C# XNA Array Removal

Question

I'm trying to make a simple brick breaker game. I have everything created with collision and simple physics. The ball bounces off the paddle and walls, but I'm having trouble with the bricks. I can get the ball to bounce off the bricks, I'm just not experienced enough to know how to make the brick disappear. The bricks are in an array. Is there some way to remove a brick/specific index of an array?

This is how I create the blocks

        int blockCount=0;

        for (int x = 0; x < 8; x++)
        {
            for (int y = 0; y < 5; y++)
            {
                blocks[blockCount] = Content.Load<Texture2D>("Block");
                blocksPosition[blockCount].X = 95 + (x * 75);
                blocksPosition[blockCount].Y = 20 + (y * 50);
                blockCount++;
            }
        }

This is how I do collision and how I would implement the brick removal

    public void DetectBlockBallCollision()
    {
        for (int i = 0; i<40; i++)
        {
            if ((ballPosition.Y + ball.Height) >= blocksPosition[i].Y &&
                (ballPosition.Y + ball.Height) < (blocksPosition[i].Y+75) &&
                (ballPosition.X + ball.Width) > blocksPosition[i].X &&
                ballPosition.X < (blocksPosition[i].X + blocks[i].Width))
            {
                movingUp = false;
                //whatever would get rid of block;
            }

        }

    }

I would just create an Active or Visible property on the brick and then use that to determine whether or not to draw it and/or calculate collisions for it. You could also just set the element to null and check for null in your loop. — TyCobb

Davor Mlinaric Davor Mlinaric · Accepted Answer · 2015-02-16T07:05:01

Don't load texture in your loop, load it only once in LoadContent.
Put properly Active (as TyCobb suggested) in your brick element and in collsion set it to true and then remove it somewhere outside loop.

bricks.removeAll(b => !(b.active))

By different properties your bricks could have health, destroyable property, brick that drop some item...

C# XNA Array Removal

2 Answers