import type { ContentsFlag } from '../bsp/contents.js';
import { type Vec3 } from '../math/vec3.js';
import { WaterLevel } from './constants.js';
import type { PmoveCmd, PmoveTraceFn } from './types.js';
export interface WaterCurrentParams {
    readonly watertype: ContentsFlag;
    readonly waterlevel: WaterLevel;
    readonly onGround: boolean;
    readonly waterSpeed: number;
}
export interface GroundCurrentParams {
    readonly groundContents: ContentsFlag;
    readonly scale?: number;
}
export interface AddCurrentsParams {
    readonly wishVelocity: Vec3;
    readonly onLadder: boolean;
    readonly onGround: boolean;
    readonly waterlevel: WaterLevel;
    readonly watertype: ContentsFlag;
    readonly groundContents: ContentsFlag;
    readonly cmd: PmoveCmd;
    readonly viewPitch: number;
    readonly maxSpeed: number;
    readonly ladderMod: number;
    readonly waterSpeed: number;
    readonly forward: Vec3;
    readonly origin: Vec3;
    readonly mins: Vec3;
    readonly maxs: Vec3;
    readonly trace?: PmoveTraceFn;
}
/**
 * Mirrors the rerelease pattern in `p_move.cpp` (lines 730-765) that turns the
 * directional CONTENTS_CURRENT_* flags into a unit-ish direction vector.
 */
export declare function currentVectorFromContents(contents: ContentsFlag): Vec3;
/**
 * Computes the velocity contribution from water currents using the same rules
 * as `PM_WaterMove`: the CONTENTS_CURRENT_* bits are turned into a direction
 * vector, scaled by `pm_waterspeed`, and halved when the player only has their
 * feet submerged while standing on solid ground.
 */
export declare function waterCurrentVelocity(params: WaterCurrentParams): Vec3;
/**
 * Computes the conveyor-style velocity that should be applied while touching a
 * ground plane that carries CONTENTS_CURRENT_* bits. The rerelease multiplies
 * the direction vector by 100 units per second, so we expose the same default
 * while allowing callers to override the scalar for tests.
 */
export declare function groundCurrentVelocity(params: GroundCurrentParams): Vec3;
/**
 * Pure mirror of PM_AddCurrents from rerelease `p_move.cpp`: handles ladder
 * specific motion tweaks, water currents, and conveyor-style ground currents
 * before pmove acceleration is applied.
 */
export declare function applyPmoveAddCurrents(params: AddCurrentsParams): Vec3;
//# sourceMappingURL=currents.d.ts.map