Function createColumn

src/utils/matrixUtils.ts:19–32

(rows: number, trailMultiplier: number)

 * @param trailMultiplier Multiplier for trail length based on fade setting
 */
export function createColumn(rows: number, trailMultiplier: number): MatrixColumn {
    const cells: MatrixCell[] = [];
    for (let r = 0; r < rows; r++) {
        cells.push({ val: ' ', isHead: false });
    }

    return {
        cells,
        head: 0,
        spaceRemaining: Math.floor(Math.random() * rows) + 1,
        lengthRemaining: Math.floor((Math.random() * (rows - 3) + 3) * trailMultiplier),
        updateSpeed: Math.floor(Math.random() * 3) + 1
    };
}

/**
 * Updates a MatrixColumn by shifting (moving head) and inserting new characters.