public void Erode(SimpleHeightArray inHeightArray, ThermalErosionConfiguration configuration)
{
var tParam = configuration.TParam;
var cParam = configuration.CParam;
var stepCount = configuration.StepCount;
var thermalErosionGroundMover = configuration.GroundMover;
var neighbourChooser = configuration.NeighboursChooser;
var finalDifferenceArray = new SimpleHeightArray(inHeightArray.Width, inHeightArray.Height);
for (int stepIndex = 0; stepIndex < stepCount; stepIndex++)
{
Parallel.For <SimpleHeightArray>(0, inHeightArray.Height,
new ParallelOptions {
MaxDegreeOfParallelism = 4
},
() => new SimpleHeightArray(inHeightArray.Width, inHeightArray.Height),
(y, loop, localDifferenceArray) =>
{
// Parallel.For(0, inHeightArray.Height,new ParallelOptions { MaxDegreeOfParallelism = 3 }, y =>
// for (int y = 0; y < inHeightArray.Height; y++)
// {
for (int x = 0; x < inHeightArray.Width; x++)
{
var point = new IntVector2(x, y);
var thisValue = inHeightArray.GetValue(point);
var neighbours = configuration.NeighbourFinder.Find(inHeightArray, point)
.Select(n => new NeighbourInfo(n, thisValue - inHeightArray.GetValue(n))).ToList();
neighbours = neighbours.Where(c => neighbourChooser.Choose(c, configuration)).ToList();
if (!neighbours.Any())
{
continue;
}
var changeArray = localDifferenceArray;
//changeArray = finalDifferenceArray;
thermalErosionGroundMover.Move(neighbours, configuration, changeArray, point);
}
return(localDifferenceArray);
},
(localDifferenceArray) => { finalDifferenceArray.SumValue(localDifferenceArray); });
for (int y = 0; y < inHeightArray.Height; y++)
{
for (int x = 0; x < inHeightArray.Width; x++)
{
var point = new IntVector2(x, y);
inHeightArray.AddValue(point, finalDifferenceArray.GetValue(point));
finalDifferenceArray.SetValue(point, 0);
}
}
}
}
public void AtOnceErode(SimpleHeightArray inHeightArray, ThermalErosionConfiguration configuration)
{
var tParam = configuration.TParam;
var cParam = configuration.CParam;
var stepCount = configuration.StepCount;
for (int stepIndex = 0; stepIndex < stepCount; stepIndex++)
{
for (int y = 0; y < inHeightArray.Height; y++)
{
for (int x = 0; x < inHeightArray.Width; x++)
{
var point = new IntVector2(x, y);
var thisValue = inHeightArray.GetValue(point);
var neighbours = configuration.NeighbourFinder.Find(inHeightArray, point).Select(n => new
{
point = n,
difference = thisValue - inHeightArray.GetValue(n)
}).ToList();
neighbours = neighbours.Where(c => c.difference > tParam).ToList();
if (!neighbours.Any())
{
continue;
}
var dTotal = neighbours.Sum(c => c.difference);
var dMax = neighbours.Max(c => c.difference);
foreach (var aNeighbour in neighbours)
{
var movedGround = cParam * (dMax - tParam) * (aNeighbour.difference / dTotal);
inHeightArray.AddValue(aNeighbour.point, movedGround);
inHeightArray.AddValue(point, -movedGround);
}
}
}
}
}
public void Move(List <ThermalEroder.NeighbourInfo> neighbours, ThermalErosionConfiguration configuration,
SimpleHeightArray outArray, IntVector2 point)
{
_func(neighbours, configuration, outArray, point);
}
public void Erode(SimpleHeightArray inHeightArray, ThermalErosionConfiguration configuration)
{
var tParam = configuration.TParam;
var cParam = configuration.CParam;
var stepCount = configuration.StepCount;
var finalDifferenceArray = new SimpleHeightArray(inHeightArray.Width, inHeightArray.Height);
for (int stepIndex = 0; stepIndex < stepCount; stepIndex++)
{
Parallel.For <SimpleHeightArray>(0, inHeightArray.Height,
new ParallelOptions {
MaxDegreeOfParallelism = 4
},
() => new SimpleHeightArray(inHeightArray.Width, inHeightArray.Height),
(y, loop, localDifferenceArray) =>
{
// Parallel.For(0, inHeightArray.Height,new ParallelOptions { MaxDegreeOfParallelism = 3 }, y =>
// for (int y = 0; y < inHeightArray.Height; y++)
// {
for (int x = 0; x < inHeightArray.Width; x++)
{
var point = new IntVector2(x, y);
var thisValue = inHeightArray.GetValue(point);
var neighbours = configuration.NeighbourFinder.Find(inHeightArray, point).Select(n => new
{
point = n,
difference = thisValue - inHeightArray.GetValue(n)
}).ToList();
neighbours = neighbours.Where(c => c.difference < tParam && c.difference > 0).ToList();
if (!neighbours.Any())
{
continue;
}
var dTotal = neighbours.Sum(c => c.difference);
var dMax = neighbours.Max(c => c.difference);
foreach (var aNeighbour in neighbours)
{
var movedGround = cParam * (dMax) * (aNeighbour.difference / dTotal);
//finalDifferenceArray.AddValue(aNeighbour.point, movedGround);
//finalDifferenceArray.AddValue(point, -movedGround);
localDifferenceArray.AddValue(aNeighbour.point, movedGround);
localDifferenceArray.AddValue(point, -movedGround);
}
}
return(localDifferenceArray);
},
(localDifferenceArray) => { finalDifferenceArray.SumValue(localDifferenceArray); });
for (int y = 0; y < inHeightArray.Height; y++)
{
for (int x = 0; x < inHeightArray.Width; x++)
{
var point = new IntVector2(x, y);
inHeightArray.AddValue(point, finalDifferenceArray.GetValue(point));
finalDifferenceArray.SetValue(point, 0);
}
}
}
}
public bool Choose(ThermalEroder.NeighbourInfo neighbourInfo, ThermalErosionConfiguration conf)
{
return(_func(neighbourInfo, conf));
}
