sc4/lib/core/matrix-3.js

A command line utility for automating SimCity 4 modding tasks & modifying savegames

// # Matrix3
// Class for representing a 2D transformation matrix.
export default class Matrix3 extends Float32Array {
    constructor() {
        super([
            1, 0, 0,
            0, 1, 0,
            0, 0, 1,
        ]);
    }
    // ## parse(rs)
    // Parses the transformation matrix from a readable stream. We just read 
    // in all 9 float values.
    parse(rs) {
        for (let i = 0; i < this.length; i++) {
            this[i] = rs.float();
        }
        return this;
    }
    // ## write(ws)
    write(ws) {
        for (let i = 0; i < this.length; i++) {
            ws.float(this[i]);
        }
        return ws;
    }
}