protected override void RenderEffect(int frame, IPixelFrameBuffer frameBuffer)
{
double intervalPosFactor = GetEffectTimeIntervalPosition(frame) * 100;
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);
}
int h = (int)Height.GetValue(intervalPosFactor);
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 (CalculateHueShift(intervalPosFactor) > 0)
{
hsv.H = hsv.H + (CalculateHueShift(intervalPosFactor) / 100.0f);
}
hsv.V = hsv.V * LevelCurve.GetValue(intervalPosFactor) / 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, IPixelFrameBuffer frameBuffer)
{
double intervalPosFactor = GetEffectTimeIntervalPosition(frame) * 100;
double level = LevelCurve.GetValue(intervalPosFactor) / 100;
double hueShift = CalculateHueShift(intervalPosFactor);
int x, y;
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);
_fireBuffer[x] = r;
}
int h = (int)Height.GetValue(intervalPosFactor);
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;
}
}
_fireBuffer[y * maxWi + x] = newIndex;
}
}
for (y = 0; y < maxHt; y++)
{
for (x = 0; x < maxWi; x++)
{
var colorIndex = GetFireBuffer(x, y, maxWi, maxHt);
if (colorIndex == 0)
{
continue; // No point going any further if color index is 0 (Black). Significantly reduces render time.
}
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;
}
HSV hsv = FirePalette.GetColor(colorIndex);
if (hueShift > 0)
{
hsv.H = hsv.H + hueShift / 100.0f;
}
hsv.V *= level;
frameBuffer.SetPixel(xp, yp, hsv);
}
}
}
