public void Draw(OpenGL gl, Skeleton skeleton)
{
if (skeleton == null)
{
return;
}
var drawOrder = skeleton.DrawOrder;
var drawOrderItems = skeleton.DrawOrder.Items;
float skeletonR = skeleton.R, skeletonG = skeleton.G, skeletonB = skeleton.B, skeletonA = skeleton.A;
for (int i = 0, n = drawOrder.Count; i < n; i++)
{
float[] vertices = this.vertices;
Slot slot = drawOrderItems[i];
Attachment attachment = slot.Attachment;
if (attachment is RegionAttachment)
{
RegionAttachment regionAttachment = (RegionAttachment)attachment;
MeshItem item = batcher.NextItem(4, 6);
item.triangles = quadTriangles;
VertexPositionColorTexture[] itemVertices = item.vertices;
AtlasRegion region = (AtlasRegion)regionAttachment.RendererObject;
item.texture = (uint)region.page.rendererObject;
Color color;
float a = skeletonA * slot.A * regionAttachment.A;
if (premultipliedAlpha)
{
color = new Color(
skeletonR * slot.R * regionAttachment.R * a,
skeletonG * slot.G * regionAttachment.G * a,
skeletonB * slot.B * regionAttachment.B * a, a);
}
else
{
color = new Color(
skeletonR * slot.R * regionAttachment.R,
skeletonG * slot.G * regionAttachment.G,
skeletonB * slot.B * regionAttachment.B, a);
}
itemVertices[TL].color = color;
itemVertices[BL].color = color;
itemVertices[BR].color = color;
itemVertices[TR].color = color;
regionAttachment.ComputeWorldVertices(slot.Bone, vertices);
itemVertices[TL].position = new Vector2(vertices[RegionAttachment.X1], vertices[RegionAttachment.Y1]);
itemVertices[BL].position = new Vector2(vertices[RegionAttachment.X2], vertices[RegionAttachment.Y2]);
itemVertices[BR].position = new Vector2(vertices[RegionAttachment.X3], vertices[RegionAttachment.Y3]);
itemVertices[TR].position = new Vector2(vertices[RegionAttachment.X4], vertices[RegionAttachment.Y4]);
float[] uvs = regionAttachment.UVs;
itemVertices[TL].textureCoordinate = new Vector2(uvs[RegionAttachment.X1], uvs[RegionAttachment.Y1]);
itemVertices[BL].textureCoordinate = new Vector2(uvs[RegionAttachment.X2], uvs[RegionAttachment.Y2]);
itemVertices[BR].textureCoordinate = new Vector2(uvs[RegionAttachment.X3], uvs[RegionAttachment.Y3]);
itemVertices[TR].textureCoordinate = new Vector2(uvs[RegionAttachment.X4], uvs[RegionAttachment.Y4]);
}
else if (attachment is MeshAttachment)
{
MeshAttachment mesh = (MeshAttachment)attachment;
int vertexCount = mesh.WorldVerticesLength;
if (vertices.Length < vertexCount)
{
vertices = new float[vertexCount];
}
mesh.ComputeWorldVertices(slot, vertices);
int[] triangles = mesh.Triangles;
MeshItem item = batcher.NextItem(vertexCount, triangles.Length);
item.triangles = triangles;
AtlasRegion region = (AtlasRegion)mesh.RendererObject;
item.texture = (uint)region.page.rendererObject;
Color color;
float a = skeletonA * slot.A * mesh.A;
if (premultipliedAlpha)
{
color = new Color(
skeletonR * slot.R * mesh.R * a,
skeletonG * slot.G * mesh.G * a,
skeletonB * slot.B * mesh.B * a, a);
}
else
{
color = new Color(
skeletonR * slot.R * mesh.R,
skeletonG * slot.G * mesh.G,
skeletonB * slot.B * mesh.B, a);
}
float[] uvs = mesh.UVs;
VertexPositionColorTexture[] itemVertices = item.vertices;
for (int ii = 0, v = 0; v < vertexCount; ii++, v += 2)
{
itemVertices[ii].color = color;
itemVertices[ii].position = new Vector2(vertices[v], vertices[v + 1]);
itemVertices[ii].textureCoordinate = new Vector2(uvs[v], uvs[v + 1]);
}
}
}
batcher.Draw(gl);
}
