feat(control): spawn session NPCs and resize tokens in preview

Co-authored-by: Cursor <cursoragent@cursor.com>

app/main/index.ts

@@ -314,6 +314,28 @@ function emitSceneNpcTokensSessionState(): void {
   }
 }
 
+let npcMapSpawnDragNpcId: string | null = null;
+let npcMapSpawnHover: { nx: number; ny: number } | null = null;
+
+function emitNpcMapSpawnDragState(): void {
+  const state = {
+    dragging: Boolean(npcMapSpawnDragNpcId),
+    npcId: npcMapSpawnDragNpcId,
+    hoverNx: npcMapSpawnHover?.nx ?? null,
+    hoverNy: npcMapSpawnHover?.ny ?? null,
+  };
+  for (const win of BrowserWindow.getAllWindows()) {
+    win.webContents.send(ipcChannels.npcMapSpawn.stateChanged, { state });
+  }
+}
+
+function clearNpcMapSpawnDrag(): void {
+  if (!npcMapSpawnDragNpcId && !npcMapSpawnHover) return;
+  npcMapSpawnDragNpcId = null;
+  npcMapSpawnHover = null;
+  emitNpcMapSpawnDragState();
+}
+
 function emitScenePlayerTokensSessionState(): void {
   const state = scenePlayerTokensSessionStore.getState();
   for (const win of BrowserWindow.getAllWindows()) {
@@ -501,6 +523,7 @@ async function main() {
     sceneTokensSessionStore.reset();
     tokenPathSessionStore.reset();
     sceneNpcTokensSessionStore.reset();
+    clearNpcMapSpawnDrag();
     scenePlayerTokensSessionStore.reset();
     tokenGridSnapSessionStore.reset();
     if (USERS_BRANCH_FEATURES_ENABLED) {
@@ -646,6 +669,7 @@ async function main() {
     sceneViewStore.reset();
     sceneTokensSessionStore.reset();
     sceneNpcTokensSessionStore.reset();
+    clearNpcMapSpawnDrag();
     scenePlayerTokensSessionStore.reset();
     emitSceneViewState();
     emitSceneTokensSessionState();
@@ -666,6 +690,7 @@ async function main() {
     sceneViewStore.reset();
     sceneTokensSessionStore.reset();
     sceneNpcTokensSessionStore.reset();
+    clearNpcMapSpawnDrag();
     scenePlayerTokensSessionStore.reset();
     tokenGridSnapSessionStore.reset();
     emitEffectsState();
@@ -1611,6 +1636,62 @@ async function main() {
     emitSceneNpcTokensSessionState();
     return { ok: true };
   });
+  registerHandler(ipcChannels.npcMapSpawn.getState, () => {
+    return {
+      state: {
+        dragging: Boolean(npcMapSpawnDragNpcId),
+        npcId: npcMapSpawnDragNpcId,
+        hoverNx: npcMapSpawnHover?.nx ?? null,
+        hoverNy: npcMapSpawnHover?.ny ?? null,
+      },
+    };
+  });
+  registerHandler(ipcChannels.npcMapSpawn.beginDrag, ({ npcId }) => {
+    npcMapSpawnDragNpcId = String(npcId ?? '') || null;
+    npcMapSpawnHover = null;
+    emitNpcMapSpawnDragState();
+    return { ok: true };
+  });
+  registerHandler(ipcChannels.npcMapSpawn.setHover, ({ nx, ny }) => {
+    if (!npcMapSpawnDragNpcId) return { ok: true };
+    if (nx == null || ny == null || !Number.isFinite(nx) || !Number.isFinite(ny)) {
+      if (npcMapSpawnHover === null) return { ok: true };
+      npcMapSpawnHover = null;
+      emitNpcMapSpawnDragState();
+      return { ok: true };
+    }
+    const next = { nx: Math.max(0, Math.min(1, nx)), ny: Math.max(0, Math.min(1, ny)) };
+    if (npcMapSpawnHover && npcMapSpawnHover.nx === next.nx && npcMapSpawnHover.ny === next.ny) {
+      return { ok: true };
+    }
+    npcMapSpawnHover = next;
+    emitNpcMapSpawnDragState();
+    return { ok: true };
+  });
+  registerHandler(ipcChannels.npcMapSpawn.cancel, () => {
+    clearNpcMapSpawnDrag();
+    return { ok: true };
+  });
+  registerHandler(ipcChannels.npcMapSpawn.commit, () => {
+    const npcId = npcMapSpawnDragNpcId;
+    const hover = npcMapSpawnHover;
+    clearNpcMapSpawnDrag();
+    if (!npcId || !hover) return { spawned: false };
+    const project = projectStore.getOpenProject();
+    const sceneId = project?.currentSceneId;
+    const npc = project?.npcs.find((item) => item.id === npcId);
+    if (!sceneId || !npc) return { spawned: false };
+    sceneNpcTokensSessionStore.dispatch({
+      kind: 'spawn',
+      npcId: npc.id,
+      sceneId,
+      nx: hover.nx,
+      ny: hover.ny,
+      disposition: npc.disposition,
+    });
+    emitSceneNpcTokensSessionState();
+    return { spawned: true };
+  });
   registerHandler(ipcChannels.scenePlayerTokensSession.getState, () => {
     return { state: scenePlayerTokensSessionStore.getState() };
   });