private void UpdateVertices()
{
Points.Clear();
if (!TransformPairs.Any())
{
Points.Add(Vector2.zero);
Points.Add(Vector2.zero);
}
else
{
var parentPos = RectTransform.position;
var parentSize = RectTransform.sizeDelta;
parentSize = new Vector2(1f / parentSize.x, 1f / parentSize.y);
for (int i = 0; i < TransformPairs.Count; ++i)
{
var pair = TransformPairs[i];
var posA = pair.A.position - parentPos;
var start = new Vector2(posA.x * parentSize.x, posA.y * parentSize.y);
var posB = pair.B.position - parentPos;
var end = new Vector2(posB.x * parentSize.x, posB.y * parentSize.y);
Points.Add(start);
Points.Add(end);
}
}
LineRenderer.Points = Points.ToArray();
}
//public void AddLine( RectTransform a, RectTransform b )
//{
// Debug.Log( "Adding line..." );
// var transformPair = new RectTransformPair( a, b );
// if ( TransformPairs.Contains( transformPair ) )
// throw new InvalidOperationException( "Line already defined." );
// TransformPairs.Add( transformPair );
// UpdateVertices();
//}
//public void RemoveLine( RectTransform a, RectTransform b )
//{
// var transformPair = new RectTransformPair( a, b );
// if ( !TransformPairs.Contains( transformPair ) )
// throw new InvalidOperationException( "Line not defined." );
// TransformPairs.Remove( transformPair );
// UpdateVertices();
//}
public void SetLines(IEnumerable <RectTransformPair> pairs)
{
TransformPairs.Clear();
if (pairs != null)
{
TransformPairs.AddRange(pairs);
}
UpdateVertices();
}
