Method harvest

battlecode-engine/src/world.rs:1239–1257

Harvests up to the worker's harvest amount of karbonite from the given location, adding it to the team's resource pool. NoSuchUnit - the worker does not exist (within the vision range). TeamNotAllowed - the worker is not on the current player's team. InappropriateUnitType - the unit is not a worker. Overheated - the worker has already performed an action this turn. UnitNotOnMap - the worker is no

(&mut self, worker_id: UnitID, direction: Direction)

    /// * LocationNotVisible - the location is not in the vision range.
    /// * KarboniteDepositEmpty - the location described contains no Karbonite.
    pub fn harvest(&mut self, worker_id: UnitID, direction: Direction)
                   -> Result<(), GameError> {
        self.ok_if_can_harvest(worker_id, direction)?;
        let (harvest_loc, harvest_amount) = {
            let worker = self.my_unit_mut(worker_id).unwrap();
            worker.worker_act();
            (worker.location().map_location().unwrap().add(direction),
                worker.worker_harvest_amount().unwrap())
        };
        let amount_mined = cmp::min(self.karbonite_at(harvest_loc).unwrap(), harvest_amount);
        self.my_team_mut().karbonite += amount_mined;
        self.my_planet_mut().karbonite[harvest_loc.y as usize][harvest_loc.x as usize] -= amount_mined;
        let new_amount = self.karbonite_at(harvest_loc).unwrap();
        self.viewer_changes.push(ViewerDelta::KarboniteChanged {
            location: harvest_loc,
            new_amount: new_amount,
        });
        Ok(())
    }

    fn ok_if_can_blueprint(&self, worker_id: UnitID, unit_type: UnitType,
                         direction: Direction) -> Result<(), GameError> {