public static void Lerp(ref Transform2D key1, ref Transform2D key2, float amount, ref Transform2D result)
{
result.Pos = Vector2.Lerp(key1.Pos, key2.Pos, amount);
result.Scale = Vector2.Lerp(key1.Scale, key2.Scale, amount);
result.Rot = MathHelper.Lerp(key1.Rot, key2.Rot, amount);
result.Origin = Vector2.Lerp(key1.Origin, key2.Origin, amount);
}
public static void Compose(ref Transform2D key1, ref Transform2D key2, ref Vector2 flipping, out Transform2D result)
{
result.Pos = key1.TransformPoint(key2.Pos, flipping);
result.Rot = key1.Rot + key2.Rot;
result.Scale = key1.Scale * key2.Scale;
result.Origin = key2.Origin;
}
public static void Compose(ref Transform2D key1, ref Transform2D key2, out Transform2D result)
{
Vector2 transformedPos = key1.TransformPoint(key2.Pos);
result.Pos = transformedPos;
result.Rot = key1.Rot + key2.Rot;
result.Scale = key1.Scale * key2.Scale;
}
public static void Compose(ref Transform2D key1, ref Transform2D key2, out Transform2D result)
{
Vector2 key2Origin = key2.Pos - key2.Origin;
Vector2 transformedPos = key1.TransformPoint(key2Origin);
result.Pos = transformedPos + key2.Origin * key1.Scale;
result.Rot = key1.Rot + key2.Rot;
result.Scale = key1.Scale * key2.Scale;
result.Origin = key2.Origin;
}
public static Transform2D Compose(Transform2D key1, Transform2D key2)
{
Transform2D result = new Transform2D();
Vector2 transformedPos = key1.TransformPoint(key2.Pos);
result.Pos = transformedPos;
result.Rot = key1.Rot + key2.Rot;
result.Scale = key1.Scale * key2.Scale;
return result;
}
public SpriteState(Texture2D texture)
{
Texture = texture;
Transform = Transform2D.Identity;
Transform.Origin = new Vector2(texture.Width / 2, texture.Height / 2);
Color = Color.White;
TextureRect = new Rectangle(0, 0, texture.Width, texture.Height);
FlipState = SpriteEffects.None;
Visible = true;
}
public static Transform2D Compose(Transform2D key1, Transform2D key2)
{
Transform2D result = new Transform2D();
Vector2 key2Origin = key2.Pos - key2.Origin;
Vector2 transformedPos = key1.TransformPoint(key2Origin);
result.Pos = transformedPos + key2.Origin * key1.Scale;
result.Rot = key1.Rot + key2.Rot;
result.Scale = key1.Scale * key2.Scale;
result.Origin = key2.Origin;
return result;
// Old way that didn't take origin into account
//Vector2 transformedPos = key1.TransformPoint(key2.Pos);
//result.Pos = transformedPos;
//result.Rot = key1.Rot + key2.Rot;
//result.Scale = key1.Scale * key2.Scale;
}
static Transform2D()
{
_identity = new Transform2D();
_identity.Scale = Vector2.One;
}
public static void Lerp(ref Transform2D key1, ref Transform2D key2, float amount, ref Transform2D result)
{
result.Pos = Vector2.Lerp(key1.Pos, key2.Pos, amount);
result.Scale = Vector2.Lerp(key1.Scale, key2.Scale, amount);
result.Rot = MathHelper.Lerp(key1.Rot, key2.Rot, amount);
}
static Transform2D()
{
_identity = new Transform2D();
_identity.Scale = Vector2.One;
}
public static void Lerp(ref Transform2D key1, ref Transform2D key2, float amount, ref Transform2D result)
{
result.Pos = Vector2.Lerp(key1.Pos, key2.Pos, amount);
result.Scale = Vector2.Lerp(key1.Scale, key2.Scale, amount);
result.Rot = Math.Abs(key2.Rot - key1.Rot) < MathHelper.Pi ?
MathHelper.Lerp(key1.Rot, key2.Rot, amount) : MathHelper.Lerp(key2.Rot, key1.Rot, amount);
result.Origin = Vector2.Lerp(key1.Origin, key2.Origin, amount);
}
public static void Compose(ref Transform2D key1, ref Transform2D key2, ref Vector2 flipping, out Transform2D result)
{
result.Pos = key1.TransformPoint(key2.Pos, flipping);
result.Rot = key1.Rot + key2.Rot;
result.Scale = key1.Scale * key2.Scale;
result.Origin = key2.Origin;
}