public void GenerateNoise(Vector3i offset)
{
this.offset = offset;
int sizeX = Chunk.SIZE_X + 2;
int sizeY = Chunk.SIZE_Y + 2;
int sizeZ = Chunk.SIZE_Z + 2;
for (int x = 0; x < sizeX; x += step)
{
for (int y = 0; y < sizeY; y += step)
{
for (int z = 0; z < sizeZ; z += step)
{
Vector3i a = new Vector3i(x, y, z) + offset;
Vector3i b = a + new Vector3i(step, step, step);
float a1 = noise.Noise(a.x, a.y, a.z);
float a2 = noise.Noise(b.x, a.y, a.z);
float a3 = noise.Noise(a.x, b.y, a.z);
float a4 = noise.Noise(b.x, b.y, a.z);
float b1 = noise.Noise(a.x, a.y, b.z);
float b2 = noise.Noise(b.x, a.y, b.z);
float b3 = noise.Noise(a.x, b.y, b.z);
float b4 = noise.Noise(b.x, b.y, b.z);
for (int tx = 0; tx < step && x + tx < sizeX; tx++)
{
for (int ty = 0; ty < step && y + ty < sizeY; ty++)
{
for (int tz = 0; tz < step && z + tz < sizeZ; tz++)
{
float fx = (float)tx / step;
float fy = (float)ty / step;
float fz = (float)tz / step;
float ta1 = Mathf.Lerp(a1, a2, fx);
float ta2 = Mathf.Lerp(a3, a4, fx);
float ta3 = Mathf.Lerp(ta1, ta2, fy);
float tb1 = Mathf.Lerp(b1, b2, fx);
float tb2 = Mathf.Lerp(b3, b4, fx);
float tb3 = Mathf.Lerp(tb1, tb2, fy);
float val = Mathf.Lerp(ta3, tb3, fz);
map[x + tx, y + ty, z + tz] = val;
}
}
}
}
}
}
}
//Helper method to generate out a single x,y section of the terrain
private void Generate(int cx, int cz)
{
int h1 = (int)(noise1.Noise(cx, cz) * 4);
if (h1 < 0)
{
h1 *= -1;
}
h1 = (h1) < 3? 3: (h1);
h1 = (h1) > 8? 8 : h1;
int h2 = (int)(noise2.Noise(cx, cz) * 2);
h2 = h2 < 0 ? 0: h2;
h2 = 6 > h2 ? 6: h2;
h2 += h1;
int deep = 0;
int worldY = h2;
for (; worldY > h1; worldY--)
{
if (noise3d.Noise(cx, worldY, cz) < 0)
{
GenerateBlock(cx, worldY, cz, deep);
deep++;
}
else
{
deep = 0;
}
}
for (; worldY >= 0; worldY--)
{
GenerateBlock(cx, worldY, cz, deep);
deep++;
}
}