@woosh/meep-engine/src/generation/theme/TerrainLayerDescription.js

Pure JavaScript game engine. Fully featured and production ready.

import { computeStringHash } from "../../core/primitives/strings/computeStringHash.js";
import Vector2 from "../../core/geom/Vector2.js";

export class TerrainLayerDescription {
    /**
     * URL to diffuse texture
     * @type {string}
     */
    diffuse = '';

    /**
     *
     * @type {Vector2}
     */
    size = new Vector2(1, 1);

    hash() {
        return computeStringHash(this.diffuse) ^ this.size.hash();
    }

    /**
     *
     * @param {TerrainLayerDescription} other
     * @returns {boolean}
     */
    equals(other) {
        if (this === other) {
            return true;
        }

        return this.diffuse === other.diffuse
            && this.size.equals(other.size);
    }

    toJSON() {
        return {
            diffuse: this.diffuse,
            size: this.size.toJSON()
        };
    }

    toString() {
        return JSON.stringify(this.toJSON());
    }

    static from({
                    diffuse,
                    size
                }) {
        const r = new TerrainLayerDescription();

        r.diffuse = diffuse;

        if (size !== undefined) {
            r.size.copy(size);
        }

        return r;
    }
}

/**
 *
 * @type {boolean}
 */
TerrainLayerDescription.prototype.isTerrainLayerDescription = true;