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Updated small cubes' positions #292

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Updated small cubes' positions #292

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8 changes: 6 additions & 2 deletions EntitiesSamples/Assets/HelloCube/6. Reparenting/ReparentingSystem.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -60,12 +60,16 @@ public void OnUpdate(ref SystemState state)
// Attach all the small cubes to the rotator by adding a Parent component to the cubes.
// (The next time TransformSystemGroup updates, it will update the Child buffer and transforms accordingly.)

foreach (var (transform, entity) in
SystemAPI.Query<RefRO<LocalTransform>>()
var parentLocalToWorld = SystemAPI.GetComponent<LocalToWorld>(rotatorEntity);

foreach (var (localToWorld, entity) in
SystemAPI.Query<RefRO<LocalToWorld>>()
.WithNone<RotationSpeed>()
.WithEntityAccess())
{
ecb.AddComponent(entity, new Parent { Value = rotatorEntity });
float3 localPosition = math.transform(math.inverse(parentLocalToWorld.Value), localToWorld.ValueRO.Position);
ecb.SetComponent(entity, new LocalTransform { Position = localPosition, Rotation = quaternion.identity, Scale = 0.5f });
}

// Alternative solution instead of the above loop:
Expand Down