void SetSets(out GrassInfo _prevSet, out GrassInfo _nextSet)
{
int prevIndex = GetPreviousIndex();
_prevSet = _alphaMapsOverYear [prevIndex];
_nextSet = _alphaMapsOverYear [(prevIndex + 1) % _alphaMapsOverYear.Count];
}
IEnumerator FinalizeAlphaMaps(GrassInfo _prevSet, GrassInfo _nextSet, float blend)
{
float total = GetTotal();
float currentTotal = 0;
for (int originY = 0; originY <= cropHeight - blockWidth; originY += blockWidth)
{
float currentCropWidth = cropWidth + originY;
for (int originX = 0; originX <= currentCropWidth - blockWidth; originX += blockWidth)
{
int offsetOriginX = originX + (int)(cropOrigin.x - originY / 2);
int offsetOriginY = originY + (int)cropOrigin.y;
for (int layer = 0; layer < terrainData.alphamapLayers; layer++)
{
currentTotal += blockWidth * blockWidth;
progress = currentTotal / total * 100;
if (_prevSet.alphamaps[layer].black && _nextSet.alphamaps[layer].black)
{
continue;
}
Texture2D inputText1 = new Texture2D(blockWidth, blockWidth);
Texture2D inputText2 = new Texture2D(blockWidth, blockWidth);
Color[] inputText1Pixels = _prevSet.alphamaps[layer].alphaMap.GetPixels(offsetOriginY, offsetOriginX, blockWidth, blockWidth);
Color[] inputText2Pixels = _nextSet.alphamaps[layer].alphaMap.GetPixels(offsetOriginY, offsetOriginX, blockWidth, blockWidth);
inputText1.SetPixels(inputText1Pixels);
inputText2.SetPixels(inputText2Pixels);
inputText1.Apply();
inputText2.Apply();
GrassTextureCombiner.instance.inputTex1 = inputText1;
GrassTextureCombiner.instance.inputTex2 = inputText2;
GrassTextureCombiner.instance.blend = blend;
GrassTextureCombiner.instance.activate = true;
yield return(new WaitForEndOfFrame());
Texture2D outputTexture2D = GrassTextureCombiner.instance.outputTexture2D;
Color[] outputPixels = outputTexture2D.GetPixels();
int index = 0;
for (int y = 0; y < blockWidth; y++)
{
for (int x = 0; x < blockWidth; x++)
{
outputBlock[x, y, layer] = outputPixels[index].r; //it's grayscale so any one value will do
index++;
}
}
Destroy(inputText1);
Destroy(inputText2);
Destroy(GrassTextureCombiner.instance.outputTexture2D);
}
terrainData.SetAlphamaps(offsetOriginX, offsetOriginY, outputBlock);
Array.Clear(outputBlock, 0, totalLength);
}
}
}
float GetBlend(GrassInfo prevSet, GrassInfo nextSet)
{
int prevSetYear = GetPrevSetYear(prevSet);
int nextSetYear = GetNextSetYear(nextSet);
DateTime prevSetDate = new DateTime(prevSetYear, prevSet.date.month, prevSet.date.day);
DateTime nextSetDate = new DateTime(nextSetYear, nextSet.date.month, nextSet.date.day);
double totalMinutes = (nextSetDate - prevSetDate).TotalMinutes;
double currentMinutes = (SceneManager.currentDate - prevSetDate).TotalMinutes;
float blend = (float)(currentMinutes / totalMinutes);
return(blend);
}
void PopulateAlphaMapsOverYear()
{
_alphaMapsOverYear = new List <GrassInfo> ();
foreach (GrassInfo sourceGrassInfo in alphaMapsOverYear)
{
foreach (Date date in sourceGrassInfo.dates)
{
GrassInfo newGrassInfo = new GrassInfo();
newGrassInfo.alphamaps = sourceGrassInfo.alphamaps;
newGrassInfo.date = date;
_alphaMapsOverYear.Add(newGrassInfo);
}
}
}
int GetNextSetYear(GrassInfo nextSet)
{
DateTime currentDate = SceneManager.currentDate;
Date nextDate = nextSet.date;
if (AreDatesInOrder(currentDate.Month, currentDate.Day, nextDate.month, nextDate.day))
{
return(currentDate.Year);
}
else
{
return(currentDate.Year + 1);
}
}
int GetPrevSetYear(GrassInfo prevSet)
{
DateTime currentDate = SceneManager.currentDate;
Date prevDate = prevSet.date;
if (AreDatesInOrder(prevDate.month, prevDate.day, currentDate.Month, currentDate.Day))
{
return(currentDate.Year);
}
else
{
return(currentDate.Year - 1);
}
}
int GetPreviousIndex()
{
for (int i = _alphaMapsOverYear.Count - 1; i >= 0; i--)
{
GrassInfo grassInfo = _alphaMapsOverYear[i];
if (SceneManager.currentDate.Month == _alphaMapsOverYear[i].date.month)
{
if (SceneManager.currentDate.Day >= _alphaMapsOverYear[i].date.day)
{
return(i);
}
}
else if (SceneManager.currentDate.Month > _alphaMapsOverYear[i].date.month)
{
return(i);
}
}
return(_alphaMapsOverYear.Count - 1);
}
