screepers · tiennou · Jan 25, 2025
diff --git a/dist/index.d.ts b/dist/index.d.ts
diff --git a/dist/screeps-tests.ts b/dist/screeps-tests.ts
@@ -609,7 +609,7 @@ function resources(o: GenericStore): ResourceConstant[] {
     const exits = room.find(FIND_EXIT);
 
     const creepsHere = room.lookForAt(LOOK_CREEPS, 10, 10);
-    creepsHere[0].getActiveBodyparts(ATTACK);
+    if (creepsHere !== ERR_INVALID_ARGS) creepsHere[0].getActiveBodyparts(ATTACK);
 
     const towers = room.find<StructureTower>(FIND_MY_STRUCTURES, {
         filter: (structure) => {

diff --git a/src/creep.ts b/src/creep.ts
@@ -125,7 +125,7 @@ interface Creep extends RoomObject {
      * - ERR_NOT_IN_RANGE: The target is too far away.
      * - ERR_NO_BODYPART: There are no ATTACK body parts in this creep’s body.
      */
-    attack(target: AnyCreep | Structure): CreepActionReturnCode;
+    attack(target: AnyCreep | Structure): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_INVALID_TARGET | ERR_NOT_IN_RANGE | ERR_NO_BODYPART;
     /**
      * Attack a controller.
      *
@@ -143,7 +143,7 @@ interface Creep extends RoomObject {
      * - ERR_TIRED: You have to wait until the next attack is possible.
      * - ERR_NO_BODYPART: There are not enough CLAIM body parts in this creep’s body.
      */
-    attackController(target: StructureController): CreepActionReturnCode;
+    attackController(target: StructureController): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_INVALID_TARGET | ERR_NOT_IN_RANGE | ERR_TIRED | ERR_NO_BODYPART;
     /**
      * Build a structure at the target construction site using carried energy.
      *
@@ -160,7 +160,7 @@ interface Creep extends RoomObject {
      * - ERR_NOT_IN_RANGE: The target is too far away.
      * - ERR_NO_BODYPART: There are no WORK body parts in this creep’s body.
      */
-    build(target: ConstructionSite): CreepActionReturnCode | ERR_NOT_ENOUGH_RESOURCES | ERR_RCL_NOT_ENOUGH;
+    build(target: ConstructionSite): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_NOT_ENOUGH_RESOURCES | ERR_INVALID_TARGET | ERR_NOT_IN_RANGE | ERR_NO_BODYPART;
     /**
      * Cancel the order given during the current game tick.
      * @param methodName The name of a creep's method to be cancelled.
@@ -188,7 +188,7 @@ interface Creep extends RoomObject {
      * - ERR_NO_BODYPART: There are no CLAIM body parts in this creep’s body.
      * - ERR_GCL_NOT_ENOUGH: Your Global Control Level is not enough.
      */
-    claimController(target: StructureController): CreepActionReturnCode | ERR_FULL | ERR_GCL_NOT_ENOUGH;
+    claimController(target: StructureController): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_INVALID_TARGET | ERR_FULL | ERR_NOT_IN_RANGE | ERR_NO_BODYPART | ERR_GCL_NOT_ENOUGH;
     /**
      * Dismantles any structure that can be constructed (even hostile) returning 50% of the energy spent on its repair.
      *
@@ -204,7 +204,7 @@ interface Creep extends RoomObject {
      * - ERR_NOT_IN_RANGE: The target is too far away.
      * - ERR_NO_BODYPART: There are no WORK body parts in this creep’s body.
      */
-    dismantle(target: Structure): CreepActionReturnCode;
+    dismantle(target: Structure): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_INVALID_TARGET | ERR_NOT_IN_RANGE | ERR_NO_BODYPART;
     /**
      * Drop this resource on the ground.
      *
@@ -217,7 +217,7 @@ interface Creep extends RoomObject {
      * - ERR_NOT_ENOUGH_RESOURCES: The creep does not have the given amount of resources.
      * - ERR_INVALID_ARGS: The resourceType is not a valid RESOURCE_* constants.
      */
-    drop(resourceType: ResourceConstant, amount?: number): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_NOT_ENOUGH_RESOURCES;
+    drop(resourceType: ResourceConstant, amount?: number): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_NOT_ENOUGH_RESOURCES | ERR_INVALID_ARGS;
     /**
      * Add one more available safe mode activation to a room controller.
      *
@@ -231,7 +231,7 @@ interface Creep extends RoomObject {
      * - ERR_INVALID_TARGET: The target is not a valid controller object.
      * - ERR_NOT_IN_RANGE: The target is too far away.
      */
-    generateSafeMode(target: StructureController): CreepActionReturnCode;
+    generateSafeMode(target: StructureController): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_NOT_ENOUGH_RESOURCES | ERR_INVALID_TARGET | ERR_NOT_IN_RANGE;
     /**
      * Get the quantity of live body parts of the given type.
      *
@@ -259,7 +259,7 @@ interface Creep extends RoomObject {
      * - ERR_TIRED: The extractor or the deposit is still cooling down.
      * - ERR_NO_BODYPART: There are no WORK body parts in this creep’s body.
      */
-    harvest(target: Source | Mineral | Deposit): CreepActionReturnCode | ERR_NOT_FOUND | ERR_NOT_ENOUGH_RESOURCES;
+    harvest(target: Source | Mineral | Deposit): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_NOT_FOUND | ERR_NOT_ENOUGH_RESOURCES | ERR_INVALID_TARGET | ERR_NOT_IN_RANGE | ERR_TIRED | ERR_NO_BODYPART;
     /**
      * Heal self or another creep.
      *
@@ -277,7 +277,7 @@ interface Creep extends RoomObject {
      * - ERR_NOT_IN_RANGE: The target is too far away.
      * - ERR_NO_BODYPART: There are no HEAL body parts in this creep’s body.
      */
-    heal(target: AnyCreep): CreepActionReturnCode;
+    heal(target: AnyCreep): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_INVALID_TARGET | ERR_NOT_IN_RANGE | ERR_NO_BODYPART;
     /**
      * Move the creep one square in the specified direction or towards a creep that is pulling it.
      *
@@ -293,7 +293,7 @@ interface Creep extends RoomObject {
      * - ERR_TIRED: The fatigue indicator of the creep is non-zero.
      * - ERR_NO_BODYPART: There are no MOVE body parts in this creep’s body.
      */
-    move(direction: DirectionConstant): CreepMoveReturnCode;
+    move(direction: DirectionConstant): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_INVALID_ARGS | ERR_TIRED | ERR_NO_BODYPART;
     move(target: Creep): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_NOT_IN_RANGE | ERR_INVALID_ARGS;
     /**
      * Move the creep using the specified predefined path.
@@ -353,7 +353,7 @@ interface Creep extends RoomObject {
      * - ERR_NOT_IN_RANGE: The target is too far away.
      * - ERR_NO_BODYPART: There are no CARRY body parts in this creep’s body.
      */
-    pickup(target: Resource): CreepActionReturnCode | ERR_FULL;
+    pickup(target: Resource): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_INVALID_TARGET | ERR_FULL | ERR_NOT_IN_RANGE | ERR_NO_BODYPART;
     /**
      * Allow another creep to follow this creep.
      *
@@ -387,7 +387,7 @@ interface Creep extends RoomObject {
      * - ERR_NOT_IN_RANGE: The target is too far away.
      * - ERR_NO_BODYPART: There are no RANGED_ATTACK body parts in this creep’s body.
      */
-    rangedAttack(target: AnyCreep | Structure): CreepActionReturnCode;
+    rangedAttack(target: AnyCreep | Structure): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_INVALID_TARGET | ERR_NOT_IN_RANGE | ERR_NO_BODYPART;
     /**
      * Heal another creep at a distance.
      *
@@ -403,7 +403,7 @@ interface Creep extends RoomObject {
      * - ERR_NOT_IN_RANGE: The target is too far away.
      * - ERR_NO_BODYPART: There are no HEAL body parts in this creep’s body.
      */
-    rangedHeal(target: AnyCreep): CreepActionReturnCode;
+    rangedHeal(target: AnyCreep): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_INVALID_TARGET | ERR_NOT_IN_RANGE | ERR_NO_BODYPART;
     /**
      * A ranged attack against all hostile creeps or structures within 3 squares range.
      *
@@ -429,7 +429,9 @@ interface Creep extends RoomObject {
      * - ERR_NOT_IN_RANGE: The target is too far away.
      * - ERR_NO_BODYPART: There are no WORK body parts in this creep’s body.
      */
-    repair(target: Structure): CreepActionReturnCode | ERR_NOT_ENOUGH_RESOURCES;
+    repair(
+        target: Structure,
+    ): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_NOT_ENOUGH_RESOURCES | ERR_INVALID_TARGET | ERR_NOT_IN_RANGE | ERR_NO_BODYPART;
     /**
      * Temporarily block a neutral controller from claiming by other players.
      *
@@ -447,7 +449,7 @@ interface Creep extends RoomObject {
      * - ERR_NOT_IN_RANGE: The target is too far away.
      * - ERR_NO_BODYPART: There are no CLAIM body parts in this creep’s body.
      */
-    reserveController(target: StructureController): CreepActionReturnCode;
+    reserveController(target: StructureController): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_INVALID_TARGET | ERR_NOT_IN_RANGE | ERR_NO_BODYPART;
     /**
      * Display a visual speech balloon above the creep with the specified message.
      *
@@ -504,7 +506,11 @@ interface Creep extends RoomObject {
      * - ERR_NOT_IN_RANGE: The target is too far away.
      * - ERR_INVALID_ARGS: The resourceType is not one of the {@link ResourceConstant RESOURCE_*} constants, or the amount is incorrect.
      */
-    transfer(target: AnyCreep | Structure, resourceType: ResourceConstant, amount?: number): ScreepsReturnCode;
+    transfer(
+        target: AnyCreep | Structure,
+        resourceType: ResourceConstant,
+        amount?: number,
+    ): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_NOT_ENOUGH_RESOURCES | ERR_INVALID_TARGET | ERR_FULL | ERR_NOT_IN_RANGE | ERR_INVALID_ARGS;
     /**
      * Upgrade your controller to the next level using carried energy.
      *
@@ -526,7 +532,9 @@ interface Creep extends RoomObject {
      * - ERR_NOT_IN_RANGE: The target is too far away.
      * - ERR_NO_BODYPART: There are no WORK body parts in this creep’s body.
      */
-    upgradeController(target: StructureController): ScreepsReturnCode;
+    upgradeController(
+        target: StructureController,
+    ): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_NOT_ENOUGH_RESOURCES | ERR_INVALID_TARGET | ERR_NOT_IN_RANGE | ERR_NO_BODYPART;
     /**
      * Withdraw resources from a structure, a tombstone or a ruin.
      *
@@ -549,7 +557,11 @@ interface Creep extends RoomObject {
      * - ERR_NOT_IN_RANGE: The target is too far away.
      * - ERR_INVALID_ARGS: The resourceType is not one of the {@link ResourceConstant RESOURCE_*} constants, or the amount is incorrect.
      */
-    withdraw(target: Structure | Tombstone | Ruin, resourceType: ResourceConstant, amount?: number): ScreepsReturnCode;
+    withdraw(
+        target: Structure | Tombstone | Ruin,
+        resourceType: ResourceConstant,
+        amount?: number,
+    ): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_NOT_ENOUGH_RESOURCES | ERR_INVALID_TARGET | ERR_FULL | ERR_NOT_IN_RANGE | ERR_INVALID_ARGS;
 }
 
 interface CreepConstructor extends _Constructor<Creep>, _ConstructorById<Creep> {}

diff --git a/src/market.ts b/src/market.ts
@@ -47,7 +47,7 @@ interface Market {
      * - OK: The operation has been scheduled successfully.
      * - ERR_INVALID_ARGS: The order ID is not valid.
      */
-    cancelOrder(orderId: string): ScreepsReturnCode;
+    cancelOrder(orderId: string): OK | ERR_INVALID_ARGS;
     /**
      * Change the price of an existing order.
      *
@@ -60,7 +60,7 @@ interface Market {
      * - ERR_NOT_ENOUGH_RESOURCES: You don't have enough credits to pay a fee.
      * - ERR_INVALID_ARGS: The arguments provided are invalid.
      */
-    changeOrderPrice(orderId: string, newPrice: number): ScreepsReturnCode;
+    changeOrderPrice(orderId: string, newPrice: number): OK | ERR_NOT_OWNER | ERR_NOT_ENOUGH_RESOURCES | ERR_INVALID_ARGS;
     /**
      * Create a market order in your terminal.
      *
@@ -103,7 +103,11 @@ interface Market {
      * - ERR_INVALID_ARGS: The arguments provided are invalid.
      * - ERR_TIRED: The target terminal is still cooling down.
      */
-    deal(orderId: string, amount: number, yourRoomName?: string): ScreepsReturnCode;
+    deal(
+        orderId: string,
+        amount: number,
+        yourRoomName?: string,
+    ): OK | ERR_NOT_OWNER | ERR_NOT_ENOUGH_RESOURCES | ERR_FULL | ERR_INVALID_ARGS | ERR_TIRED;
     /**
      * Add more capacity to an existing order.
      *
@@ -117,7 +121,7 @@ interface Market {
      * - ERR_NOT_ENOUGH_RESOURCES: You don't have enough credits to pay a fee.
      * - ERR_INVALID_ARGS:  The arguments provided are invalid.
      */
-    extendOrder(orderId: string, addAmount: number): ScreepsReturnCode;
+    extendOrder(orderId: string, addAmount: number): OK | ERR_NOT_ENOUGH_RESOURCES | ERR_INVALID_ARGS;
     /**
      * Get other players' orders currently active on the market.
      * @param filter (optional) An object or function that will filter the resulting list using the lodash.filter method.

diff --git a/src/path-finder.ts b/src/path-finder.ts
@@ -155,7 +155,7 @@ interface CostMatrix {
      * @param y Y position in the room.
      * @param cost Cost of this position. Must be a whole number. A cost of 0 will use the terrain cost for that tile. A cost greater than or equal to 255 will be treated as unwalkable.
      */
-    set(x: number, y: number, cost: number): undefined;
+    set(x: number, y: number, cost: number): void;
     /**
      * Get the cost of a position in this CostMatrix.
      * @param x X position in the room.

diff --git a/src/power-creep.ts b/src/power-creep.ts
@@ -134,7 +134,7 @@ interface PowerCreep extends RoomObject {
      * - ERR_NOT_ENOUGH_RESOURCES: The creep does not have the given amount of energy.
      * - ERR_INVALID_ARGS: The resourceType is not a valid {@link ResourceConstant RESOURCE_*} constants.
      */
-    drop(resourceType: ResourceConstant, amount?: number): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_NOT_ENOUGH_RESOURCES;
+    drop(resourceType: ResourceConstant, amount?: number): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_NOT_ENOUGH_RESOURCES | ERR_INVALID_ARGS;
     /**
      * Enable power usage in this room.
      *
@@ -159,7 +159,7 @@ interface PowerCreep extends RoomObject {
      * - ERR_NOT_IN_RANGE: The target creep is too far away
      * - ERR_INVALID_ARGS: The provided direction is incorrect.
      */
-    move(direction: DirectionConstant): CreepMoveReturnCode;
+    move(direction: DirectionConstant): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_NOT_IN_RANGE | ERR_INVALID_ARGS;
     move(target: Creep): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_NOT_IN_RANGE | ERR_INVALID_ARGS;
     /**
      * Move the creep using the specified predefined path.
@@ -173,7 +173,7 @@ interface PowerCreep extends RoomObject {
      * - ERR_NOT_FOUND: The specified path doesn't match the creep's location.
      * - ERR_INVALID_ARGS: path is not a valid path array.
      */
-    moveByPath(path: PathStep[] | RoomPosition[] | string): CreepMoveReturnCode | ERR_NOT_FOUND | ERR_INVALID_ARGS;
+    moveByPath(path: PathStep[] | RoomPosition[] | string): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_NOT_FOUND | ERR_INVALID_ARGS;
     /**
      * Find the optimal path to the target within the same room and move to it.
      *
@@ -196,7 +196,7 @@ interface PowerCreep extends RoomObject {
     moveTo(
         target: RoomPosition | { pos: RoomPosition },
         opts?: MoveToOpts,
-    ): CreepMoveReturnCode | ERR_NO_PATH | ERR_INVALID_TARGET | ERR_NOT_FOUND;
+    ): OK | ERR_NOT_OWNER | ERR_NO_PATH | ERR_BUSY | ERR_NOT_FOUND | ERR_INVALID_TARGET;
     /**
      * Toggle auto notification when the creep is under attack.
      *
@@ -222,7 +222,7 @@ interface PowerCreep extends RoomObject {
      * - ERR_FULL: The creep cannot receive any more resource.
      * - ERR_NOT_IN_RANGE: The target is too far away.
      */
-    pickup(target: Resource): CreepActionReturnCode | ERR_FULL;
+    pickup(target: Resource): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_INVALID_TARGET | ERR_FULL | ERR_NOT_IN_RANGE;
     /**
      * Rename the power creep.
      *
@@ -300,7 +300,11 @@ interface PowerCreep extends RoomObject {
      * - ERR_NOT_IN_RANGE: The target is too far away.
      * - ERR_INVALID_ARGS: The resourceType is not one of the {@link ResourceConstant RESOURCE_*} constants, or the amount is incorrect.
      */
-    transfer(target: AnyCreep | Structure, resourceType: ResourceConstant, amount?: number): ScreepsReturnCode;
+    transfer(
+        target: AnyCreep | Structure,
+        resourceType: ResourceConstant,
+        amount?: number,
+    ): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_NOT_ENOUGH_RESOURCES | ERR_INVALID_TARGET | ERR_FULL | ERR_NOT_IN_RANGE | ERR_INVALID_ARGS;
     /**
      * Upgrade the creep, adding a new power ability to it or increasing the level of the existing power.
      *
@@ -331,7 +335,20 @@ interface PowerCreep extends RoomObject {
      * - ERR_TIRED: The power ability is still on cooldown.
      * - ERR_NO_BODYPART: The creep doesn't have the specified power ability.
      */
-    usePower(power: PowerConstant, target?: RoomObject): ScreepsReturnCode;
+    usePower(
+        power: PowerConstant,
+        target?: RoomObject,
+    ):
+        | OK
+        | ERR_NOT_OWNER
+        | ERR_BUSY
+        | ERR_NOT_ENOUGH_RESOURCES
+        | ERR_INVALID_TARGET
+        | ERR_FULL
+        | ERR_NOT_IN_RANGE
+        | ERR_INVALID_ARGS
+        | ERR_TIRED
+        | ERR_NO_BODYPART;
     /**
      * Withdraw resources from a structure, tombstone, or ruin.
      *
@@ -353,7 +370,11 @@ interface PowerCreep extends RoomObject {
      * - ERR_NOT_IN_RANGE: The target is too far away.
      * - ERR_INVALID_ARGS: The resourceType is not one of the {@link ResourceConstant RESOURCE_*} constants, or the amount is incorrect.
      */
-    withdraw(target: Structure | Tombstone | Ruin, resourceType: ResourceConstant, amount?: number): ScreepsReturnCode;
+    withdraw(
+        target: Structure | Tombstone | Ruin,
+        resourceType: ResourceConstant,
+        amount?: number,
+    ): OK | ERR_NOT_OWNER | ERR_BUSY | ERR_NOT_ENOUGH_RESOURCES | ERR_INVALID_TARGET | ERR_FULL | ERR_NOT_IN_RANGE | ERR_INVALID_ARGS;
 }
 
 interface PowerCreepConstructor extends _Constructor<PowerCreep>, _ConstructorById<PowerCreep> {

diff --git a/src/raw-memory.ts b/src/raw-memory.ts
@@ -56,7 +56,7 @@ interface RawMemory {
      * @param ids An array of segment IDs.
      * @throws if `ids` isn't an array, more than 10 segments are active, or the ids aren't all integers.
      */
-    setActiveSegments(ids: number[]): undefined;
+    setActiveSegments(ids: number[]): void;
     /**
      * Request a memory segment of another user.
      *

diff --git a/src/room-position.ts b/src/room-position.ts
@@ -31,7 +31,9 @@ interface RoomPosition {
      * - ERR_INVALID_ARGS: The location is incorrect.
      * - ERR_RCL_NOT_ENOUGH: Room Controller Level insufficient.
      */
-    createConstructionSite(structureType: BuildableStructureConstant): ScreepsReturnCode;
+    createConstructionSite(
+        structureType: BuildableStructureConstant,
+    ): OK | ERR_NOT_OWNER | ERR_INVALID_TARGET | ERR_FULL | ERR_INVALID_ARGS | ERR_RCL_NOT_ENOUGH;
     /**
      * Create a new {@link ConstructionSite} at the specified location.
      * @param structureType One of {@link BuildableStructureConstant Buildable STRUCTURE_*}.
@@ -44,7 +46,10 @@ interface RoomPosition {
      * - ERR_INVALID_ARGS: The location is incorrect.
      * - ERR_RCL_NOT_ENOUGH: Room Controller Level insufficient.
      */
-    createConstructionSite(structureType: STRUCTURE_SPAWN, name?: string): ScreepsReturnCode;
+    createConstructionSite(
+        structureType: STRUCTURE_SPAWN,
+        name?: string,
+    ): OK | ERR_NOT_OWNER | ERR_INVALID_TARGET | ERR_FULL | ERR_INVALID_ARGS | ERR_RCL_NOT_ENOUGH;
     /**
      * Create a new {@link Flag} at the specified location.
      * @param name The name of a new flag.