protected override void RenderEffect(int frame, IPixelFrameBuffer frameBuffer)
{
double level = LevelCurve.GetValue(GetEffectTimeIntervalPosition(frame) * 100) / 100;
double blendLevel = BlendCurve.GetValue(GetEffectTimeIntervalPosition(frame) * 100) / 100;
double backgroundLevelCurve = BackgroundLevelCurve.GetValue(GetEffectTimeIntervalPosition(frame) * 100) / 100;
int x, y, mod, b;
float V;
int cycleLen = frame * Speed;
int pixelsPerBranch = (int)(0.5 + (double)BufferHt / Branches);
if (pixelsPerBranch == 0)
{
pixelsPerBranch = 1;
}
if (frame == _xLimit)
{
_treeWidth = 0;
_xLimit += BufferWi;
}
_treeWidth++;
for (y = 0; y < BufferHt; y++)
{
for (x = 0; x < BufferWi; x++)
{
mod = y % pixelsPerBranch;
if (mod == 0)
{
mod = pixelsPerBranch;
}
V = ToggleBlend //Fade between branches
? (float)(1 - (1.0 * mod / pixelsPerBranch) * (1 - blendLevel))
: (float)((1.0 * mod / pixelsPerBranch) * (blendLevel));
HSV hsv = HSV.FromRGB(BackgroundColor.GetColorAt((GetEffectTimeIntervalPosition(frame) * 100) / 100));
hsv.V = backgroundLevelCurve * V; // we have now set the color for the background tree
// $orig_rgbval=$rgb_val;
Branch = (int)((y - 1) / pixelsPerBranch);
if (_branchColor >= Colors.Count || Branch == 0)
{
_branchColor = 0;
}
_row = pixelsPerBranch - mod; // now row=0 is bottom of branch, row=1 is one above bottom
// mod = which pixel we are in the branch
// mod=1,row=pixels_per_branch-1 top picrl in branch
// mod=2, second pixel down into branch
// mod=pixels_per_branch,row=0 last pixel in branch
//
// row = 0, the $p is in the bottom row of tree
// row =1, the $p is in second row from bottom
b = (int)((cycleLen) / BufferWi) % Branches; // what branch we are on based on frame #
//
// b = 0, we are on bottomow row of tree during frames 1 to BufferWi
// b = 1, we are on second row from bottom, frames = BufferWi+1 to 2*BufferWi
// b = 2, we are on third row from bottome, frames - 2*BufferWi+1 to 3*BufferWi
M = (x % 6);
// m=0, 1sr strand
// m=1, 2nd strand
// m=5, last strand in 6 strand pattern
switch (ColorType)
{
case TreeColorType.Twinkle:
_colorIdx = _random.Next(0, Colors.Count);
break;
case TreeColorType.AlternatePixel:
_colorIdx = (x % Colors.Count);
break;
case TreeColorType.Static:
_colorIdx = _branchColor;
break;
case TreeColorType.Alternate:
break;
}
switch (BranchDirection)
{
case TreeBranchDirection.UpRight:
case TreeBranchDirection.DownRight:
case TreeBranchDirection.UpLeft:
case TreeBranchDirection.DownLeft:
if (Branch <= b && x <= _treeWidth && (((_row == 3 && (M == 0 || M == 5)) || ((_row == 2 && (M == 1 || M == 4)) || ((_row == 1 && (M == 2 || M == 3)))))))
{
hsv = HSV.FromRGB(Colors[_colorIdx].GetColorAt((GetEffectTimeIntervalPosition(frame) * 100) / 100));
}
break;
case TreeBranchDirection.Up:
case TreeBranchDirection.Down:
if (Branch <= b &&
(((_row == 3 && (M == 0 || M == 5)) || ((_row == 2 && (M == 1 || M == 4)) || ((_row == 1 && (M == 2 || M == 3)))))))
{
hsv = HSV.FromRGB(Colors[_colorIdx].GetColorAt((GetEffectTimeIntervalPosition(frame) * 100) / 100));
}
break;
case TreeBranchDirection.Left:
if ((BufferWi - x) <= _treeWidth && (((_row == 3 && (M == 0 || M == 5)) || ((_row == 2 && (M == 1 || M == 4)) || ((_row == 1 && (M == 2 || M == 3)))))))
{
hsv = HSV.FromRGB(Colors[_colorIdx].GetColorAt((GetEffectTimeIntervalPosition(frame) * 100) / 100));
}
break;
case TreeBranchDirection.Alternate:
if (Branch % 2 != 0)
{
if ((BufferWi - x) <= _treeWidth && (((_row == 3 && (M == 0 || M == 5)) || ((_row == 2 && (M == 1 || M == 4)) || ((_row == 1 && (M == 2 || M == 3)))))))
{
hsv = HSV.FromRGB(Colors[_colorIdx].GetColorAt((GetEffectTimeIntervalPosition(frame) * 100) / 100));
}
}
else
{
if (x <= _treeWidth && (((_row == 3 && (M == 0 || M == 5)) || ((_row == 2 && (M == 1 || M == 4)) || ((_row == 1 && (M == 2 || M == 3)))))))
{
hsv = HSV.FromRGB(Colors[_colorIdx].GetColorAt((GetEffectTimeIntervalPosition(frame) * 100) / 100));
}
}
break;
case TreeBranchDirection.Right:
if (x <= _treeWidth && (((_row == 3 && (M == 0 || M == 5)) || ((_row == 2 && (M == 1 || M == 4)) || ((_row == 1 && (M == 2 || M == 3)))))))
{
hsv = HSV.FromRGB(Colors[_colorIdx].GetColorAt((GetEffectTimeIntervalPosition(frame) * 100) / 100));
}
break;
case TreeBranchDirection.None:
if (((((_row == 3 && (M == 0 || M == 5)) || ((_row == 2 && (M == 1 || M == 4)) || ((_row == 1 && (M == 2 || M == 3))))))))
{
hsv = HSV.FromRGB(Colors[_colorIdx].GetColorAt((GetEffectTimeIntervalPosition(frame) * 100) / 100));
}
break;
}
hsv.V = hsv.V * level; //adjusts overall intensity
switch (BranchDirection)
{
case TreeBranchDirection.Down:
case TreeBranchDirection.DownRight:
frameBuffer.SetPixel(x, BufferHt - y, hsv);
break;
case TreeBranchDirection.UpLeft:
frameBuffer.SetPixel(BufferWi - x, y, hsv);
break;
case TreeBranchDirection.DownLeft:
frameBuffer.SetPixel(BufferWi - x, BufferHt - y, hsv);
break;
default:
frameBuffer.SetPixel(x, y, hsv);
break;
}
}
_colorIdx = (Branch % Colors.Count);
}
}
