Method ok_if_can_move

battlecode-engine/src/world.rs:996–1005

NoSuchUnit - the robot does not exist (within the vision range). TeamNotAllowed - the robot is not on the current player's team. UnitNotOnMap - the robot is not on the map. LocationNotVisible - the location is outside the vision range. LocationOffMap - the location is off the map. LocationNotEmpty - the location is occupied by a unit or terrain.

(&self, robot_id: UnitID, direction: Direction)

    /// * LocationOffMap - the location is off the map.
    /// * LocationNotEmpty - the location is occupied by a unit or terrain.
    fn ok_if_can_move(&self, robot_id: UnitID, direction: Direction) -> Result<(), GameError> {
        let unit = self.my_unit(robot_id)?;
        let new_location = unit.location().map_location()?.add(direction);

        self.ok_if_can_sense_location(new_location)?;
        if !self.is_occupiable(new_location).unwrap() {
            Err(GameError::LocationNotEmpty)?;
        }
        Ok(())
    }

    /// Whether the robot can move in the given direction, without taking into
    /// account the unit's movement heat. Takes into account only the map