/// <summary>
/// Creates the full set of bolt segments between the start and end points. Based upon the
/// algorithm found at http://gamedevelopment.tutsplus.com/tutorials/how-to-generate-shockingly-good-2d-lightning-effects--gamedev-2681
/// by Michael Hoffman.
/// </summary>
/// <param name="source"></param>
/// <param name="dest"></param>
/// <returns></returns>
protected virtual List <CCPoint> CreateBolt(CCPoint source, CCPoint dest)
{
var results = new List <CCPoint>();
List <float> seglength = new List <float>();
CCPoint tangent = dest - source;
CCPoint normal = CCPoint.Normalize(new CCPoint(tangent.Y, -tangent.X));
float length = tangent.Length;
List <float> positions = new List <float>();
positions.Add(0);
for (int i = 0; i < length / 4; i++)
{
positions.Add(CCMacros.CCRandomBetween0And1());
}
positions.Sort();
CCPoint prevPoint = source;
float prevDisplacement = 0;
for (int i = 1; i < positions.Count; i++)
{
float pos = positions[i];
// used to prevent sharp angles by ensuring very close positions also have small perpendicular variation.
float scale = (length * m_Jaggedness) * (pos - positions[i - 1]);
// defines an envelope. Points near the middle of the bolt can be farther from the central line.
float envelope = pos > 0.95f ? 20f * (1f - pos) : 1f;
float displacement = -m_Sway + 2f * m_Sway * CCMacros.CCRandomBetween0And1();
displacement -= (displacement - prevDisplacement) * (1 - scale);
displacement *= envelope;
CCPoint point = source + tangent * pos + normal * displacement;
// Core segment
results.Add(prevPoint);
results.Add(point);
// Length of this segment
float ll = (point - prevPoint).Length;
seglength.Add(ll);
_TrackLength += ll;
// Continue to the next segment.
prevPoint = point;
prevDisplacement = displacement;
}
results.Add(prevPoint);
results.Add(dest);
_SegmentLengths = seglength.ToArray();
return(results);
}
public AtlasFastBitmap()
{
// Upper Label
for (int i = 0; i < 100; i++)
{
//char str[6] = {0};
string str;
//sprintf(str, "-%d-", i);
str = string.Format("-{0,d}-", i);
CCLabelBMFont label = new CCLabelBMFont(str, "fonts/bitmapFontTest.fnt");
AddChild(label);
CCSize s = CCDirector.SharedDirector.WinSize;
CCPoint p = new CCPoint(CCMacros.CCRandomBetween0And1() * s.Width, CCMacros.CCRandomBetween0And1() * s.Height);
label.Position = p;
label.AnchorPoint = new CCPoint(0.5f, 0.5f);
}
}