arx-convert/dist/common/Color.js

Converts various Arx Fatalis formats to JSON or YAML and back

import { BinaryIO } from './BinaryIO.js';
export class Color {
    static readFrom(binary, mode) {
        switch (mode) {
            case 'abgr': {
                const [a, b, g, r] = binary.readUint8Array(4);
                return { r, g, b, a: a / 255 };
            }
            case 'bgra': {
                const [b, g, r, a] = binary.readUint8Array(4);
                return { r, g, b, a: a / 255 };
            }
            case 'rgb': {
                const [r, g, b] = binary.readFloat32Array(3);
                return { r: Math.floor(r * 255), g: Math.floor(g * 255), b: Math.floor(b * 255), a: 1 };
            }
        }
    }
    static accumulateFrom({ r, g, b, a }, mode) {
        const buffer = new ArrayBuffer(Color.sizeOf(mode));
        const binary = new BinaryIO(buffer);
        switch (mode) {
            case 'abgr': {
                binary.writeUint8Array([a * 255, b, g, r]);
                break;
            }
            case 'bgra': {
                binary.writeUint8Array([b, g, r, a * 255]);
                break;
            }
            case 'rgb': {
                binary.writeFloat32Array([r / 255, g / 255, b / 255]);
                break;
            }
        }
        return buffer;
    }
    static sizeOf(mode) {
        switch (mode) {
            case 'abgr':
            case 'bgra': {
                return BinaryIO.sizeOfUint8Array(4);
            }
            case 'rgb': {
                return BinaryIO.sizeOfFloat32Array(3);
            }
        }
    }
    static get black() {
        return {
            r: 0,
            g: 0,
            b: 0,
            a: 1,
        };
    }
    static get transparent() {
        return {
            r: 0,
            g: 0,
            b: 0,
            a: 0,
        };
    }
}
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