/* tslint:disable */
/* eslint-disable */

/**
 * Add dye in a disc around (x, y) (grid coordinates, 0..N).
 */
export function fluid_add_density(x: number, y: number, amount: number, radius: number): void;

/**
 * Add velocity (vx, vy) in a disc around (x, y).
 */
export function fluid_add_velocity(x: number, y: number, vx: number, vy: number, radius: number): void;

/**
 * Create an empty N×N fluid.
 */
export function fluid_init(n: number): void;

/**
 * N×N RGBA image of the density field.
 */
export function fluid_render(): Uint8Array;

export function fluid_size(): number;

/**
 * Advance one step: velocity (diffuse → project → advect → project), then density.
 * `fade` multiplies the density afterwards (1.0 = no dissipation).
 */
export function fluid_step(dt: number, viscosity: number, diffusion: number, fade: number): void;

/**
 * Sum of density over interior cells.
 */
export function fluid_total_density(): number;

export type InitInput = RequestInfo | URL | Response | BufferSource | WebAssembly.Module;

export interface InitOutput {
    readonly memory: WebAssembly.Memory;
    readonly fluid_add_density: (a: number, b: number, c: number, d: number) => void;
    readonly fluid_add_velocity: (a: number, b: number, c: number, d: number, e: number) => void;
    readonly fluid_init: (a: number) => void;
    readonly fluid_render: () => [number, number];
    readonly fluid_size: () => number;
    readonly fluid_step: (a: number, b: number, c: number, d: number) => void;
    readonly fluid_total_density: () => number;
    readonly __wbindgen_externrefs: WebAssembly.Table;
    readonly __wbindgen_free: (a: number, b: number, c: number) => void;
    readonly __wbindgen_start: () => void;
}

export type SyncInitInput = BufferSource | WebAssembly.Module;

/**
 * Instantiates the given `module`, which can either be bytes or
 * a precompiled `WebAssembly.Module`.
 *
 * @param {{ module: SyncInitInput }} module - Passing `SyncInitInput` directly is deprecated.
 *
 * @returns {InitOutput}
 */
export function initSync(module: { module: SyncInitInput } | SyncInitInput): InitOutput;

/**
 * If `module_or_path` is {RequestInfo} or {URL}, makes a request and
 * for everything else, calls `WebAssembly.instantiate` directly.
 *
 * @param {{ module_or_path: InitInput | Promise<InitInput> }} module_or_path - Passing `InitInput` directly is deprecated.
 *
 * @returns {Promise<InitOutput>}
 */
export default function __wbg_init (module_or_path?: { module_or_path: InitInput | Promise<InitInput> } | InitInput | Promise<InitInput>): Promise<InitOutput>;