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