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PORemove all the objects from a list that have the same value as any other Object from an other List. XNA
 

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    <p>I have two Lists of vector2: Position and Floor and I'm trying to do this: if a Position is the same as a Floor then delete the position from the List.</p> <p>Here is what I thought would work but it doesn't:</p> <pre><code> public void GenerateFloor() { //I didn't past all, the code add vectors to the floor List, etc. block.Floor.Add(new Vector2(block.Texture.Width, block.Texture.Height) + RoomLocation); // And here is the way I thought to delete the positions: block.Positions.RemoveAll(FloorSafe); } private bool FloorSafe(Vector2 x) { foreach (Vector2 j in block.Floor) { return x == j; } //or for (int n = 0; n &lt; block.Floor.Count; n++) { return x == block.Floor[n]; } } </code></pre> <p>I know this is not the good way, so how can I wright it? I need to delete all the Positions Vector2 that are the same As any of the Floors Vector2.</p> <p>=============================================================================== EDIT: It works! For people searching how to do it, here is my final code of the answer of Hexxagonal:</p> <pre><code>public void FloorSafe() { //Gets all the Vectors that are not equal to the Positions List. IEnumerable&lt;Vector2&gt; ReversedResult = block.Positions.Except(block.Floor); //Gets all the Vectors that are not equal to the result.. //(the ones that are equal to the Positions). IEnumerable&lt;Vector2&gt; Result = block.Positions.Except(ReversedResult); foreach (Vector2 Positions in Result.ToList()) { block.Positions.Remove(Positions); //Remove all the vectors from the List. } } </code></pre>
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