import { type SurfaceFlag } from '@quake2ts/shared';
import { IndexBuffer, Texture2D, VertexArray, VertexBuffer, type VertexAttributeLayout } from './resources.js';
import { BspMap } from '../assets/bsp.js';
export interface BspLightmapData {
    readonly width: number;
    readonly height: number;
    readonly samples: Uint8Array;
}
export interface BspSurfaceInput {
    readonly vertices: ReadonlyArray<number> | Float32Array;
    readonly textureCoords: ReadonlyArray<number> | Float32Array;
    readonly lightmapCoords?: ReadonlyArray<number> | Float32Array;
    readonly indices?: ReadonlyArray<number> | Uint16Array | Uint32Array;
    readonly texture: string;
    readonly surfaceFlags?: SurfaceFlag;
    readonly lightmap?: BspLightmapData;
    readonly faceIndex: number;
    readonly mins?: {
        readonly x: number;
        readonly y: number;
        readonly z: number;
    };
    readonly maxs?: {
        readonly x: number;
        readonly y: number;
        readonly z: number;
    };
}
export interface LightmapPlacement {
    readonly atlasIndex: number;
    readonly offset: [number, number];
    readonly scale: [number, number];
}
export interface BspSurfaceGeometry {
    readonly vao: VertexArray;
    readonly vertexBuffer: VertexBuffer;
    readonly indexBuffer: IndexBuffer;
    readonly indexCount: number;
    readonly vertexCount: number;
    readonly texture: string;
    readonly surfaceFlags: SurfaceFlag;
    readonly lightmap?: LightmapPlacement;
    readonly vertexData: Float32Array;
    readonly indexData: Uint16Array;
    readonly mins?: {
        readonly x: number;
        readonly y: number;
        readonly z: number;
    };
    readonly maxs?: {
        readonly x: number;
        readonly y: number;
        readonly z: number;
    };
}
export interface LightmapAtlas {
    readonly texture: Texture2D;
    readonly width: number;
    readonly height: number;
    readonly pixels: Uint8Array;
}
export interface BspBuildOptions {
    readonly atlasSize?: number;
    readonly lightmapPadding?: number;
    readonly hiddenClassnames?: Set<string>;
}
export interface BspGeometryBuildResult {
    readonly surfaces: readonly BspSurfaceGeometry[];
    readonly lightmaps: readonly LightmapAtlas[];
}
export declare const BSP_VERTEX_LAYOUT: readonly VertexAttributeLayout[];
/**
 * Converts a parsed BSP map into a set of flat surface inputs ready for rendering.
 *
 * This function handles:
 * 1. Traversing faces and their edges to build vertex lists.
 * 2. Calculating texture coordinates (UVs) from surface normals and texture info.
 * 3. Generating triangle indices (fan triangulation) for convex polygon faces.
 * 4. Extracting and calculating lightmap data and coordinates.
 *
 * @param map The parsed BSP map structure.
 * @returns An array of surface inputs suitable for consumption by `buildBspGeometry`.
 */
export declare function createBspSurfaces(map: BspMap): BspSurfaceInput[];
export declare function buildBspGeometry(gl: WebGL2RenderingContext, surfaces: readonly BspSurfaceInput[], map?: BspMap, options?: BspBuildOptions): BspGeometryBuildResult;
//# sourceMappingURL=bsp.d.ts.map