public static WeightedRandomCollection <T> CreateWeightedBag <T>(T[] values, float initalWeight, IRandomGenerator randomGenerator = null)
{
var result = new WeightedRandomCollection <T>(randomGenerator);
foreach (var n in values)
{
result.Add(n, initalWeight);
}
return(result);
}
//
public WeightedRandomCollection <T> WeightedBag <T>(T[] values, float initalWeight)
{
var result = new WeightedRandomCollection <T>(this);
foreach (var n in values)
{
result.Add(n, initalWeight);
}
return(result);
}
public WeightedRandomCollection <T> WeightedBag <T>(T[] values, float[] initalWeights)
{
var result = new WeightedRandomCollection <T>(this);
for (var n = 0; n < values.Length; ++n)
{
result.Add(values[n], initalWeights[n]);
}
return(result);
}
//
public static WeightedRandomCollection <T> CreateWeightedBag <T>(IEnumerable <T> values, IEnumerable <float> initalWeights, IRandomGenerator randomGenerator = null)
{
var result = new WeightedRandomCollection <T>(randomGenerator);
using (var valueEnumerator = values.GetEnumerator())
using (var weightEnumerator = initalWeights.GetEnumerator())
{
while (valueEnumerator.MoveNext() && weightEnumerator.MoveNext())
{
result.Add(valueEnumerator.Current, weightEnumerator.Current);
}
}
return(result);
}
//Get a block that meets certain requirements.
LevelBlock GetPossibleLevelBlock(LevelBlockRequirements requirements)
{
WeightedRandomCollection<LevelBlock> possibleLevelBlocks = new WeightedRandomCollection<LevelBlock>();
//Check all level blocks and see which ones would meet the requirements.
foreach (LevelBlock levelBlock in levelBlocks)
{
if (levelBlock.MeetsRequirements(requirements))
possibleLevelBlocks.Add(levelBlock, levelBlock.AppearancePreference);
}
//If we've not found anything, return null.
if (possibleLevelBlocks.IsWriteOnly)
return null;
//Then return one.
return possibleLevelBlocks.Get();
}