import { TrinketType } from "isaac-typescript-definitions";
export declare function addTrinketCostume(player: EntityPlayer, trinketType: TrinketType): void;
/**
 * Helper function to check to see if any player has a particular trinket.
 *
 * @param trinketType The trinket type to check for.
 * @param ignoreModifiers If set to true, only counts trinkets the player actually holds and ignores
 *                        effects granted by other items. Default is false.
 */
export declare function anyPlayerHasTrinket(trinketType: TrinketType, ignoreModifiers?: boolean): boolean;
/**
 * Returns the slot number corresponding to where a trinket can be safely inserted.
 *
 * For example:
 *
 * ```ts
 * const player = Isaac.GetPlayer();
 * const trinketSlot = getOpenTrinketSlotNum(player);
 * if (trinketSlot !== undefined) {
 *   // They have one or more open trinket slots
 *   player.AddTrinket(TrinketType.SWALLOWED_PENNY);
 * }
 * ```
 */
export declare function getOpenTrinketSlot(player: EntityPlayer): int | undefined;
/**
 * Helper function to get all of the trinkets that the player is currently holding. This will not
 * include any smelted trinkets.
 */
export declare function getPlayerTrinkets(player: EntityPlayer): readonly TrinketType[];
/**
 * Helper function to get only the players that have a certain trinket.
 *
 * This function is variadic, meaning that you can supply as many trinket types as you want to check
 * for. It only returns the players that have all of the trinkets.
 */
export declare function getPlayersWithTrinket(...trinketTypes: TrinketType[]): EntityPlayer[];
/** Helper function to check to see if the player is holding one or more trinkets. */
export declare function hasAnyTrinket(player: EntityPlayer): boolean;
/**
 * Returns whether the player can hold an additional trinket, beyond what they are currently
 * carrying. This takes into account items that modify the max number of trinkets, like Mom's Purse.
 *
 * If the player is the Tainted Soul, this always returns false, since that character cannot pick up
 * items. (Only Tainted Forgotten can pick up items.)
 */
export declare function hasOpenTrinketSlot(player: EntityPlayer): boolean;
/**
 * Helper function to check to see if a player has one or more trinkets.
 *
 * This function is variadic, meaning that you can supply as many trinket types as you want to check
 * for. Returns true if the player has any of the supplied trinket types.
 *
 * This function always passes `false` to the `ignoreModifiers` argument.
 */
export declare function hasTrinket(player: EntityPlayer, ...trinketTypes: TrinketType[]): boolean;
/**
 * Helper function to remove all of the held trinkets from a player.
 *
 * This will not remove any smelted trinkets, unless the player happens to also be holding a trinket
 * that they have smelted. (In that case, both the held and the smelted trinket will be removed.)
 */
export declare function removeAllPlayerTrinkets(player: EntityPlayer): void;
/**
 * Helper function to remove a trinket costume from a player. Use this helper function to avoid
 * having to request the trinket from the item config.
 */
export declare function removeTrinketCostume(player: EntityPlayer, trinketType: TrinketType): void;
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