public Terrain( Vector3 posCenter,Vector3 size, int cellsX, int cellsZ, GraphicsDevice g, Texture2D tex)
: base()
{
numVertsX = cellsX + 1;
numVertsZ = cellsZ + 1;
numVerts = numVertsX * numVertsZ;
numTriX = cellsX * 2;
numTriZ = cellsZ;
numTris = numTriX * numTriZ;
verts = new VertexPositionNormalTexture[numVerts];
int numIndices = numTris * 3;
indices = new int[numIndices];
float cellSizeX = (float)size.X / cellsX;
float cellSizeZ = (float)size.Z / cellsZ;
texture = tex;
Random r = new Random();
Random r2 = new Random(DateTime.Now.Millisecond);
double targetHeight = 0;
double currentHeight = 0;
// Fill in the vertices
int count = 0;
// distribute height nodes across the map.
// for each vert, calculate the height by summing (node height / distance)
int numHeightNodes = 10;
heightNodes = new Vector3[numHeightNodes];
for (int i = 0; i < numHeightNodes; i++)
{
heightNodes[i] = new Vector3((float)((-size.X / 2) + (r.NextDouble() * size.X)),
(float)(r.NextDouble() * 0),
(float)((-size.Z / 2) + (r.NextDouble() * size.Z)));
}
bool stretchTexture=false;
float textureTileCount=10000;
float worldZPosition = - (size.Z / 2);
for (int z = 0; z < numVertsZ; z++)
{
float worldXPosition = - (size.X / 2);
for (int x = 0; x < numVertsX; x++)
{
if (count % numVertsX == 0)
targetHeight = r2.NextDouble();
//currentHeight += (targetHeight - currentHeight) * .009f;
float height = GetNodeBasedHeight(worldXPosition, worldZPosition);
height = 0;
verts[count].Position = new Vector3(worldXPosition, height, worldZPosition);
verts[count].Normal = Vector3.Zero;
if (stretchTexture)
{
verts[count].TextureCoordinate.X = (float)x / (numVertsX - 1);
verts[count].TextureCoordinate.Y = (float)z / (numVertsZ - 1);
}
else
{
verts[count].TextureCoordinate.X = ((float)x / (numVertsX - 1))*textureTileCount;
verts[count].TextureCoordinate.Y = ((float)z / (numVertsZ - 1))*textureTileCount;
}
count++;
// Advance in x
worldXPosition += cellSizeX;
}
currentHeight = 0;
// Advance in z
worldZPosition += cellSizeZ;
}
int index = 0;
int startVertex = 0;
for (int cellZ = 0; cellZ < cellsZ; cellZ++)
{
for (int cellX = 0; cellX < cellsX; cellX++)
{
indices[index] = startVertex + 0;
indices[index + 1] = startVertex + 1;
indices[index + 2] = startVertex + numVertsX;
SetNormalOfTriangleAtIndices(indices[index], indices[index + 1], indices[index + 2]);
meshIndices.Add(new TriangleVertexIndices(index, index + 1, index + 2));
meshVertices.Add(verts[indices[index]].Position);
meshVertices.Add(verts[indices[index+1]].Position);
meshVertices.Add(verts[indices[index+2]].Position);
index += 3;
indices[index] = startVertex + 1;
indices[index + 1] = startVertex + numVertsX + 1;
indices[index + 2] = startVertex + numVertsX;
SetNormalOfTriangleAtIndices(indices[index], indices[index + 1], indices[index + 2]);
meshIndices.Add(new TriangleVertexIndices(index, index + 1, index + 2));
meshVertices.Add(verts[indices[index]].Position);
meshVertices.Add(verts[indices[index + 1]].Position);
meshVertices.Add(verts[indices[index + 2]].Position);
index += 3;
startVertex++;
}
startVertex++;
}
try
{
Effect = new BasicEffect(g);
mesh = new TriangleMesh();
//mesh.CreateMesh(meshVertices, meshIndices, 2, cellSizeX);
}
catch (Exception E)
{
System.Diagnostics.Debug.WriteLine(E.StackTrace);
}
this.Body = new Body();
Skin = new CollisionSkin(Body);
Body.CollisionSkin = Skin;
Body.ExternalData = this;
float heightf = 0;
try
{
Array2D field = new Array2D(numVertsX, numVertsZ);
int i = 0;
for (int c = 0; c < verts.Length; c++)
{
int x = c / numVertsX;
int z = c % numVertsX;
if (i >= verts.Length)
i = (i % verts.Length)+1;
heightf = verts[i].Position.Y + posCenter.Y; // works
//heightf = verts[i].Position.Y;
i += numVertsX;
field.SetAt(x,z, heightf);
}
// Body.MoveTo(Position, Matrix.Identity);
Heightmap hm = new Heightmap(field,
(-size.X / 2) / (cellsX+0) + cellSizeX/2,
(-size.Z / 2) / (cellsZ + 0) + cellSizeZ/2,
size.X / (cellsX+0),
size.Z / (cellsZ+0));
Skin.AddPrimitive(hm, new MaterialProperties(0.7f, 0.7f, 0.6f));
//Skin.AddPrimitive(GetMesh(), new MaterialProperties(0.7f, 0.7f, 0.6f));
//VertexPositionColor[] wireFrame = Skin.GetLocalSkinWireframe(); // 1200 across before Z changes to from -7.5/-7.35 to -7.35/-7.2
PhysicsSystem.CurrentPhysicsSystem.CollisionSystem.AddCollisionSkin(Skin);
CommonInit(posCenter, new Vector3(0,0,0), null, false, 0);
}
catch(Exception E)
{
System.Diagnostics.Debug.WriteLine(E.StackTrace);
}
}
public Terrain( Vector3 posCenter,Vector3 size, int cellsX, int cellsZ, GraphicsDevice g, Texture2D tex)
: base()
{
numVertsX = cellsX + 1;
numVertsZ = cellsZ + 1;
numVerts = numVertsX * numVertsZ;
numTriX = cellsX * 2;
numTriZ = cellsZ;
numTris = numTriX * numTriZ;
verts = new VertexPositionNormalTexture[numVerts];
int numIndices = numTris * 3;
indices = new int[numIndices];
float cellSizeX = (float)size.X / cellsX;
float cellSizeZ = (float)size.Z / cellsZ;
texture = tex;
Random r = new Random();
Random r2 = new Random(DateTime.Now.Millisecond);
double targetHeight = 0;
double currentHeight = 0;
// Fill in the vertices
int count = 0;
//float edgeHeigh = 0;
//float worldZPosition = posCenter.Z - (size.Z / 2);
float worldZPosition = - (size.Z / 2);
float height;
float stair = 0;
float diff = .5f;
for (int z = 0; z < numVertsZ; z++)
{
//float worldXPosition = posCenter.X - (size.X / 2);
float worldXPosition = - (size.X / 2);
for (int x = 0; x < numVertsX; x++)
{
if (count % numVertsX == 0)
targetHeight = r2.NextDouble();
//targetHeight += Math.Abs(worldZPosition);// +worldXPosition * 1.0f;
currentHeight += (targetHeight - currentHeight) * .009f;
//if(x!=0)
//currentHeight = (targetHeight) / ((float)x / (float)(numVertsX+1));
//height = (float)((r.NextDouble() + currentHeight) * size.Y);
//height = 1;
//stair += diff;
//if (z + x == 17)
//stair += 10;
//height += stair;
verts[count].Position = new Vector3(worldXPosition,(float)currentHeight, worldZPosition);
verts[count].Normal = Vector3.Zero;
verts[count].TextureCoordinate.X = (float)x / (numVertsX - 1);
verts[count].TextureCoordinate.Y = (float)z / (numVertsZ - 1);
//if (z + x == 17)
//stair -= 10;
count++;
// Advance in x
worldXPosition += cellSizeX;
}
currentHeight = 0;
// Advance in z
worldZPosition += cellSizeZ;
//diff *= -1;
//if (diff < 1)
// stair += numVertsX * diff;
}
int index = 0;
int startVertex = 0;
for (int cellZ = 0; cellZ < cellsZ; cellZ++)
{
for (int cellX = 0; cellX < cellsX; cellX++)
{
indices[index] = startVertex + 0;
indices[index + 1] = startVertex + 1;
indices[index + 2] = startVertex + numVertsX;
SetNormalOfTriangleAtIndices(indices[index], indices[index + 1], indices[index + 2]);
meshIndices.Add(new TriangleVertexIndices(index, index + 1, index + 2));
meshVertices.Add(verts[indices[index]].Position);
meshVertices.Add(verts[indices[index+1]].Position);
meshVertices.Add(verts[indices[index+2]].Position);
index += 3;
indices[index] = startVertex + 1;
indices[index + 1] = startVertex + numVertsX + 1;
indices[index + 2] = startVertex + numVertsX;
SetNormalOfTriangleAtIndices(indices[index], indices[index + 1], indices[index + 2]);
meshIndices.Add(new TriangleVertexIndices(index, index + 1, index + 2));
meshVertices.Add(verts[indices[index]].Position);
meshVertices.Add(verts[indices[index + 1]].Position);
meshVertices.Add(verts[indices[index + 2]].Position);
index += 3;
startVertex++;
}
startVertex++;
}
try
{
Effect = new BasicEffect(g);
mesh = new TriangleMesh();
//mesh.CreateMesh(meshVertices, meshIndices, 2, cellSizeX);
}
catch (Exception E)
{
}
this.Body = new Body();
Skin = new CollisionSkin(Body);
Body.CollisionSkin = Skin;
Body.ExternalData = this;
float heightf = 0;
try
{
Array2D field = new Array2D(numVertsX, numVertsZ);
int i = 0;
for (int c = 0; c < verts.Length; c++)
{
int x = c / numVertsX;
int z = c % numVertsX;
if (i >= verts.Length)
i = (i % verts.Length)+1;
heightf = verts[i].Position.Y + posCenter.Y;
//heightf = verts[i].Position.Y;
i += numVertsX;
field.SetAt(x,z, heightf);
}
// Body.MoveTo(Position, Matrix.Identity);
Heightmap hm = new Heightmap(field,
(-size.X / 2) / (cellsX+0) + cellSizeX/2,
(-size.Z / 2) / (cellsZ + 0) + cellSizeZ/2,
size.X / (cellsX+0),
size.Z / (cellsZ+0));
Skin.AddPrimitive(hm, new MaterialProperties(0.7f, 0.7f, 0.6f));
//Skin.AddPrimitive(GetMesh(), new MaterialProperties(0.7f, 0.7f, 0.6f));
//VertexPositionColor[] wireFrame = Skin.GetLocalSkinWireframe(); // 1200 across before Z changes to from -7.5/-7.35 to -7.35/-7.2
PhysicsSystem.CurrentPhysicsSystem.CollisionSystem.AddCollisionSkin(Skin);
CommonInit(posCenter, new Vector3(0,0,0), null, false);
}
catch(Exception E)
{
}
}
