def _near_enough_to_aim(self, target):
# Melee units (range <= 2) shouldn't attack units
# on the other side of a wall.
if not self._can_go(target.x, target.y) \
and self.range <= 2 * PRECISION \
and not target.blocked_exit:
return False
if self.minimal_range and square_of_distance(self.x, self.y, target.x, target.y) < self.minimal_range * self.minimal_range:
return False
d = target.aim_range(self)
return square_of_distance(self.x, self.y, target.x, target.y) < d * d
def update(self):
x, y = self.target
u = self.unit
subsquare = u.world.get_subsquare_id_from_xy
d2 = square_of_distance(x, y, u.x, u.y)
if subsquare(x, y) != subsquare(u.x, u.y):
if u.go_to_xy(x, y):
self.complete()
else:
# try as long as the distance is decreasing
previous_d2 = square_of_distance(x, y, u.x, u.y)
if u.go_to_xy(
x, y) or square_of_distance(x, y, u.x, u.y) > previous_d2:
self.complete()
def object_from_mousepos(self, pos):
self._update_coefs()
x, y = pos
for o in self.interface.dobjets.values():
xo, yo = self._object_coords(o)
if square_of_distance(x, y, xo, yo) <= R2 + 1: # XXX + 1 ?
return o
def object_from_mousepos(self, pos):
self._update_coefs()
x, y = pos
for o in self.interface.dobjets.values():
xo, yo = self._object_coords(o)
if square_of_distance(x, y, xo, yo) <= R2 + 1: # is + 1 necessary?
return o
def _near_enough_to_aim(self, target):
# Melee units shouldn't attack units on the other side of a wall.
if self.is_melee and not self._can_go(
target.place) and not target.blocked_exit:
return False
if self.minimal_range and square_of_distance(
self.x, self.y, target.x,
target.y) < self.minimal_range * self.minimal_range:
return False
range = self.range
if self.is_ballistic and self.height > target.height:
# each height difference has a bonus of 1
bonus = (self.height - target.height) * PRECISION * 1
range += bonus
d = max(self.radius + DISTANCE_MARGIN, range) + target.radius
return square_of_distance(self.x, self.y, target.x, target.y) < d * d
def _already_walked(self, x, y):
n = 0
radius_2 = self.radius * self.radius
for lw, xw, yw, weight in self.walked:
if self.place is lw and square_of_distance(x, y, xw, yw) < radius_2:
n += weight
return n
def _choose_enemy(self, place):
known = self.player.known_enemies(place)
reachable_enemies = [x for x in known if self.can_attack(x)]
if reachable_enemies:
reachable_enemies.sort(key=lambda x: (
-x.menace, square_of_distance(self.x, self.y, x.x, x.y), x.id))
self.action = AttackAction(self, reachable_enemies[0])
return True
def _choose_enemy(self, place):
known = self.player.known_enemies(place)
reachable_enemies = [x for x in known if self.can_attack(x)]
if reachable_enemies:
reachable_enemies.sort(key=lambda x: (- x.value, square_of_distance(self.x, self.y, x.x, x.y), x.id))
self.action_target = reachable_enemies[0] # attack nearest
self.notify("attack") # XXX move this into set_action_target()?
return True
def splash_aim(self, target):
damage_radius_2 = self.damage_radius * self.damage_radius
for o in target.place.objects[:]:
if not self.is_an_enemy(o) and o is not target:
pass # no friendly fire (unless o is the target)
elif isinstance(o, Creature) \
and square_of_distance(o.x, o.y, target.x, target.y) <= damage_radius_2 \
and self.can_attack_if_in_range(o):
self._hit_or_miss(o)
def splash_aim(self, target):
damage_radius_2 = self.damage_radius * self.damage_radius
for o in target.place.objects[:]:
if not self.is_an_enemy(o):
pass # no friendly fire
elif isinstance(o, Creature) \
and square_of_distance(o.x, o.y, target.x, target.y) <= damage_radius_2 \
and self.can_attack_if_in_range(o):
self.hit(o)
def _is_seeing(self, u):
if (u.is_invisible or u.is_cloaked) and u not in self.detected_units:
return
x = u.x
y = u.y
for avp in self.allied_vision:
for avu in self._potential_neighbors(x, y):
radius2 = avu.sight_range * avu.sight_range
if (square_of_distance(avu.x, avu.y, x, y) < radius2
and (avu.sight_range >= self.world.square_width
or u.place in avu.get_observed_squares())):
return True
def _is_seeing(self, u):
if (u.is_invisible or u.is_cloaked) and u not in self.detected_units:
return
x = u.x
y = u.y
for avp in self.allied_vision:
for avu in self._potential_neighbors(x, y):
radius2 = avu.sight_range * avu.sight_range
if (square_of_distance(avu.x, avu.y, x, y) < radius2
and (avu.sight_range >= self.world.square_width
or u.place in avu.get_observed_squares())):
return True
def _near_enough(self, target):
# note: always returns False if the target is a square
if target.place is self.place:
d = self.radius + target.radius + DISTANCE_MARGIN
return square_of_distance(self.x, self.y, target.x,
target.y) < d * d
def nearest_water(self):
places = [sq for sq in self.place.strict_neighbors if sq.is_water]
if places:
return min(
places,
key=lambda sq: square_of_distance(sq.x, sq.y, self.x, self.y))
def _near_enough_to_use(self, target):
if self.is_an_enemy(target):
return self._near_enough_to_aim(target)
elif target.place is self.place:
d = target.use_range(self)
return square_of_distance(self.x, self.y, target.x, target.y) < d * d
