/// <summary>
/// Calculates the mesh dimensions for the given string
/// and returns a width and height.
/// </summary>
public static Vector2 GetMeshDimensionsForString(string str, CurvedGeomData CurvedGeomData)
{
tk2dCurvedTextMeshData data = CurvedGeomData.textMeshData;
tk2dFontData _fontInst = CurvedGeomData.fontInst;
float maxWidth = 0.0f;
float cursorX = 0.0f;
float cursorY = 0.0f;
bool ignoreNextCharacter = false;
int target = 0;
for (int i = 0; i < str.Length && target < data.maxChars; ++i)
{
if (ignoreNextCharacter) {
ignoreNextCharacter = false;
continue;
}
int idx = str[i];
if (idx == '\n')
{
maxWidth = Mathf.Max(cursorX, maxWidth);
cursorX = 0.0f;
cursorY -= (_fontInst.lineHeight + data.lineSpacing) * data.scale.y;
continue;
}
else if (data.inlineStyling)
{
if (idx == '^' && i + 1 < str.Length)
{
if (str[i + 1] == '^') {
ignoreNextCharacter = true;
} else {
int cmdLength = 0;
switch (str[i + 1]) {
case 'c': cmdLength = 5; break;
case 'C': cmdLength = 9; break;
case 'g': cmdLength = 9; break;
case 'G': cmdLength = 17; break;
}
i += cmdLength;
continue;
}
}
}
bool inlineHatChar = (idx == '^');
// Get the character from dictionary / array
tk2dFontChar chr;
if (_fontInst.useDictionary)
{
if (!_fontInst.charDict.ContainsKey(idx)) idx = 0;
chr = _fontInst.charDict[idx];
}
else
{
if (idx >= _fontInst.chars.Length) idx = 0; // should be space
chr = _fontInst.chars[idx];
}
if (inlineHatChar) idx = '^';
cursorX += (chr.advance + data.spacing) * data.scale.x;
if (data.kerning && i < str.Length - 1)
{
foreach (var k in _fontInst.kerning)
{
if (k.c0 == str[i] && k.c1 == str[i+1])
{
cursorX += k.amount * data.scale.x;
break;
}
}
}
++target;
}
maxWidth = Mathf.Max(cursorX, maxWidth);
cursorY -= (_fontInst.lineHeight + data.lineSpacing) * data.scale.y;
return new Vector2(maxWidth, cursorY);
}
public static void SetTextMeshIndices(int[] indices, int offset, int vStart, CurvedGeomData CurvedGeomData, int target)
{
tk2dCurvedTextMeshData data = CurvedGeomData.textMeshData;
for (int i = 0; i < data.maxChars; ++i)
{
indices[offset + i * 6 + 0] = vStart + i * 4 + 0;
indices[offset + i * 6 + 1] = vStart + i * 4 + 1;
indices[offset + i * 6 + 2] = vStart + i * 4 + 3;
indices[offset + i * 6 + 3] = vStart + i * 4 + 2;
indices[offset + i * 6 + 4] = vStart + i * 4 + 0;
indices[offset + i * 6 + 5] = vStart + i * 4 + 3;
}
}
public static int SetTextMeshGeom(Vector3[] pos, Vector2[] uv, Vector2[] uv2, Color32[] color, int offset, CurvedGeomData CurvedGeomData, float curveWidth = 0f, float curveStrength = 1f)
{
tk2dCurvedTextMeshData data = CurvedGeomData.textMeshData;
tk2dFontData fontInst = CurvedGeomData.fontInst;
string formattedText = CurvedGeomData.formattedText;
meshTopColor = new Color32(255, 255, 255, 255);
meshBottomColor = new Color32(255, 255, 255, 255);
meshGradientTexU = (float)data.textureGradient / (float)((fontInst.gradientCount > 0) ? fontInst.gradientCount : 1);
curGradientCount = fontInst.gradientCount;
Vector2 dims = GetMeshDimensionsForString(CurvedGeomData.formattedText, CurvedGeomData);
float offsetY = GetYAnchorForHeight(dims.y, CurvedGeomData);
float cursorX = 0.0f;
float cursorY = 0.0f;
int target = 0;
int alignStartTarget = 0;
for (int i = 0; i < formattedText.Length && target < data.maxChars; ++i)
{
int idx = formattedText[i];
tk2dFontChar chr;
bool inlineHatChar = (idx == '^');
if (fontInst.useDictionary)
{
if (!fontInst.charDict.ContainsKey(idx)) idx = 0;
chr = fontInst.charDict[idx];
}
else
{
if (idx >= fontInst.chars.Length) idx = 0; // should be space
chr = fontInst.chars[idx];
}
if (inlineHatChar) idx = '^';
if (idx == '\n')
{
float lineWidth = cursorX;
int alignEndTarget = target; // this is one after the last filled character
if (alignStartTarget != target)
{
float xOffset = GetXAnchorForWidth(lineWidth, CurvedGeomData);
PostAlignTextData(pos, offset, alignStartTarget, alignEndTarget, xOffset);
}
alignStartTarget = target;
cursorX = 0.0f;
cursorY -= (fontInst.lineHeight + data.lineSpacing) * data.scale.y;
continue;
}
else if (data.inlineStyling)
{
if (idx == '^')
{
if (i + 1 < formattedText.Length && formattedText[i + 1] == '^') {
++i;
} else {
i += HandleStyleCommand(formattedText.Substring(i + 1));
continue;
}
}
}
pos[offset + target * 4 + 0] = new Vector3(cursorX + chr.p0.x * data.scale.x, offsetY + cursorY + chr.p0.y * data.scale.y, 0);
pos[offset + target * 4 + 1] = new Vector3(cursorX + chr.p1.x * data.scale.x, offsetY + cursorY + chr.p0.y * data.scale.y, 0);
pos[offset + target * 4 + 2] = new Vector3(cursorX + chr.p0.x * data.scale.x, offsetY + cursorY + chr.p1.y * data.scale.y, 0);
pos[offset + target * 4 + 3] = new Vector3(cursorX + chr.p1.x * data.scale.x, offsetY + cursorY + chr.p1.y * data.scale.y, 0);
if (chr.flipped)
{
uv[offset + target * 4 + 0] = new Vector2(chr.uv1.x, chr.uv1.y);
uv[offset + target * 4 + 1] = new Vector2(chr.uv1.x, chr.uv0.y);
uv[offset + target * 4 + 2] = new Vector2(chr.uv0.x, chr.uv1.y);
uv[offset + target * 4 + 3] = new Vector2(chr.uv0.x, chr.uv0.y);
}
else
{
uv[offset + target * 4 + 0] = new Vector2(chr.uv0.x, chr.uv0.y);
uv[offset + target * 4 + 1] = new Vector2(chr.uv1.x, chr.uv0.y);
uv[offset + target * 4 + 2] = new Vector2(chr.uv0.x, chr.uv1.y);
uv[offset + target * 4 + 3] = new Vector2(chr.uv1.x, chr.uv1.y);
}
if (fontInst.textureGradients)
{
uv2[offset + target * 4 + 0] = chr.gradientUv[0] + new Vector2(meshGradientTexU, 0);
uv2[offset + target * 4 + 1] = chr.gradientUv[1] + new Vector2(meshGradientTexU, 0);
uv2[offset + target * 4 + 2] = chr.gradientUv[2] + new Vector2(meshGradientTexU, 0);
uv2[offset + target * 4 + 3] = chr.gradientUv[3] + new Vector2(meshGradientTexU, 0);
}
if (fontInst.isPacked)
{
Color32 c = channelSelectColors[chr.channel];
color[offset + target * 4 + 0] = c;
color[offset + target * 4 + 1] = c;
color[offset + target * 4 + 2] = c;
color[offset + target * 4 + 3] = c;
}
else {
color[offset + target * 4 + 0] = meshTopColor;
color[offset + target * 4 + 1] = meshTopColor;
color[offset + target * 4 + 2] = meshBottomColor;
color[offset + target * 4 + 3] = meshBottomColor;
}
cursorX += (chr.advance + data.spacing) * data.scale.x;
if (data.kerning && i < formattedText.Length - 1)
{
foreach (var k in fontInst.kerning)
{
if (k.c0 == formattedText[i] && k.c1 == formattedText[i+1])
{
cursorX += k.amount * data.scale.x;
break;
}
}
}
++target;
}
if (alignStartTarget != target)
{
float lineWidth = cursorX;
int alignEndTarget = target;
float xOffset = GetXAnchorForWidth(lineWidth, CurvedGeomData);
PostAlignTextData(pos, offset, alignStartTarget, alignEndTarget, xOffset);
if(curveWidth != 0)
ApplyTextCurve(pos, offset, alignStartTarget, alignEndTarget, curveWidth, curveStrength);
}
for (int i = target; i < data.maxChars; ++i)
{
pos[offset + i * 4 + 0] = pos[offset + i * 4 + 1] = pos[offset + i * 4 + 2] = pos[offset + i * 4 + 3] = Vector3.zero;
uv[offset + i * 4 + 0] = uv[offset + i * 4 + 1] = uv[offset + i * 4 + 2] = uv[offset + i * 4 + 3] = Vector2.zero;
if (fontInst.textureGradients)
{
uv2[offset + i * 4 + 0] = uv2[offset + i * 4 + 1] = uv2[offset + i * 4 + 2] = uv2[offset + i * 4 + 3] = Vector2.zero;
}
if (!fontInst.isPacked)
{
color[offset + i * 4 + 0] = color[offset + i * 4 + 1] = meshTopColor;
color[offset + i * 4 + 2] = color[offset + i * 4 + 3] = meshBottomColor;
}
else
{
color[offset + i * 4 + 0] = color[offset + i * 4 + 1] = color[offset + i * 4 + 2] = color[offset + i * 4 + 3] = Color.clear;
}
}
return target;
}
public static float GetYAnchorForHeight(float textHeight, CurvedGeomData CurvedGeomData)
{
tk2dCurvedTextMeshData data = CurvedGeomData.textMeshData;
tk2dFontData _fontInst = CurvedGeomData.fontInst;
int heightAnchor = (int)data.anchor / 3;
float lineHeight = (_fontInst.lineHeight + data.lineSpacing) * data.scale.y;
switch (heightAnchor)
{
case 0: return -lineHeight;
case 1:
{
float y = -textHeight / 2.0f - lineHeight;
if (_fontInst.version >= 2)
{
float ty = _fontInst.texelSize.y * data.scale.y;
return Mathf.Floor(y / ty) * ty;
}
else return y;
}
case 2: return -textHeight - lineHeight;
}
return -lineHeight;
}
public static float GetXAnchorForWidth(float lineWidth, CurvedGeomData CurvedGeomData)
{
tk2dCurvedTextMeshData data = CurvedGeomData.textMeshData;
tk2dFontData _fontInst = CurvedGeomData.fontInst;
int widthAnchor = (int)data.anchor % 3;
switch (widthAnchor)
{
case 0: return 0.0f; // left
case 1: // center
{
float x = -lineWidth / 2.0f;
if (_fontInst.version >= 2)
{
float tx = _fontInst.texelSize.x * data.scale.x;
return Mathf.Floor(x / tx) * tx;
}
return x;
}
case 2: return -lineWidth; // right
}
return 0.0f;
}
public static void GetTextMeshGeomDesc(out int numVertices, out int numIndices, CurvedGeomData CurvedGeomData)
{
tk2dCurvedTextMeshData data = CurvedGeomData.textMeshData;
numVertices = data.maxChars * 4;
numIndices = data.maxChars * 6;
}