void Start()
{
// void can be switched to IEnumerator for support coroutines.
_world = new EcsWorld();
_systems = new EcsSystems(_world);
_systemsFixed = new EcsSystems(_world);
_input = new ActionMap();
_input.Enable();
#if UNITY_EDITOR
Leopotam.Ecs.UnityIntegration.EcsWorldObserver.Create(_world);
Leopotam.Ecs.UnityIntegration.EcsSystemsObserver.Create(_systems);
Leopotam.Ecs.UnityIntegration.EcsSystemsObserver.Create(_systemsFixed);
#endif
_systemsFixed
.Add(new TankMoveSystem())
.Inject(_input)
.Init();
_systems //order is important!!
//init
.Add(new TankTransformInitSystem())
.Add(new TankPropertiesInitSystem())
.Add(new PoolInitSystem())
.Add(new EnemyInitSystem())
.Add(new InputEventSystem())
//run
.Add(new InputUpdateSystem())
.Add(new ShootingSystem())
.Add(new GunSwitchSystem())
.Add(new CollisionHandleSystem())
.Add(new EnemySpawnSystem())
.Add(new DamageSystem())
.Add(new UiViewSystem())
.Add(new InputUiSystem())
.Add(new SoundSystem())
.Add(new GameStateSystem())
.OneFrame <CollisionEvent>()
.OneFrame <DamageEvent>()
.OneFrame <GunSwitchEvent>()
.OneFrame <ShootingEvent>()
.OneFrame <GameStateSwitchEvent>()
.Inject(_input)
.Inject(_sceneInfo)
.InjectUi(_sceneInfo._ui)
.Init();
}