public void Execute(Entity entity, int index,
[ReadOnly] ref Spawner spawnerFromEntity,
[ReadOnly] ref LocalToWorld location)
{
var parent = spawnerFromEntity.Parent;
var horizontalInterval = spawnerFromEntity.HorizontalInterval;
var verticalInterval = spawnerFromEntity.VerticalInterval;
var depthInterval = spawnerFromEntity.DepthInterval;
var origin = parent != Entity.Null ? LocalToWorldFromEntity[parent].Value : location.Value;
for (var x = 0; x < spawnerFromEntity.CountX; x++)
{
for (var y = 0; y < spawnerFromEntity.CountY; y++)
{
for (var z = 0; z < spawnerFromEntity.CountZ; z++)
{
// Place the instantiated in a grid
var instance = CommandBuffer.Instantiate(index, spawnerFromEntity.Prefab);
var position = math.transform(
origin,
new float3((x - spawnerFromEntity.CountX * 0.5f) * horizontalInterval,
(y - spawnerFromEntity.CountY * 0.5f) * verticalInterval,
(z - spawnerFromEntity.CountZ * 0.5f) * depthInterval));
CommandBuffer.SetComponent(index, instance, new Translation {
Value = position
});
if (parent != Entity.Null)
{
CommandBuffer.SetParent(index, parent, instance);
}
}
}
}
CommandBuffer.DestroyEntity(index, entity);
}