public void Execute(int i)
{
var pos = local_to_world_list_[i].Value.c3.xyz;
var td = trail_data_list_[i];
var trail_points = trail_points_list_[i];
// flow
for (var j = 0; j < trail_points.Length; ++j)
{
var tp = trail_points[j];
tp.position_.z += flow_z_;
trail_points[j] = tp;
}
var index = td.trail_head_index_;
if (current_time_ - td.last_update_index_time_ > 1f / 60f)
{
++index;
if (index >= TrailConfig.NODE_NUM)
{
index = 0;
}
td.trail_head_index_ = index;
td.last_update_index_time_ = current_time_;
trail_data_list_[i] = td;
}
var prev_idx = td.trail_head_index_ - 1;
if (prev_idx < 0)
{
prev_idx = TrailConfig.NODE_NUM - 1;
}
var prev_pos = trail_points[prev_idx].position_;
var normal = math.normalize(pos - prev_pos);
trail_points[index] = new TrailPoint {
position_ = pos, normal_ = normal,
};
}
public void Convert(Entity entity, EntityManager dstManager, GameObjectConversionSystem conversionSystem)
{
var data = new TrailComponent {
ColorBitPattern = Utility.ConvColorBitPattern(in color),
};
dstManager.AddComponentData(entity, data);
DynamicBuffer <TrailPoint> buf = dstManager.AddBuffer <TrailPoint>(entity);
for (var i = 0; i < buf.Length; ++i)
{
buf[i] = new TrailPoint {
Position = float3.zero,
};
}
dstManager.RemoveComponent(entity, typeof(Unity.Transforms.Translation));
dstManager.RemoveComponent(entity, typeof(Unity.Transforms.Rotation));
dstManager.RemoveComponent(entity, typeof(Unity.Transforms.LocalToWorld));
}