/// <summary> Populate voxels using perlin noise terrain at given position and scale. </summary>
public static void FillPerlin(Voxel[] voxels, Vector2Int pos, Vector3Int size, Vector3 scale, int noiseLayers, float noiseScale, AnimationCurve noiseCurve, BlockLayer[] layers)
{
const int mirrOff = 1024;
int pX = pos.x - mirrOff, pY = pos.y - mirrOff;
int sx = size.x, sy = size.y, sz = size.z, sxz = sx * size.z;
float scx = 1f / sx * scale.x;
float scz = 1f / sz * scale.z;
float scy = sy * scale.y;
float hbais = (sy - scy) / 2 - 1;
for (int z = 0; z < sz; z++)
{
for (int x = 0; x < sx; x++)
{
float noise = FractalPerlin((pX + x) * scx, (pY + z) * scz, noiseLayers, noiseScale);
int h = Mathf.Clamp(Mathf.RoundToInt(noiseCurve.Evaluate(noise) * scy + hbais), 0, sy - 1);
/*for (int y = 0; y < sy; y++) {
* BlockType ty;
* if (y == 0) ty = BlockType.Bedrock;
* else if (y < h * 0.66f) ty = BlockType.Stone;
* else if (y < h) ty = BlockType.Dirt;
* else if (y == h) ty = BlockType.Grass;
* else ty = BlockType.Air;
*
* voxels[XYZtoIndex(x, y, z, sx, sxz)].ty = ty;
* }*/
int y = 0;
/*voxels[XYZtoIndex(x, y++, z, sx, sxz)].ty = BlockType.Bedrock;
*
* for (; y < h * 0.66f;)
* voxels[XYZtoIndex(x, y++, z, sx, sxz)].ty = BlockType.Stone;
* for (; y < h;)
* voxels[XYZtoIndex(x, y++, z, sx, sxz)].ty = BlockType.Dirt;
* for (; y == h;)
* voxels[XYZtoIndex(x, y++, z, sx, sxz)].ty = BlockType.Grass;
* for (; y < sy;)
* voxels[XYZtoIndex(x, y++, z, sx, sxz)].ty = BlockType.Air;*/
for (int l = 0; l < layers.Length; l++)
{
BlockLayer lay = layers[l];
float lh = (lay.height == 0 ? h * lay.percentage : y + lay.height);
for (; y < lh;)
{
voxels[XYZtoIndex(x, y++, z, sx, sxz)].ty = lay.type;
}
}
}
}
}
/// <summary> Populate voxels with flat terrain using given layers. </summary>
public static void FillFlat(Voxel[] voxels, Vector3Int size, BlockLayer[] layers)
{
int wh = size.x * size.z;
for (int i_v = 0, i_lay = 0; i_lay < layers.Length; i_lay++)
{
BlockLayer lay = layers[i_lay];
for (int j = 0; j < wh * lay.height; j++)
{
voxels[i_v++] = new Voxel(lay.type);
//if (lay.type != BlockType.Air) solids++;
}
}
}
