/**
 * PixelGrid: a picture written as text, one glyph per pixel, compiled into the
 * ordinary `draw` ops Aseprite already executes.
 *
 * It is the writable half of `look op="ascii"`. A model is far better at
 * laying out a silhouette it can see as rows of characters than at composing
 * it from ellipse/rect/line calls whose result it cannot see until afterwards,
 * so the grid is the authoring format and this file does the rasterising —
 * deterministically, in code, where an off-by-one is a test failure instead of
 * a misplaced limb.
 *
 * Expansion happens here, server-side, like `text`: the Lua extension never
 * learns a new op, and the same compiler serves the live window and headless.
 */
export declare const TRANSPARENT_GLYPH = ".";
/** The sprite's canvas. A grid may be as large as it and no larger. */
export interface CanvasSize {
    width: number;
    height: number;
}
export interface GridOp {
    x: number;
    y: number;
    /** glyph → colour; null is transparent. "." is transparent unless redefined. */
    legend: Record<string, string | null>;
    rows: string[];
    /** What transparent cells do: "erase" clears them, "skip" leaves the pixel underneath. */
    transparent: "erase" | "skip";
}
export interface CompiledGrid {
    /** Wire ops for draw.batch: `clear` rectangles first, then one `pixels` op per colour. */
    ops: Record<string, unknown>[];
    width: number;
    height: number;
    painted: number;
    erased: number;
}
export declare function compileGrid(op: GridOp, canvas: CanvasSize): CompiledGrid;