Compose standalone E3 Nexus without Leader Skills

game/nexus-module-profile.ts

@@ -1,6 +1,6 @@
 import { FACTIONS } from './catalog';
 import type { FactionModuleProfile } from './faction-module-profile';
-import { classicDiscoveryNexusProfile, pairedDiscoveryNexusProfile } from './discovery-module-profile';
+import { classicDiscoveryNexusProfile, pairedDiscoveryNexusProfile, standaloneE3DiscoveryNexusProfile } from './discovery-module-profile';
 
 /** Original classic Nexus modules, optionally Homeworlds; initializer checks undealt components. */
 export function classicNexusModulesProfile(game: FactionModuleProfile): boolean {
@@ -56,3 +56,35 @@ export function pairedNexusModulesProfile(game: FactionModuleProfile): boolean {
   }
   return hasPrimary && hasSecondary;
 }
+
+/** One original E3 native/classics without Skills, optionally Homeworlds,
+ * Discovery, Tech or Advanced Strongholds; setup owns undealt physical pieces. */
+export function standaloneE3NexusProfile(game: FactionModuleProfile): boolean {
+  if (game.discoveryEnabled || game.discoveries) return standaloneE3DiscoveryNexusProfile(game);
+  if (typeof game.advanced !== 'boolean' || !game.nexusCards ||
+    game.expansions.length !== 1 || game.expansions[0] !== 'ecaz' ||
+    game.players.length < 2 || game.players.length > 6 ||
+    (game.techTokens && game.players.length < 3) ||
+    (game.strongholdCards && !game.advanced) || game.leaderSkills ||
+    game.discoveryEnabled || game.discoveries || game.discoveryStash || game.greatMaker ||
+    game.ecazTreachery || game.semutaPreview || game.advancedPreview ||
+    game.kullPreview || game.nexusKullPreview || game.guildBetrayalPreview ||
+    game.richeseBetrayalPreview || game.nexusIxianReplacementPreview ||
+    game.nexusIxianBetrayalPreview || game.nexusHarkonnenBetrayalPreview) return false;
+  let native: 'ecaz' | 'moritani' | null = null, harkonnen = false;
+  for (let i = 0; i < game.players.length; i++) {
+    const player = game.players[i];
+    for (let j = 0; j < i; j++) if (player.faction === game.players[j].faction) return false;
+    if (player.faction === 'ecaz' || player.faction === 'moritani') {
+      if (native !== null) return false;
+      native = player.faction;
+    } else {
+      let classic = false;
+      for (const faction of FACTIONS)
+        if (faction.id === player.faction) { classic = faction.expansion === 'base'; break; }
+      if (!classic) return false;
+    }
+    if (player.faction === 'harkonnen') harkonnen = true;
+  }
+  return native !== null && !(game.advanced && native === 'moritani' && harkonnen);
+}