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Performance update to UILineConnector only draw when child transforms move. 

https://bitbucket.org/UnityUIExtensions/unity-ui-extensions/issues/123/uilinerenderer-issues-with-specifying
release
Simon Jackson 2017-08-04 20:36:25 +01:00
parent 11ee80411f
commit 2294f34905
1 changed files with 20 additions and 0 deletions
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20
Scripts/Utilities/UILineConnector.cs
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@ -11,6 +11,7 @@ namespace UnityEngine.UI.Extensions
// The elements between which line segments should be drawn
public RectTransform[] transforms;
private Vector2[] previousPositions;
private RectTransform canvas;
private RectTransform rt;
private UILineRenderer lr;
@ -29,6 +30,19 @@ namespace UnityEngine.UI.Extensions
{
return;
}
//Performance check to only redraw when the child transforms move
if (previousPositions != null && previousPositions.Length == transforms.Length)
{
bool updateLine = false;
for (int i = 0; i < transforms.Length; i++)
{
if (!updateLine && previousPositions[i] != transforms[i].anchoredPosition)
{
updateLine = true;
}
}
if (!updateLine) return;
}
// Get the pivot points
Vector2 thisPivot = rt.pivot;
@ -61,6 +75,12 @@ namespace UnityEngine.UI.Extensions
lr.Points = points;
lr.RelativeSize = false;
lr.drivenExternally = true;
previousPositions = new Vector2[transforms.Length];
for (int i = 0; i < transforms.Length; i++)
{
previousPositions[i] = transforms[i].anchoredPosition;
}
}
}
}