public override void Update(float deltaTime)
{
DrawInfos.Clear();
Transform = MathHelper.GetMatrix(Scale, Rotation, Position);
base.Update(deltaTime);
}
protected override void ApplySpriteTransform(Sprite sprite, SpriterObject info)
{
bool rotated = sprite.Rotated;
Vector2 position = new Vector2(info.X, -info.Y);
Vector2 scale = new Vector2(info.ScaleX, info.ScaleY);
float rotation = -info.Angle * MathHelper.DegToRad;
bool flipX = (scale.X * Scale.X) < 0;
bool flipY = (scale.Y * Scale.Y) < 0;
SpriteEffects effects = SpriteEffects.None;
if (flipX)
{
effects |= !rotated ? SpriteEffects.FlipHorizontally : SpriteEffects.FlipVertically;
}
if (flipY)
{
effects |= !rotated ? SpriteEffects.FlipVertically : SpriteEffects.FlipHorizontally;
}
float originX;
float originY;
if (Scale.X < 0)
{
position = new Vector2(-position.X, position.Y);
rotation = -rotation;
}
if (Scale.Y < 0)
{
position = new Vector2(position.X, -position.Y);
rotation = -rotation;
}
if (!rotated)
{
if (!flipX)
{
originX = info.PivotX * sprite.Width - sprite.TrimLeft;
}
else
{
originX = (1 - info.PivotX) * sprite.Width - sprite.TrimRight;
}
if (!flipY)
{
originY = (1 - info.PivotY) * sprite.Height - sprite.TrimTop;
}
else
{
originY = info.PivotY * sprite.Height - sprite.TrimBottom;
}
}
else
{
if (!flipX)
{
originX = info.PivotY * sprite.Height - sprite.TrimBottom;
originY = info.PivotX * sprite.Width - sprite.TrimLeft;
}
else
{
originX = (1 - info.PivotY) * sprite.Height - sprite.TrimTop;
originY = (1 - info.PivotX) * sprite.Width - sprite.TrimRight;
}
}
Matrix globalTransform = MathHelper.GetMatrix(scale, rotation, position) * Transform;
globalTransform.DecomposeMatrix(out scale, out rotation, out position);
float depth = Depth + DeltaDepth * DrawInfos.Count;
depth = (depth < 0) ? 0 : (depth > 1) ? 1 : depth;
DrawInfo di = DrawInfoPool.Count > 0 ? DrawInfoPool.Pop() : new DrawInfo();
di.Sprite = sprite;
di.Position = position;
di.Origin = new Vector2(originX, originY);
di.Scale = scale;
di.Rotation = rotation + (sprite.Rotated ? SpriteAtlasRotation : 0);
di.Color = Color.White * info.Alpha;
di.Effects = effects;
di.Depth = depth;
DrawInfos.Add(di);
}
