protected abstract void RenderEffect(int frameNum, ref PixelFrameBuffer frameBuffer);
protected EffectIntents RenderNode(ElementNode node)
{
EffectIntents effectIntents = new EffectIntents();
int nFrames = (int)(TimeSpan.TotalMilliseconds / FrameTime);
if (nFrames <= 0) return effectIntents;
var buffer = new PixelFrameBuffer(BufferWi, BufferHt, UseBaseColor?BaseColor:Color.Transparent);
int bufferSize = StringPixelCounts.Sum();
TimeSpan startTime = TimeSpan.Zero;
// set up arrays to hold the generated colors
var pixels = new RGBValue[bufferSize][];
for (int eidx = 0; eidx < bufferSize; eidx++)
pixels[eidx] = new RGBValue[nFrames];
// generate all the pixels
for (int frameNum = 0; frameNum < nFrames; frameNum++)
{
if (UseBaseColor)
{
var level = BaseLevelCurve.GetValue(GetEffectTimeIntervalPosition(frameNum)*100)/100;
buffer.ClearBuffer(level);
}
else
{
buffer.ClearBuffer();
}
RenderEffect(frameNum, ref buffer);
// peel off this frames pixels...
if (StringOrientation == StringOrientation.Horizontal)
{
int i = 0;
for (int y = 0; y < BufferHt; y++)
{
for (int x = 0; x < StringPixelCounts[y]; x++)
{
pixels[i][frameNum] = new RGBValue(buffer.GetColorAt(x,y));
i++;
}
}
}
else
{
int i = 0;
for (int x = 0; x < BufferWi; x++)
{
for (int y = 0; y < StringPixelCounts[x]; y++)
{
pixels[i][frameNum] = new RGBValue(buffer.GetColorAt(x, y));
i++;
}
}
}
};
// create the intents
var frameTs = new TimeSpan(0, 0, 0, 0, FrameTime);
List<Element> elements = node.ToList();
int numElements = node.Count();
for (int eidx = 0; eidx < numElements; eidx++)
{
IIntent intent = new StaticArrayIntent<RGBValue>(frameTs, pixels[eidx], TimeSpan);
effectIntents.AddIntentForElement(elements[eidx].Id, intent, startTime);
}
return effectIntents;
}
protected override void RenderEffect(int frame, ref PixelFrameBuffer frameBuffer)
{
double position = GetEffectTimeIntervalPosition(frame);
int x, y;
if (frame == 0)
{
int i;
for (i = 0; i < _fireBuffer.Count(); i++)
{
_fireBuffer[i] = 0;
}
}
int maxHt = BufferHt;
int maxWi = BufferWi;
if (Location == FireDirection.Left || Location == FireDirection.Right)
{
maxHt = BufferWi;
maxWi = BufferHt;
}
// build fire
for (x = 0; x < maxWi; x++)
{
var r = x % 2 == 0 ? 190 + (Rand() % 10) : 100 + (Rand() % 50);
SetFireBuffer(x, 0, r, maxWi, maxHt);
}
double interval = GetEffectTimeIntervalPosition(frame);
int h = (int)Height.GetValue(interval*100);
if(h <= 0)
{
h = 1;
}
int step = 255 * 100 / maxHt / h;
for (y = 1; y < maxHt; y++)
{
for (x = 0; x < maxWi; x++)
{
var v1 = GetFireBuffer(x - 1, y - 1, maxWi, maxHt);
var v2 = GetFireBuffer(x + 1, y - 1, maxWi, maxHt);
var v3 = GetFireBuffer(x, y - 1, maxWi, maxHt);
var v4 = GetFireBuffer(x, y - 1, maxWi, maxHt);
var n = 0;
var sum = 0;
if (v1 >= 0)
{
sum += v1;
n++;
}
if (v2 >= 0)
{
sum += v2;
n++;
}
if (v3 >= 0)
{
sum += v3;
n++;
}
if (v4 >= 0)
{
sum += v4;
n++;
}
var newIndex = n > 0 ? sum / n : 0;
if (newIndex > 0)
{
newIndex += (Rand() % 100 < 20) ? step : -step;
if (newIndex < 0) newIndex = 0;
if (newIndex >= FirePalette.Count()) newIndex = FirePalette.Count() - 1;
}
SetFireBuffer(x, y, newIndex, maxWi, maxHt);
}
}
for (y = 0; y < maxHt; y++)
{
for (x = 0; x < maxWi; x++)
{
int xp = x;
int yp = y;
if (Location == FireDirection.Top || Location == FireDirection.Right)
{
yp = maxHt - y - 1;
}
if (Location == FireDirection.Left || Location == FireDirection.Right)
{
int t = xp;
xp = yp;
yp = t;
}
Color color = FirePalette.GetColor(GetFireBuffer(x, y, maxWi, maxHt));
var hsv = HSV.FromRGB(color);
if (HueShift > 0)
{
hsv.H = hsv.H + (HueShift / 100.0f);
}
hsv.V = hsv.V * LevelCurve.GetValue(position * 100) / 100;
//if (color.R == 0 && color.G == 0 && color.B == 0)
//{
// color = Color.Transparent;
//}
frameBuffer.SetPixel(xp, yp, hsv);
}
}
}
protected override void RenderEffect(int frame, ref PixelFrameBuffer frameBuffer)
{
using (var bitmap = new Bitmap(BufferWi, BufferHt))
{
using (Graphics graphics = Graphics.FromImage(bitmap))
{
var text = TextMode == TextMode.Normal ? TextLines.Where(x => !String.IsNullOrEmpty(x)).ToList() : SplitTextIntoCharacters(TextLines);
int numberLines=text.Count();
SizeF textsize = new SizeF(0,0);
foreach (string t in text)
{
if(!String.IsNullOrEmpty(t))
{
var size = graphics.MeasureString(t, Font);
if (size.Width > textsize.Width)
{
textsize = size;
}
}
}
_maxTextSize = Convert.ToInt32(textsize.Width*.95);
int maxht = Convert.ToInt32(textsize.Height * numberLines);
int xlimit = (BufferWi + _maxTextSize) * 8 + 1;
int ylimit = (BufferHt + maxht) * 8 + 1;
int offsetLeft = (((BufferWi - _maxTextSize) / 2) * 2 + Position) / 2;
int offsetTop = (((BufferHt - maxht)/2)*2 + Position) / 2;
double intervalPosition = (GetEffectTimeIntervalPosition(frame) * Speed) % 1;
Point point;
switch (Direction)
{
case TextDirection.Left:
// left
int leftX = BufferWi - (int)(intervalPosition * (textsize.Width + BufferWi));
point =
new Point(Convert.ToInt32(CenterStop ? Math.Max(leftX, (BufferWi - (int)textsize.Width) / 2) : leftX), offsetTop);
DrawText(text, graphics, point);
break;
case TextDirection.Right:
// right
int rightX = -_maxTextSize + (int)(intervalPosition * (_maxTextSize + BufferWi));
point =
new Point(Convert.ToInt32(CenterStop ? Math.Min(rightX, (BufferWi - (int)textsize.Width) / 2) : rightX), offsetTop);
DrawText(text, graphics, point);
break;
case TextDirection.Up:
// up
int upY = BufferHt - (int)(((textsize.Height * numberLines) + BufferHt) * intervalPosition);
point = new Point(offsetLeft,
Convert.ToInt32(CenterStop ? Math.Max(upY, (BufferHt - (int)(textsize.Height * numberLines)) / 2): upY));
DrawText(text, graphics, point);
break;
case TextDirection.Down:
// down
int downY = -(int)(textsize.Height * numberLines) + (int)(((textsize.Height * numberLines) + BufferHt) * intervalPosition);
point = new Point(offsetLeft,
Convert.ToInt32(CenterStop
? Math.Min(downY, (BufferHt - (int)(textsize.Height * numberLines)) / 2)
: downY));
DrawText(text, graphics, point);
break;
default:
// no movement - centered
point = new Point(((BufferWi-_maxTextSize)/2)+PositionX, offsetTop);
DrawText(text, graphics, point);
break;
}
// copy to frameBuffer
for (int x = 0; x < BufferWi; x++)
{
for (int y = 0; y < BufferHt; y++)
{
Color color = bitmap.GetPixel(x, BufferHt - y - 1);
if (!EmptyColor.Equals(color))
{
frameBuffer.SetPixel(x, y, color);
}
}
}
}
}
}
protected EffectIntents RenderNode(ElementNode node)
{
EffectIntents effectIntents = new EffectIntents();
int nFrames = (int)(TimeSpan.TotalMilliseconds / FrameTime);
if (nFrames <= 0)
{
return(effectIntents);
}
var buffer = new PixelFrameBuffer(BufferWi, BufferHt, UseBaseColor?BaseColor:Color.Transparent);
int bufferSize = StringPixelCounts.Sum();
TimeSpan startTime = TimeSpan.Zero;
// set up arrays to hold the generated colors
var pixels = new RGBValue[bufferSize][];
for (int eidx = 0; eidx < bufferSize; eidx++)
{
pixels[eidx] = new RGBValue[nFrames];
}
// generate all the pixels
for (int frameNum = 0; frameNum < nFrames; frameNum++)
{
if (UseBaseColor)
{
var level = BaseLevelCurve.GetValue(GetEffectTimeIntervalPosition(frameNum) * 100) / 100;
buffer.ClearBuffer(level);
}
else
{
buffer.ClearBuffer();
}
RenderEffect(frameNum, ref buffer);
// peel off this frames pixels...
if (StringOrientation == StringOrientation.Horizontal)
{
int i = 0;
for (int y = 0; y < BufferHt; y++)
{
for (int x = 0; x < StringPixelCounts[y]; x++)
{
pixels[i][frameNum] = new RGBValue(buffer.GetColorAt(x, y));
i++;
}
}
}
else
{
int i = 0;
for (int x = 0; x < BufferWi; x++)
{
for (int y = 0; y < StringPixelCounts[x]; y++)
{
pixels[i][frameNum] = new RGBValue(buffer.GetColorAt(x, y));
i++;
}
}
}
}
;
// create the intents
var frameTs = new TimeSpan(0, 0, 0, 0, FrameTime);
List <Element> elements = node.ToList();
int numElements = node.Count();
for (int eidx = 0; eidx < numElements; eidx++)
{
IIntent intent = new StaticArrayIntent <RGBValue>(frameTs, pixels[eidx], TimeSpan);
effectIntents.AddIntentForElement(elements[eidx].Id, intent, startTime);
}
return(effectIntents);
}
protected override void RenderEffect(int frame, ref PixelFrameBuffer frameBuffer)
{
int x, y, n, colorIdx;
int colorcnt = Colors.Count();
int barCount = Repeat * colorcnt;
double position = (GetEffectTimeIntervalPosition(frame) * Speed) % 1;
if (barCount < 1) barCount = 1;
if (Direction < BarDirection.Left || Direction == BarDirection.AlternateUp || Direction == BarDirection.AlternateDown)
{
int barHt = BufferHt / barCount+1;
if (barHt < 1) barHt = 1;
int halfHt = BufferHt / 2;
int blockHt = colorcnt * barHt;
if (blockHt < 1) blockHt = 1;
int fOffset = (int) (position*blockHt*Repeat);// : Speed * frame / 4 % blockHt);
if(Direction == BarDirection.AlternateUp || Direction == BarDirection.AlternateDown)
{
fOffset = (int)(Math.Floor(position*barCount)*barHt);
}
int indexAdjust = 1;
for (y = 0; y < BufferHt; y++)
{
n = y + fOffset;
colorIdx = ((n + indexAdjust) % blockHt) / barHt;
//we need the integer division here to make things work
double colorPosition = ((double)(n + indexAdjust) / barHt) - ((n + indexAdjust) / barHt);
Color c = Colors[colorIdx].GetColorAt(colorPosition);
var hsv = HSV.FromRGB(c);
if (Highlight && (n + indexAdjust) % barHt == 0) hsv.S = 0.0f;
if (Show3D) hsv.V *= (float)(barHt - (n + indexAdjust) % barHt - 1) / barHt;
hsv.V = hsv.V * LevelCurve.GetValue(GetEffectTimeIntervalPosition(frame) * 100) / 100;
switch (Direction)
{
case BarDirection.Down:
case BarDirection.AlternateDown:
// down
for (x = 0; x < BufferWi; x++)
{
frameBuffer.SetPixel(x, y, hsv);
}
break;
case BarDirection.Expand:
// expand
if (y <= halfHt)
{
for (x = 0; x < BufferWi; x++)
{
frameBuffer.SetPixel(x, y, hsv);
frameBuffer.SetPixel(x, BufferHt - y - 1, hsv);
}
}
break;
case BarDirection.Compress:
// compress
if (y >= halfHt)
{
for (x = 0; x < BufferWi; x++)
{
frameBuffer.SetPixel(x, y, hsv);
frameBuffer.SetPixel(x, BufferHt - y - 1, hsv);
}
}
break;
default:
// up & AlternateUp
for (x = 0; x < BufferWi; x++)
{
frameBuffer.SetPixel(x, BufferHt - y - 1, hsv);
}
break;
}
}
}
else
{
int barWi = BufferWi / barCount+1;
if (barWi < 1) barWi = 1;
int halfWi = BufferWi / 2;
int blockWi = colorcnt * barWi;
if (blockWi < 1) blockWi = 1;
int fOffset = (int)(position * blockWi * Repeat);
if (Direction > BarDirection.AlternateDown)
{
fOffset = (int)(Math.Floor(position * barCount) * barWi);
}
for (x = 0; x < BufferWi; x++)
{
n = x + fOffset;
colorIdx = ((n + 1) % blockWi) / barWi;
//we need the integer division here to make things work
double colorPosition = ((double)(n + 1) / barWi) - ((n + 1) / barWi);
Color c = Colors[colorIdx].GetColorAt( colorPosition );
var hsv = HSV.FromRGB(c);
if (Highlight && n % barWi == 0) hsv.S = 0.0f;
if (Show3D) hsv.V *= (float)(barWi - n % barWi - 1) / barWi;
hsv.V = hsv.V * LevelCurve.GetValue(GetEffectTimeIntervalPosition(frame) * 100) / 100;
switch (Direction)
{
case BarDirection.Right:
case BarDirection.AlternateRight:
// right
for (y = 0; y < BufferHt; y++)
{
frameBuffer.SetPixel(BufferWi - x - 1, y, hsv);
}
break;
case BarDirection.HExpand:
// H-expand
if (x <= halfWi)
{
for (y = 0; y < BufferHt; y++)
{
frameBuffer.SetPixel(x, y, hsv);
frameBuffer.SetPixel(BufferWi - x - 1, y, hsv);
}
}
break;
case BarDirection.HCompress:
// H-compress
if (x >= halfWi)
{
for (y = 0; y < BufferHt; y++)
{
frameBuffer.SetPixel(x, y, hsv);
frameBuffer.SetPixel(BufferWi - x - 1, y, hsv);
}
}
break;
default:
// left & AlternateLeft
for (y = 0; y < BufferHt; y++)
{
frameBuffer.SetPixel(x, y, hsv);
}
break;
}
}
}
}
protected abstract void RenderEffect(int frameNum, ref PixelFrameBuffer frameBuffer);
protected override void RenderEffect(int frame, ref PixelFrameBuffer frameBuffer)
{
if (_image == null) return;
const int speedfactor = 4;
double position = (GetEffectTimeIntervalPosition(frame) * Speed) % 1;
double level = LevelCurve.GetValue(GetEffectTimeIntervalPosition(frame) * 100) / 100;
CalculateImageNumberByPosition(position);
_image.SelectActiveFrame(_dimension,(int) _currentGifImageNum);
_scaledImage = ScaleToGrid ? ScaleImage(_image, BufferWi, BufferHt) : ScaleImage(_image, _image.Width * ScalePercent / 100, _image.Height * ScalePercent / 100);
_fp = new FastPixel.FastPixel(_scaledImage);
int imgwidth = _fp.Width;
int imght = _fp.Height;
int yoffset = (BufferHt + imght) / 2;
int xoffset = (imgwidth - BufferWi) / 2;
int state = Speed * frame;
int xOffsetAdj = XOffset*BufferWi/100;
int yOffsetAdj = YOffset*BufferHt/100;
switch (Type)
{
case EffectType.RenderPicturePeekaboo0:
case EffectType.RenderPicturePeekaboo180:
//Peek a boo
yoffset = -(BufferHt) + (int)((BufferHt+5)*position*2);
if (yoffset > 10)
{
yoffset = -yoffset + 10; //reverse direction
}
else if (yoffset >= -1)
{
yoffset = -1; //pause in middle
}
break;
case EffectType.RenderPictureWiggle:
if (position >= 0.5)
{
xoffset += (int)(BufferWi * ((1.0 - position) * 2.0 - 0.5));
}
else
{
xoffset += (int)(BufferWi * (position * 2.0 - 0.5));
}
break;
case EffectType.RenderPicturePeekaboo90: //peekaboo 90
case EffectType.RenderPicturePeekaboo270: //peekaboo 270
if (Orientation == StringOrientation.Vertical)
{
yoffset = (imght - BufferWi)/2; //adjust offsets for other axis
}
else
{
yoffset = (imgwidth - BufferHt) / 2; //adjust offsets for other axis
}
if (Orientation == StringOrientation.Vertical)
{
xoffset = -(BufferHt) + (int) ((BufferHt + 5)*position*2);
}
else
{
xoffset = -(BufferWi) + (int)((BufferWi + 5) * position * 2);
}
if (xoffset > 10)
{
xoffset = -xoffset + 10; //reverse direction
}
else if (xoffset >= -1)
{
xoffset = -1; //pause in middle
}
break;
}
_fp.Lock();
for (int x = 0; x < imgwidth; x++)
{
for (int y = 0; y < imght; y++)
{
//if (!image.IsTransparent(x,y))
Color color = _fp.GetPixel(x, y);
if (color != Color.Transparent)
{
var hsv = HSV.FromRGB(color);
hsv.V = hsv.V * level;
switch (Type)
{
case EffectType.RenderPictureLeft:
// left
int leftX = x + (BufferWi - (int)(position * (imgwidth + BufferWi)));
frameBuffer.SetPixel(leftX + xOffsetAdj, yoffset - y + yOffsetAdj, hsv);
break;
case EffectType.RenderPictureRight:
// right
int rightX = x + -imgwidth + (int)(position * (imgwidth + BufferWi));
frameBuffer.SetPixel(rightX + xOffsetAdj, yoffset - y + yOffsetAdj, hsv);
break;
case EffectType.RenderPictureUp:
// up
int upY = (int)((imght + BufferHt) *position) - y;
frameBuffer.SetPixel(x - xoffset + xOffsetAdj, upY + yOffsetAdj, hsv);
break;
case EffectType.RenderPictureDown:
// down
int downY = (BufferHt + imght-1) - (int)((imght + BufferHt) * position) - y;
frameBuffer.SetPixel(x - xoffset + xOffsetAdj, downY+yOffsetAdj, hsv);
break;
case EffectType.RenderPictureUpleft:
int upLeftY = (int)((imght + BufferHt) * position) - y;
frameBuffer.SetPixel(Convert.ToInt32(x + BufferWi - (state % ((imgwidth + BufferWi) * speedfactor)) / speedfactor) + xOffsetAdj, upLeftY+yOffsetAdj, hsv);
break; // up-left
case EffectType.RenderPictureDownleft:
int downLeftY = BufferHt + imght - (int)((imght + BufferHt) * position) - y;
frameBuffer.SetPixel(Convert.ToInt32(x + BufferWi - (state % ((imgwidth + BufferWi) * speedfactor)) / speedfactor) + xOffsetAdj, downLeftY+yOffsetAdj, hsv);
break; // down-left
case EffectType.RenderPictureUpright:
int upRightY = (int)((imght + BufferHt) * position) - y;
frameBuffer.SetPixel(Convert.ToInt32(x + (state % ((imgwidth + BufferWi) * speedfactor)) / speedfactor - imgwidth)+xOffsetAdj, upRightY+yOffsetAdj, hsv);
break; // up-right
case EffectType.RenderPictureDownright:
int downRightY = BufferHt + imght - (int)((imght + BufferHt) * position) - y;
frameBuffer.SetPixel(Convert.ToInt32(x + (state % ((imgwidth + BufferWi) * speedfactor)) / speedfactor - imgwidth) + xOffsetAdj, downRightY+yOffsetAdj, hsv);
break; // down-right
case EffectType.RenderPicturePeekaboo0:
//Peek a boo
frameBuffer.SetPixel(x - xoffset + xOffsetAdj, BufferHt + yoffset - y+yOffsetAdj, hsv);
break;
case EffectType.RenderPictureWiggle:
frameBuffer.SetPixel(x + xoffset + xOffsetAdj, yoffset - y + yOffsetAdj, hsv);
break;
case EffectType.RenderPicturePeekaboo90:
frameBuffer.SetPixel(BufferWi + xoffset - y + xOffsetAdj, x - yoffset + yOffsetAdj, hsv);
break;
case EffectType.RenderPicturePeekaboo180:
frameBuffer.SetPixel(x - xoffset + xOffsetAdj, y - yoffset + yOffsetAdj, hsv);
break;
case EffectType.RenderPicturePeekaboo270:
frameBuffer.SetPixel(y - xoffset + xOffsetAdj, BufferHt + yoffset - x + yOffsetAdj, hsv);
break;
default:
// no movement - centered
frameBuffer.SetPixel(x - xoffset + xOffsetAdj, yoffset - y + yOffsetAdj, hsv);
break;
}
}
}
}
_fp.Unlock(false);
_fp.Dispose();
_scaledImage.Dispose();
}
protected override void RenderEffect(int frame, ref PixelFrameBuffer frameBuffer)
{
if (StringCount == 1) return;
var mod100 = (Speed*frame % (101 - Explosions) * 20);
HSV hsv;
if (mod100 == 0)
{
var x25 = (int)(BufferWi * 0.25);
var x75 = (int)(BufferWi * 0.75);
var y25 = (int)(BufferHt * 0.25);
var y75 = (int)(BufferHt * 0.75);
var startX = x25 + (Rand() % (x75 - x25));
var startY = y25 + (Rand() % (y75 - y25));
// Create new bursts
hsv = Colors.Count > 0 ? HSV.FromRGB(Colors[Rand() % Colors.Count]) : HSV.FromRGB(Color.White);
int idxFlakes = 0;
for (int i = 0; i < Particles; i++)
{
do
{
idxFlakes = (idxFlakes + 1) % MaxFlakes;
} while (_fireworkBursts[idxFlakes].Active);
_fireworkBursts[idxFlakes].Reset(startX, startY, true, Velocity, hsv);
}
}
else
{
for (int i = 0; i < MaxFlakes; i++)
{
// ... active flakes:
if (_fireworkBursts[i].Active)
{
// Update position
_fireworkBursts[i].X += _fireworkBursts[i].Dx;
_fireworkBursts[i].Y +=
(float)(-_fireworkBursts[i].Dy - _fireworkBursts[i].Cycles * _fireworkBursts[i].Cycles / 10000000.0);
// If this flake run for more than maxCycle, time to switch it off
_fireworkBursts[i].Cycles += 20;
if (10000 == _fireworkBursts[i].Cycles) // if (10000 == _fireworkBursts[i]._cycles)
{
_fireworkBursts[i].Active = false;
continue;
}
// If this flake hit the earth, time to switch it off
if (_fireworkBursts[i].Y >= BufferHt)
{
_fireworkBursts[i].Active = false;
continue;
}
// Draw the flake, if its X-pos is within frame
if (_fireworkBursts[i].X >= 0.0 && _fireworkBursts[i].X < BufferWi)
{
// But only if it is "under" the roof!
if (_fireworkBursts[i].Y >= 0.0)
{
// sean we need to set color here
}
}
else
{
// otherwise it just got outside the valid X-pos, so switch it off
_fireworkBursts[i].Active = false;
}
}
}
}
double position = GetEffectTimeIntervalPosition(frame);
double level = LevelCurve.GetValue(position * 100) / 100;
for (int i = 0; i < 1000; i++)
{
if (_fireworkBursts[i].Active)
{
var v = (float)(((ParticalFade * 10.0) - _fireworkBursts[i].Cycles) / (ParticalFade * 10.0));
if (v < 0) v = 0.0f;
hsv = _fireworkBursts[i].HSV;
hsv.V = v*level;
frameBuffer.SetPixel((int)_fireworkBursts[i].X, (int)_fireworkBursts[i].Y, hsv);
}
}
}
protected override void RenderEffect(int effectFrame, ref PixelFrameBuffer frameBuffer)
{
int repeat = Repeat;
switch (ButterflyType)
{
case ButterflyType.Type1 :
case ButterflyType.Type5:
repeat = Repeat*3;
break;
case ButterflyType.Type4:
repeat = Repeat*6;
break;
}
double h=0.0;
int maxframe=BufferHt;
double position = (GetEffectTimeIntervalPosition(effectFrame) * Iterations) % 1;
int curState = (int)(TimeSpan.TotalMilliseconds*position*repeat);
int frame = (BufferHt * curState / (int)TimeSpan.TotalMilliseconds) % maxframe;
double offset=curState/TimeSpan.TotalMilliseconds;
if(Direction==Direction.Forward) offset = -offset;
for (int x=0; x<BufferWi; x++)
{
int y;
for (y=0; y<BufferHt; y++)
{
double n;
double x1;
double y1;
double f;
int d;
int x0;
int y0;
switch (ButterflyType)
{
case ButterflyType.Type1:
// http://mathworld.wolfram.com/ButterflyFunction.html
n = Math.Abs((x*x - y*y) * Math.Sin(offset + ((x+y)*pi2 / (BufferHt+BufferWi))));
d = x*x + y*y;
// This section is to fix the colors on pixels at {0,1} and {1,0}
x0=x+1;
y0=y+1;
if((x==0 && y==1))
{
n = Math.Abs((x*x - y0*y0) * Math.Sin (offset + ((x+y0)*pi2 / (BufferHt+BufferWi))));
d = x*x + y0*y0;
}
if((x==1 && y==0))
{
n = Math.Abs((x0*x0 - y*y) * Math.Sin (offset + ((x0+y)*pi2 / (BufferHt+BufferWi))));
d = x0*x0 + y*y;
}
// end of fix
h=d>0.001 ? n/d : 0.0;
break;
case ButterflyType.Type2:
f=(frame < maxframe/2) ? frame+1 : maxframe - frame;
x1=(x -BufferWi/2.0)/f;
y1=(y-BufferHt/2.0)/f;
h=Math.Sqrt(x1*x1+y1*y1);
break;
case ButterflyType.Type3:
f=(frame < maxframe/2) ? frame+1 : maxframe - frame;
f=f*0.1+BufferHt/60.0;
x1 = (x-BufferWi/2.0)/f;
y1 = (y-BufferHt/2.0)/f;
h=Math.Sin(x1) * Math.Cos(y1);
break;
case ButterflyType.Type4:
// http://mathworld.wolfram.com/ButterflyFunction.html
n = ((x*x - y*y) * Math.Sin (offset + ((x+y)*pi2 / (BufferHt+BufferWi))));
d = x*x + y*y;
// This section is to fix the colors on pixels at {0,1} and {1,0}
x0=x+1;
y0=y+1;
if((x==0 && y==1))
{
n = ((x*x - y0*y0) * Math.Sin (offset + ((x+y0)*pi2 / (BufferHt+BufferWi))));
d = x*x + y0*y0;
}
if((x==1 && y==0))
{
n = ((x0*x0 - y*y) * Math.Sin (offset + ((x0+y)*pi2 / (BufferHt+BufferWi))));
d = x0*x0 + y*y;
}
// end of fix
h=d>0.001 ? n/d : 0.0;
var fractpart = h - (Math.Floor(h));
h=fractpart;
if(h<0) h=1.0+h;
break;
case ButterflyType.Type5:
// http://mathworld.wolfram.com/ButterflyFunction.html
n = Math.Abs((x*x - y*y) * Math.Sin (offset + ((x+y)*pi2 / (BufferHt*BufferWi))));
d = x*x + y*y;
// This section is to fix the colors on pixels at {0,1} and {1,0}
x0=x+1;
y0=y+1;
if((x==0 && y==1))
{
n = Math.Abs((x*x - y0*y0) * Math.Sin (offset + ((x+y0)*pi2 / (BufferHt*BufferWi))));
d = x*x + y0*y0;
}
if((x==1 && y==0))
{
n = Math.Abs((x0*x0 - y*y) * Math.Sin (offset + ((x0+y)*pi2 / (BufferHt*BufferWi))));
d = x0*x0 + y*y;
}
// end of fix
h=d>0.001 ? n/d : 0.0;
break;
}
HSV hsv = new HSV(h, 1.0, 1.0);
double level = LevelCurve.GetValue(GetEffectTimeIntervalPosition(effectFrame) * 100) / 100;
if (BackgroundChunks <= 1 || (int)(h*BackgroundChunks) % BackgroundSkips != 0)
{
if (ColorScheme == ColorScheme.Gradient)
{
Color color = Color.GetColorAt(h);
hsv = HSV.FromRGB(color);
}
hsv.V = hsv.V * level;
frameBuffer.SetPixel(x, y, hsv);
}
}
}
}
protected override void RenderEffect(int frame, ref PixelFrameBuffer frameBuffer)
{
int colorcnt = Colors.Count();
int spiralCount = colorcnt * Repeat;
int deltaStrands = BufferWi / spiralCount;
int spiralThickness = (deltaStrands * Thickness / 100)+1;
int spiralGap = deltaStrands - spiralThickness;
int thicknessState = 0;
int spiralState = 0;
double position = (GetEffectTimeIntervalPosition(frame) * Speed)%1;
switch (Direction)
{
case SpiralDirection.Forward:
spiralState = (int)(position*BufferWi*10);
break;
case SpiralDirection.Backwards:
spiralState = (int)(position * BufferWi * -10);
break;
}
if (Grow && Shrink)
{
thicknessState = (int)(position <= 0.5 ? spiralGap * (position * 2) : spiralGap * ((1 - position) * 2));
}
else if (Grow)
{
thicknessState = (int)(spiralGap * position);
}
else if (Shrink)
{
thicknessState = (int)(spiralGap * (1.0 - position));
}
spiralThickness += thicknessState;
double level = LevelCurve.GetValue(GetEffectTimeIntervalPosition(frame) * 100) / 100;
for (int ns = 0; ns < spiralCount; ns++)
{
var strandBase = ns * deltaStrands;
int colorIdx = ns % colorcnt;
int thick;
for (thick = 0; thick < spiralThickness; thick++)
{
var strand = (strandBase + thick) % BufferWi;
int y;
for (y = 0; y < BufferHt; y++)
{
Color color;
var x = (strand + (spiralState / 10) + (y * Rotation / BufferHt)) % BufferWi;
if (x < 0) x += BufferWi;
if (Blend)
{
color = Colors[colorIdx].GetColorAt((double)(BufferHt - y - 1) / BufferHt);
}
else
{
color = Colors[colorIdx].GetColorAt((double) thick/spiralThickness);
}
if (Show3D)
{
var hsv = HSV.FromRGB(color);
if (Rotation < 0)
{
hsv.V = (float)((double)(thick + 1) / spiralThickness);
}
else
{
hsv.V = (float)((double)(spiralThickness - thick) / spiralThickness);
}
hsv.V = hsv.V * level;
frameBuffer.SetPixel(x, y, hsv);
}
else
{
var hsv = HSV.FromRGB(color);
hsv.V = hsv.V * level;
frameBuffer.SetPixel(x, y, hsv);
}
}
}
}
}
