Put this code in minimap.el . Use iminimap to create file. * todo * make this auto update the minimap buffer once you change your current buffer in the window.

minimap.el

;; -- start playing around -- ;;
(defun minimap-reset ()
  (interactive)
  (minimap-delete-window-and-buffer)
  (setq minimap-start nil)
  (setq minimap-end nil)
  (setq minimap-active-overlay nil)
  (setq minimap-bufname nil)
  (setq minimap-timer-object nil)
  (setq minimap-active-minimaps 0)
  (setq minimap-base-overlay nil)
  (setq minimap-numlines nil)
  (setq minimap-pointmin-overlay nil))

;; (defun minimap-delete-window-and-buffer ()
;;   (interactive)
;;   (dolist (win (window-list))
;;     (let ((buf (buffer-name (window-buffer win))))
;;       (when (string/starts-with buf minimap-buffer-name-prefix)
;;         (kill-buffer buf)
;;         (when (window-live-p win)
;;           (delete-window win)))))

(defun minimap-delete-window-and-buffer ()
  (interactive)
  (dolist (buffer (buffer-list))
    (let ((buf (buffer-name buffer)))
      (when (string/starts-with buf minimap-buffer-name-prefix)
        ;; *First* delete the corresponding window
        ;; *Then* buffer
        (let ((win (get-buffer-window buf)))
          (when (and win (window-live-p win))
            (delete-window win)))
        (kill-buffer buf)))))

(defun string/starts-with (s arg)
  (when (>= (length s) (length arg))
         (string-equal (substring s 0 (length arg)) arg)))

(defun iminimap ()
  (interactive)
  (minimap-delete-window-and-buffer)
  (minimap-create))