feat v1.37.0: open boundaries (virtual walls)

- room.open_to symmetric links; 'Open boundary' plan tool toggles the
  shared wall pair under the click (sharedBoundary collinear-overlap
  math + distToSegment pull, same as Split); dashed rendering with an
  amber hot state while the tool is active; Esc -> Draw
- glow: the clip becomes the transitive open zone (openZoneOf BFS,
  either-direction links) + door sectors from the zone's outer walls
- model rooms carry open_to; backend ROOM_SCHEMA open_to: [str]
- +3 unit tests (104), smoke_openwall.mjs (8 checks); docs 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 = "1.36.4"
+VERSION = "1.37.0"
 
 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": "1.36.4"
+  "version": "1.37.0"
 }

custom_components/houseplan/validation.py

@@ -68,6 +68,7 @@ ROOM_SCHEMA = vol.All(
             vol.Required("id"): str,
             vol.Required("name"): str,
             vol.Optional("area"): vol.Any(str, None),
+            vol.Optional("open_to"): [str],
             vol.Optional("x"): vol.Coerce(float),
             vol.Optional("y"): vol.Coerce(float),
             vol.Optional("w"): vol.Coerce(float),

demo/smoke_openwall.mjs

@@ -0,0 +1,51 @@
+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 = 'openwall'; await c.updateComplete;
+  // r1|r2 делят стену x=0.55 → клик по ней открывает границу
+  const H = 1000 / (c._curSpaceCfg.aspect || 1);
+  c._openWallClick([550, 0.25 * H]);
+  await c.updateComplete;
+  const r1 = c._curSpaceCfg.rooms.find((r) => r.id === 'r1');
+  const r2 = c._curSpaceCfg.rooms.find((r) => r.id === 'r2');
+  out.linked = (r1.open_to || []).includes('r2') && (r2.open_to || []).includes('r1');
+  // пунктир отрисован
+  out.dashes = sr().querySelectorAll('.openwall').length > 0;
+  out.hotClass = !!sr().querySelector('.openwalls.hot');
+  // повторный клик закрывает
+  c._openWallClick([550, 0.25 * H]); await c.updateComplete;
+  out.toggledOff = !(c._curSpaceCfg.rooms.find((r) => r.id === 'r1').open_to || []).includes('r2');
+  out.dashesGone = sr().querySelectorAll('.openwall').length === 0;
+  // клик мимо стен — тост, без изменений
+  c._openWallClick([100, 100]);
+  out.missToast = !!c._toast;
+  // снова открыть для glow-теста
+  c._openWallClick([550, 0.25 * H]); await c.updateComplete;
+  // glow: свет из r1 заливает и r2 (clip содержит оба полигона)
+  c._setMode('view'); await c.updateComplete;
+  c._serverCfg = { ...c._serverCfg, spaces: c._serverCfg.spaces.map((s) => s.id !== c._space ? s : ({
+    ...s, settings: { ...(s.settings || {}), fill_mode: 'glow' } })) };
+  const litLight = c._devices.find((d) => d.space === c._space && d.entities.some((e) => e.startsWith('light.') && c.hass.states[e]?.state === 'on'));
+  const c1 = c._roomCenter(c._spaceModel().rooms.find((r) => r.id === 'r1'));
+  const aspect = c._curSpaceCfg.aspect || 1;
+  c._layout = { ...c._layout, [litLight.id]: { s: c._space, x: c1[0] / 1000, y: c1[1] / (1000 / aspect) } };
+  c.requestUpdate(); await c.updateComplete;
+  const clip = sr().querySelector('defs clipPath[id^="hp-glowclip"]');
+  out.zoneClip = clip ? clip.querySelectorAll('path').length >= 2 : false;
+  // транзитивность: r2↔r3 тоже открыть → clip получит 3 полигона
+  const rr2 = c._curSpaceCfg.rooms.find((r) => r.id === 'r2');
+  const rr3 = c._curSpaceCfg.rooms.find((r) => r.id === 'r3');
+  if (rr3) {
+    rr2.open_to = [...(rr2.open_to || []), 'r3'];
+    rr3.open_to = [...(rr3.open_to || []), 'r2'];
+    c._regSignature = ''; c.requestUpdate(); await c.updateComplete;
+    const clip2 = sr().querySelector('defs clipPath[id^="hp-glowclip"]');
+    out.transitive = clip2 ? clip2.querySelectorAll('path').length >= 3 : false;
+  } else out.transitive = 'no r3';
+  return out;
+});
+console.log(JSON.stringify(res, null, 1));
+await browser.close();

docs/CHANGELOG.md

@@ -1,5 +1,16 @@
 # Changelog
 
+## v1.37.0 — 2026-07-23 (open boundaries — virtual walls)
+- Rooms divided only by zoning can now share an **open boundary**: the new
+  "Open boundary" tool in the Plan editor toggles it with a click on the wall
+  two rooms share. The stretch renders dashed; while the tool is active open
+  boundaries highlight amber. Stored as `room.open_to` links by room id, so
+  redrawing/merging neighbours doesn't break them.
+- In the light-sources fill, light flows through open boundaries freely —
+  transitively across the whole connected zone (kitchen ↔ living ↔ hall as
+  one open space), still limited by the glow radius. Door sectors now work
+  from any outer wall of the zone.
+
 ## v1.36.4 — 2026-07-23
 - Glow: sharper light edge — the pool is fully lit for the inner 80% of the
   radius, the gradient falloff lives only in the outer 20%.

docs/TESTING.md

@@ -140,6 +140,12 @@ 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
+- [ ] Open boundaries (v1.37.0): the Plan editor's "Open boundary" tool
+      toggles a virtual wall between two rooms by clicking their shared wall
+      (pull like Split; miss → toast); open stretches render dashed (amber
+      highlight while the tool is active); glow light floods the whole
+      connected open zone transitively, door sectors work from the zone's
+      outer walls; merge/split keep links by room id [auto]
 - [ ] Sector wedge fix (v1.36.3): door sectors never darken the light INSIDE
       the room — room outline and sectors are separate clipPath children
       (union), not subpaths of one nonzero path [auto]

package.json

@@ -1,6 +1,6 @@
 {
   "name": "houseplan-card",
-  "version": "1.36.4",
+  "version": "1.37.0",
   "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, islandsOf,
+  pointOnBoundary, mergeRooms, splitRoomPath, polygonArea, closestPointOnBoundary, pointStrictlyInside as ptInside, islandsOf, sharedBoundary, openZoneOf, distToSegment,
   snapToWall, openingAmount,
   averageLqi, fitView, declump, safeUrl, resolveTapAction, floorsOf, type FloorInfo,
   stateIcon, lightColorOf, isAlarmState, parseRoomRef, diffNewDevices, glowColorOf, doorSector, hasRoomBehind, controlsAction, isControllable,
@@ -32,14 +32,14 @@ import './space-card';
 import { cardStyles } from './styles';
 import { langOf, t, type I18nKey } from './i18n';
 
-const CARD_VERSION = '1.36.4';
+const CARD_VERSION = '1.37.0';
 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';
 const NORM_W = 1000; // width of the render space for normalized configs
 
 const GRID_N = 240; // grid points across the plan width (half the previous step; old nodes are a subset of the new ones, positions are preserved)
-type MarkupTool = 'draw' | 'merge' | 'split' | 'opening' | 'delroom';
+type MarkupTool = 'draw' | 'merge' | 'split' | 'opening' | 'openwall' | 'delroom';
 
 const fireEvent = (node: EventTarget, type: string, detail?: unknown) => {
   const ev = new Event(type, { bubbles: true, composed: true }) as any;
@@ -343,6 +343,11 @@ class HouseplanCard extends LitElement {
       e.preventDefault();
       if (this._mergeSel) this._mergeSel = null;
       else this._tool = 'draw';
+      return;
+    }
+    if (this._tool === 'openwall' || this._tool === 'opening' || this._tool === 'delroom') {
+      e.preventDefault();
+      this._tool = 'draw';
     }
   }
 
@@ -417,6 +422,7 @@ class HouseplanCard extends LitElement {
         id: r.id,
         name: r.name,
         area: r.area ?? null,
+        open_to: r.open_to || undefined,
         x: r.x != null ? r.x * NORM_W : undefined,
         y: r.y != null ? r.y * H : undefined,
         w: r.w != null ? r.w * NORM_W : undefined,
@@ -1290,6 +1296,10 @@ class HouseplanCard extends LitElement {
       this._mergeClick(raw);
       return;
     }
+    if (this._tool === 'openwall') {
+      this._openWallClick(raw);
+      return;
+    }
     if (this._tool === 'split') {
       this._splitClick(raw);
       return;
@@ -1588,6 +1598,73 @@ class HouseplanCard extends LitElement {
     </div>`;
   }
 
+  /** Dashed strokes over open (virtual) boundaries; highlighted in the tool. */
+  private _renderOpenWalls(): TemplateResult {
+    const pairs = this._openPairs();
+    if (!pairs.length) return svg`` as unknown as TemplateResult;
+    const hot = this._markup && this._tool === 'openwall';
+    return svg`<g class="openwalls ${hot ? 'hot' : ''}">
+      ${pairs.flatMap((p) => p.segs.map((sg) => svg`<line class="openwall"
+        x1="${sg[0]}" y1="${sg[1]}" x2="${sg[2]}" y2="${sg[3]}"></line>`))}
+    </g>` as unknown as TemplateResult;
+  }
+
+  /** All open-boundary pairs of the current space with their shared segments. */
+  private _openPairs(): { a: RoomCfg; b: RoomCfg; segs: number[][] }[] {
+    const rooms = this._spaceModel().rooms.filter((r) => r.id);
+    const res: { a: RoomCfg; b: RoomCfg; segs: number[][] }[] = [];
+    for (let i = 0; i < rooms.length; i++)
+      for (let j = i + 1; j < rooms.length; j++) {
+        const a = rooms[i], b = rooms[j];
+        const linked = ((a as any).open_to || []).includes(b.id) || ((b as any).open_to || []).includes(a.id);
+        if (!linked) continue;
+        const pa = roomPoly(a), pb = roomPoly(b);
+        if (!pa || !pb) continue;
+        const segs = sharedBoundary(pa, pb, this._gridPitch * 0.02);
+        if (segs.length) res.push({ a, b, segs });
+      }
+    return res;
+  }
+
+  /** Open-boundary tool: a click on a shared wall toggles its "virtual" state. */
+  private _openWallClick(raw: number[]): void {
+    const rooms = this._spaceModel().rooms.filter((r) => r.id);
+    const pull = this._gridPitch * 6;
+    let best: { a: RoomCfg; b: RoomCfg; d: number } | null = null;
+    for (let i = 0; i < rooms.length; i++)
+      for (let j = i + 1; j < rooms.length; j++) {
+        const pa = roomPoly(rooms[i]), pb = roomPoly(rooms[j]);
+        if (!pa || !pb) continue;
+        const segs = sharedBoundary(pa, pb, this._gridPitch * 0.02);
+        for (const seg of segs) {
+          const d = distToSegment(raw, seg);
+          if (d <= pull && (!best || d < best.d)) best = { a: rooms[i], b: rooms[j], d };
+        }
+      }
+    if (!best) {
+      this._showToast(this._t('toast.openwall_pick'));
+      return;
+    }
+    const sp = this._curSpaceCfg;
+    const ra = sp.rooms.find((r: any) => r.id === best!.a.id);
+    const rb = sp.rooms.find((r: any) => r.id === best!.b.id);
+    if (!ra || !rb) return;
+    const linked = (ra.open_to || []).includes(rb.id) || (rb.open_to || []).includes(ra.id);
+    if (linked) {
+      ra.open_to = (ra.open_to || []).filter((x: string) => x !== rb.id);
+      rb.open_to = (rb.open_to || []).filter((x: string) => x !== ra.id);
+      if (!ra.open_to.length) delete ra.open_to;
+      if (!rb.open_to.length) delete rb.open_to;
+      this._showToast(this._t('toast.openwall_closed', { a: ra.name || '', b: rb.name || '' }));
+    } else {
+      ra.open_to = [...(ra.open_to || []), rb.id];
+      rb.open_to = [...(rb.open_to || []), ra.id];
+      this._showToast(this._t('toast.openwall_opened', { a: ra.name || '', b: rb.name || '' }));
+    }
+    this._saveConfig();
+    this.requestUpdate();
+  }
+
   /** Opening tool: click an existing opening to edit it, or a wall to place one. */
   private _openingClick(raw: number[]): void {
     const eps = this._gridPitch * 1.5;
@@ -2700,15 +2777,25 @@ class HouseplanCard extends LitElement {
       const home = [...polys].reverse().find((x) => this._pointInRoom([pos.x, pos.y], x.r));
       let clip: string[] | null = null;
       if (home) {
-        const shapes: string[] = ['M ' + home.poly.map((p) => p[0] + ' ' + p[1]).join(' L ') + ' Z'];
+        // open (virtual) boundaries: light flows through the whole connected
-        // doorways of this room spill light into neighbouring rooms only
+        // zone of rooms, not just the source's own room (owner's spec)
+        const zoneIds = home.r.id ? openZoneOf(home.r.id, space.rooms) : new Set([home.r.id]);
+        const zone = polys.filter((x) => x.r.id && zoneIds.has(x.r.id));
+        const zoneList = zone.length ? zone : [home];
+        const shapes: string[] = zoneList.map(
+          (z) => 'M ' + z.poly.map((p) => p[0] + ' ' + p[1]).join(' L ') + ' Z',
+        );
+        // doorways on the ZONE's walls spill light into rooms outside the zone
+        const others = polys.filter((x) => !zoneList.includes(x)).map((x) => x.poly);
         for (const o of doors) {
-          const near = closestPointOnBoundary([o.rx, o.ry], home.poly);
+          const onZoneWall = zoneList.some((z) => {
-          if (!near || Math.hypot(near[0] - o.rx, near[1] - o.ry) > g * 0.75) continue;
+            const near = closestPointOnBoundary([o.rx, o.ry], z.poly);
+            return near && Math.hypot(near[0] - o.rx, near[1] - o.ry) <= g * 0.75;
+          });
+          if (!onZoneWall) continue;
           const rad = (o.angle * Math.PI) / 180;
           const dx = (Math.cos(rad) * o.rlen) / 2;
           const dy = (Math.sin(rad) * o.rlen) / 2;
-          const others = polys.filter((x) => x !== home).map((x) => x.poly);
           if (!hasRoomBehind([o.rx, o.ry], o.angle, [pos.x, pos.y], others, g * 0.6)) continue;
           const sector = doorSector([pos.x, pos.y], [o.rx - dx, o.ry - dy], [o.rx + dx, o.ry + dy], R);
           if (sector) shapes.push('M ' + sector.map((p) => p[0] + ' ' + p[1]).join(' L ') + ' Z');
@@ -3066,6 +3153,7 @@ class HouseplanCard extends LitElement {
                     @mouseleave=${() => (this._tip = null)}></rect>`;
               return svg`${shape}${label ? svg`<text class="rlabel" x="${c[0]}" y="${c[1]}">${r.name}</text>` : nothing}`;
             })}
+            ${this._renderOpenWalls()}
             ${disp.fill === 'glow' && !this._markup ? this._renderGlowLayer(space) : nothing}
             ${this._markup ? this._renderMarkupLayer(vb) : nothing}
             ${this._renderOpenings(disp)}
@@ -3662,6 +3750,11 @@ class HouseplanCard extends LitElement {
         title=${this._t('title.markup_opening')}>
         <ha-icon icon="mdi:door"></ha-icon>${this._t('markup.opening')}
       </button>
+      <button class="btn ${this._tool === 'openwall' ? 'on' : ''}"
+        @click=${() => { this._cancelPath(); this._tool = 'openwall'; }}
+        title=${this._t('title.markup_openwall')}>
+        <ha-icon icon="mdi:border-none-variant"></ha-icon>${this._t('markup.openwall')}
+      </button>
       <button class="btn ${this._tool === 'delroom' ? 'on' : ''}" @click=${() => (this._tool = 'delroom')}
         title=${this._t('title.markup_delroom')}>
         <ha-icon icon="mdi:delete-outline"></ha-icon>${this._t('markup.delete')}

src/i18n/en.json

@@ -293,5 +293,10 @@
   "marker.controls_filter": "Search lights and switches…",
   "info.controls": "Controls",
   "marker.glow_radius_label": "Glow radius (light-sources fill)",
-  "marker.glow_radius_hint": "empty = default from general settings"
+  "marker.glow_radius_hint": "empty = default from general settings",
+  "markup.openwall": "Open boundary",
+  "title.markup_openwall": "Open boundary — click a wall shared by two rooms to make it virtual: light flows through, the line turns dashed. Click again to close it.",
+  "toast.openwall_pick": "Click a wall shared by two rooms",
+  "toast.openwall_opened": "Boundary “{a}” ↔ “{b}” is now open",
+  "toast.openwall_closed": "Boundary “{a}” ↔ “{b}” is closed again"
 }

src/i18n/ru.json

@@ -293,5 +293,10 @@
   "marker.controls_filter": "Поиск ламп и выключателей…",
   "info.controls": "Управляет",
   "marker.glow_radius_label": "Радиус свечения (заливка «Свет по источникам»)",
-  "marker.glow_radius_hint": "пусто = по умолчанию из общих настроек"
+  "marker.glow_radius_hint": "пусто = по умолчанию из общих настроек",
+  "markup.openwall": "Открытая граница",
+  "title.markup_openwall": "Открытая граница — клик по общей стене двух комнат делает её условной: свет проходит насквозь, линия становится пунктирной. Повторный клик закрывает.",
+  "toast.openwall_pick": "Кликните по стене, разделяющей две комнаты",
+  "toast.openwall_opened": "Граница «{a}» ↔ «{b}» теперь открыта",
+  "toast.openwall_closed": "Граница «{a}» ↔ «{b}» снова закрыта"
 }

src/logic.ts

@@ -851,6 +851,76 @@ export function isControllable(entityId: string): boolean {
   return entityId.startsWith('light.') || entityId.startsWith('switch.');
 }
 
+// ---------------- open (virtual) boundaries ----------------
+
+/**
+ * Collinear overlapping stretches of two room outlines — their shared
+ * boundary. Handles the real-house case where neighbouring walls only
+ * PARTIALLY overlap (collinear, different lengths). Returns segments
+ * [x1,y1,x2,y2] with length > eps.
+ */
+export function sharedBoundary(a: number[][], b: number[][], eps = 1e-6): number[][] {
+  const res: number[][] = [];
+  if (!a || !b || a.length < 3 || b.length < 3) return res;
+  for (let i = 0; i < a.length; i++) {
+    const p1 = a[i], p2 = a[(i + 1) % a.length];
+    const dx = p2[0] - p1[0], dy = p2[1] - p1[1];
+    const len = Math.hypot(dx, dy);
+    if (len < eps) continue;
+    const ux = dx / len, uy = dy / len;
+    for (let j = 0; j < b.length; j++) {
+      const q1 = b[j], q2 = b[(j + 1) % b.length];
+      // both q endpoints must lie on the line of p1-p2
+      const d1 = Math.abs((q1[0] - p1[0]) * uy - (q1[1] - p1[1]) * ux);
+      const d2 = Math.abs((q2[0] - p1[0]) * uy - (q2[1] - p1[1]) * ux);
+      const tol = Math.max(eps, len * 1e-6);
+      if (d1 > tol || d2 > tol) continue;
+      // overlap of parameter intervals along the line
+      const t1 = (q1[0] - p1[0]) * ux + (q1[1] - p1[1]) * uy;
+      const t2 = (q2[0] - p1[0]) * ux + (q2[1] - p1[1]) * uy;
+      const lo = Math.max(0, Math.min(t1, t2));
+      const hi = Math.min(len, Math.max(t1, t2));
+      if (hi - lo > eps) {
+        res.push([p1[0] + ux * lo, p1[1] + uy * lo, p1[0] + ux * hi, p1[1] + uy * hi]);
+      }
+    }
+  }
+  return res;
+}
+
+/**
+ * Connected component of rooms joined by open (virtual) boundaries — the
+ * "open zone" light flows through. The open_to link counts in either
+ * direction. Returns a set of room ids including the start.
+ */
+export function openZoneOf(roomId: string, rooms: { id?: string; open_to?: string[] | null }[]): Set<string> {
+  const zone = new Set<string>([roomId]);
+  const linked = (x: any, y: any) =>
+    (x.open_to || []).includes(y.id) || (y.open_to || []).includes(x.id);
+  let grew = true;
+  while (grew) {
+    grew = false;
+    for (const r of rooms) {
+      if (!r.id || zone.has(r.id)) continue;
+      for (const z of rooms) {
+        if (!z.id || !zone.has(z.id)) continue;
+        if (linked(r, z)) { zone.add(r.id); grew = true; break; }
+      }
+    }
+  }
+  return zone;
+}
+
+/** Distance from a point to a segment [x1,y1,x2,y2]. */
+export function distToSegment(p: number[], s: number[]): number {
+  const dx = s[2] - s[0], dy = s[3] - s[1];
+  const len2 = dx * dx + dy * dy;
+  if (!len2) return Math.hypot(p[0] - s[0], p[1] - s[1]);
+  let t = ((p[0] - s[0]) * dx + (p[1] - s[1]) * dy) / len2;
+  t = Math.max(0, Math.min(1, t));
+  return Math.hypot(p[0] - (s[0] + t * dx), p[1] - (s[1] + t * dy));
+}
+
 /** Device classes whose active state is an emergency, not a status. */
 const ALARM_CLASSES = new Set(['smoke', 'gas', 'carbon_monoxide', 'moisture', 'safety', 'tamper', 'problem']);
 

src/styles.ts

@@ -538,9 +538,21 @@ export const cardStyles = css`
     /* room-picking stages: merge (both clicks) and split before a room is chosen */
     .stage.markup.tool-merge,
     .stage.markup.tool-split.pickstage,
+    .stage.markup.tool-openwall,
     .stage.markup.tool-delroom {
       cursor: pointer;
     }
+    .openwall {
+      stroke: var(--card-background-color, var(--hp-bg, #fff));
+      stroke-width: 3.2;
+      stroke-dasharray: 7 7;
+      pointer-events: none;
+      opacity: 0.9;
+    }
+    .openwalls.hot .openwall {
+      stroke: #ffc14d;
+      opacity: 1;
+    }
     .stage.markup .room {
       pointer-events: none;
     }

src/types.ts

@@ -1,6 +1,8 @@
 /** Shared types of the House Plan card. */
 
 export interface RoomCfg {
+  /** Rooms this one has an OPEN (virtual) boundary with — light flows through. */
+  open_to?: string[] | null;
   id?: string;
   name: string;
   area: string | null;

test/logic.test.mjs

@@ -6,6 +6,7 @@ import {
   splitRoomPath, polyContainsPoly, islandsOf,
   kelvinToRgb, glowColorOf, doorSector, hasRoomBehind,
   controlsAction, isControllable,
+  sharedBoundary, openZoneOf, distToSegment,
   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';
@@ -666,3 +667,39 @@ test('isControllable: lights and switches only', () => {
   assert.ok(!isControllable('cover.gate'));
   assert.ok(!isControllable('alarm_control_panel.home'));
 });
+
+test('sharedBoundary: exact, partial-collinear and none', () => {
+  const A = [[0, 0], [2, 0], [2, 2], [0, 2]];
+  // точное общее ребро x=2
+  const B = [[2, 0], [4, 0], [4, 2], [2, 2]];
+  const s1 = sharedBoundary(A, B);
+  assert.equal(s1.length >= 1, true);
+  const len = (s) => Math.hypot(s[2] - s[0], s[3] - s[1]);
+  assert.ok(Math.abs(Math.max(...s1.map(len)) - 2) < 1e-6);
+  // частичное коллинеарное наложение (дачный случай): стена соседа длиннее
+  const C = [[2, -1], [4, -1], [4, 3], [2, 3]];
+  const s2 = sharedBoundary(A, C);
+  assert.ok(Math.abs(Math.max(...s2.map(len)) - 2) < 1e-6); // перекрытие = наша стена
+  // нет наложения
+  assert.equal(sharedBoundary(A, [[5, 5], [6, 5], [6, 6], [5, 6]]).length, 0);
+  // перпендикулярное касание — не граница
+  assert.equal(sharedBoundary(A, [[2, 2], [3, 2], [3, 3], [2, 3]]).filter((s) => len(s) > 1e-6).length, 0);
+});
+
+test('openZoneOf: transitive, either-direction links', () => {
+  const rooms = [
+    { id: 'a', open_to: ['b'] },
+    { id: 'b' },                    // связь только со стороны a
+    { id: 'c', open_to: ['b'] },    // b↔c со стороны c
+    { id: 'd' },                    // не связан
+  ];
+  const z = openZoneOf('a', rooms);
+  assert.deepEqual([...z].sort(), ['a', 'b', 'c']);
+  assert.deepEqual([...openZoneOf('d', rooms)], ['d']);
+});
+
+test('distToSegment', () => {
+  assert.equal(distToSegment([0, 5], [0, 0, 0, 10]), 0);
+  assert.equal(distToSegment([3, 5], [0, 0, 0, 10]), 3);
+  assert.ok(Math.abs(distToSegment([-3, -4], [0, 0, 0, 10]) - 5) < 1e-9);
+});