/// <summary>
/// draws an X
/// </summary>
/// <param name="sb">this spritebatch</param>
/// <param name="pos">the center location of the X</param>
/// <param name="size">width of the X</param>
public static void DrawX(this SpriteBatch sb, Vector2 pos, float size, LayerData layer)
{
Vector2 sizeVec = new Vector2(size / 2);
DrawLine(sb, pos - sizeVec, pos + sizeVec, Color.Black, layer);
sizeVec.Y = -sizeVec.Y;
DrawLine(sb, pos - sizeVec, pos + sizeVec, Color.Black, layer);
}
/// <summary>
/// creates a new sprite data instance
/// </summary>
public SpriteData()
{
FrameIndex = 0;
Speed = 1;
LayerData = new LayerData(0);
Offset = new Vector2(0, 0);
Origin = new Vector2(0, 0);
Size = new Vector2(0, 0);
SpriteEffect = SpriteEffects.None;
Source = null;
}
/// <summary>
/// draws a rectangle
/// </summary>
/// <param name="sb">the spritebatch to draw to</param>
/// <param name="a">top left</param>
/// <param name="b">bottom right</param>
/// <param name="color">color of rectangle</param>
/// <param name="layer">layer to draw at</param>
public static void DrawRectangle(this SpriteBatch sb, Vector2 a, Vector2 b, Color color, LayerData layer)
{
DrawRectangle(sb, a, b, color, layer.ActualLayer);
}
/// <summary>
/// draws a line to the spritebatch
/// </summary>
/// <param name="sb">this spritebatch</param>
/// <param name="a">beginning point of the line</param>
/// <param name="b">ending point of the line</param>
/// <param name="color">color of the line</param>
/// <param name="depth">layer to draw the line at</param>
public static void DrawLine(this SpriteBatch sb, Vector2 a, Vector2 b, Color color, LayerData layer)
{
if (singlePixel == null)
{
singlePixel = new Texture2D(sb.GraphicsDevice, 1, 1, false, SurfaceFormat.Color);
singlePixel.SetData(new Color[] { Color.White });
}
Vector2 dist = b - a;
float angle = (float)Math.Atan2(dist.Y, dist.X);
sb.Draw(singlePixel, a, null, color, angle, Vector2.Zero, new Vector2(dist.Length(), 1), SpriteEffects.None, layer.ActualLayer);
}
