public void CreateRandomBeatmap(AudioAnalyzer analyzer)
{
if (!File.Exists(this.filePath))
{
Console.WriteLine("Error: File not found.(" + this.filePath + ")");
return;
}
if (beatmapOccupied)
{
Console.WriteLine("Error: Beatmap already occupied with HitObjects, Clear all objects before continuing");
return;
}
Console.WriteLine("Generating Random Beatmap. Appending to file..." + this.filePath);
using (var osuFile = new StreamWriter(this.filePath, true))
{
int numCircles = 0;
// Basic Beatmap Creation
var prevPoint = PlayField.GetRandomPointInside();
currentTimingPoint = (timingPoints.Count > 0) ? timingPoints[0] : null;
float timestamp = (float)offset;
// for (float timestamp = (float)offset; timestamp < songLength; timestamp += mpb)
while (timestamp < songLength)
{
Vector2 pos = Vector2.Zero;
float x = RandomHelper.Range(Beatmap.PlayField.Left, Beatmap.PlayField.Right + 1);
float y = RandomHelper.Range(Beatmap.PlayField.Top, Beatmap.PlayField.Bottom + 1);
bool newCombo = false;
if (currentTimingPoint != null)
{
currentTimingPoint = TimingPoint.UpdateCurrentTimingPoint((int)timestamp, timingPoints, currentTimingPoint);
}
//Gets a point on a circle whose center lies at the previous point.
do
{
float radius = RandomHelper.Range(30f, maxNoteDistance); //<---- This could be a function of bpm, i.e. time-distance relation between beats
pos = prevPoint + RandomHelper.OnCircle(prevPoint, radius);
} while (!PlayField.Contains(pos));
////EXAMPLE USE CASE
double threshold = Double.Parse("-10");
var peakData = analyzer.CreatePeakDataAt((int)timestamp, 10000);
Console.WriteLine(peakData.ToString());
if (peakData.value < threshold)
{
//Continue without adding a beat here if no sound was detected.
timestamp += AddTime(NoteDuration.Half);
continue;
}
////END EXAMPLE
// Determine if new Combo is needed
if (currentComboLength > comboChangeFlag)
{
newCombo = true;
currentComboLength = currentComboLength % comboChangeFlag;
}
if (currentBeat % beatsPerMeasure == 0)
{
// Generate a random slider.
var sliderType = EnumHelper.GetRandom <SliderCurveType>(); //sliderTypes[rnd.Next(0, 3)];
float sliderTimespan = (RandomHelper.NextFloat < 0.5f) ? difficulty.sliderTimestamp1 : difficulty.sliderTimestamp2;
string sliderData = GetSliderData(pos, (int)timestamp, HitObjectType.Slider,
HitObjectSoundType.None, sliderType, 1, sliderVelocity * currentTimingPoint.SliderVelocityMultiplier, RandomHelper.Range(minSliderCurves, maxSliderCurves + 1), sliderTimespan);
osuFile.WriteLine(sliderData);
numCircles++;
timestamp += AddTime(sliderTimespan * 2);
currentBeat += sliderTimespan * 2;
currentComboLength += sliderTimespan * 2;
}
else
{
HitObjectType hitType = (newCombo) ? HitObjectType.NormalNewCombo : HitObjectType.Normal;
// Test patterns!
if (RandomHelper.NextFloat < 0.12)
{
Triple triple = new Triple(PlayField.Center, (int)timestamp, HitObjectSoundType.None, prevPoint, mpb, difficulty);
osuFile.WriteLine(triple.SerializeForOsu());
currentComboLength += triple.totalLength;
timestamp += AddTime(triple.totalLength);
currentBeat += triple.totalLength;
prevPoint = PlayField.Center;
}
else
{
string circleData = GetHitCircleData(new Vector2(x, y), (int)timestamp, hitType,
HitObjectSoundType.None, prevPoint);
osuFile.WriteLine(circleData);
numCircles++;
currentComboLength += difficulty.baseCircleTimestamp;
timestamp += AddTime(difficulty.baseCircleTimestamp);
currentBeat += difficulty.baseCircleTimestamp;
prevPoint = new Vector2(x, y);
}
}
}
Console.WriteLine("Number of circles " + numCircles);
}
}
// Creates a random beatmap. This APPENDS to the current file.
// TODO: Need to make sure we are not overwriting other data, and starting from the correct location.
public void CreateRandomBeatmap()
{
if (!File.Exists(this.filePath))
{
Console.WriteLine("Error: File not found.(" + this.filePath + ")");
return;
}
Console.WriteLine("Generating Random Beatmap. Appending to file..." + this.filePath);
using (var osuFile = new StreamWriter(this.filePath, true))
{
int numCircles = 0;
// Basic Beatmap Creation
var prevPoint = Vector2.NegativeOne;
float timestamp = (float)offset;
// for (float timestamp = (float)offset; timestamp < songLength; timestamp += mpb)
while (timestamp < songLength)
{
float x = RandomHelper.Range(Beatmap.PlayField.Left, Beatmap.PlayField.Right + 1);
float y = RandomHelper.Range(Beatmap.PlayField.Top, Beatmap.PlayField.Bottom + 1);
bool newCombo = false;
// Determine if new Combo is needed
if (currentComboLength > comboChangeFlag)
{
newCombo = true;
currentComboLength = currentComboLength % comboChangeFlag;
}
Console.WriteLine("currentBeat" + currentBeat);
/*
* float getBeatType = RandomHelper.NextFloat;
* if (getBeatType < 0.05f)
* {
* timestamp += AddTime(NoteDuration.Quarter);
* currentBeat += NoteDuration.Quarter;
* continue;
* }
*/
if (currentBeat % beatsPerMeasure == 0)
{
// Generate a random slider. // Test Random Slider Durations
var sliderType = EnumHelper.GetRandom <SliderCurveType>();
HitObjectType hitType = (newCombo) ? HitObjectType.SliderNewCombo : HitObjectType.Slider;
float sliderTimespan = (RandomHelper.NextFloat < 0.5f) ? difficulty.sliderTimestamp1 : difficulty.sliderTimestamp2;
string sliderData = GetSliderData(new Vector2(x, y), (int)timestamp, hitType,
HitObjectSoundType.None, sliderType, 1, sliderVelocity, RandomHelper.Range(minSliderCurves, maxSliderCurves + 1), sliderTimespan);
osuFile.WriteLine(sliderData);
numCircles++;
timestamp += AddTime(sliderTimespan * 2);
currentBeat += sliderTimespan * 2;
currentComboLength += sliderTimespan * 2;
}
else
{
HitObjectType hitType = (newCombo) ? HitObjectType.NormalNewCombo : HitObjectType.Normal;
// Test patterns!
if (RandomHelper.NextFloat < 0.12)
{
Triple triple = new Triple(PlayField.Center, (int)timestamp, HitObjectSoundType.None, prevPoint, mpb, difficulty);
osuFile.WriteLine(triple.SerializeForOsu());
currentComboLength += triple.totalLength;
timestamp += AddTime(triple.totalLength);
currentBeat += triple.totalLength;
prevPoint = PlayField.Center;
}
else
{
string circleData = GetHitCircleData(new Vector2(x, y), (int)timestamp, hitType,
HitObjectSoundType.None, prevPoint);
osuFile.WriteLine(circleData);
numCircles++;
currentComboLength += difficulty.baseCircleTimestamp;
timestamp += AddTime(difficulty.baseCircleTimestamp);
currentBeat += difficulty.baseCircleTimestamp;
prevPoint = new Vector2(x, y);
}
}
// New Combo
}
Console.WriteLine("Number of circles " + numCircles);
}
}