Gameplay changes

• Room Controllers now cannot be damaged. However, in case there are no spawns of the owner player in the room left, a countdown timer is started and the Controller starts losing 1 level every 50,000 game ticks. As soon as its level reaches 0, it becomes neutral, and another player can reclaim it.
• Decreased Spawn Reinforcement timer from 3600 to 1000 ticks.
• Decresased TOUGH body part cost from 20 to 10.

API changes

• Added new method Creep.moveByPath.
• Added new property Flag.memory.
• Added new method Flag.setPosition.
• Added new method Flag.setColor.
• The property Flag.roomName is now considered deprecated and will be removed soon. Use Flag.pos.roomName instead.
• Added new property Structure.ticksToDowngrade.

Gameplay changes

• The spawn extension system has been significantly changed. See more info in this post.
• Introduced new structure type: Link. It can instantly transfer energy to another remote Link in the room. Building Lilnks is available at Controller Level 5.
• Maximum hits amount of Ramparts and Walls significantly increased (1000 times). See more info in Territory control.
• Room Controller Level energy requirements decreased 2 times.
• Global Control Level energy requirements decreased 2 times.
• Structures repair power increased 5 times, repair cost decreased 10 times.
• WORK body part cost is now 100.
• Road hits amount increased 10 times.
• Controller hits amount decreased 3 times.
• Increased dropped energy decay speed.

API changes

• Added new method Creep.cancelOrder.
• Added new option noPathFinding in the method Creep.moveTo.
• Changed the default value of heuristicWeight option of the method Creep.moveTo to 1.
• Added new constant STRUCTURE_LINK.
• The constant ERR_NOT_ENOUGH_EXTENSIONS is not equal to ERR_NOT_ENOUGH_ENERGY.
• Added new method Structure.transferEnergy.
• Added new property Structure.cooldown.
• Added new method Spawn.canCreateCreep.

• Added new method Creep.notifyWhenAttacked.

• lodash module updated from 2.4.1 to 3.8.0.

• Breaking change: Game.getUsedCpu method is now synchronous and returns a float number for better precision.
• Game.notify method is now functional.

• Breaking change: Exit objects removed from the game. Now all non-wall border squares (i.e. with x or y equal to 0 or 49) are treated as exits.
• Breaking change: Deprecated methods Game.getRoom, RoomPosition.findNearest and RoomPosition.equalsTo removed from the API.
• Breaking change: All constants removed from the deprecated Game scope. Now they are accessible only through the global scope.
• Added new error constants ERR_RCL_NOT_ENOUGH and ERR_GCL_NOT_ENOUGH.
• Added new structure type constant STRUCTURE_CONTROLLER.
• Added new properties Structure.level, Structure.progressTotal, Structure.ticksToLive.
• Added new property Room.controller.
• Added new methods Creep.claimController, Creep.unclaimController, Creep.upgradeController.
• Healer creeps can now heal themselves.

• Game object prototypes are accessible through the API now:
  • ConstructionSite.prototype
  • Creep.prototype
  • Energy.prototype
  • Exit.prototype
  • Flag.prototype
  • Room.prototype
  • RoomPosition.prototype
  • Source.prototype
  • Spawn.prototype
  • Structure.prototype
  You can use these prototypes to extend game objects behaviour globally.
• All constants are exposed in global scope, without the need to use Game scope.
• All Room.find constants have been renamed using FIND_ prefix:
  • FIND_CREEPS
  • FIND_MY_CREEPS
  • FIND_HOSTILE_CREEPS
  • FIND_SOURCES_ACTIVE
  • FIND_SOURCES
  • FIND_DROPPED_ENERGY
  • FIND_STRUCTURES
  • FIND_MY_STRUCTURES
  • FIND_HOSTILE_STRUCTURES
  • FIND_FLAGS
  • FIND_CONSTRUCTION_SITES
  • FIND_MY_SPAWNS
  • FIND_HOSTILE_SPAWNS
  • FIND_EXIT_TOP
  • FIND_EXIT_RIGHT
  • FIND_EXIT_BOTTOM
  • FIND_EXIT_LEFT
  Old constant names still work, but they are deprecated now and will be removed soon.

• Added new global object Game.map.
• Added new method Room.findExitTo.
• Added new room mode constant MODE_ARENA.
• Added new constant STRUCTURE_PORTAL.

• Diagonal moves are now always allowed, even in case when two adjacent horizontal and vertical squares are blocked.

• Added new property Room.survivalInfo.
• Creeps spawning time now equals to 3 game ticks per each body part.
• Construction sites of non-passable structures are now treated as obstacles by friendly creeps. When any hostile creep walks by, it is immediately destroyed dropping 50% of consumed energy.
• Removed property ConstructionSite.ticksToLive.
• Added new constant STRUCTURE_KEEPER_LAIR.
• Added new property Structure.ticksToSpawn.
• Added new property Room.memory.
• Added new method Room.lookForAt.
• Added new method Room.lookForAtArea.
• Added new method RoomPosition.getRangeTo.
• Method RoomPosition.equalsTo has been renamed to RoomPosition.isEqualTo.