Fix aliveness check for emitter

Emitter aliveness should be checked with its finish state

Also update bubbling to re-activate an still alive handle

engine/particle_sys.c

@@ -130,7 +130,7 @@ bool is_emitter_handle_alive(ParticleSystem_t* system, EmitterHandle handle)
 {
     if (handle == 0) return false;
 
-    return system->emitters[handle].active;
+    return !system->emitters[handle].finished;
 }
 
 EmitterHandle play_particle_emitter(ParticleSystem_t* system, const ParticleEmitter_t* in_emitter)

scenes/game_systems.c

@@ -1495,6 +1495,10 @@ void state_transition_update_system(Scene_t* scene)
                     };
                     p_emitter->handle = play_particle_emitter(&scene->part_sys, &emitter);
                 }
+                else
+                {
+                    play_emitter_handle(&scene->part_sys, p_emitter->handle);
+                }
             }
         }
     }