CODEWITHSUNDEEP
c#linqlist
user3208290
user3208290

Reputation: 11

Updating a list by changing all its elements

I have these 3 lists.

public List<Rectangle> CoTree;
public List<Rectangle> CoRock;
public List<Rectangle> PlayerBlock = new List<Rectangle>();

In the update method I want to change all the elements in both lists(CoTree and CoRock) and to put both lists in PlayerBlock lits so that it will change all the elements in PlayerBlock. 

CoTree=tree.HitBox.FindAll(item => item.Intersects(player.HitBox));
CoRock=rock.HitBox.FindAll(item => item.Intersects(player.HitBox));

// what I need is PlayerBlock = CoTree+CoRock;

Upvotes: 0

Views: 60

Answers (2)

GvS
GvS

Reputation: 52528

I don't know if an item can occur in both CoTree and CoRock. If it can, you should use Union, to get a list in that contains every element only once:

PlayerBlock = CoTree.Union(CoRock).ToList();

You can use Concat if it is no problem that an element occurs twice in PlayerBlock:

PlayerBlock = CoTree.Concat(CoRock).ToList();

Upvotes: 2

JunaidKirkire
JunaidKirkire

Reputation: 918

You should use the Concat method.

You should use CoTree.Concat(CoRock) and then ToList() to convert to a List

Upvotes: 0

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