/// <summary>Creates an approximate simulation of a distribution</summary>
/// <param name="curve">The mathematical function of the distribution(between min and max)</param>
/// <param name="min">The minimum possible value in this distribution</param>
/// <param name="max">The maximum possible value in this distribution</param>
/// <param name="precision">Increasing this will improve the accuracy of the generator at the cost of speed</param>
public Distribution(DistributionCurve curve, float min, float max, int precision)
{
#if DEBUG
// Input checks:
if (precision < 1)
{
Debug.LogError("Distribution constructor called with invalid precision: " + precision);
Debug.Break();
}
#endif
// Define the left starting point and the width of the bars in the bar graph.
this.min = min;
this.barWidth = (max - min) / precision;
// Precalculate a bar graph that will represent the distribution.
barHeights = new float[precision];
totalBarHeight = 0;
for (int i = 0; i < precision; i++)
{
// Find the input point at the middle of this bar on the graph.
float middle = (i + 0.5f) * barWidth;
// Use the distribution curve to get the height of the bar.
barHeights[i] = curve(middle);
totalBarHeight += barHeights[i];
}
}
/// <summary>Creates an approximate simulation of a distribution</summary>
/// <param name="curve">The mathematical function of the distribution(between min and max)</param>
/// <param name="min">The minimum possible value in this distribution</param>
/// <param name="max">The maximum possible value in this distribution</param>
public Distribution(DistributionCurve curve, float min, float max)
: this(curve, min, max, defaultPrecision)
{
}
/// <summary>Creates an approximate simulation of a distribution between 0 and 1</summary>
/// <param name="curve">The mathematical function of the distribution(between 0 and 1)</param>
public Distribution(DistributionCurve curve)
: this(curve, 0, 1)
{
}