private Mesh GenerateSideMesh(Table.Table table)
{
var sideMesh = new Mesh("Side");
var vVertex = DragPoint.GetRgVertex <RenderVertex2D, CatmullCurve2DCatmullCurveFactory>(_data.DragPoints);
var rgTexCoord = DragPoint.GetTextureCoords(_data.DragPoints, vVertex);
var numVertices = vVertex.Length;
var rgNormal = new Vertex2D[numVertices];
for (var i = 0; i < numVertices; i++)
{
var pv1 = vVertex[i];
var pv2 = vVertex[i < numVertices - 1 ? i + 1 : 0];
var dx = pv1.X - pv2.X;
var dy = pv1.Y - pv2.Y;
if (dx != 0.0f || dy != 0.0f)
{
var invLen = 1.0f / MathF.Sqrt(dx * dx + dy * dy);
rgNormal[i] = new Vertex2D {
X = dy * invLen, Y = dx * invLen
};
}
else
{
rgNormal[i] = new Vertex2D {
X = 0.0f, Y = 0.0f
};
}
}
var bottom = _data.HeightBottom * table.GetScaleZ() + table.TableHeight;
var top = _data.HeightTop * table.GetScaleZ() + table.TableHeight;
var offset = 0;
// Render side
sideMesh.Vertices = new Vertex3DNoTex2[numVertices * 4];
for (var i = 0; i < numVertices; i++)
{
var pv1 = vVertex[i];
var pv2 = vVertex[i < numVertices - 1 ? i + 1 : 0];
var a = i == 0 ? numVertices - 1 : i - 1;
var c = i < numVertices - 1 ? i + 1 : 0;
var vNormal = new [] { new Vertex2D(), new Vertex2D() };
if (pv1.Smooth)
{
vNormal[0].X = (rgNormal[a].X + rgNormal[i].X) * 0.5f;
vNormal[0].Y = (rgNormal[a].Y + rgNormal[i].Y) * 0.5f;
}
else
{
vNormal[0].X = rgNormal[i].X;
vNormal[0].Y = rgNormal[i].Y;
}
if (pv2.Smooth)
{
vNormal[1].X = (rgNormal[i].X + rgNormal[c].X) * 0.5f;
vNormal[1].Y = (rgNormal[i].Y + rgNormal[c].Y) * 0.5f;
}
else
{
vNormal[1].X = rgNormal[i].X;
vNormal[1].Y = rgNormal[i].Y;
}
vNormal[0].Normalize();
vNormal[1].Normalize();
sideMesh.Vertices[offset] = new Vertex3DNoTex2();
sideMesh.Vertices[offset + 1] = new Vertex3DNoTex2();
sideMesh.Vertices[offset + 2] = new Vertex3DNoTex2();
sideMesh.Vertices[offset + 3] = new Vertex3DNoTex2();
sideMesh.Vertices[offset].X = pv1.X;
sideMesh.Vertices[offset].Y = pv1.Y;
sideMesh.Vertices[offset].Z = bottom;
sideMesh.Vertices[offset + 1].X = pv1.X;
sideMesh.Vertices[offset + 1].Y = pv1.Y;
sideMesh.Vertices[offset + 1].Z = top;
sideMesh.Vertices[offset + 2].X = pv2.X;
sideMesh.Vertices[offset + 2].Y = pv2.Y;
sideMesh.Vertices[offset + 2].Z = top;
sideMesh.Vertices[offset + 3].X = pv2.X;
sideMesh.Vertices[offset + 3].Y = pv2.Y;
sideMesh.Vertices[offset + 3].Z = bottom;
if (_data.SideImage != null)
{
sideMesh.Vertices[offset].Tu = rgTexCoord[i];
sideMesh.Vertices[offset].Tv = 1.0f;
sideMesh.Vertices[offset + 1].Tu = rgTexCoord[i];
sideMesh.Vertices[offset + 1].Tv = 0f;
sideMesh.Vertices[offset + 2].Tu = rgTexCoord[c];
sideMesh.Vertices[offset + 2].Tv = 0f;
sideMesh.Vertices[offset + 3].Tu = rgTexCoord[c];
sideMesh.Vertices[offset + 3].Tv = 1.0f;
}
sideMesh.Vertices[offset].Nx = vNormal[0].X;
sideMesh.Vertices[offset].Ny = -vNormal[0].Y;
sideMesh.Vertices[offset].Nz = 0f;
sideMesh.Vertices[offset + 1].Nx = vNormal[0].X;
sideMesh.Vertices[offset + 1].Ny = -vNormal[0].Y;
sideMesh.Vertices[offset + 1].Nz = 0f;
sideMesh.Vertices[offset + 2].Nx = vNormal[1].X;
sideMesh.Vertices[offset + 2].Ny = -vNormal[1].Y;
sideMesh.Vertices[offset + 2].Nz = 0f;
sideMesh.Vertices[offset + 3].Nx = vNormal[1].X;
sideMesh.Vertices[offset + 3].Ny = -vNormal[1].Y;
sideMesh.Vertices[offset + 3].Nz = 0f;
offset += 4;
}
// prepare index buffer for sides
var offset2 = 0;
sideMesh.Indices = new int[numVertices * 6];
for (var i = 0; i < numVertices; i++)
{
sideMesh.Indices[i * 6] = offset2;
sideMesh.Indices[i * 6 + 1] = offset2 + 1;
sideMesh.Indices[i * 6 + 2] = offset2 + 2;
sideMesh.Indices[i * 6 + 3] = offset2;
sideMesh.Indices[i * 6 + 4] = offset2 + 2;
sideMesh.Indices[i * 6 + 5] = offset2 + 3;
offset2 += 4;
}
return(sideMesh);
}
private Dictionary <string, Mesh> GenerateMeshes(Table.Table table)
{
var meshes = new Dictionary <string, Mesh>();
var topMesh = new Mesh("Top");
var sideMesh = new Mesh("Side");
var vVertex = DragPoint.GetRgVertex <RenderVertex2D, CatmullCurve2DCatmullCurveFactory>(_data.DragPoints);
var rgTexCoord = DragPoint.GetTextureCoords(_data.DragPoints, vVertex);
var numVertices = vVertex.Length;
var rgNormal = new Vertex2D[numVertices];
for (var i = 0; i < numVertices; i++)
{
var pv1 = vVertex[i];
var pv2 = vVertex[i < numVertices - 1 ? i + 1 : 0];
var dx = pv1.X - pv2.X;
var dy = pv1.Y - pv2.Y;
var invLen = 1.0f / MathF.Sqrt(dx * dx + dy * dy);
rgNormal[i] = new Vertex2D {
X = dy * invLen, Y = dx * invLen
};
}
var bottom = _data.HeightBottom * table.GetScaleZ() + table.TableHeight;
var top = _data.HeightTop * table.GetScaleZ() + table.TableHeight;
var offset = 0;
// Render side
sideMesh.Vertices = new Vertex3DNoTex2[numVertices * 4];
for (var i = 0; i < numVertices; i++)
{
var pv1 = vVertex[i];
var pv2 = vVertex[i < numVertices - 1 ? i + 1 : 0];
var a = i == 0 ? numVertices - 1 : i - 1;
var c = i < numVertices - 1 ? i + 1 : 0;
var vNormal = new [] { new Vertex2D(), new Vertex2D() };
if (pv1.Smooth)
{
vNormal[0].X = (rgNormal[a].X + rgNormal[i].X) * 0.5f;
vNormal[0].Y = (rgNormal[a].Y + rgNormal[i].Y) * 0.5f;
}
else
{
vNormal[0].X = rgNormal[i].X;
vNormal[0].Y = rgNormal[i].Y;
}
if (pv2.Smooth)
{
vNormal[1].X = (rgNormal[i].X + rgNormal[c].X) * 0.5f;
vNormal[1].Y = (rgNormal[i].Y + rgNormal[c].Y) * 0.5f;
}
else
{
vNormal[1].X = rgNormal[i].X;
vNormal[1].Y = rgNormal[i].Y;
}
vNormal[0].Normalize();
vNormal[1].Normalize();
sideMesh.Vertices[offset] = new Vertex3DNoTex2();
sideMesh.Vertices[offset + 1] = new Vertex3DNoTex2();
sideMesh.Vertices[offset + 2] = new Vertex3DNoTex2();
sideMesh.Vertices[offset + 3] = new Vertex3DNoTex2();
sideMesh.Vertices[offset].X = pv1.X;
sideMesh.Vertices[offset].Y = pv1.Y;
sideMesh.Vertices[offset].Z = bottom;
sideMesh.Vertices[offset + 1].X = pv1.X;
sideMesh.Vertices[offset + 1].Y = pv1.Y;
sideMesh.Vertices[offset + 1].Z = top;
sideMesh.Vertices[offset + 2].X = pv2.X;
sideMesh.Vertices[offset + 2].Y = pv2.Y;
sideMesh.Vertices[offset + 2].Z = top;
sideMesh.Vertices[offset + 3].X = pv2.X;
sideMesh.Vertices[offset + 3].Y = pv2.Y;
sideMesh.Vertices[offset + 3].Z = bottom;
if (_data.SideImage != null)
{
sideMesh.Vertices[offset].Tu = rgTexCoord[i];
sideMesh.Vertices[offset].Tv = 1.0f;
sideMesh.Vertices[offset + 1].Tu = rgTexCoord[i];
sideMesh.Vertices[offset + 1].Tv = 0f;
sideMesh.Vertices[offset + 2].Tu = rgTexCoord[c];
sideMesh.Vertices[offset + 2].Tv = 0f;
sideMesh.Vertices[offset + 3].Tu = rgTexCoord[c];
sideMesh.Vertices[offset + 3].Tv = 1.0f;
}
sideMesh.Vertices[offset].Nx = vNormal[0].X;
sideMesh.Vertices[offset].Ny = -vNormal[0].Y;
sideMesh.Vertices[offset].Nz = 0f;
sideMesh.Vertices[offset + 1].Nx = vNormal[0].X;
sideMesh.Vertices[offset + 1].Ny = -vNormal[0].Y;
sideMesh.Vertices[offset + 1].Nz = 0f;
sideMesh.Vertices[offset + 2].Nx = vNormal[1].X;
sideMesh.Vertices[offset + 2].Ny = -vNormal[1].Y;
sideMesh.Vertices[offset + 2].Nz = 0f;
sideMesh.Vertices[offset + 3].Nx = vNormal[1].X;
sideMesh.Vertices[offset + 3].Ny = -vNormal[1].Y;
sideMesh.Vertices[offset + 3].Nz = 0f;
offset += 4;
}
// prepare index buffer for sides
var offset2 = 0;
sideMesh.Indices = new int[numVertices * 6];
for (var i = 0; i < numVertices; i++)
{
sideMesh.Indices[i * 6] = offset2;
sideMesh.Indices[i * 6 + 1] = offset2 + 1;
sideMesh.Indices[i * 6 + 2] = offset2 + 2;
sideMesh.Indices[i * 6 + 3] = offset2;
sideMesh.Indices[i * 6 + 4] = offset2 + 2;
sideMesh.Indices[i * 6 + 5] = offset2 + 3;
offset2 += 4;
}
// draw top
var vPoly = new List <int>(new int[numVertices]);
for (var i = 0; i < numVertices; i++)
{
vPoly[i] = i;
}
topMesh.Indices = Mesh.PolygonToTriangles(vVertex, vPoly);
var numPolys = topMesh.Indices.Length / 3;
if (numPolys == 0)
{
// no polys to render leave vertex buffer undefined
return(meshes);
}
var heightNotDropped = _data.HeightTop * table.GetScaleZ();
var heightDropped = _data.HeightBottom * table.GetScaleZ() + 0.1;
var invTableWidth = 1.0f / table.Width;
var invTableHeight = 1.0f / table.Height;
Vertex3DNoTex2[][] vertsTop = { new Vertex3DNoTex2[numVertices], new Vertex3DNoTex2[numVertices], new Vertex3DNoTex2[numVertices] };
for (var i = 0; i < numVertices; i++)
{
var pv0 = vVertex[i];
vertsTop[0][i] = new Vertex3DNoTex2 {
X = pv0.X,
Y = pv0.Y,
Z = heightNotDropped + table.TableHeight,
Tu = pv0.X * invTableWidth,
Tv = pv0.Y * invTableHeight,
Nx = 0,
Ny = 0,
Nz = 1.0f
};
vertsTop[1][i] = new Vertex3DNoTex2 {
X = pv0.X,
Y = pv0.Y,
Z = (float)heightDropped,
Tu = pv0.X * invTableWidth,
Tv = pv0.Y * invTableHeight,
Nx = 0,
Ny = 0,
Nz = 1.0f
};
vertsTop[2][i] = new Vertex3DNoTex2 {
X = pv0.X,
Y = pv0.Y,
Z = _data.HeightBottom,
Tu = pv0.X * invTableWidth,
Tv = pv0.Y * invTableHeight,
Nx = 0,
Ny = 0,
Nz = -1.0f
};
}
topMesh.Vertices = vertsTop[0];
if (topMesh.Vertices.Length > 0)
{
meshes["Top"] = topMesh;
}
if (System.Math.Abs(top - bottom) > 0.00001f)
{
meshes["Side"] = sideMesh;
}
return(meshes);
}
