prospector/Retreater.js at master · foundrium/prospector · GitHub

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const hlt = require('./hlt');
const constants = require('./constants');

let Retreater = class {
  shouldReturnToBase(ship, dropOffId, game) {
    return (ship.id !== dropOffId &&
           ship.haliteAmount > hlt.constants.MAX_HALITE * (constants.RETREAT_PERCENTAGE / 100)) ||
           (ship.id !== dropOffId &&
           game.turnNumber > 0.94 * hlt.constants.MAX_TURNS &&
           ship.haliteAmount > 90) ||
           (ship.id !== dropOffId &&
            game.turnNumber > 0.90 * hlt.constants.MAX_TURNS &&
            ship.haliteAmount > hlt.constants.MAX_HALITE * (constants.RETREAT_PERCENTAGE / 200));
  }

  retreat(gameMap, player, ship) {
    let shipyardDistance = gameMap.calculateDistance(player.shipyard.position, ship.position);
    let dropOffDistance = 100000;
    let dropOffId = 0;

    if (player.getDropoffs().length > 0) {
      for(let i = 0; i < player.getDropoffs().length; i++) {
        let currentDistance = gameMap.calculateDistance(player.getDropoffs()[i].position, ship.position);
        if(currentDistance < dropOffDistance) {
          dropOffDistance = currentDistance;
          dropOffId = i;
        }
      }
    }

    const destination = shipyardDistance < dropOffDistance ? player.shipyard.position :
                                                             player.getDropoffs()[dropOffId].position;
    const safeMove = gameMap.naiveNavigate(ship, destination);
    return ship.move(safeMove);
  }
}

module.exports = {
  Retreater
};