river = not TileState.tile_has_extra(self.focus.ptile,
EXTRA_RIVER)
no_road_yet = not TileState.tile_has_extra(self.focus.ptile,
EXTRA_ROAD)
return road_known and tile_no_river and no_road_yet
def can_player_build_unit_direct(pplayer, punittype):
"""
Whether player can build given unit somewhere,
ignoring whether unit is obsolete and assuming the
player has a coastal city.
"""
if not is_tech_known(pplayer, punittype['tech_requirement']):
return False
#FIXME: add support for global advances, check for building reqs etc.*/
return True
def is_dipl_action_valid(self):
self._prep_tech_tree()
if not ActSpySteal.is_dipl_action_valid():
return self.tech_valid
for tech_id in self.focus.rule_ctrl.techs:
tgt_kn = is_tech_known(city_owner(self.pcity), tech_id)
if not tgt_kn:
continue
""" Can steal a tech if the target player knows it and the actor player
* has the pre requirements. Some rulesets allows the player to steal
* techs the player don't know the prereqs of."""
#/* Actor and target player tech known state. */
self.tech_valid[tech_id] = is_tech_prereq_known(
self.focus.pplayer, tech_id)
return self.tech_valid
def is_tech_in_range(target_player, trange, tech):
"""Is there a source tech within range of the target?"""
if trange == REQ_RANGE_PLAYER:
target = TRI_YES if is_tech_known(target_player, tech) else TRI_NO
return target_player != None and target
elif trange in [REQ_RANGE_TEAM, REQ_RANGE_ALLIANCE, REQ_RANGE_WORLD]:
#/* FIXME: Add support for the above ranges. Freeciv's implementation
#* currently (25th Jan 2017) lives in common/requirements.c */
freelog("Unimplemented tech requirement range " + range)
return TRI_MAYBE
elif trange in [
REQ_RANGE_LOCAL, REQ_RANGE_CADJACENT, REQ_RANGE_ADJACENT,
REQ_RANGE_CITY, REQ_RANGE_TRADEROUTE, REQ_RANGE_CONTINENT,
REQ_RANGE_COUNT
]:
freelog("Invalid tech req range " + range)
return TRI_MAYBE
else:
return TRI_MAYBE
def is_action_valid(self):
if not self.rule_ctrl.game_info["trading_tech"]:
return False
return is_tech_known(self.giver, self.value) and \
player_invention_state(self.taker, self.value) in [TECH_UNKNOWN,
TECH_PREREQS_KNOWN]
def is_eng_action_valid(self):
railroad_known = is_tech_known(self.focus.pplayer, 65)
already_road = TileState.tile_has_extra(self.focus.ptile, EXTRA_ROAD)
no_rail_yet = TileState.tile_has_extra(self.focus.ptile, EXTRA_RAIL)
return railroad_known and already_road and no_rail_yet
def is_eng_action_valid(self):
return is_tech_known(self.focus.pplayer, 64)