From f4a74ffbd75ddc5fcb7abdf54c35b9d5d6bbeadb Mon Sep 17 00:00:00 2001
From: Rodolfo Barcelli Jo <rodolfo.barcelli@gmail.com>
Date: Thu, 22 Jan 2026 22:35:20 +0800
Subject: [PATCH] Fix: Bug with spawning where it would get stuck after
 reaching max entities Update: increase max entity count and increase spawn
 rate

---
 becs.h                       | 20 ++++++++------------
 examples/example1/example1.c | 13 +++++++++----
 2 files changed, 17 insertions(+), 16 deletions(-)

diff --git a/becs.h b/becs.h
index 8df4f4b..56da0d0 100644
--- a/becs.h
+++ b/becs.h
@@ -315,11 +315,6 @@ BECS_Entity BECS_EntityCreate(BECS_ECS *ecs)
 
     BECS_Entity entity = BECS_NULL_ENTITY;
 
-    if (ecs->nextEntity + 1 > BECS_MAX_ENTITIES)
-    {
-        return entity;
-    }
-
     if (ecs->freeEntityCount)
     {
         /* Pop entity off the back of the free list */
@@ -327,14 +322,15 @@ BECS_Entity BECS_EntityCreate(BECS_ECS *ecs)
         ecs->entitySignatures[entity] = 0;
         ecs->aliveEntities[entity] = true;
         ecs->entityCount++;
-        return entity;
     }
-
-    entity = ecs->nextEntity;
-    ecs->aliveEntities[entity] = true;
-    ecs->entitySignatures[entity] = 0;
-    ecs->nextEntity++;
-    ecs->entityCount++;
+    else if (ecs->nextEntity < BECS_MAX_ENTITIES)
+    {
+        entity = ecs->nextEntity;
+        ecs->aliveEntities[entity] = true;
+        ecs->entitySignatures[entity] = 0;
+        ecs->nextEntity++;
+        ecs->entityCount++;
+    }
     return entity;
 }
 
diff --git a/examples/example1/example1.c b/examples/example1/example1.c
index a45af71..50c8835 100644
--- a/examples/example1/example1.c
+++ b/examples/example1/example1.c
@@ -1,8 +1,9 @@
-#define BECS_MAX_ENTITIES 20
+#define BECS_MAX_ENTITIES 100000
 #define BECS_MAX_COMPONENTS 4
 #define BECS_IMPLEMENTATION
 #include "../../becs.h"
 #include <stdlib.h>
+#include <stdio.h>
 #include "external/raylib/src/raylib.h"
 
 // Component structs
@@ -49,6 +50,7 @@ int main(void) {
     // Initialize ECS
     size_t componentSizes[4] = {sizeof(Position), sizeof(Velocity), sizeof(Acceleration), sizeof(ParticleData)};
     size_t memSize = BECS_GetMinMemoryArenaSize(componentSizes, 4);
+    printf("%lu\n", memSize);
     char *memory = (char *)malloc(memSize);
     BECS_ECS ecs = BECS_InitECS(memory, memSize);
 
@@ -58,7 +60,7 @@ int main(void) {
     BECS_ComponentID accID = BECS_ComponentRegister(&ecs, sizeof(Acceleration), BECS_MAX_ENTITIES);
     BECS_ComponentID dataID = BECS_ComponentRegister(&ecs, sizeof(ParticleData), BECS_MAX_ENTITIES);
 
-    InitWindow(800, 400, "2D Particle System with BECS");
+    InitWindow(1600, 800, "2D Particle System with BECS");
 
     while (!WindowShouldClose()) {
         float dt = GetFrameTime();
@@ -76,9 +78,12 @@ int main(void) {
         }
 
         // Spawn particle on mouse click
-        if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON)) {
+        if (IsMouseButtonDown(MOUSE_LEFT_BUTTON)) {
             Vector2 mousePos = GetMousePosition();
-            SpawnParticle(&ecs, posID, velID, accID, dataID, mousePos.x, mousePos.y);
+            for (uint32_t i = 0; i < 10; i++)
+            {
+                SpawnParticle(&ecs, posID, velID, accID, dataID, mousePos.x, mousePos.y);
+            }
         }
 
         // Physics system: update position and velocity