public MyGrassPatch(HeightMap heightMap, int size)
{
MyGrassPatch.width = size;
MyGrassPatch.length = size;
this.heightMap = heightMap;
System.Random rSeed = new Random();
//triangleCount = length * width * bladeBySquare * bladeBySquare * nbSegment * 2 * 4 * 2;
triangleCount = length * width * bladeBySquare * bladeBySquare * nbSegment * 4;
vertices = new DataStream((12+8) * triangleCount * 3, true, true);
for (int i = 0; i < width;i++)
for (int j = 0; j < length; j++)
{
for (int xb = 0;xb < bladeBySquare;xb++)
for (int yb = 0; yb < bladeBySquare; yb++)
{
float x = i + xb * 1f / bladeBySquare + ((float)rSeed.NextDouble()-0.5f) * 0.2f;
float z = j + yb * 1f / bladeBySquare + ((float)rSeed.NextDouble() - 0.5f) * 0.2f;
//float x = i + xb * 1f / bladeBySquare;
//float z = j + yb * 1f / bladeBySquare;
addBlade(x, heightMap.getHeight(x, z), z, 1.0f + (float)rSeed.NextDouble() * 0.2f, (float)(rSeed.NextDouble()*Math.PI));
}
}
vertices.Position = 0;
}
public MyTerrain(HeightMap heightMap,int size)
{
MyTerrain.width = size;
MyTerrain.length = size;
this.heightMap = heightMap;
vertices = new DataStream((12+8) * triangleCount * 3, true, true);
for (int i = 0; i < width;i++)
for (int j = 0; j < length; j++)
{
float height;
height = heightMap.getHeight((float)i, (float)j);
vertices.Write(new Vector3(0.0f + i, height, 0.0f + j));
vertices.Write(new Vector2(0.0f, 0.0f));
height = heightMap.getHeight((float)i, (float)j+1f);
vertices.Write(new Vector3(0.0f + i, height, 1.0f + j));
vertices.Write(new Vector2(0.0f, 0.0f));
height = heightMap.getHeight((float)i+1, (float)j);
vertices.Write(new Vector3(1.0f + i, height, 0.0f + j));
vertices.Write(new Vector2(0.0f, 0.0f));
height = heightMap.getHeight((float)i, (float)j + 1);
vertices.Write(new Vector3(0.0f + i, height, 1.0f + j));
vertices.Write(new Vector2(0.0f, 0.0f));
height = heightMap.getHeight((float)i + 1, (float)j + 1);
vertices.Write(new Vector3(1.0f + i, height, 1.0f + j));
vertices.Write(new Vector2(0.0f, 0.0f));
height = heightMap.getHeight((float)i + 1, (float)j);
vertices.Write(new Vector3(1.0f + i, height, 0.0f + j));
vertices.Write(new Vector2(0.0f, 0.0f));
}
vertices.Position = 0;
}