I'm Trying to make a rougelike in C# using Monogame and RogueSharp.

here is some of the code I have in Draw()

protected override void Draw(GameTime gameTime)
        {
            GraphicsDevice.Clear(Color.CornflowerBlue);

            _spriteBatch.Begin(SpriteSortMode.BackToFront, BlendState.AlphaBlend);

            int sizeOfSprites = 64;
            float scale = .25f;
            foreach (Cell cell in _map.GetAllCells())
            {
            // error in the line below    
            Microsoft.Xna.Framework.Rectangle position = new Microsoft.Xna.Framework.Rectangle(cell.X * sizeOfSprites * scale, cell.Y * sizeOfSprites * scale);
                if (cell.IsWalkable)
                {
                    _spriteBatch.Draw(floorSprite, position, null, Color.White, 0f, new Vector2(scale, scale), 0.0f, 0f);
                }
                else
                {
                    _spriteBatch.Draw(wallSprite, position, null, Color.White, 0f, new Vector2(scale, scale), 0.0f, 0f);
                }
            }

            _spriteBatch.End();

            base.Draw(gameTime);
        }

Returns:

Argument 2: cannot convert from 'float' to 'Microsoft.Xna.Framework.Point'

Argument 1: cannot convert from 'float' to 'Microsoft.Xna.Framework.Point'

CodePudding user response：

The Rectangle constructor either takes (Point location, Point size) or (Int32 x, Int32 y, Int32 width, Int32 height) but not (Float, Float) (what would that even mean?) - See docs.

So, two issues here:

• You need four values to uniquely specify a rectangle in 2D space, not two. Rectangle does that using X and Y of the top-left corner as well as width and height.
• The Rectangle constructor expects those values as integers and not floats.

Looking at your code, I'm guessing that you want to create a rectangle that has sizeOfSprites * scale as length of both sides, in which case you'd need to specify the size as follows:

Microsoft.Xna.Framework.Rectangle position = new Microsoft.Xna.Framework.Rectangle(
  (int)Math.Floor(cell.X * sizeOfSprites * scale),
  (int)Math.Floor(cell.Y * sizeOfSprites * scale),
  (int)Math.Floor(sizeOfSprites * scale),
  (int)Math.Floor(sizeOfSprites * scale)
);

I'm not sure what Cell is and whether its X/Y can be floats or not, so in case Math.Floor (rounding down) isn't the type of rounding you need, you can use Math.Round instead.