// ------------------------------------------------------------------
// Desc:
// ------------------------------------------------------------------
protected override Vector3[] GetVertices(Space _space)
{
// TODO: only return the rotated bounding box of the sprite font
int visibleVertexCount = text_.Length * 4;
exList <Vector3> vertices = exList <Vector3> .GetTempList();
vertices.AddRange(visibleVertexCount);
SpriteFontBuilder.BuildText(this, _space, vertices, 0);
return(vertices.ToArray());
}
/*// ------------------------------------------------------------------
* // Desc:
* // ------------------------------------------------------------------
*
* protected override Vector3[] GetVertices (Space _space) {
* // TODO: only return the rotated bounding box of the sprite font
* int visibleVertexCount = text_.Length * 4;
* exList<Vector3> vertices = exList<Vector3>.GetTempList();
* vertices.AddRange(visibleVertexCount);
* Matrix4x4 mat = _space == Space.World ? cachedWorldMatrix : Matrix4x4.identity;
* BuildText(vertices, 0, ref mat);
* return vertices.ToArray();
* }*/
// ------------------------------------------------------------------
// Desc:
// ------------------------------------------------------------------
protected override void UpdateVertexAndIndexCount()
{
SpriteFontBuilder.GetVertexAndIndexCount(text_, out vertexCount_, out indexCount_);
}
// ------------------------------------------------------------------
// Desc:
// ------------------------------------------------------------------
internal override exUpdateFlags UpdateBuffers(exList <Vector3> _vertices, exList <Vector2> _uvs, exList <Color32> _colors32, exList <int> _indices)
{
return(SpriteFontBuilder.UpdateBuffers(this, Space.Self, 1.0f, _vertices, _uvs, _colors32, _indices, 0, 0));
}
// ------------------------------------------------------------------
// Desc:
// ------------------------------------------------------------------
internal override exUpdateFlags UpdateBuffers(exList <Vector3> _vertices,
exList <Vector2> _uvs,
exList <Color32> _colors32,
exList <int> _indices)
{
if (font_.isValid == false)
{
var retval = exUpdateFlags.None;
bool updateIndex = (updateFlags & (exUpdateFlags.Index | exUpdateFlags.Text)) != 0 && _indices != null;
if (updateIndex)
{
// ensure index buffer in vertex range
int indexBufferEnd = indexBufferIndex + indexCount - 5;
for (int i = indexBufferIndex, v = vertexBufferIndex; i < indexBufferEnd; i += 6, v += 4)
{
_indices.buffer[i] = v;
_indices.buffer[i + 1] = v + 1;
_indices.buffer[i + 2] = v + 2;
_indices.buffer[i + 3] = v + 2;
_indices.buffer[i + 4] = v + 3;
_indices.buffer[i + 5] = v;
}
updateFlags &= ~exUpdateFlags.Index;
retval |= exUpdateFlags.Index;
}
bool updateVertex = (updateFlags & exUpdateFlags.Text) != 0;
if (updateVertex)
{
Vector3 anyPoint = _vertices.buffer.Length > 0 ? _vertices.buffer[0] : new Vector3();
for (int i = 0; i < vertexCount_; ++i)
{
_vertices.buffer[vertexBufferIndex + i] = anyPoint;
}
updateFlags &= ~exUpdateFlags.Text;
retval |= exUpdateFlags.Vertex;
}
return(retval);
}
bool transparentDirty = (updateFlags & exUpdateFlags.Transparent) != 0;
if (transparentDirty)
{
updateFlags &= ~exUpdateFlags.Transparent;
if (transparent_)
{
// make vertex invisible
Vector3 anyPoint = _vertices.buffer.Length > 0 ? _vertices.buffer[0] : new Vector3();
for (int i = 0; i < vertexCount_; ++i)
{
_vertices.buffer[vertexBufferIndex + i] = anyPoint;
}
updateFlags &= ~exUpdateFlags.Vertex;
return(updateFlags | exUpdateFlags.Vertex); // 既然不可见，直接让mesh更新各个buffer即可。这里不重设updateFlags，所以变回可见时会正确初始化。
}
else
{
// revert vertex
updateFlags |= exUpdateFlags.Vertex;
}
}
else if (transparent_)
{
return(exUpdateFlags.None);
}
return(SpriteFontBuilder.UpdateBuffers(this, Space.World, layer_.alpha, _vertices, _uvs,
_colors32, _indices, vertexBufferIndex, indexBufferIndex));
}
