public byte GenBlockData(Vector3 globalPos)
{
int yPos = Mathf.FloorToInt(globalPos.y);
/* IMMUTABLE PASS */
// If outside world, return air.
if (!worldData.IsVoxelInWorld(globalPos))
{
return(0);
}
// If bottom block of chunk, return bedrock.
if (yPos == 0)
{
return(1);
}
/* BIOME SELECTION PASS*/
int solidGroundHeight = 42;
float sumOfHeights = 0f;
int count = 0;
float strongestWeight = 0f;
int strongestBiomeIndex = 0;
for (int i = 0; i < GameAssets.Instance.biomes.Length; i++)
{
float weight = Noise.Get2DPerlin(new Vector2(globalPos.x, globalPos.z), GameAssets.Instance.biomes[i].GetTerrainNoiseOffset(), GameAssets.Instance.biomes[i].GetTerrainNoiseScale());
// Keep track of which weight is strongest.
if (weight > strongestWeight)
{
strongestWeight = weight;
strongestBiomeIndex = i;
}
// Get the height of the terrain (for the current biome) and multiply it by its weight.
float height = GameAssets.Instance.biomes[i].GetTerrainHeight() * Noise.Get2DPerlin(new Vector2(globalPos.x, globalPos.z), 0, GameAssets.Instance.biomes[i].GetTerrainScale()) * weight;
// If the height value is greater 0 add it to the sum of heights.
if (height > 0)
{
sumOfHeights += height;
count++;
}
}
// Set biome to the one with the strongest weight.
BiomeData biome = GameAssets.Instance.biomes[strongestBiomeIndex];
// Get the average of the heights.
sumOfHeights /= count;
int terrainHeight = Mathf.FloorToInt(sumOfHeights + solidGroundHeight);
/* BASIC TERRAIN PASS */
byte voxelID;
if (yPos == terrainHeight)
{
voxelID = biome.GetSurfaceBlock();
}
else if (yPos < terrainHeight && yPos > terrainHeight - 4)
{
voxelID = biome.GetSubSurfaceBlock();
}
else if (yPos > terrainHeight)
{
return(0);
}
else
{
voxelID = 2;
}
/* SECOND PASS */
if (voxelID == 2)
{
foreach (DepositData deposit in biome.GetDeposits())
{
if (yPos > deposit.GetHeight().x&& yPos < deposit.GetHeight().y)
{
if (Noise.Get3DPerlin(globalPos, deposit.GetOffset(), deposit.GetScale(), deposit.GetThreshold()))
{
voxelID = deposit.GetDepositId();
}
}
}
}
/* TREE PASS */
//if ( yPos == terrainHeight && biome.placeMajorFlora ) {
// if ( Noise.Get2DPerlin( new Vector2( globalPos.x, globalPos.z ), 0, biome.majorFloraZoneScale ) > biome.majorFloraZoneThreshold ) {
// if ( Noise.Get2DPerlin( new Vector2( globalPos.x, globalPos.z ), 0, biome.majorFloraPlacementScale ) > biome.majorFloraPlacementThreshold ) {
// modifications.Enqueue( Structures.GenerateMajorFlora( biome.majorFloraIndex, globalPos, biome.height.x, biome.height.y ) );
// }
// }
//}
return(voxelID);
}
