public bool TestForHit(Vector2 screenPoint, Camera eventCamera, Action <string, int> block)
{
TMP_TextInfo textInfo = null;
TMP_Text text = null;
if (entity.text != null)
{
text = entity.text;
textInfo = entity.text.textInfo;
}
if (entity.textGUI != null)
{
text = entity.textGUI;
textInfo = entity.textGUI.textInfo;
}
if (textInfo != null)
{
// find the closest link to our touch point
float minDistance = 999999;
TMP_LinkInfo minLinkInfo = new TMP_LinkInfo();
Transform rectTransform = text.transform;
Vector3 position = screenPoint;
// Convert position into Worldspace coordinates
TMP_TextUtilities.ScreenPointToWorldPointInRectangle(rectTransform, position, eventCamera, out position);
for (int i = 0; i < text.textInfo.linkCount; i++)
{
TMP_LinkInfo linkInfo = text.textInfo.linkInfo [i];
bool isBeginRegion = false;
Vector3 bl = Vector3.zero;
Vector3 tl = Vector3.zero;
Vector3 br = Vector3.zero;
Vector3 tr = Vector3.zero;
// Iterate through each character of the word
for (int j = 0; j < linkInfo.linkTextLength; j++)
{
int characterIndex = linkInfo.linkTextfirstCharacterIndex + j;
TMP_CharacterInfo currentCharInfo = text.textInfo.characterInfo [characterIndex];
int currentLine = currentCharInfo.lineNumber;
// Check if Link characters are on the current page
if (text.overflowMode == TextOverflowModes.Page && currentCharInfo.pageNumber + 1 != text.pageToDisplay)
{
continue;
}
if (isBeginRegion == false)
{
isBeginRegion = true;
bl = rectTransform.TransformPoint(new Vector3(currentCharInfo.bottomLeft.x, currentCharInfo.descender, 0));
tl = rectTransform.TransformPoint(new Vector3(currentCharInfo.bottomLeft.x, currentCharInfo.ascender, 0));
// If Word is one character
if (linkInfo.linkTextLength == 1)
{
isBeginRegion = false;
br = rectTransform.TransformPoint(new Vector3(currentCharInfo.topRight.x, currentCharInfo.descender, 0));
tr = rectTransform.TransformPoint(new Vector3(currentCharInfo.topRight.x, currentCharInfo.ascender, 0));
// Check for Intersection
IsCloserToPoint(position, bl, linkInfo, ref minDistance, ref minLinkInfo);
IsCloserToPoint(position, tl, linkInfo, ref minDistance, ref minLinkInfo);
IsCloserToPoint(position, tr, linkInfo, ref minDistance, ref minLinkInfo);
IsCloserToPoint(position, br, linkInfo, ref minDistance, ref minLinkInfo);
IsCloserToPoint(position, (bl + br + tl + tr) * 0.25f, linkInfo, ref minDistance, ref minLinkInfo);
}
}
// Last Character of Word
if (isBeginRegion && j == linkInfo.linkTextLength - 1)
{
isBeginRegion = false;
br = rectTransform.TransformPoint(new Vector3(currentCharInfo.topRight.x, currentCharInfo.descender, 0));
tr = rectTransform.TransformPoint(new Vector3(currentCharInfo.topRight.x, currentCharInfo.ascender, 0));
IsCloserToPoint(position, bl, linkInfo, ref minDistance, ref minLinkInfo);
IsCloserToPoint(position, tl, linkInfo, ref minDistance, ref minLinkInfo);
IsCloserToPoint(position, tr, linkInfo, ref minDistance, ref minLinkInfo);
IsCloserToPoint(position, br, linkInfo, ref minDistance, ref minLinkInfo);
IsCloserToPoint(position, (bl + br + tl + tr) * 0.25f, linkInfo, ref minDistance, ref minLinkInfo);
}
// If Word is split on more than one line.
else if (isBeginRegion && currentLine != text.textInfo.characterInfo [characterIndex + 1].lineNumber)
{
isBeginRegion = false;
br = rectTransform.TransformPoint(new Vector3(currentCharInfo.topRight.x, currentCharInfo.descender, 0));
tr = rectTransform.TransformPoint(new Vector3(currentCharInfo.topRight.x, currentCharInfo.ascender, 0));
IsCloserToPoint(position, bl, linkInfo, ref minDistance, ref minLinkInfo);
IsCloserToPoint(position, tl, linkInfo, ref minDistance, ref minLinkInfo);
IsCloserToPoint(position, tr, linkInfo, ref minDistance, ref minLinkInfo);
IsCloserToPoint(position, br, linkInfo, ref minDistance, ref minLinkInfo);
IsCloserToPoint(position, (bl + br + tl + tr) * 0.25f, linkInfo, ref minDistance, ref minLinkInfo);
}
}
}
int linkIdx = Array.IndexOf(text.textInfo.linkInfo, minLinkInfo);
if (linkIdx >= 0)
{
if (block != null)
{
block(minLinkInfo.GetLinkText(), linkIdx);
}
return(true);
}
}
return(false);
}
