# Sample Dungeon — concrete example board

Generated by the reikhelm dungeon recipe
(`reikhelm-core/src/recipes/dungeon.rs`) and dumped by the throwaway example
`reikhelm-core/examples/sample_dungeon.rs`.

Reproduce exactly:

```sh
cargo run --example sample_dungeon -p reikhelm-core 42 48 32
```

- **Seed:** `42`
- **Canvas:** 48 x 32 cells
- **Config:** `DungeonConfig::default()` (just resized) — BSP `min_leaf 8`,
  `max_depth 5`; rooms `5..=11`, margin 1; `extra_edge_ratio 0.30` (loop edges,
  not a strict tree); `door_chance 0.5`.
- **Result:** 12 rooms, 14 corridors, deterministic for this seed.

## ASCII map

Legend: `#` wall   `.` floor   `+` door   `o` pillar   `~` water   `!` lava

```
################################################
#################.....####################...###
#################.....###################.....##
#...........#####.....###########.######.......#
#...........#####.....###########.+....+.......#
#.............................+.....####.......#
#...........#####.....###########.#######.....##
#...........#####.....###########.#######....###
####.##############.#############+#######.######
####.##############.#############.#######.######
####.#########...##.#############.#######+######
####.########.....#.#############.####.......###
####.########.....#.#############.####.......###
####.########.....#.##########....####.......###
##...########.....#.##########...+...........###
###...+...........+.#######.........##....o..###
###.#.#######.....#########.........##.......###
#####.#######.....############...#####.......###
#####.#######.....############...########+######
#####.#######.....#######################.######
#####.########...########################.######
#####.#########+#########################.######
#####.#########.#########################.######
###.....#######.#########################.######
##.......######.########......###########.######
#.........#####+#######........##########+######
#.........+.+.....####..........####...........#
#.........###...................####...........#
##.......####.....####..........####...........#
###.....#####.....#####........#####...........#
#############.....######......######...........#
################################################
```

## Regions

Themes drive DEEPFALL room flavor. Only rooms carry a theme; corridors are
plain passages. `cells` is the room's floor area (a rough "size").

| Region | Kind | Theme | Cells (size) | Top-left (x,y) | W x H |
|-------:|------|-----------|-------------:|----------------|-------|
| 0 | Room | Stone | 55 | (1,3) | 11x5 |
| 1 | Room | Threshold | 35 | (17,1) | 5x7 |
| 2 | Room | Den | 9 | (31,3) | 5x5 |
| 3 | Room | Vault | 37 | (40,1) | 7x7 |
| 4 | Room | Den | 8 | (2,13) | 4x4 |
| 5 | Room | Library | 51 | (1,23) | 9x7 |
| 6 | Room | Crypt | 51 | (13,10) | 5x11 |
| 7 | Room | Den | 30 | (27,13) | 9x6 |
| 8 | Room | Hall | 49 | (38,11) | 7x7 |
| 9 | Room | Crypt | 25 | (13,26) | 5x5 |
| 10 | Room | Den | 58 | (22,24) | 10x7 |
| 11 | Room | Throne | 55 | (36,26) | 11x5 |

Plus 14 corridor regions (ids 12–25) linking the rooms.

### Entities (overlay layer)

- **Entrance** @ (19,4) — sits in the `Threshold` room (region 1).
- **Exit** @ (41,28) — sits in the `Throne` room (region 11), the far end.
- **Treasure** x6 and **Monster** x14 scattered, biased by each room's theme
  (e.g. `Vault`/`Library` loot-rich, `Den` monster-dense, `Throne` high-risk
  high-reward, `Threshold` kept safe).

## Mapping to DEEPFALL

Each reikhelm **room** becomes a DEEPFALL room tile carrying its **theme**
(Vault, Library, Crypt, Den, Hall, Throne, Threshold...), which sets that tile's
loot/danger profile via the recipe's `(treasure_bias, monster_bias)`; corridors
are the connective passages between them. Depth = distance from the `Threshold`
entrance toward the `Throne` exit, so **deeper rooms are higher value** (and
higher risk) — the `Throne` boss seat at the far corner is the natural payoff
tile.