/// <summary>
/// Adds trees to the world.
/// If treeProb parameter is set to TreeProbability.None then no trees will be added.
/// </summary>
public void AddTrees(ref BlockData[,,] blocks, TreeProbability treeProb)
{
if (treeProb == TreeProbability.None)
{
return;
}
float woodbaseProbability = treeProb == TreeProbability.Some
? WoodbaseSomeProbability
: WoodbaseHighProbability;
for (int x = 1; x < _totalBlockNumberX - 1; x++)
{
// this 20 is hard coded as for now but generally it would be nice if
// this loop could know in advance where the lowest grass is
for (int y = 20; y < _totalBlockNumberY - TreeHeight - 1; y++)
{
for (int z = 1; z < _totalBlockNumberZ - 1; z++)
{
if (blocks[x, y, z].Type != BlockType.Grass)
{
continue;
}
if (IsThereEnoughSpaceForTree(in blocks, x, y, z))
{
if (FractalFunc(x, y, z, WoodbaseSmooth, WoodbaseOctaves) < woodbaseProbability)
{
BuildTree(ref blocks, x, y, z);
}
}
}
}
}
}
// Perlin function value of x is equal to its value of -x. Same for y.
// To avoid it we need an offset, quite large one to be sure.
public TerrainGenerator(GameSettings options)
{
_worldSizeX = options.WorldSizeX;
_worldSizeZ = options.WorldSizeZ;
_totalBlockNumberX = _worldSizeX * World.ChunkSize;
_totalBlockNumberY = World.WorldSizeY * World.ChunkSize;
_totalBlockNumberZ = _worldSizeZ * World.ChunkSize;
TreeProbability = options.TreeProbability;
WaterLevel = options.WaterLevel;
SeedValue = options.SeedValue;
}
/// <summary>
/// Adds trees to the world.
/// If treeProb parameter is set to TreeProbability.None then no trees will be added.
/// In order to avoid potential collisions boundary cubes on x and z axis are ignored
/// and therefore will never grow a tree resulting in slightly different although unnoticeable
/// for player results.
/// </summary>
public void AddTreesParallel(TreeProbability treeProb)
{
if (treeProb == TreeProbability.None)
{
return;
}
float woodbaseProbability = treeProb == TreeProbability.Some
? WoodbaseSomeProbability
: WoodbaseHighProbability;
var queue = new MultiThreadTaskQueue();
// schedule one task per chunk
for (int i = 0; i < World.Settings.WorldSizeX; i++)
{
for (int j = 0; j < World.Settings.WorldSizeZ; j++)
{
queue.ScheduleTask(AddTreesInChunkParallel, woodbaseProbability, i, j);
}
}
queue.RunAllInParallel(); // this is synchronous
}
