Harmonic Hallways
=================

+-- Level +3 ---------------------------------------------------------+
|                                                                     |
|                                    %                                |
|                                    v                                |
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+---------------------------------------------------------------------+

+-- Level +2 ---------------------------------------------------------+
|                                                                     |
|            %                                                        |
|            |v                                                       |
|            |                                                        |
|            *                                                        |
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|            |                                                        |
|            *                                                        |
|             \                                                       |
|              \                                                      |
|               *                                                     |
|              /                                                      |
|             /                                                       |
|            *                                                        |
|           /                                                         |
|          /                                                          |
|         *                                                           |
|          \                                                          |
|           \                                                         |
|            *                                                        |
|            |                                                        |
|            |                                                        |
|            *                                                        |
|            |                                                        |
|            |                                                        |
|            *           *                                            |
|           / \         / \                                           |
|          /   \       /   \                                          |
|  <*--*--*     *--*--*     *     *--*--*                             |
|          \   /             \   /                                    |
|           \ /               \ /                                     |
|            *                 *                                      |
|            |                                                        |
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|            *                                                        |
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|            |                                                        |
|            *                                                        |
|             \                                                       |
|              \                                                      |
|               *                                                     |
|              /                                                      |
|             /                                                       |
|            *                                                        |
|           /                                                         |
|          /                                                          |
|         *                                                           |
|          \                                                          |
|           \                                                         |
|            *                                                        |
|            |                                                        |
|            |                                                        |
|            *                                                        |
|            |                                                        |
|            |                                                        |
|            %                                                        |
|            v                                                        |
|                                                                     |
+---------------------------------------------------------------------+

+-- Level +1 ---------------------------------------------------------+
|            ^                                                        |
|            %--*                                                     |
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|                                                                     |
|                                                                     |
|                                       ^                             |
|                                       %--*                          |
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|                                                                     |
|                                                                     |
|            ^                                                        |
|            %--*--P                                                  |
|                  v                                                  |
|                                                                     |
+---------------------------------------------------------------------+

+-- Ground level -----------------------------------------------------+
|                                                                     |
|                                                   *                 |
|                                                  /                  |
|                                                 /                   |
|                        *  *  *  *  *  *  *     *                    |
|                       / \/ \/ \/ \/ \/ \/ \   /                     |
|                  ^   /  /\ /\ /\ /\ /\ /\  \ /                      |
|                  %--*--*  *  *  *  *  *  *  *                       |
|                      \                    \                         |
|                       \ >                  \                        |
|                        *--*                 *                       |
|                                              \                      |
|                                               \                     |
|                                                *                    |
|                                                                     |
|                                                                     |
|                                                                     |
|                                                                     |
|                                                                     |
|                           *     *     *     *     *                 |
|                          < \   / \   / \   / \   < \                |
|                             \ /   \ /   \ /   \     \               |
|                              *     *     *     *     *              |
|                                                 \   /               |
|                                                  \ /                |
|                                                   *                 |
|                                                                     |
|                                                                     |
|                                       %     *                       |
|                                       v\   / \                      |
|                                         \ /   \ >                   |
|                                          *     *                    |
|                                                                     |
+---------------------------------------------------------------------+

+-- Level -1 ---------------------------------------------------------+
|                                       ^                             |
|                                       %--*--P                       |
|                                             v                       |
|                                                                     |
+---------------------------------------------------------------------+

+-- Level -2 ---------------------------------------------------------+
|                                                                     |
|                                    *                                |
|                                     >                               |
|                                                                     |
|                                                                     |
|                                                                     |
|                                                                     |
|                                    *                                |
|                                   / >                               |
|                                  /   <                              |
|                                 *     *                             |
|                                  \   /                              |
|                                   \ /                               |
|                                    *        *                       |
|                                            / >                      |
|                                           /   <                     |
|                                          *     *           *        |
|                                           \   /           / >       |
|                                            \ /           /   <      |
|                           *                 *           *     *     |
|                          / \                             \   /      |
|                         /   \                             \ /       |
|                        *     *                    *        *        |
|                             <                    / >                |
|                                             ^   /   <               |
|                                    *        %--*--*--*              |
|                                   / \           \                   |
|                                  /   \           \ >            <   |
|                                 *     *           *        %     *  |
|                                  \   <                     v\   /   |
|                                   \ >                        \ /    |
|                                    *        *                 *     |
|                                            / \                      |
|                                           /   \                     |
|                                          *     *                    |
|                                           \   <                     |
|                                            \ >                      |
|                                             *                       |
|                                                                     |
+---------------------------------------------------------------------+

+-- Level -3 ---------------------------------------------------------+
|                                                            ^        |
|                                                            P        |
|                                                                     |
+---------------------------------------------------------------------+