public void MeshRects(int level, GraphicsDevice device)
{
var data = MeshRectData(level);
if (data == null)
{
return;
}
if (Drawgroups[level - 2] != null && Drawgroups[level - 2].NumPrimitives > 0)
{
Drawgroups[level - 2].VertexBuffer.Dispose();
Drawgroups[level - 2].IndexBuffer.Dispose();
Drawgroups[level - 2].AdvVertexBuffer?.Dispose();
Drawgroups[level - 2].AdvIndexBuffer?.Dispose();
}
var result = new RoofDrawGroup();
if (data.NumPrimitives > 0)
{
result.VertexBuffer = new VertexBuffer(device, typeof(TerrainParallaxVertex), data.Vertices.Length, BufferUsage.None);
if (data.Vertices.Length > 0)
{
result.VertexBuffer.SetData(data.Vertices);
}
result.IndexBuffer = new IndexBuffer(device, IndexElementSize.ThirtyTwoBits, sizeof(int) * data.Indices.Length, BufferUsage.None);
if (data.Vertices.Length > 0)
{
result.IndexBuffer.SetData(data.Indices);
}
}
if (data.AdvNumPrimitives > 0)
{
result.AdvVertexBuffer = new VertexBuffer(device, typeof(TerrainParallaxVertex), data.AdvVertices.Length, BufferUsage.None);
if (data.AdvVertices.Length > 0)
{
result.AdvVertexBuffer.SetData(data.AdvVertices);
}
result.AdvIndexBuffer = new IndexBuffer(device, IndexElementSize.ThirtyTwoBits, sizeof(int) * data.AdvIndices.Length, BufferUsage.None);
if (data.AdvVertices.Length > 0)
{
result.AdvIndexBuffer.SetData(data.AdvIndices);
}
}
result.NumPrimitives = data.NumPrimitives;
result.AdvNumPrimitives = data.AdvNumPrimitives;
Drawgroups[level - 2] = result;
}
public void MeshRects(int level, GraphicsDevice device)
{
var data = MeshRectData(level);
if (data == null)
{
return;
}
var Geom = data.Item1;
var Indexes = data.Item2;
var numPrimitives = data.Item3;
if (Drawgroups[level - 2] != null && Drawgroups[level - 2].NumPrimitives > 0)
{
Drawgroups[level - 2].VertexBuffer.Dispose();
Drawgroups[level - 2].IndexBuffer.Dispose();
}
var result = new RoofDrawGroup();
if (numPrimitives > 0)
{
result.VertexBuffer = new VertexBuffer(device, typeof(TerrainVertex), Geom.Length, BufferUsage.None);
if (Geom.Length > 0)
{
result.VertexBuffer.SetData(Geom);
}
result.IndexBuffer = new IndexBuffer(device, IndexElementSize.ThirtyTwoBits, sizeof(int) * Indexes.Length, BufferUsage.None);
if (Geom.Length > 0)
{
result.IndexBuffer.SetData(Indexes);
}
}
result.NumPrimitives = numPrimitives;
Drawgroups[level - 2] = result;
}
public void MeshRects(int level, GraphicsDevice device)
{
var rects = RoofRects[level - 2];
if (rects == null)
{
return;
}
if (Drawgroups[level - 2] != null && Drawgroups[level - 2].NumPrimitives > 0)
{
Drawgroups[level - 2].VertexBuffer.Dispose();
Drawgroups[level - 2].IndexBuffer.Dispose();
}
var numQuads = rects.Count * 4; //4 sides for each roof rectangle
TerrainVertex[] Geom = new TerrainVertex[numQuads * 4];
int[] Indexes = new int[numQuads * 6];
var numPrimitives = (numQuads * 2);
int geomOffset = 0;
int indexOffset = 0;
foreach (var rect in rects)
{
//determine roof height of the smallest edge. This height will be used on all edges
var height = Math.Min(rect.x2 - rect.x1, rect.y2 - rect.y1) / 2;
// / \
// / \
// /________\ Draw 4 segments like this. two segments will have the top middle section so short it will not appear.
var heightMod = height / 400f;
var pitch = RoofPitch;
var tl = ToWorldPos(rect.x1, rect.y1, 0, level, pitch) + new Vector3(0, heightMod, 0);
var tr = ToWorldPos(rect.x2, rect.y1, 0, level, pitch) + new Vector3(0, heightMod, 0);
var bl = ToWorldPos(rect.x1, rect.y2, 0, level, pitch) + new Vector3(0, heightMod, 0);
var br = ToWorldPos(rect.x2, rect.y2, 0, level, pitch) + new Vector3(0, heightMod, 0);
//middle vertices. todo: height modifier (not hard)
var m_tl = ToWorldPos(rect.x1 + height, rect.y1 + height, height, level, pitch) + new Vector3(0, heightMod, 0);
var m_tr = ToWorldPos(rect.x2 - height, rect.y1 + height, height, level, pitch) + new Vector3(0, heightMod, 0);
var m_bl = ToWorldPos(rect.x1 + height, rect.y2 - height, height, level, pitch) + new Vector3(0, heightMod, 0);
var m_br = ToWorldPos(rect.x2 - height, rect.y2 - height, height, level, pitch) + new Vector3(0, heightMod, 0);
Color topCol = Color.Lerp(Color.White, new Color(175, 175, 175), pitch);
Color rightCol = Color.White;
Color btmCol = Color.Lerp(Color.White, new Color(200, 200, 200), pitch);
Color leftCol = Color.Lerp(Color.White, new Color(150, 150, 150), pitch);
Vector4 darken = new Vector4(0.8f, 0.8f, 0.8f, 1.0f);
//quad as two tris
for (int j = 0; j < 16; j += 4)
{
Indexes[indexOffset++] = geomOffset + j;
Indexes[indexOffset++] = (geomOffset + 1) + j;
Indexes[indexOffset++] = (geomOffset + 2) + j;
Indexes[indexOffset++] = (geomOffset + 2) + j;
Indexes[indexOffset++] = (geomOffset + 3) + j;
Indexes[indexOffset++] = geomOffset + j;
}
Vector2 texScale = new Vector2(2 / 3f, 1f);
Geom[geomOffset++] = new TerrainVertex(tl, topCol.ToVector4() * darken, new Vector2(tl.X, tl.Z * -1) * texScale, 0);
Geom[geomOffset++] = new TerrainVertex(tr, topCol.ToVector4() * darken, new Vector2(tr.X, tr.Z * -1) * texScale, 0);
Geom[geomOffset++] = new TerrainVertex(m_tr, topCol.ToVector4(), new Vector2(m_tr.X, m_tr.Z * -1) * texScale, 0);
Geom[geomOffset++] = new TerrainVertex(m_tl, topCol.ToVector4(), new Vector2(m_tl.X, m_tl.Z * -1) * texScale, 0);
Geom[geomOffset++] = new TerrainVertex(tr, rightCol.ToVector4() * darken, new Vector2(tr.Z, tr.X) * texScale, 0);
Geom[geomOffset++] = new TerrainVertex(br, rightCol.ToVector4() * darken, new Vector2(br.Z, br.X) * texScale, 0);
Geom[geomOffset++] = new TerrainVertex(m_br, rightCol.ToVector4(), new Vector2(m_br.Z, m_br.X) * texScale, 0);
Geom[geomOffset++] = new TerrainVertex(m_tr, rightCol.ToVector4(), new Vector2(m_tr.Z, m_tr.X) * texScale, 0);
Geom[geomOffset++] = new TerrainVertex(br, btmCol.ToVector4() * darken, new Vector2(br.X, br.Z) * texScale, 0);
Geom[geomOffset++] = new TerrainVertex(bl, btmCol.ToVector4() * darken, new Vector2(bl.X, bl.Z) * texScale, 0);
Geom[geomOffset++] = new TerrainVertex(m_bl, btmCol.ToVector4(), new Vector2(m_bl.X, m_bl.Z) * texScale, 0);
Geom[geomOffset++] = new TerrainVertex(m_br, btmCol.ToVector4(), new Vector2(m_br.X, m_br.Z) * texScale, 0);
Geom[geomOffset++] = new TerrainVertex(bl, leftCol.ToVector4() * darken, new Vector2(bl.Z, bl.X * -1) * texScale, 0);
Geom[geomOffset++] = new TerrainVertex(tl, leftCol.ToVector4() * darken, new Vector2(tl.Z, tl.X * -1) * texScale, 0);
Geom[geomOffset++] = new TerrainVertex(m_tl, leftCol.ToVector4(), new Vector2(m_tl.Z, m_tl.X * -1) * texScale, 0);
Geom[geomOffset++] = new TerrainVertex(m_bl, leftCol.ToVector4(), new Vector2(m_bl.Z, m_bl.X * -1) * texScale, 0);
}
var result = new RoofDrawGroup();
if (numPrimitives > 0)
{
result.VertexBuffer = new VertexBuffer(device, typeof(TerrainVertex), Geom.Length, BufferUsage.None);
if (Geom.Length > 0)
{
result.VertexBuffer.SetData(Geom);
}
result.IndexBuffer = new IndexBuffer(device, IndexElementSize.ThirtyTwoBits, sizeof(int) * Indexes.Length, BufferUsage.None);
if (Geom.Length > 0)
{
result.IndexBuffer.SetData(Indexes);
}
}
result.NumPrimitives = numPrimitives;
Drawgroups[level - 2] = result;
}