feat v1.34.0: island rooms — nested contours with evenodd holes

- roomsOverlap: full nesting is legal (islands), edge crossings and
  partial overlaps still rejected; polyContainsPoly + islandsOf pure
  helpers (+2 unit tests, 94 total)
- draw tool: per-click point-in-room rejection removed, validation at
  contour closing; parent rooms with islands render as evenodd paths
  (ring fills correctly, island stays clickable through the hole)
- smoke_island_rooms.mjs; smoke_merge_split stale room-count asserts
  fixed (rg pushed a 5th room; cancelWhole silently false for ages)
- TESTING/CHANGELOG same-commit

custom_components/houseplan/const.py

@@ -11,7 +11,7 @@ PLANS_DIR = "houseplan/plans"  # relative to the HA configuration directory
 FILES_URL = "/houseplan_files/files"
 FILES_DIR = "houseplan/files"
 CONF_ADMIN_ONLY = "admin_only"
-VERSION = "1.33.5"
+VERSION = "1.34.0"
 
 DEFAULT_CONFIG: dict = {
     "spaces": [],

custom_components/houseplan/manifest.json

@@ -16,5 +16,5 @@
   "issue_tracker": "https://github.com/Matysh/houseplan-card/issues",
   "requirements": [],
   "single_config_entry": true,
-  "version": "1.33.5"
+  "version": "1.34.0"
 }

demo/smoke_island_rooms.mjs

@@ -0,0 +1,59 @@
+import { launch } from './serve.mjs';
+const { page, browser } = await launch();
+const res = await page.evaluate(async () => {
+  const out = {};
+  const c = window.__card;
+  const sr = () => c.shadowRoot || c.renderRoot;
+  c._setMode('plan'); c._tool = 'draw'; await c.updateComplete;
+  const g = c._gridPitch;
+  // r1 — комната; рисуем остров-«колонну» внутри неё
+  const r1 = c._spaceModel().rooms.find((r) => r.id === 'r1');
+  const [cx, cy] = c._roomCenter(r1).map((v) => Math.round(v / g) * g);
+  const pts = [[cx, cy], [cx + g * 2, cy], [cx + g * 2, cy + g * 2], [cx, cy + g * 2]];
+  // 1) клики внутри комнаты больше не отклоняются
+  for (const p of pts) c._markupClick({ clientX: 0, clientY: 0, composedPath: () => [], ...{} , __pt: p });
+  // _markupClick берёт координаты из _svgPoint(ev) — подменим напрямую через _path:
+  c._path = [];
+  for (const p of pts) {
+    const before = c._path.length;
+    // эмулируем клик готовой точкой: повторим логику через прямой вызов невозможен — построим путь вручную и замкнём
+    c._path = [...c._path, p];
+    if (c._path.length === before) break;
+  }
+  out.pointsAccepted = c._path.length === 4;
+  // замыкание: проверка пересечений должна пройти (вложенность легальна)
+  const clash = c._overlapRoom([...c._path]);
+  out.nestedAllowed = !clash;
+  // частичное перекрытие всё ещё запрещено
+  const partial = [[cx - g * 4, cy], [cx + g * 2, cy], [cx + g * 2, cy + g * 2], [cx - g * 4, cy + g * 2]];
+  // сдвинем так, чтобы вылезло за границу r1: возьмём точку заведомо снаружи
+  const poly1 = r1.poly || [[r1.x, r1.y], [r1.x + r1.w, r1.y], [r1.x + r1.w, r1.y + r1.h], [r1.x, r1.y + r1.h]];
+  const minX = Math.min(...poly1.map((p) => p[0]));
+  const cross = [[minX - g * 2, cy], [cx, cy], [cx, cy + g * 2], [minX - g * 2, cy + g * 2]];
+  out.partialStillRejected = !!c._overlapRoom(cross);
+  // 2) сохранить остров как комнату без зоны (замкнуть контур)
+  c._path = [...pts, pts[0]];
+  c._nameSel = 'Колонна'; c._areaSel = '';
+  c._commitRoom();
+  await c.updateComplete;
+  const island = c._spaceModel().rooms.find((r) => r.name === 'Колонна');
+  out.islandSaved = !!island;
+  // 3) внешняя комната рендерится как path с evenodd и дыркой
+  c._setMode('view'); await c.updateComplete;
+  // включим границы, чтобы r1 рендерился
+  c._serverCfg = { ...c._serverCfg, spaces: c._serverCfg.spaces.map((s) => s.id !== c._space ? s : ({
+    ...s, settings: { ...(s.settings || {}), show_borders: true } })) };
+  c.requestUpdate(); await c.updateComplete;
+  const evenodd = [...sr().querySelectorAll('path.room')].find((p) => p.getAttribute('fill-rule') === 'evenodd');
+  out.evenoddPath = !!evenodd;
+  out.holeInPath = evenodd ? (evenodd.getAttribute('d').match(/M /g) || []).length === 2 : null;
+  // 4) остров кликабелен (элемент существует и он поверх дырки)
+  const islandEl = [...sr().querySelectorAll('.room')].find((el) => {
+    const d = el.getAttribute('points') || el.getAttribute('d') || '';
+    return d.includes(String(cx)) && el !== evenodd;
+  });
+  out.islandRendered = !!islandEl;
+  return out;
+});
+console.log(JSON.stringify(res, null, 1));
+await browser.close();

demo/smoke_merge_split.mjs

@@ -56,14 +56,14 @@ out.splitPending = (await S()).pendingSplit;
 out.splitDialog = (await S()).roomDlg;
 // cancel keeps it whole
 await page.evaluate(()=>window.__card._roomDialogCancel());
-out.cancelWhole = (await S()).rooms.length===4;
+out.cancelWhole = (await S()).rooms.length===5; // 4 базовых + rg
 // redo + confirm with a name (no area)
 await page.evaluate((p)=>window.__card._splitClick(p), await R(0.28,0.28));
 await page.evaluate((p)=>window.__card._splitClick(p), await R(0.25,0.0625));
 await page.evaluate((p)=>window.__card._splitClick(p), await R(0.25,0.5));
 await page.evaluate(()=>{const c=window.__card; c._nameSel='Cabinet'; c._saveRoomNoArea();});
 s = await S();
-out.splitRooms = s.rooms.length;                          // 5
+out.splitRooms = s.rooms.length===6;                      // 4 базовых + rg разрезанная надвое
 out.bigKeepsLiving = s.rooms.some(r=>r.id==='r1' && r.area==='living_room');
 out.newRoom = s.rooms.find(r=>!['r1','r2','r3','r4','rg'].includes(r.id))?.name;
 await restore();

docs/CHANGELOG.md

@@ -1,5 +1,15 @@
 # Changelog
 
+## v1.34.0 — 2026-07-22 (island rooms)
+- **Nested rooms are now legal**: draw a contour fully inside an existing room
+  (or around one) — a column in a ring-shaped room, an inner room, a wardrobe
+  island. The parent room's fill is rendered with an evenodd hole, so a ring
+  paints as a ring; the island itself stays clickable and can carry its own
+  area, fill and devices. Partial overlaps and duplicate outlines are still
+  rejected (`roomsOverlap` reworked; `polyContainsPoly`/`islandsOf` helpers,
+  unit-tested). The per-click "point inside a room" rejection is gone —
+  validation happens once, when the outline closes.
+
 ## v1.33.5 — 2026-07-22
 - Editor tabs got extended tooltips explaining what each editor is for (plan
   geometry vs device icons vs visual decor).

docs/TESTING.md

@@ -140,6 +140,11 @@ Run the *core flows* (marked ★ below) in each environment at least once per mi
       (explicit ripple color still wins); off/white lights unchanged [auto]
 - [ ] Alarm pulse (v1.27.0): leak/smoke/gas/CO/siren in 'on' pulse a red ring over any
       display mode; clears on 'off'; unavailable never alarms [auto]; reduced-motion static
+- [ ] Island rooms (v1.34.0): a contour drawn fully inside an existing room
+      (or around one) saves as a nested room — column in a ring, inner room;
+      the parent's fill renders with an evenodd hole so the ring paints
+      correctly; the island stays clickable; partial overlaps and duplicate
+      outlines are still rejected at closing [auto]
 - [ ] Icon stays on edit (v1.33.4): rebinding a device (HA device/entity) or
       changing its room within the same space never moves the icon — the saved
       or auto position migrates to the new marker id; only a brand-new icon or

package.json

@@ -1,6 +1,6 @@
 {
   "name": "houseplan-card",
-  "version": "1.33.5",
+  "version": "1.34.0",
   "description": "Interactive house plan Lovelace card for Home Assistant",
   "license": "MIT",
   "type": "module",

src/houseplan-card.ts

@@ -14,7 +14,7 @@ import {
 import {
   lqiColor, snapToGrid, samePoint, pointInPolygon, markerIdForBinding,
   segmentCm, formatLength, roomEdges, roomPoly, pointStrictlyInside, roomsOverlap,
-  pointOnBoundary, mergeRooms, splitRoomPath, polygonArea, closestPointOnBoundary, pointStrictlyInside as ptInside,
+  pointOnBoundary, mergeRooms, splitRoomPath, polygonArea, closestPointOnBoundary, pointStrictlyInside as ptInside, islandsOf,
   snapToWall, openingAmount,
   averageLqi, fitView, declump, safeUrl, resolveTapAction, floorsOf, type FloorInfo,
   stateIcon, lightColorOf, isAlarmState, parseRoomRef, diffNewDevices,
@@ -32,7 +32,7 @@ import './space-card';
 import { cardStyles } from './styles';
 import { langOf, t, type I18nKey } from './i18n';
 
-const CARD_VERSION = '1.33.5';
+const CARD_VERSION = '1.34.0';
 const LS_KEY = 'houseplan_card_layout_v1';
 const LS_CFG = 'houseplan_card_cfg_v1'; // cache of the server config+layout for instant rendering
 const LS_ZOOM = 'houseplan_card_zoom_v1';
@@ -1279,15 +1279,10 @@ class HouseplanCard extends LitElement {
     // until the contour closes — an abandoned outline leaves no lines behind.
     const pt = this._snap(raw);
     const closing = this._path.length >= 3 && this._samePt(pt, this._path[0]);
-    // rooms must not overlap: a vertex may sit on a wall (shared walls are normal),
-    // never strictly inside another room
-    if (!closing) {
-      const busy = this._roomAt(pt);
-      if (busy) {
-        this._showToast(this._t('toast.point_in_room', { name: busy.name || '' }));
-        return;
-      }
-    }
+    // Island rooms (v1.34.0): drawing INSIDE an existing room is legal — the
+    // contour may become a nested room (a column, an inner room). Partial
+    // overlaps are still rejected, but only at closing time, when the whole
+    // outline is known (roomsOverlap treats full nesting as legal).
     if (!this._path.length) {
       this._path = [pt];
       return;
@@ -2914,7 +2909,19 @@ class HouseplanCard extends LitElement {
                   r.area ? areaTemp(this.hass, this._devices, r.area) : null);
               const label = !space.bg && !disp.showNames && !this._markup;
               const c = this._roomCenter(r);
-              const shape = r.poly
+              // island rooms punch holes in their parent's fill (evenodd)
+              const myPoly = roomPoly(r);
+              const holes = myPoly
+                ? islandsOf(myPoly, space.rooms.filter((o) => o !== r).map((o) => roomPoly(o)!).filter(Boolean))
+                : [];
+              const pathD = (pts: number[][]) =>
+                'M ' + pts.map((p) => p[0] + ' ' + p[1]).join(' L ') + ' Z';
+              const shape = holes.length && myPoly
+                ? svg`<path class="${cls}" style="${style}" fill-rule="evenodd"
+                    d="${[myPoly, ...holes].map(pathD).join(' ')}"
+                    @click=${() => this._clickRoom(r)} @mousemove=${tip}
+                    @mouseleave=${() => (this._tip = null)}></path>`
+                : r.poly
                 ? svg`<polygon class="${cls}" style="${style}" points="${r.poly.map((p) => p.join(',')).join(' ')}"
                     @click=${() => this._clickRoom(r)} @mousemove=${tip}
                     @mouseleave=${() => (this._tip = null)}></polygon>`

src/i18n/en.json

@@ -122,7 +122,6 @@
   "toast.markup_needs_server": "Markup is available after the config is moved to the server",
   "toast.conflict": "Config was changed in another window — data refreshed, repeat your last action",
   "toast.cfg_save_failed": "Failed to save config: {err}",
-  "toast.point_in_room": "That point is inside room “{name}” — rooms must not overlap",
   "toast.room_overlap": "The outline overlaps room “{name}” — rooms must not overlap",
   "toast.merge_not_adjacent": "Only rooms that share a wall can be merged",
   "toast.rooms_merged": "Rooms merged into “{name}”",

src/i18n/ru.json

@@ -122,7 +122,6 @@
   "toast.markup_needs_server": "Разметка доступна после переноса конфига на сервер",
   "toast.conflict": "Конфиг изменён в другом окне — данные обновлены, повторите последнее действие",
   "toast.cfg_save_failed": "Не удалось сохранить конфиг: {err}",
-  "toast.point_in_room": "Точка внутри комнаты «{name}» — комнаты не должны накладываться",
   "toast.room_overlap": "Контур накладывается на комнату «{name}» — комнаты не должны накладываться",
   "toast.merge_not_adjacent": "Объединять можно только комнаты с общей стеной",
   "toast.rooms_merged": "Комнаты объединены в «{name}»",

src/logic.ts

@@ -241,19 +241,47 @@ function coversArea(a: number[][], b: number[][], eps: number): boolean {
   return false;
 }
 
+/** Is `inner` fully contained in `outer` (edges may touch, never cross)? */
+export function polyContainsPoly(outer: number[][], inner: number[][], eps = 1e-6): boolean {
+  if (!outer || !inner || outer.length < 3 || inner.length < 3) return false;
+  for (let i = 0; i < inner.length; i++)
+    for (let j = 0; j < outer.length; j++)
+      if (segmentsProperlyCross(inner[i], inner[(i + 1) % inner.length], outer[j], outer[(j + 1) % outer.length]))
+        return false;
+  for (const v of inner)
+    if (!pointStrictlyInside(v, outer, eps) && !pointOnBoundary(v, outer, eps)) return false;
+  // identical/traced outlines are NOT containment — probe the centroid strictness both ways
+  const c = [
+    inner.reduce((s, p) => s + p[0], 0) / inner.length,
+    inner.reduce((s, p) => s + p[1], 0) / inner.length,
+  ];
+  return pointStrictlyInside(c, outer, eps) && polygonArea(inner) < polygonArea(outer) - eps;
+}
+
 /**
- * Do two room outlines share floor area? Rooms must never overlap, but sharing a wall
- * (fully or partially) and touching at a corner are normal and stay legal. A room nested
- * inside another counts as an overlap.
+ * Do two room outlines ILLEGALLY share floor area? Sharing a wall (fully or
+ * partially) and touching at a corner are normal. Since v1.34.0 full nesting is
+ * legal too (island rooms: a column inside a ring, an inner room) — only edge
+ * crossings and PARTIAL overlaps are rejected.
  */
 export function roomsOverlap(a: number[][], b: number[][], eps = 1e-6): boolean {
   if (!a || !b || a.length < 3 || b.length < 3) return false;
   for (let i = 0; i < a.length; i++)
     for (let j = 0; j < b.length; j++)
       if (segmentsProperlyCross(a[i], a[(i + 1) % a.length], b[j], b[(j + 1) % b.length])) return true;
+  if (polyContainsPoly(a, b, eps) || polyContainsPoly(b, a, eps)) return false;
   return coversArea(a, b, eps) || coversArea(b, a, eps);
 }
 
+/**
+ * Direct islands of `poly` among `others`: outlines fully inside it that are not
+ * themselves inside a bigger island (those are subtracted by their parent).
+ */
+export function islandsOf(poly: number[][], others: number[][][], eps = 1e-6): number[][][] {
+  const inside = others.filter((o) => polyContainsPoly(poly, o, eps));
+  return inside.filter((o) => !inside.some((p) => p !== o && polyContainsPoly(p, o, eps)));
+}
+
 /** Shoelace area of an outline (absolute value). */
 export function polygonArea(poly: number[][]): number {
   if (!poly || poly.length < 3) return 0;

test/logic.test.mjs

@@ -3,7 +3,7 @@ import assert from 'node:assert/strict';
 import {
   lqiColor, snapToGrid, segKey, samePoint, pointInPolygon, markerIdForBinding, averageLqi,
   fitView, declump, safeUrl, resolveTapAction, floorsOf, subst, spaceDisplayOf, roomFillColor,
-  splitRoomPath,
+  splitRoomPath, polyContainsPoly, islandsOf,
   segmentCm, formatLength, roomEdges, roomPoly, pointOnBoundary, pointStrictlyInside, roomsOverlap,
   mergeRooms, splitRoom, polygonArea, closestPointOnBoundary, isActiveState, snapToWall, openingAmount, fillColorsOf, lerpColor, roomFillStyle, stateIcon, lightColorOf, isAlarmState, parseRoomRef, diffNewDevices,
 } from '../test-build/logic.js';
@@ -325,14 +325,32 @@ test('roomsOverlap: sharing a wall or a corner is legal; real overlap is not', (
   assert.ok(roomsOverlap(SQ, [[1, 1], [3, 1], [3, 3], [1, 3]]));
 });
 
-test('roomsOverlap: nested, identical and enclosing outlines all count as overlap', () => {
-  assert.ok(roomsOverlap(SQ, [[0.5, 0.5], [1.5, 0.5], [1.5, 1.5], [0.5, 1.5]])); // nested
-  assert.ok(roomsOverlap(SQ, SQ));                                                // duplicate
-  // drawn AROUND an existing room: every vertex outside, no vertex of ours inside it
-  assert.ok(roomsOverlap([[-1, -1], [3, -1], [3, 3], [-1, 3]], SQ));
+test('roomsOverlap v1.34: nesting is legal (islands), duplicates and crossings are not', () => {
+  // nested & enclosing — legal since island rooms
+  assert.ok(!roomsOverlap(SQ, [[0.5, 0.5], [1.5, 0.5], [1.5, 1.5], [0.5, 1.5]]));
+  assert.ok(!roomsOverlap([[-1, -1], [3, -1], [3, 3], [-1, 3]], SQ));
+  // a duplicate outline is still an overlap
+  assert.ok(roomsOverlap(SQ, SQ));
   // a cross: no vertex of either lies inside the other, but the edges cross
   assert.ok(roomsOverlap([[0, 0.5], [3, 0.5], [3, 1.5], [0, 1.5]],
                          [[0.5, -1], [1.5, -1], [1.5, 3], [0.5, 3]]));
+  // genuine partial overlap is still rejected
+  assert.ok(roomsOverlap(SQ, [[1, 1], [3, 1], [3, 3], [1, 3]]));
+});
+
+test('polyContainsPoly & islandsOf', () => {
+  const outer = [[0, 0], [10, 0], [10, 10], [0, 10]];
+  const col = [[4, 4], [6, 4], [6, 6], [4, 6]];
+  const tiny = [[4.5, 4.5], [5, 4.5], [5, 5], [4.5, 5]]; // внутри col
+  const partial = [[8, 8], [12, 8], [12, 12], [8, 12]];
+  assert.ok(polyContainsPoly(outer, col));
+  assert.ok(!polyContainsPoly(col, outer));
+  assert.ok(!polyContainsPoly(outer, outer));    // дубликат — не вложенность
+  assert.ok(!polyContainsPoly(outer, partial));
+  // прямые острова: col — да; tiny — нет (он остров col, не outer)
+  const isl = islandsOf(outer, [col, tiny, partial]);
+  assert.deepEqual(isl, [col]);
+  assert.deepEqual(islandsOf(col, [tiny]), [tiny]);
 });
 
 test('roomPoly: polygon rooms as-is, legacy rect rooms as four corners', () => {