/// <summary>
/// 頂点を追加します。
/// </summary>
/// <param name="vertex">頂点。</param>
public void AddVertex(ref VertexPositionNormalColorTexture vertex)
{
vertices[VertexCount++] = vertex;
// AABB を更新。
Vector3.Max(ref box.Max, ref vertex.Position, out box.Max);
Vector3.Min(ref box.Min, ref vertex.Position, out box.Min);
}
void AddMesh(int x, int y, int z, ref Color color, MeshPart source, ChunkVertices destination)
{
foreach (var index in source.Indices)
destination.AddIndex(index);
var vertices = source.Vertices;
for (int i = 0; i < vertices.Length; i++)
{
var sourceVertex = vertices[i];
var vertex = new VertexPositionNormalColorTexture
{
Position = sourceVertex.Position,
Normal = sourceVertex.Normal,
Color = color,
TextureCoordinate = sourceVertex.TextureCoordinate
};
// ブロック位置へ移動。
vertex.Position.X += x;
vertex.Position.Y += y;
vertex.Position.Z += z;
// ブロックの MeshPart はその中心に原点があるため、半ブロック移動。
vertex.Position += blockMeshOffset;
// チャンク メッシュはメッシュの中心位置を原点とするため、半メッシュ移動。
vertex.Position -= meshManager.MeshOffset;
destination.AddVertex(ref vertex);
}
}
public void SetVertices(VertexPositionNormalColorTexture[] vertices, int vertexCount)
{
if (vertices == null) throw new ArgumentNullException("vertices");
if (vertexCount < 0 || vertices.Length < vertexCount) throw new ArgumentOutOfRangeException("vertexCount");
VertexCount = vertexCount;
if (vertexCount != 0)
{
if (vertexBuffer != null && vertexBuffer.VertexCount != vertexCount)
{
vertexBuffer.Dispose();
vertexBuffer = null;
}
if (vertexBuffer == null)
vertexBuffer = new DynamicVertexBuffer(
graphicsDevice, typeof(VertexPositionNormalColorTexture), vertexCount, BufferUsage.WriteOnly);
vertexBuffer.SetData(vertices, 0, vertexCount, SetDataOptions.Discard);
}
else
{
if (vertexBuffer != null)
{
vertexBuffer.Dispose();
vertexBuffer = null;
}
}
}
