TMPro.TMP_TextUtilities.ScreenPointToWorldPointInRectangle(UnityEngine.Transform, UnityEngine.Vector2, UnityEngine.Camera, out UnityEngine.Vector3)

public static int GetCursorIndexFromPosition(TMP_Text textComponent, Vector3 position, Camera camera, out CaretPosition cursor)
        {
            int line = TMP_TextUtilities.FindNearestLine(textComponent, position, camera);

            int index = FindNearestCharacterOnLine(textComponent, position, line, camera, false);

            // Special handling if line contains only one character.
            if (textComponent.textInfo.lineInfo[line].characterCount == 1)
            {
                cursor = CaretPosition.Left;
                return index;
            }

            RectTransform rectTransform = textComponent.rectTransform;

            // Convert position into Worldspace coordinates
            ScreenPointToWorldPointInRectangle(rectTransform, position, camera, out position);

            TMP_CharacterInfo cInfo = textComponent.textInfo.characterInfo[index];

            // Get Bottom Left and Top Right position of the current character
            Vector3 bl = rectTransform.TransformPoint(cInfo.bottomLeft);
            Vector3 tr = rectTransform.TransformPoint(cInfo.topRight);

            float insertPosition = (position.x - bl.x) / (tr.x - bl.x);

            if (insertPosition < 0.5f)
            {
                cursor = CaretPosition.Left;
                return index;
            }
            else
            {
                cursor = CaretPosition.Right;
                return index;
            }
        }

public static int FindNearestLine(TMP_Text text, Vector3 position, Camera camera)
        {
            RectTransform rectTransform = text.rectTransform;

            float distance = Mathf.Infinity;
            int closest = -1;

            // Convert position into Worldspace coordinates
            ScreenPointToWorldPointInRectangle(rectTransform, position, camera, out position);

            for (int i = 0; i < text.textInfo.lineCount; i++)
            {
                TMP_LineInfo lineInfo = text.textInfo.lineInfo[i];

                float ascender = rectTransform.TransformPoint(new Vector3(0, lineInfo.ascender, 0)).y;
                float descender = rectTransform.TransformPoint(new Vector3(0, lineInfo.descender, 0)).y;

                if (ascender > position.y && descender < position.y)
                { 
                    //Debug.Log("Position is on line " + i);
                    return i;
                }

                float d0 = Mathf.Abs(ascender - position.y);
                float d1 = Mathf.Abs(descender - position.y);

                float d = Mathf.Min(d0, d1);
                if (d < distance)
                {
                    distance = d;
                    closest = i;
                }
            }

            //Debug.Log("Closest line to position is " + closest);
            return closest;
        }

public static int FindIntersectingLink(TMP_Text text, Vector3 position, Camera camera)
        {
            Transform rectTransform = text.transform;

            // Convert position into Worldspace coordinates
            ScreenPointToWorldPointInRectangle(rectTransform, position, camera, 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));

                        //Debug.Log("Start Word Region at [" + currentCharInfo.character + "]");

                        // 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
                            if (PointIntersectRectangle(position, bl, tl, tr, br))
                                return i;

                            //Debug.Log("End Word Region at [" + currentCharInfo.character + "]");
                        }
                    }

                    // 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));

                        // Check for Intersection
                        if (PointIntersectRectangle(position, bl, tl, tr, br))
                            return i;

                        //Debug.Log("End Word Region at [" + currentCharInfo.character + "]");
                    }
                    // 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));

                        // Check for Intersection
                        if (PointIntersectRectangle(position, bl, tl, tr, br))
                            return i;

                        //Debug.Log("End Word Region at [" + currentCharInfo.character + "]");
                    }
                }

                //Debug.Log("Word at Index: " + i + " is located at (" + bl + ", " + tl + ", " + tr + ", " + br + ").");

            }

            return -1;
        }

public static int GetCursorIndexFromPosition(TMP_Text textComponent, Vector3 position, Camera camera)
        {
            int index = TMP_TextUtilities.FindNearestCharacter(textComponent, position, camera, false);

            RectTransform rectTransform = textComponent.rectTransform;

            // Convert position into Worldspace coordinates
            ScreenPointToWorldPointInRectangle(rectTransform, position, camera, out position);

            TMP_CharacterInfo cInfo = textComponent.textInfo.characterInfo[index];

            // Get Bottom Left and Top Right position of the current character
            Vector3 bl = rectTransform.TransformPoint(cInfo.bottomLeft);
            Vector3 tr = rectTransform.TransformPoint(cInfo.topRight);

            float insertPosition = (position.x - bl.x) / (tr.x - bl.x);

            if (insertPosition < 0.5f)
                return index;
            else
                return index + 1;

        }

public static int FindIntersectingWord(TMP_Text text, Vector3 position, Camera camera)
        {
            RectTransform rectTransform = text.rectTransform;

            // Convert position into Worldspace coordinates
            ScreenPointToWorldPointInRectangle(rectTransform, position, camera, out position);

            for (int i = 0; i < text.textInfo.wordCount; i++)
            {
                TMP_WordInfo wInfo = text.textInfo.wordInfo[i];

                bool isBeginRegion = false;

                Vector3 bl = Vector3.zero;
                Vector3 tl = Vector3.zero;
                Vector3 br = Vector3.zero;
                Vector3 tr = Vector3.zero;

                float maxAscender = -Mathf.Infinity;
                float minDescender = Mathf.Infinity;

                // Iterate through each character of the word
                for (int j = 0; j < wInfo.characterCount; j++)
                {
                    int characterIndex = wInfo.firstCharacterIndex + j;
                    TMP_CharacterInfo currentCharInfo = text.textInfo.characterInfo[characterIndex];
                    int currentLine = currentCharInfo.lineNumber;

                    bool isCharacterVisible = currentCharInfo.isVisible;

                    // Track maximum Ascender and minimum Descender for each word.
                    maxAscender = Mathf.Max(maxAscender, currentCharInfo.ascender);
                    minDescender = Mathf.Min(minDescender, currentCharInfo.descender);

                    if (isBeginRegion == false && isCharacterVisible)
                    {
                        isBeginRegion = true;

                        bl = new Vector3(currentCharInfo.bottomLeft.x, currentCharInfo.descender, 0);
                        tl = new Vector3(currentCharInfo.bottomLeft.x, currentCharInfo.ascender, 0);

                        //Debug.Log("Start Word Region at [" + currentCharInfo.character + "]");

                        // If Word is one character
                        if (wInfo.characterCount == 1)
                        {
                            isBeginRegion = false;

                            br = new Vector3(currentCharInfo.topRight.x, currentCharInfo.descender, 0);
                            tr = new Vector3(currentCharInfo.topRight.x, currentCharInfo.ascender, 0);

                            // Transform coordinates to be relative to transform and account min descender and max ascender.
                            bl = rectTransform.TransformPoint(new Vector3(bl.x, minDescender, 0));
                            tl = rectTransform.TransformPoint(new Vector3(tl.x, maxAscender, 0));
                            tr = rectTransform.TransformPoint(new Vector3(tr.x, maxAscender, 0));
                            br = rectTransform.TransformPoint(new Vector3(br.x, minDescender, 0));

                            // Check for Intersection
                            if (PointIntersectRectangle(position, bl, tl, tr, br))
                                return i;

                            //Debug.Log("End Word Region at [" + currentCharInfo.character + "]");
                        }
                    }

                    // Last Character of Word
                    if (isBeginRegion && j == wInfo.characterCount - 1)
                    {
                        isBeginRegion = false;

                        br = new Vector3(currentCharInfo.topRight.x, currentCharInfo.descender, 0);
                        tr = new Vector3(currentCharInfo.topRight.x, currentCharInfo.ascender, 0);

                        // Transform coordinates to be relative to transform and account min descender and max ascender.
                        bl = rectTransform.TransformPoint(new Vector3(bl.x, minDescender, 0));
                        tl = rectTransform.TransformPoint(new Vector3(tl.x, maxAscender, 0));
                        tr = rectTransform.TransformPoint(new Vector3(tr.x, maxAscender, 0));
                        br = rectTransform.TransformPoint(new Vector3(br.x, minDescender, 0));

                        // Check for Intersection
                        if (PointIntersectRectangle(position, bl, tl, tr, br))
                            return i;

                        //Debug.Log("End Word Region at [" + currentCharInfo.character + "]");
                    }
                    // If Word is split on more than one line.
                    else if (isBeginRegion && currentLine != text.textInfo.characterInfo[characterIndex + 1].lineNumber)
                    {
                        isBeginRegion = false;

                        br = new Vector3(currentCharInfo.topRight.x, currentCharInfo.descender, 0);
                        tr = new Vector3(currentCharInfo.topRight.x, currentCharInfo.ascender, 0);

                        // Transform coordinates to be relative to transform and account min descender and max ascender.
                        bl = rectTransform.TransformPoint(new Vector3(bl.x, minDescender, 0));
                        tl = rectTransform.TransformPoint(new Vector3(tl.x, maxAscender, 0));
                        tr = rectTransform.TransformPoint(new Vector3(tr.x, maxAscender, 0));
                        br = rectTransform.TransformPoint(new Vector3(br.x, minDescender, 0));

                        maxAscender = -Mathf.Infinity;
                        minDescender = Mathf.Infinity;

                        // Check for Intersection
                        if (PointIntersectRectangle(position, bl, tl, tr, br))
                            return i;

                        //Debug.Log("End Word Region at [" + currentCharInfo.character + "]");
                    }
                }

                //Debug.Log("Word at Index: " + i + " is located at (" + bl + ", " + tl + ", " + tr + ", " + br + ").");

            }

            return -1;
        }

public static int FindNearestCharacterOnLine(TMP_Text text, Vector3 position, int line, Camera camera, bool visibleOnly)
        {
            RectTransform rectTransform = text.rectTransform;

            // Convert position into Worldspace coordinates
            ScreenPointToWorldPointInRectangle(rectTransform, position, camera, out position);

            int firstCharacter = text.textInfo.lineInfo[line].firstCharacterIndex;
            int lastCharacter = text.textInfo.lineInfo[line].lastCharacterIndex;

            float distanceSqr = Mathf.Infinity;
            int closest = lastCharacter;

            for (int i = firstCharacter; i < lastCharacter; i++)
            {
                // Get current character info.
                TMP_CharacterInfo cInfo = text.textInfo.characterInfo[i];
                if (visibleOnly && !cInfo.isVisible) continue;

                // Get Bottom Left and Top Right position of the current character
                Vector3 bl = rectTransform.TransformPoint(cInfo.bottomLeft);
                Vector3 tl = rectTransform.TransformPoint(new Vector3(cInfo.bottomLeft.x, cInfo.topRight.y, 0));
                Vector3 tr = rectTransform.TransformPoint(cInfo.topRight);
                Vector3 br = rectTransform.TransformPoint(new Vector3(cInfo.topRight.x, cInfo.bottomLeft.y, 0));

                if (PointIntersectRectangle(position, bl, tl, tr, br))
                {
                    closest = i;
                    break;
                }

                // Find the closest corner to position.
                float dbl = DistanceToLine(bl, tl, position);
                float dtl = DistanceToLine(tl, tr, position);
                float dtr = DistanceToLine(tr, br, position);
                float dbr = DistanceToLine(br, bl, position);

                float d = dbl < dtl ? dbl : dtl;
                d = d < dtr ? d : dtr;
                d = d < dbr ? d : dbr;

                if (distanceSqr > d)
                {
                    distanceSqr = d;
                    closest = i;
                }
            }
            return closest;
        }

public static int FindNearestWord(TMP_Text text, Vector3 position, Camera camera)
        {
            RectTransform rectTransform = text.rectTransform;

            float distanceSqr = Mathf.Infinity;
            int closest = 0;

            // Convert position into Worldspace coordinates
            ScreenPointToWorldPointInRectangle(rectTransform, position, camera, out position);

            for (int i = 0; i < text.textInfo.wordCount; i++)
            {
                TMP_WordInfo wInfo = text.textInfo.wordInfo[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 < wInfo.characterCount; j++)
                {
                    int characterIndex = wInfo.firstCharacterIndex + j;
                    TMP_CharacterInfo currentCharInfo = text.textInfo.characterInfo[characterIndex];
                    int currentLine = currentCharInfo.lineNumber;

                    bool isCharacterVisible = currentCharInfo.isVisible;

                    if (isBeginRegion == false && isCharacterVisible)
                    {
                        isBeginRegion = true;

                        bl = rectTransform.TransformPoint(new Vector3(currentCharInfo.bottomLeft.x, currentCharInfo.descender, 0));
                        tl = rectTransform.TransformPoint(new Vector3(currentCharInfo.bottomLeft.x, currentCharInfo.ascender, 0));

                        //Debug.Log("Start Word Region at [" + currentCharInfo.character + "]");

                        // If Word is one character
                        if (wInfo.characterCount == 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
                            if (PointIntersectRectangle(position, bl, tl, tr, br))
                                return i;

                            // Find the closest line segment to position.
                            float dbl = DistanceToLine(bl, tl, position);
                            float dtl = DistanceToLine(tl, tr, position);
                            float dtr = DistanceToLine(tr, br, position);
                            float dbr = DistanceToLine(br, bl, position);

                            float d = dbl < dtl ? dbl : dtl;
                            d = d < dtr ? d : dtr;
                            d = d < dbr ? d : dbr;

                            if (distanceSqr > d)
                            {
                                distanceSqr = d;
                                closest = i;
                            }
                        }
                    }

                    // Last Character of Word
                    if (isBeginRegion && j == wInfo.characterCount - 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
                        if (PointIntersectRectangle(position, bl, tl, tr, br))
                            return i;

                        // Find the closest line segment to position.
                        float dbl = DistanceToLine(bl, tl, position);
                        float dtl = DistanceToLine(tl, tr, position);
                        float dtr = DistanceToLine(tr, br, position);
                        float dbr = DistanceToLine(br, bl, position);

                        float d = dbl < dtl ? dbl : dtl;
                        d = d < dtr ? d : dtr;
                        d = d < dbr ? d : dbr;

                        if (distanceSqr > d)
                        {
                            distanceSqr = d;
                            closest = i;
                        }
                    }
                    // 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));

                        // Check for Intersection
                        if (PointIntersectRectangle(position, bl, tl, tr, br))
                            return i;

                        // Find the closest line segment to position.
                        float dbl = DistanceToLine(bl, tl, position);
                        float dtl = DistanceToLine(tl, tr, position);
                        float dtr = DistanceToLine(tr, br, position);
                        float dbr = DistanceToLine(br, bl, position);

                        float d = dbl < dtl ? dbl : dtl;
                        d = d < dtr ? d : dtr;
                        d = d < dbr ? d : dbr;

                        if (distanceSqr > d)
                        {
                            distanceSqr = d;
                            closest = i;
                        }
                    }
                }

                //Debug.Log("Word at Index: " + i + " is located at (" + bl + ", " + tl + ", " + tr + ", " + br + ").");
            }

            return closest;
        }

public static int FindIntersectingLine(TMP_Text text, Vector3 position, Camera camera)
        {
            RectTransform rectTransform = text.rectTransform;

            int closest = -1;

            // Convert position into Worldspace coordinates
            ScreenPointToWorldPointInRectangle(rectTransform, position, camera, out position);

            for (int i = 0; i < text.textInfo.lineCount; i++)
            {
                TMP_LineInfo lineInfo = text.textInfo.lineInfo[i];

                float ascender = rectTransform.TransformPoint(new Vector3(0, lineInfo.ascender, 0)).y;
                float descender = rectTransform.TransformPoint(new Vector3(0, lineInfo.descender, 0)).y;

                if (ascender > position.y && descender < position.y)
                {
                    //Debug.Log("Position is on line " + i);
                    return i;
                }
            }

            //Debug.Log("Closest line to position is " + closest);
            return closest;
        }

public static bool IsIntersectingRectTransform(RectTransform rectTransform, Vector3 position, Camera camera)
        {
            // Convert position into Worldspace coordinates
            ScreenPointToWorldPointInRectangle(rectTransform, position, camera, out position);

            rectTransform.GetWorldCorners(m_rectWorldCorners);

            if (PointIntersectRectangle(position, m_rectWorldCorners[0], m_rectWorldCorners[1], m_rectWorldCorners[2], m_rectWorldCorners[3]))
            {
                return true;
            }

            return false;
        }

public static int FindIntersectingCharacter(TMP_Text text, Vector3 position, Camera camera, bool visibleOnly)
        {
            RectTransform rectTransform = text.rectTransform;

            // Convert position into Worldspace coordinates
            ScreenPointToWorldPointInRectangle(rectTransform, position, camera, out position);

            for (int i = 0; i < text.textInfo.characterCount; i++)
            {
                // Get current character info.
                TMP_CharacterInfo cInfo = text.textInfo.characterInfo[i];
                if (visibleOnly && !cInfo.isVisible) continue;

                // Get Bottom Left and Top Right position of the current character
                Vector3 bl = rectTransform.TransformPoint(cInfo.bottomLeft);
                Vector3 tl = rectTransform.TransformPoint(new Vector3(cInfo.bottomLeft.x, cInfo.topRight.y, 0));
                Vector3 tr = rectTransform.TransformPoint(cInfo.topRight);
                Vector3 br = rectTransform.TransformPoint(new Vector3(cInfo.topRight.x, cInfo.bottomLeft.y, 0));

                if (PointIntersectRectangle(position, bl, tl, tr, br))
                    return i;

            }
            return -1;
        }

public static int FindNearestCharacter(TMP_Text text, Vector3 position, Camera camera, bool visibleOnly)
        {
            RectTransform rectTransform = text.rectTransform;

            float distanceSqr = Mathf.Infinity;
            int closest = 0;

            // Convert position into Worldspace coordinates
            ScreenPointToWorldPointInRectangle(rectTransform, position, camera, out position);

            for (int i = 0; i < text.textInfo.characterCount; i++)
            {
                // Get current character info.
                TMP_CharacterInfo cInfo = text.textInfo.characterInfo[i];
                if (visibleOnly && !cInfo.isVisible) continue;

                // Get Bottom Left and Top Right position of the current character
                Vector3 bl = rectTransform.TransformPoint(cInfo.bottomLeft);
                Vector3 tl = rectTransform.TransformPoint(new Vector3(cInfo.bottomLeft.x, cInfo.topRight.y, 0));
                Vector3 tr = rectTransform.TransformPoint(cInfo.topRight);
                Vector3 br = rectTransform.TransformPoint(new Vector3(cInfo.topRight.x, cInfo.bottomLeft.y, 0));

                if (PointIntersectRectangle(position, bl, tl, tr, br))
                    return i;

                // Find the closest corner to position.
                float dbl = DistanceToLine(bl, tl, position);
                float dtl = DistanceToLine(tl, tr, position);
                float dtr = DistanceToLine(tr, br, position);
                float dbr = DistanceToLine(br, bl, position);

                float d = dbl < dtl ? dbl : dtl;
                d = d < dtr ? d : dtr;
                d = d < dbr ? d : dbr;

                if (distanceSqr > d)
                {
                    distanceSqr = d;
                    closest = i;
                }
            }

            return closest;
        }

public static int FindNearestLink(TMP_Text text, Vector3 position, Camera camera)
        {
            RectTransform rectTransform = text.rectTransform;

            // Convert position into Worldspace coordinates
            ScreenPointToWorldPointInRectangle(rectTransform, position, camera, out position);

            float distanceSqr = Mathf.Infinity;
            int closest = 0;

            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 link
                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;

                        //Debug.Log("Start Word Region at [" + currentCharInfo.character + "]");

                        bl = rectTransform.TransformPoint(new Vector3(currentCharInfo.bottomLeft.x, currentCharInfo.descender, 0));
                        tl = rectTransform.TransformPoint(new Vector3(currentCharInfo.bottomLeft.x, currentCharInfo.ascender, 0));

                        // If Link 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
                            if (PointIntersectRectangle(position, bl, tl, tr, br))
                                return i;

                            // Find the closest line segment to position.
                            float dbl = DistanceToLine(bl, tl, position); 
                            float dtl = DistanceToLine(tl, tr, position); 
                            float dtr = DistanceToLine(tr, br, position); 
                            float dbr = DistanceToLine(br, bl, position);

                            float d = dbl < dtl ? dbl : dtl;
                            d = d < dtr ? d : dtr;
                            d = d < dbr ? d : dbr;

                            if (distanceSqr > d)
                            {
                                distanceSqr = d;
                                closest = i;
                            }

                        }
                    }

                    // 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));

                        // Check for Intersection
                        if (PointIntersectRectangle(position, bl, tl, tr, br))
                            return i;

                        // Find the closest line segment to position.
                        float dbl = DistanceToLine(bl, tl, position);
                        float dtl = DistanceToLine(tl, tr, position);
                        float dtr = DistanceToLine(tr, br, position);
                        float dbr = DistanceToLine(br, bl, position);

                        float d = dbl < dtl ? dbl : dtl;
                        d = d < dtr ? d : dtr;
                        d = d < dbr ? d : dbr;

                        if (distanceSqr > d)
                        {
                            distanceSqr = d;
                            closest = i;
                        }

                    }
                    // If Link 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));

                        // Check for Intersection
                        if (PointIntersectRectangle(position, bl, tl, tr, br))
                            return i;

                        // Find the closest line segment to position.
                        float dbl = DistanceToLine(bl, tl, position);
                        float dtl = DistanceToLine(tl, tr, position);
                        float dtr = DistanceToLine(tr, br, position);
                        float dbr = DistanceToLine(br, bl, position);

                        float d = dbl < dtl ? dbl : dtl;
                        d = d < dtr ? d : dtr;
                        d = d < dbr ? d : dbr;

                        if (distanceSqr > d)
                        {
                            distanceSqr = d;
                            closest = i;
                        }
                    }
                }

                //Debug.Log("Word at Index: " + i + " is located at (" + bl + ", " + tl + ", " + tr + ", " + br + ").");

            }

            return closest;
        }