public override void GenerateSamples(ref MapPixelData mapPixel)
{
//System.Diagnostics.Stopwatch stopwatch = System.Diagnostics.Stopwatch.StartNew();
//long startTime = stopwatch.ElapsedMilliseconds;
DaggerfallUnity dfUnity = DaggerfallUnity.Instance;
// Create samples arrays
mapPixel.tilemapSamples = new TilemapSample[MapsFile.WorldMapTileDim, MapsFile.WorldMapTileDim];
mapPixel.heightmapSamples = new float[HeightmapDimension, HeightmapDimension];
// Divisor ensures continuous 0-1 range of height samples
float div = (float)(HeightmapDimension - 1) / 3f;
// Read neighbouring height samples for this map pixel
int mx = mapPixel.mapPixelX;
int my = mapPixel.mapPixelY;
byte[,] shm = dfUnity.ContentReader.WoodsFileReader.GetHeightMapValuesRange(mx - 2, my - 2, 4);
byte[,] lhm = dfUnity.ContentReader.WoodsFileReader.GetLargeHeightMapValuesRange(mx - 1, my, 3);
// the number of parallel tasks (note Nystul: use logical processor count for now - seems to be a good value)
int numParallelTasks = Environment.ProcessorCount;
// events used to synchronize thread computations (wait for them to finish)
var doneEvents = new ManualResetEvent[numParallelTasks];
// the array of instances of the height computations helper class
var heightsComputationTaskArray = new HeightsComputationTask[numParallelTasks];
// array of the data needed by the different tasks
var dataForTasks = new HeightsComputationTask.DataForTask[numParallelTasks];
for (int i = 0; i < numParallelTasks; i++)
{
doneEvents[i] = new ManualResetEvent(false);
var heightsComputationTask = new HeightsComputationTask(doneEvents[i]);
heightsComputationTaskArray[i] = heightsComputationTask;
dataForTasks[i] = new HeightsComputationTask.DataForTask();
dataForTasks[i].numTasks = numParallelTasks;
dataForTasks[i].currentTask = i;
dataForTasks[i].HeightmapDimension = HeightmapDimension;
dataForTasks[i].MaxTerrainHeight = MaxTerrainHeight;
dataForTasks[i].div = div;
dataForTasks[i].shm = shm;
dataForTasks[i].lhm = lhm;
dataForTasks[i].mapPixel = mapPixel;
ThreadPool.QueueUserWorkItem(heightsComputationTask.ProcessTaskThread, dataForTasks[i]);
}
// wait for all tasks to finish computation
WaitHandle.WaitAll(doneEvents);
// computed average and max height in a second pass (after threaded tasks computed all heights)
float averageHeight = 0;
float maxHeight = float.MinValue;
int dim = HeightmapDimension;
for (int y = 0; y < dim; y++)
{
for (int x = 0; x < dim; x++)
{
// get sample
float height = mapPixel.heightmapSamples[y, x];
// Accumulate average height
averageHeight += height;
// Get max height
if (height > maxHeight)
{
maxHeight = height;
}
}
}
// Average and max heights are passed back for locations
mapPixel.averageHeight = (averageHeight /= (float)(dim * dim));
mapPixel.maxHeight = maxHeight;
//long totalTime = stopwatch.ElapsedMilliseconds - startTime;
//DaggerfallUnity.LogMessage(string.Format("GenerateSamples took: {0}ms", totalTime), true);
}
public override void GenerateSamples(ref MapPixelData mapPixel)
{
//System.Diagnostics.Stopwatch stopwatch = System.Diagnostics.Stopwatch.StartNew();
//long startTime = stopwatch.ElapsedMilliseconds;
DaggerfallUnity dfUnity = DaggerfallUnity.Instance;
// Create samples arrays
mapPixel.heightmapSamples = new float[HeightmapDimension, HeightmapDimension];
// Divisor ensures continuous 0-1 range of tile samples
float div = (float)(HeightmapDimension - 1) / 3f;
// Read neighbouring height samples for this map pixel
int mx = mapPixel.mapPixelX;
int my = mapPixel.mapPixelY;
// Seed random with terrain key
UnityEngine.Random.InitState(TerrainHelper.MakeTerrainKey(mx, my));
byte[,] shm = dfUnity.ContentReader.WoodsFileReader.GetHeightMapValuesRange(mx - 2, my - 2, 4);
byte[,] lhm = dfUnity.ContentReader.WoodsFileReader.GetLargeHeightMapValuesRange(mx - 1, my, 3);
float[,] baseHeightValue = new float[4, 4];
for (int y = 0; y < 4; y++)
{
for (int x = 0; x < 4; x++)
{
int mapPixelX = Math.Max(0, Math.Min(mx + x - 2, WoodsFile.mapWidthValue));
int mapPixelY = Math.Max(0, Math.Min(my + y - 2, WoodsFile.mapHeightValue));
baseHeightValue[x, y] = shm[x, y] * ImprovedWorldTerrain.computeHeightMultiplier(mapPixelX, mapPixelY);
}
}
float[,] waterMap = new float[4, 4];
for (int y = 0; y < 4; y++)
{
for (int x = 0; x < 4; x++)
{
if (shm[x, y] <= 2) // mappixel is water
{
waterMap[x, y] = 0.0f;
}
else
{
waterMap[x, y] = 1.0f;
}
}
}
float[,] climateMap = new float[4, 4];
for (int y = 0; y < 4; y++)
{
for (int x = 0; x < 4; x++)
{
int mapPixelX = Math.Max(0, Math.Min(mx + x - 2, WoodsFile.mapWidthValue));
int mapPixelY = Math.Max(0, Math.Min(my + y - 2, WoodsFile.mapHeightValue));
climateMap[x, y] = GetNoiseMapScaleBasedOnClimate(mapPixelX, mapPixelY);
}
}
float[,] waterDistanceMap = new float[4, 4];
for (int y = 0; y < 4; y++)
{
for (int x = 0; x < 4; x++)
{
int mapPixelX = Math.Max(0, Math.Min(mx + x - 2, WoodsFile.mapWidthValue));
int mapPixelY = Math.Max(0, Math.Min(my + y - 2, WoodsFile.mapHeightValue));
waterDistanceMap[x, y] = (float)Math.Sqrt(ImprovedWorldTerrain.MapDistanceSquaredFromWater[mapPixelY * WoodsFile.mapWidthValue + mapPixelX]);
}
}
float[,] noiseHeightMultiplierMap = new float[4, 4];
for (int y = 0; y < 4; y++)
{
for (int x = 0; x < 4; x++)
{
// interpolation multiplier taking near coast map pixels into account
// (multiply with 0 at coast line and 1 at interpolationEndDistanceFromWaterForNoiseScaleMultiplier)
float multFact = (Mathf.Min(interpolationEndDistanceFromWaterForNoiseScaleMultiplier, waterDistanceMap[x, y]) / interpolationEndDistanceFromWaterForNoiseScaleMultiplier);
// blend watermap with climatemap taking into account multFact
noiseHeightMultiplierMap[x, y] = waterMap[x, y] * climateMap[x, y] * multFact;
}
}
//float[,] noiseHeightMultiplierMap = new float[4, 4];
//for (int y = 0; y < 4; y++)
//{
// for (int x = 0; x < 4; x++)
// {
// int mapPixelX = Math.Max(0, Math.Min(mx + x - 2, WoodsFile.mapWidthValue));
// int mapPixelY = Math.Max(0, Math.Min(my + y - 2, WoodsFile.mapHeightValue));
// float climateValue = GetNoiseMapScaleBasedOnClimate(mapPixelX, mapPixelY);
// float waterDistance = (float)Math.Sqrt(ImprovedWorldTerrain.MapDistanceSquaredFromWater[mapPixelY * WoodsFile.mapWidthValue + mapPixelX]);
// float waterValue;
// if (shm[x, y] <= 2) // mappixel is water
// waterValue = 0.0f;
// else
// waterValue = 1.0f;
// // interpolation multiplier taking near coast map pixels into account
// // (multiply with 0 at coast line and 1 at interpolationEndDistanceFromWaterForNoiseScaleMultiplier)
// float multFact = (Mathf.Min(interpolationEndDistanceFromWaterForNoiseScaleMultiplier, waterDistance) / interpolationEndDistanceFromWaterForNoiseScaleMultiplier);
// // blend watermap with climatemap taking into account multFact
// noiseHeightMultiplierMap[x, y] = waterValue * climateValue * multFact;
// }
//}
//int numWorkerThreads = 0, completionPortThreads = 0;
//int numMinWorkerThreads = 0, numMaxWorkerThreads = 0;
//ThreadPool.GetAvailableThreads(out numWorkerThreads, out completionPortThreads);
//ThreadPool.GetMinThreads(out numMinWorkerThreads, out completionPortThreads);
//ThreadPool.GetMaxThreads(out numMaxWorkerThreads, out completionPortThreads);
//Debug.Log(String.Format("available threads: {0}, numMinWorkerThreads: {1}, numMaxWorkerThreads: {2}", numWorkerThreads, numMinWorkerThreads, numMaxWorkerThreads));
float extraNoiseScaleBasedOnClimate = GetExtraNoiseScaleBasedOnClimate(mx, my);
// the number of parallel tasks (use logical processor count for now - seems to be a good value)
int numParallelTasks = Environment.ProcessorCount;
// events used to synchronize thread computations (wait for them to finish)
var doneEvents = new ManualResetEvent[numParallelTasks];
// the array of instances of the height computations helper class
var heightsComputationTaskArray = new HeightsComputationTask[numParallelTasks];
// array of the data needed by the different tasks
var dataForTasks = new HeightsComputationTask.DataForTask[numParallelTasks];
for (int i = 0; i < numParallelTasks; i++)
{
doneEvents[i] = new ManualResetEvent(false);
var heightsComputationTask = new HeightsComputationTask(doneEvents[i]);
heightsComputationTaskArray[i] = heightsComputationTask;
dataForTasks[i] = new HeightsComputationTask.DataForTask();
dataForTasks[i].numTasks = numParallelTasks;
dataForTasks[i].currentTask = i;
dataForTasks[i].HeightmapDimension = HeightmapDimension;
dataForTasks[i].MaxTerrainHeight = MaxTerrainHeight;
dataForTasks[i].div = div;
dataForTasks[i].baseHeightValue = baseHeightValue;
dataForTasks[i].lhm = lhm;
dataForTasks[i].noiseHeightMultiplierMap = noiseHeightMultiplierMap;
dataForTasks[i].extraNoiseScaleBasedOnClimate = extraNoiseScaleBasedOnClimate;
dataForTasks[i].mapPixel = mapPixel;
ThreadPool.QueueUserWorkItem(heightsComputationTask.ThreadProc, dataForTasks[i]);
}
// wait for all tasks to finish computation
WaitHandle.WaitAll(doneEvents);
// computed average and max height in a second pass (after threaded tasks computed all heights)
float averageHeight = 0;
float maxHeight = float.MinValue;
int dim = HeightmapDimension;
for (int y = 0; y < dim; y++)
{
for (int x = 0; x < dim; x++)
{
// get sample
float height = mapPixel.heightmapSamples[y, x];
// Accumulate average height
averageHeight += height;
// Get max height
if (height > maxHeight)
{
maxHeight = height;
}
}
}
// Average and max heights are passed back for locations
mapPixel.averageHeight = (averageHeight /= (float)(dim * dim));
mapPixel.maxHeight = maxHeight;
//long totalTime = stopwatch.ElapsedMilliseconds - startTime;
//DaggerfallUnity.LogMessage(string.Format("GenerateSamples took: {0}ms", totalTime), true);
}
