private EnviromentProcessor getEnvProcessor()
{
EnviromentProcessor ep = new EnviromentProcessor(_mapWidth);
ep.setMapBlueprint(_blueprint);
ep.setVertexSpacing(_vertexSpacing);
return(ep);
}
public void buildTerrain(bool[] mapBlueprint, Biome bi)
{
_baseV = new Vector3[_worldWidth * _worldWidth];
Vector2[] UVs = new Vector2[_baseV.Length];
float uvStep = 1.0f / (_worldWidth - 1);
// Initialize the noise generator
NoiseGenerator ns = new NoiseGenerator(_worldWidth, 8, true, mapBlueprint, _seed);
ns.setInitialHeight(_defaultHeight);
ns.generatePlayableHeight(_generatePlayableHeight);
bi.configureAndInitNoiseGenrator(ns, _heightMultiplier, _worldWidth, _vertexSpacing, mapBlueprint);
_matTable = bi.getEnviroment();
_matTable.shouldProcessTrees(_spawnTrees);
_matTable.init();
_lowestPosition = ns.getBottomPlane();
// Build the base vertices and UV coordinates from the noise and our confinguration parameters
for (int i = 0; i < _worldWidth; i++)
{
for (int j = 0; j < _worldWidth; j++)
{
int index = (i * _worldWidth) + j;
float y = Constants.NOISE_HEIGHT_MULTIPLIER * _heightMultiplier * ns.getNoiseValue(i, j);
_baseV [index] = new Vector3(_vertexSpacing * i, y, _vertexSpacing * j);
UVs [index] = new Vector2((uvStep * j), 1 - (uvStep * i));
}
}
// Terrain vertices (vertices will be duplicated to have a flat shading effect)
List <Vector3> list = new List <Vector3> ();
// UVs must be duplicated as well to ensure each vertex has his UV index
List <Vector2> UV = new List <Vector2> ();
int addedV = 0;
int end = _worldWidth - 1;
for (int i = 0; i < end; i++)
{
for (int j = 0; j < end; j++)
{
int upperIndex = (i * _worldWidth) + j;
int lowerIndex = ((i + 1) * _worldWidth) + j;
// Get the base vertices from where we will generate our duplicated vertices
Vector3 a = _baseV [upperIndex];
Vector2 aUV = UVs [upperIndex];
Vector3 b = _baseV [lowerIndex];
Vector2 bUV = UVs [lowerIndex];
Vector3 c = _baseV [lowerIndex + 1];
Vector2 cUV = UVs [lowerIndex + 1];
Vector3 d = _baseV [upperIndex + 1];
Vector2 dUV = UVs [upperIndex + 1];
// Add the vertices to the list. Here is where the duplication occours
list.Add(a);
UV.Add(aUV);
list.Add(c);
UV.Add(bUV);
list.Add(b);
UV.Add(cUV);
list.Add(a);
UV.Add(aUV);
list.Add(d);
UV.Add(cUV);
list.Add(c);
UV.Add(dUV);
// Build the triangle mesh into submeshes to allow for multiple materials
_matTable.processTriangle(addedV, addedV + 1, addedV + 2, upperIndex, lowerIndex + 1, lowerIndex, _baseV);
addedV += 3;
_matTable.processTriangle(addedV, addedV + 1, addedV + 2, upperIndex, upperIndex + 1, lowerIndex + 1, _baseV);
addedV += 3;
}
}
// Create the Mesh object and configure it
_generatedMesh = new Mesh();
_generatedMesh.vertices = list.ToArray();
_generatedMesh.uv = UV.ToArray();
int subMeshCount = _matTable.getSubMaterial().Count;
_generatedMesh.subMeshCount = subMeshCount;
_generatedMaterials = new Material[subMeshCount];
int subMeshIndex = 0;
foreach (EnviromentProcessor.HeightMaterial hm in _matTable.getSubMaterial())
{
_generatedMesh.SetTriangles(hm.getSubMesh(), subMeshIndex);
_generatedMaterials [subMeshIndex] = hm.getMaterial();
subMeshIndex++;
}
_generatedMesh.RecalculateNormals();
}
