/// <summary>
/// Adds a mesh to the current batch, or to a new one if the current one does not support
/// it. Whenever the batch changes, <code>onBatchComplete</code> is called for the previous
/// one.
/// </summary>
/// <param name="mesh">The mesh to add to the current(or new) batch.</param>
/// <param name="state">The render state from which to take the current settings for alpha,
/// modelview matrix, and blend mode.</param>
/// <param name="subset">The subset of the mesh you want to add, or<code>null</code> for
/// the complete mesh.</param>
/// <param name="ignoreTransformations">When enabled, the mesh's vertices will be added
/// without transforming them in any way (no matter the value of the
/// state's <code>modelviewMatrix</code></param>
public void AddMesh(Mesh mesh, RenderState state, MeshSubset subset = null,
bool ignoreTransformations = false)
{
if (subset == null)
{
subset = SMeshSubset;
subset.VertexId = subset.IndexId = 0;
subset.NumVertices = mesh.NumVertices;
subset.NumIndices = mesh.NumIndices;
}
else
{
if (subset.NumVertices < 0)
{
subset.NumVertices = mesh.NumVertices - subset.VertexId;
}
if (subset.NumIndices < 0)
{
subset.NumIndices = mesh.NumIndices - subset.IndexId;
}
}
if (subset.NumVertices > 0)
{
if (_currentBatch == null || !_currentBatch.CanAddMesh(mesh, subset.NumVertices))
{
FinishBatch();
_currentStyleType = mesh.Style.Type;
_currentBatch = _batchPool.GetBatch(_currentStyleType);
_currentBatch.BlendMode = state != null ? state.BlendMode : mesh.BlendMode;
_cacheToken.SetTo(_batches.Count);
_batches.Add(_currentBatch);
}
Matrix2D matrix = state != null ? state._modelviewMatrix : null;
float alpha = state != null ? state.Alpha : 1.0f;
_currentBatch.AddMesh(mesh, matrix, alpha, subset, ignoreTransformations);
_cacheToken.VertexID += subset.NumVertices;
_cacheToken.IndexID += subset.NumIndices;
}
}
/** Draws text into a QuadBatch. */
public void FillMeshBatch(MeshBatch meshBatch, float width, float height, string text,
TextFormat format, TextOptions options = null)
{
List <CharLocation> charLocations = ArrangeChars(
width, height, text, format, options);
int numChars = charLocations.Count;
_helperImage.Color = format.Color;
for (int i = 0; i < numChars; ++i)
{
CharLocation charLocation = charLocations[i];
_helperImage.Texture = charLocation.Char.Texture;
_helperImage.ReadjustSize();
_helperImage.X = charLocation.X;
_helperImage.Y = charLocation.Y;
_helperImage.Scale = charLocation.Scale;
meshBatch.AddMesh(_helperImage);
}
}
