From 9ae851d5b657ecf7431b0fa01a3874fc30e6fc13 Mon Sep 17 00:00:00 2001
From: Sergio Valor <jaildesigner@gmail.com>
Date: Sat, 21 Mar 2026 01:13:17 +0100
Subject: [PATCH] =?UTF-8?q?feat:=20limitar=20modo=20BOIDS=20a=20escenarios?=
 =?UTF-8?q?=20con=20=E2=89=A41.000=20bolas?=
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Pulsar B en escenarios 6-8 (o custom >1K) no activa boids y muestra
notificación. Cambiar de escenario estando en BOIDS queda bloqueado
si el destino supera BOIDS_MAX_BALLS (= SCENE_BALLS_5).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 source/defines.hpp |  2 ++
 source/engine.cpp  | 20 ++++++++++++++++++++
 source/engine.hpp  |  3 +++
 3 files changed, 25 insertions(+)

diff --git a/source/defines.hpp b/source/defines.hpp
index e5b0e53..ed0e6af 100644
--- a/source/defines.hpp
+++ b/source/defines.hpp
@@ -74,6 +74,8 @@ constexpr int BALL_COUNT_SCENARIOS[SCENARIO_COUNT] = {
     SCENE_BALLS_5, SCENE_BALLS_6, SCENE_BALLS_7, SCENE_BALLS_8
 };
 
+constexpr int BOIDS_MAX_BALLS = SCENE_BALLS_5;  // 1 000 bolas máximo en modo BOIDS
+
 // Límites de escenario para modos automáticos (índices en BALL_COUNT_SCENARIOS)
 //                          0    1    2    3     4     5      6      7
 constexpr int DEMO_AUTO_MIN_SCENARIO  = 2;  // mínimo 100 bolas
diff --git a/source/engine.cpp b/source/engine.cpp
index 663a533..5f75df1 100644
--- a/source/engine.cpp
+++ b/source/engine.cpp
@@ -564,7 +564,21 @@ void Engine::toggleDepthZoom() {
 }
 
 // Boids (comportamiento de enjambre)
+bool Engine::isScenarioAllowedForBoids(int scenario_id) const {
+    int ball_count = (scenario_id == CUSTOM_SCENARIO_IDX)
+        ? custom_scenario_balls_
+        : BALL_COUNT_SCENARIOS[scenario_id];
+    return ball_count <= BOIDS_MAX_BALLS;
+}
+
 void Engine::toggleBoidsMode(bool force_gravity_on) {
+    if (current_mode_ != SimulationMode::BOIDS) {
+        // Intentando activar BOIDS — verificar escenario actual
+        if (!isScenarioAllowedForBoids(scene_manager_->getCurrentScenario())) {
+            showNotificationForAction("Boids: máximo 1.000 pelotas");
+            return;
+        }
+    }
     if (current_mode_ == SimulationMode::BOIDS) {
         // Salir del modo boids
         current_mode_ = SimulationMode::PHYSICS;
@@ -654,6 +668,12 @@ void Engine::setCustomScenario(int balls) {
 
 // Escenarios (número de pelotas)
 void Engine::changeScenario(int scenario_id, const char* notification_text) {
+    if (current_mode_ == SimulationMode::BOIDS) {
+        if (!isScenarioAllowedForBoids(scenario_id)) {
+            showNotificationForAction("Boids: máximo 1.000 pelotas");
+            return;
+        }
+    }
     // Pasar el modo actual al SceneManager para inicialización correcta
     scene_manager_->changeScenario(scenario_id, current_mode_);
 
diff --git a/source/engine.hpp b/source/engine.hpp
index 8b90e45..7a2d89c 100644
--- a/source/engine.hpp
+++ b/source/engine.hpp
@@ -269,6 +269,9 @@ class Engine {
         // PostFX helper
         void applyPostFXPreset(int mode);
 
+        // Boids: comprueba si un escenario tiene ≤ BOIDS_MAX_BALLS bolas
+        bool isScenarioAllowedForBoids(int scenario_id) const;
+
         // GPU helpers
         bool loadGpuSpriteTexture(size_t index);   // Upload one sprite texture to GPU
         void recreateOffscreenTexture();            // Recreate when resolution changes