public void AddingRemovingPerformance()
{
using var world = new GameWorld();
var component1 = world.RegisterComponent("Component1", new SingleComponentBoard(sizeof(int), 0));
for (var i = 0; i != 4; i++)
{
var entities = new GameEntityHandle[1000];
world.CreateEntityBulk(entities);
var sw = new Stopwatch();
sw.Start();
foreach (var ent in entities)
{
world.AddComponent(ent, component1);
}
sw.Stop();
if (i != 0)
{
Console.WriteLine($"Add -> {sw.Elapsed.TotalMilliseconds}ms");
}
sw.Restart();
foreach (var ent in entities)
{
world.RemoveComponent(ent, component1);
}
sw.Stop();
if (i != 0)
{
Console.WriteLine($"Remove -> {sw.Elapsed.TotalMilliseconds}ms");
}
}
}
public void TestBulk()
{
var lowest = TimeSpan.MaxValue;
var entities = new GameEntityHandle[entityCount];
for (var iteration = 0; iteration != 100; iteration++)
{
var world = new GameWorld();
var sw = new Stopwatch();
var componentType = world.AsComponentType <Component>();
sw.Start();
world.CreateEntityBulk(entities);
for (var i = 0; i != entityCount; i++)
{
var ent = entities[i];
world.AddComponent(ent, componentType);
world.RemoveEntity(ent);
}
sw.Stop();
if (lowest > sw.Elapsed)
{
lowest = sw.Elapsed;
}
}
Console.WriteLine($"{lowest.TotalMilliseconds}ms");
}
public void TestMillionEntitySystem()
{
const int size = 100_000;
var gameWorld = new GameWorld();
var entities = new GameEntityHandle[size];
gameWorld.CreateEntityBulk(entities);
var componentType = gameWorld.AsComponentType<IntComponent>();
for (var i = 0; i < size; i++)
{
gameWorld.AddComponent(entities[i], componentType);
}
var sw = new Stopwatch();
var lowest = TimeSpan.MaxValue;
using var runner = new ThreadBatchRunner(1f);
runner.StartPerformanceCriticalSection();
var query = new EntityQuery(gameWorld, new[] {componentType});
var system = new ArchetypeSystem<int>((in ReadOnlySpan<GameEntityHandle> entities, in SystemState<int> state) =>
{
var accessor = new ComponentDataAccessor<IntComponent>(state.World);
foreach (ref readonly var entity in entities)
accessor[entity].Value++;
}, query);
public void Test()
{
var world = new GameWorld();
var timeEntity = world.CreateEntity();
world.AddComponent(timeEntity, new Time {
Delta = 0.25f
});
var gravityEntity = world.CreateEntity();
var gravityComponent = world.AddComponent(gravityEntity, new Gravity {
Value = { Y = -9.6f }
});
var astronautOnEarth = world.CreateEntity();
world.AssignComponent(astronautOnEarth, gravityComponent);
world.AddComponent(astronautOnEarth, new Velocity {
Value = new Vector3(10, 0, 0)
});
world.AddComponent <Position>(astronautOnEarth);
var astronautOnMoon = world.CreateEntity();
world.AddComponent(astronautOnMoon, new Gravity {
Value = { Y = -4 }
});
world.AddComponent(astronautOnMoon, new Velocity {
Value = new Vector3(10, 0, 0)
});
world.AddComponent <Position>(astronautOnMoon);
public void Test1()
{
using var world = new GameWorld();
var component1 = world.RegisterComponent("Component1", new SingleComponentBoard(sizeof(int), 0));
var component2 = world.RegisterComponent("Component2", new SingleComponentBoard(sizeof(int), 0));
GameEntityHandle ent1, ent2, ent3;
ent1 = world.CreateEntity();
world.AddComponent(ent1, component1);
ent2 = world.CreateEntity();
world.AddComponent(ent2, component1);
world.AddComponent(ent2, component2);
ent3 = world.CreateEntity();
world.AddComponent(ent3, component1);
Assert.AreEqual(world.GetArchetype(ent1), world.GetArchetype(ent3));
Assert.AreNotEqual(world.GetArchetype(ent1), world.GetArchetype(ent2));
}
