private static Vector2 GetRealOffset(UIAnchorSide side, float inset, Vector2 baseOffset)
{
var result = baseOffset;
switch (side)
{
case UIAnchorSide.TopLeft:
result.X += inset;
result.Y += inset;
break;
case UIAnchorSide.TopRight:
result.X -= inset;
result.Y += inset;
break;
case UIAnchorSide.BottomLeft:
result.X += inset;
result.Y -= inset;
break;
case UIAnchorSide.BottomRight:
result.X -= inset;
result.Y -= inset;
break;
case UIAnchorSide.Top:
result.Y += inset;
break;
case UIAnchorSide.Bottom:
result.Y -= inset;
break;
case UIAnchorSide.Left:
result.X += inset;
break;
case UIAnchorSide.Right:
result.X -= inset;
break;
case UIAnchorSide.Center:
break;
default:
throw new ArgumentException($"{nameof(UIAnchorSide)} has an invalid value.");
}
return(result);
}
public static UIAnchorSide Opposite(this UIAnchorSide self)
{
return(self switch
{
UIAnchorSide.TopLeft => UIAnchorSide.BottomRight,
UIAnchorSide.TopRight => UIAnchorSide.BottomLeft,
UIAnchorSide.BottomLeft => UIAnchorSide.TopRight,
UIAnchorSide.BottomRight => UIAnchorSide.TopLeft,
UIAnchorSide.Center => UIAnchorSide.Center,
UIAnchorSide.Top => UIAnchorSide.Bottom,
UIAnchorSide.Bottom => UIAnchorSide.Top,
UIAnchorSide.Left => UIAnchorSide.Right,
UIAnchorSide.Right => UIAnchorSide.Left,
_ => throw new ArgumentException($"{nameof(UIAnchorSide)} has an invalid value."),
});
public UIAnchor(UIAnchorSide from, Vector2 offset, UIAnchorSide to)
{
this.From = from;
this.Offset = offset;
this.To = to;
}
public UIAnchor(UIAnchorSide from, float inset, Vector2 offset, UIAnchorSide to)
: this(from, GetRealOffset(from, inset, offset), to)
{
}
public void DrawItem(SpriteBatch batch, SObject @object, Vector2 rectLocation, Vector2 rectSize, Color color, UIAnchorSide rectAnchorSide = UIAnchorSide.TopLeft, Vector2?scale = null, float layerDepth = 0f)
{
var texture = GetItemTexture(@object);
var sourceRectangle = GetItemSourceRectangle(@object);
var itemSize = new Vector2(sourceRectangle.Size.X, sourceRectangle.Size.Y);
if (itemSize.X < rectSize.X && itemSize.Y < rectSize.Y)
{
itemSize *= Math.Max(rectSize.X, rectSize.Y);
}
if (itemSize.X > rectSize.X)
{
itemSize = itemSize / itemSize.X * rectSize.X;
}
if (itemSize.Y > rectSize.Y)
{
itemSize = itemSize / itemSize.Y * rectSize.Y;
}
var itemPosition = rectAnchorSide.GetAnchorPoint(
new Vector2(
rectLocation.X + (rectSize.X - itemSize.X) * 0.5f,
rectLocation.Y + (rectSize.Y - itemSize.Y) * 0.5f
),
-rectSize
);
var finalScale = itemSize.X / sourceRectangle.Width;
var origin = new Vector2(sourceRectangle.Width * 0.5f, sourceRectangle.Height);
batch.Draw(texture, itemPosition + origin * finalScale, sourceRectangle, color, 0f, origin, finalScale * (scale ?? Vector2.One), SpriteEffects.None, layerDepth);
if (@object is ColoredObject coloredObject)
{
batch.Draw(texture, itemPosition + origin * finalScale, GetColoredItemSourceRectangle(coloredObject), Color.Lerp(color, coloredObject.color.Value, 0.5f), 0f, origin, finalScale * (scale ?? Vector2.One), SpriteEffects.None, layerDepth);
}
}