void LeoECS()
{
_world = new EcsWorld();
JobMoveSystem.MinSpeed = param.minSpeed;
JobMoveSystem.MaxSpeed = param.maxSpeed;
JobMoveSystem.BoidScale = boidScale;
JobMoveSystem.WallScale = param.wallScale * 0.5f;
JobMoveSystem.WallDistance = param.wallDistance;
JobMoveSystem.WallWeight = param.wallWeight;
JobMoveSystem.NeighborFov = math.cos(math.radians(param.neighborFov));
JobMoveSystem.NeighborDistance = param.neighborDistance;
JobMoveSystem.SeparationWeight = param.separationWeight;
JobMoveSystem.AlignmentWeight = param.alignmentWeight;
JobMoveSystem.CohesionWeight = param.cohesionWeight;
JobMoveSystem.EntitiesCount = boidCount;
JobMoveSystem.NumBoidsPerJob = boidCount / System.Environment.ProcessorCount;
if (BoidsVisualisationSystem._nativeMatrices.IsCreated)
{
BoidsVisualisationSystem._nativeMatrices.Dispose();
}
BoidsVisualisationSystem._nativeMatrices = new NativeArray <Matrix4x4> (boidCount, Allocator.Persistent);
BoidsVisualisationSystem._matrices = new Matrix4x4[boidCount];
var timeSystem = new TimeSystem();
_systems = new EcsSystems(_world);
_systems
.Add(timeSystem)
.Add(new BoidsSimulationSystem())
.Add(new JobMoveSystem())
.Add(new BoidsVisualisationSystem()
{
mesh = mesh, material = material, scale = boidScale
})
.Inject(timeSystem)
.Initialize();
var random = new Unity.Mathematics.Random(853);
BoidEntityData.Create(boidCount);
for (int i = 0; i < boidCount; ++i)
{
var initSpeed = param.initSpeed;
//init them with these default values
var boid = _world.CreateEntityWith <BoidEntityData> ();
boid.id = i;
boid.Position = random.NextFloat3(1f);
boid.Velocity = random.NextFloat3Direction() * initSpeed;;
boid.Acceleration = float3.zero;
}
_world.ProcessDelayedUpdates();
}
void OnDestroy()
{
if (_systems != null)
{
// destroy systems logical group.
_systems.Dispose();
_systems = null;
// destroy world.
_world.Dispose();
_world = null;
BoidEntityData.Dispose();
BoidsVisualisationSystem._nativeMatrices.Dispose();
}
}