public class Square {

    private int x;

    private int y;

    private int width;

    public boolean isInSquare(int x, int y) {
        int left = this.x;
        int right = this.x + width;
        int top = this.y;
        int bottom = this.y + width;

        return x >= left && x <= right &&
                y >= top && y <= bottom;
    }

    public boolean tryExpand(int x, int y, int maxSize) {
        int newWidth = Math.abs(x - this.x);
        int newHeight = Math.abs(y - this.y);
        int newSize = Math.max(newWidth, newHeight);
        if (newSize > maxSize) {
            return false;
        }
        this.width = newSize;
        return true;
    }

}