Nuke Wars: enforce 2-team, separate spawn→preparation phase, block nukes during prep, and show prep+elapsed timers in HUD

src/core/game/Game.ts

@@ -656,6 +656,7 @@ export interface Game extends GameMap {
   isOnMap(cell: Cell): boolean;
   width(): number;
   height(): number;
+  inPreparationPhase(): boolean;
   map(): GameMap;
   miniMap(): GameMap;
   forEachTile(fn: (tile: TileRef) => void): void;

src/core/game/GameImpl.ts

@@ -96,8 +96,11 @@ export class GameImpl implements Game {
     this._width = _map.width();
     this._height = _map.height();
     this.unitGrid = new UnitGrid(this._map);
-
-    if (_config.gameConfig().gameMode === GameMode.Team) {
+    // Treat Team and NukeWars as team-based games (Nuke Wars is 2-team only)
+    if (
+      _config.gameConfig().gameMode === GameMode.Team ||
+      _config.gameConfig().gameMode === GameMode.NukeWars
+    ) {
       this.populateTeams();
     }
     this.addPlayers();
@@ -105,6 +108,10 @@ export class GameImpl implements Game {
 
   private populateTeams() {
     let numPlayerTeams = this._config.playerTeams();
+    // Force 2 teams for NukeWars
+    if (this._config.gameConfig().gameMode === GameMode.NukeWars) {
+      numPlayerTeams = 2;
+    }
     if (typeof numPlayerTeams !== "number") {
       const players = this._humans.length + this._nations.length;
       switch (numPlayerTeams) {
@@ -323,6 +330,14 @@ export class GameImpl implements Game {
     return this._ticks <= this.config().numSpawnPhaseTurns();
   }
 
+  inPreparationPhase(): boolean {
+    const spawn = this.config().numSpawnPhaseTurns();
+    const prep = this.config().numPreparationPhaseTurns?.()
+      ? this.config().numPreparationPhaseTurns()
+      : 0;
+    return this._ticks > spawn && this._ticks <= spawn + prep;
+  }
+
   ticks(): number {
     return this._ticks;
   }
@@ -666,7 +681,10 @@ export class GameImpl implements Game {
 
   teams(): Team[] {
     if (this._config.gameConfig().gameMode !== GameMode.Team) {
-      return [];
+      // Treat NukeWars as a team-based mode (2 teams)
+      if (this._config.gameConfig().gameMode !== GameMode.NukeWars) {
+        return [];
+      }
     }
     return [this.botTeam, ...this.playerTeams];
   }

src/core/game/GameView.ts

@@ -637,6 +637,12 @@ export class GameView implements GameMap {
   inSpawnPhase(): boolean {
     return this.ticks() <= this._config.numSpawnPhaseTurns();
   }
+
+  inPreparationPhase(): boolean {
+    const spawn = this._config.numSpawnPhaseTurns();
+    const prep = this._config.numPreparationPhaseTurns();
+    return this.ticks() > spawn && this.ticks() <= spawn + prep;
+  }
   config(): Config {
     return this._config;
   }

src/core/game/PlayerImpl.ts

@@ -991,6 +991,12 @@ export class PlayerImpl implements Player {
   }
 
   nukeSpawn(tile: TileRef): TileRef | false {
+    // During the Nuke Wars preparation phase nukes cannot be launched across
+    // to enemy territory. Block all nuke launches while in the preparation phase.
+    const gc = this.mg.config().gameConfig();
+    if (gc.gameMode === GameMode.NukeWars && this.mg.inPreparationPhase()) {
+      return false;
+    }
     const owner = this.mg.owner(tile);
     if (owner.isPlayer()) {
       if (this.isOnSameTeam(owner)) {