public void ModifyVertices(List <UIVertex> verts)
{
Text text = GetComponent <Text> ();
if (text == null)
{
SuperDebug.LogWarning("LetterSpacing: Missing Text component");
return;
}
string[] lines = text.text.Split('\n');
Vector3 pos;
float letterOffset = spacing * (float)text.fontSize / 100f;
float alignmentFactor = 0;
int glyphIdx = 0;
switch (text.alignment)
{
case TextAnchor.LowerLeft:
case TextAnchor.MiddleLeft:
case TextAnchor.UpperLeft:
alignmentFactor = 0f;
break;
case TextAnchor.LowerCenter:
case TextAnchor.MiddleCenter:
case TextAnchor.UpperCenter:
alignmentFactor = 0.5f;
break;
case TextAnchor.LowerRight:
case TextAnchor.MiddleRight:
case TextAnchor.UpperRight:
alignmentFactor = 1f;
break;
}
for (int lineIdx = 0; lineIdx < lines.Length; lineIdx++)
{
string line = lines [lineIdx];
float lineOffset = (line.Length - 1) * letterOffset * alignmentFactor;
for (int charIdx = 0; charIdx < line.Length; charIdx++)
{
int idx1 = glyphIdx * 6 + 0;
int idx2 = glyphIdx * 6 + 1;
int idx3 = glyphIdx * 6 + 2;
int idx4 = glyphIdx * 6 + 3;
int idx5 = glyphIdx * 6 + 4;
int idx6 = glyphIdx * 6 + 5;
// Check for truncated text (doesn't generate verts for all characters)
if (idx4 > verts.Count - 1)
{
return;
}
UIVertex vert1 = verts [idx1];
UIVertex vert2 = verts [idx2];
UIVertex vert3 = verts [idx3];
UIVertex vert4 = verts [idx4];
UIVertex vert5 = verts [idx5];
UIVertex vert6 = verts [idx6];
pos = Vector3.right * (letterOffset * charIdx - lineOffset);
vert1.position += pos;
vert2.position += pos;
vert3.position += pos;
vert4.position += pos;
vert5.position += pos;
vert6.position += pos;
verts [idx1] = vert1;
verts [idx2] = vert2;
verts [idx3] = vert3;
verts [idx4] = vert4;
verts [idx5] = vert5;
verts [idx6] = vert6;
glyphIdx++;
}
// Offset for carriage return character that still generates verts
glyphIdx++;
}
}