def get_nearest_control_point(self, position):
"""Find and return the control point with the closest linear distance (i.e. ignoring any obstacles/walls;
"as the crow flies") to the given point. If no control points on the map, returns None.
:param position: The Point to look from
"""
if len(self.control_points) == 0:
return None
return min(self.control_points,
key=lambda control_point: chebyshev_distance(
control_point.position, position))
def get_distance_to_shooter(enemy):
if enemy.health <= 0 or direction.from_to(
shooter.position, enemy.position) != direction:
return MAX_DISTANCE_INT
distance = chebyshev_distance(shooter.position, enemy.position)
if not self.can_shooter_shoot_target(
shooter.position, enemy.position,
shooter.current_weapon_type.get_range()):
return MAX_DISTANCE_INT
return distance
def can_shooter_shoot_target(self,
shooter_pos,
target_pos,
max_distance=MAX_DISTANCE_INT):
"""
Returns true iff there is a clear line of fire from shooter to
target. This takes walls into account.
:param (int,int) shooter_pos: The source of the shot
:param (int,int) target_pos: The target of the shot
:param int max_distance: Maximum distance in tiles that the bullet can travel
"""
if shooter_pos == target_pos or max_distance <= 0 \
or not self.is_within_bounds(shooter_pos) or not self.is_within_bounds(target_pos) \
or not are_points_inline(shooter_pos, target_pos) \
or self.get_tile(shooter_pos).does_block_movement() or self.get_tile(target_pos).does_block_movement():
return False
shot_direction = Direction.from_to(shooter_pos, target_pos)
distance = chebyshev_distance(shooter_pos, target_pos)
return max_distance >= distance == self._ray_cast_distance(
shooter_pos, shot_direction, False, True, distance)
def get_num_enemy_units_around(self):
"""
Returns the number of enemy units that are on tiles adjacent to or on this control point.
"""
return len([enemy for enemy in self._enemies if
(enemy.health > 0 and chebyshev_distance(enemy.position, self.position) <= 1)])