public void TestGetGuesses()
{
HierarchicalNGram gram = new HierarchicalNGram(3, 0.6f);
gram.AddData(new string[] { "b", "a" }, "c");
gram.AddData(new string[] { "b", "c" }, "c");
gram.AddData(new string[] { "b", "a" }, "a");
gram.AddData(new string[] { "a", "a" }, "d");
ICompiledGram compiledGram = gram.Compile();
string[] guesses = compiledGram.GetGuesses(new string[] { "b", "a" });
Assert.IsTrue(guesses.Contains("a"));
Assert.IsTrue(guesses.Contains("c"));
Assert.IsTrue(guesses.Contains("d"));
guesses = compiledGram.GetGuesses(new string[] { "b", "c" });
Assert.IsTrue(guesses.Contains("a"));
Assert.IsTrue(guesses.Contains("c"));
Assert.IsTrue(guesses.Contains("d"));
guesses = compiledGram.GetGuesses(new string[] { "a", "a" });
Assert.IsTrue(guesses.Contains("a"));
Assert.IsTrue(guesses.Contains("c"));
Assert.IsTrue(guesses.Contains("d"));
}
public string[] GetGuesses(string[] inData)
{
HashSet <string> seenGuesses = new HashSet <string>();
List <string> guesses = new List <string>();
int length = inData.Length;
for (int i = CompiledGrammars.Length - 1; i >= 0; --i)
{
ICompiledGram gram = CompiledGrammars[i];
int n = gram.GetN() - 1;
ArraySegment <string> segment = new ArraySegment <string>(inData, length - n, n);
string[] grammarGuesses = gram.GetGuesses(segment.ToArray());
foreach (string guess in grammarGuesses)
{
if (seenGuesses.Contains(guess) == false)
{
seenGuesses.Add(guess);
guesses.Add(guess);
}
}
}
return(guesses.ToArray());
}
private Tuple <List <string>, List <string> > GetColumnsSemiGuaranteed(ICompiledGram compiled, ICompiledGram simpleCompiled)
{
List <string> columns;
List <string> simplified;
if (simplifiedGram == null)
{
columns = NGramGenerator.Generate(compiled, startInput, size, includeStart: false);
simplified = LevelParser.BreakColumnsIntoSimplifiedTokens(
columns,
game);
}
else
{
simplified = NGramGenerator.GenerateBestAttempt(
simpleCompiled,
LevelParser.BreakColumnsIntoSimplifiedTokens(startInput, game),
size,
maxAttempts);
Games localGame = game;
columns = NGramGenerator.GenerateRestricted(
compiled,
startInput,
simplified,
(inColumn) =>
{
return(LevelParser.ClassifyColumn(inColumn, localGame));
},
includeStart: false);
}
return(new Tuple <List <string>, List <string> >(columns, simplified));
}
public CompiledHierarchicalNGram(HierarchicalNGram hierarchicalGram)
{
weightMultiplier = hierarchicalGram.CompiledMemoryUpdate;
CompiledGrammars = new ICompiledGram[hierarchicalGram.N];
Weights = new float[hierarchicalGram.N];
n = hierarchicalGram.N;
float weightSum = 0f;
float currentWeight = 1f;
for (int grammarSize = hierarchicalGram.N - 1; grammarSize >= 0; --grammarSize)
{
CompiledGrammars[grammarSize] = hierarchicalGram.Grammars[grammarSize].Compile();
currentWeight *= weightMultiplier;
weightSum += currentWeight;
Weights[grammarSize] = currentWeight;
}
for (int i = 0; i < Weights.Length; ++i)
{
Weights[i] /= weightSum;
}
}
public void TestGetGuesses()
{
BackOffNGram gram = new BackOffNGram(3, 0.6f);
gram.AddData(new string[] { "b", "a" }, "a");
gram.AddData(new string[] { "b", "a" }, "c");
gram.AddData(new string[] { "b", "c" }, "c");
gram.AddData(new string[] { "a", "a" }, "d");
ICompiledGram compiledGram = gram.Compile();
string[] guesses = compiledGram.GetGuesses(new string[] { "b", "a" });
Assert.AreEqual(4, guesses.Length);
Assert.IsTrue(guesses.Contains("a"));
Assert.IsTrue(guesses.Contains("b"));
Assert.IsTrue(guesses.Contains("c"));
Assert.IsTrue(guesses.Contains("d"));
Assert.IsTrue(guesses[0] == "a" || guesses[0] == "c");
Assert.IsTrue(guesses[1] == "a" || guesses[1] == "c");
Assert.AreNotEqual(guesses[0], guesses[1]);
Assert.IsTrue(guesses[2] == "b" || guesses[2] == "d");
Assert.IsTrue(guesses[3] == "b" || guesses[3] == "d");
Assert.AreNotEqual(guesses[2], guesses[3]);
guesses = compiledGram.GetGuesses(new string[] { "b", "c" });
Assert.AreEqual(4, guesses.Length);
Assert.IsTrue(guesses.Contains("a"));
Assert.IsTrue(guesses.Contains("b"));
Assert.IsTrue(guesses.Contains("c"));
Assert.IsTrue(guesses.Contains("d"));
Assert.AreEqual("c", guesses[0]);
Assert.IsTrue(guesses[1] == "a" || guesses[1] == "b" || guesses[1] == "d");
Assert.IsTrue(guesses[2] == "a" || guesses[2] == "b" || guesses[2] == "d");
Assert.IsTrue(guesses[3] == "a" || guesses[3] == "b" || guesses[3] == "d");
Assert.AreNotEqual(guesses[1], guesses[2]);
Assert.AreNotEqual(guesses[2], guesses[3]);
guesses = compiledGram.GetGuesses(new string[] { "a", "a" });
Assert.AreEqual(4, guesses.Length);
Assert.IsTrue(guesses.Contains("a"));
Assert.IsTrue(guesses.Contains("b"));
Assert.IsTrue(guesses.Contains("c"));
Assert.IsTrue(guesses.Contains("d"));
Assert.AreEqual("d", guesses[0]);
Assert.IsTrue(guesses[1] == "a" || guesses[1] == "b" || guesses[1] == "c");
Assert.IsTrue(guesses[2] == "a" || guesses[2] == "b" || guesses[2] == "c");
Assert.IsTrue(guesses[3] == "a" || guesses[3] == "b" || guesses[3] == "c");
Assert.AreNotEqual(guesses[1], guesses[2]);
Assert.AreNotEqual(guesses[2], guesses[3]);
}
private ICompiledGram GetCompiledUniGram(string[] inData, int size)
{
Assert.IsNotNull(inData);
Assert.AreEqual(size - 1, inData.Length);
if (cachedInData == inData)
{
return(cachedGram);
}
Dictionary <string, float> temp = null;
ICompiledGram tempGram;
UniGram gram = new UniGram();
int length = inData.Length;
Assert.IsTrue(length == size - 1);
for (int i = size - 1; i >= 0; --i)
{
tempGram = CompiledGrammars[i];
int n = tempGram.GetN() - 1;
if (n == 0)
{
temp = tempGram.GetValues(null);
}
else
{
ArraySegment <string> segment = new ArraySegment <string>(inData, length - n, n);
string[] input = segment.ToArray();
if (tempGram.HasNextStep(input))
{
temp = tempGram.GetValues(segment.ToArray());
}
}
if (temp != null)
{
foreach (KeyValuePair <string, float> kvp in temp)
{
if (gram.Grammar.ContainsKey(kvp.Key) == false)
{
gram.Grammar.Add(kvp.Key, kvp.Value * Weights[i]);
}
}
}
}
cachedGram = gram.Compile();;
cachedInData = inData;
return(cachedGram);
}
private void TestValues(ICompiledGram original, ICompiledGram clone, string[] key)
{
Assert.IsNotNull(original);
Assert.IsNotNull(clone);
Assert.AreEqual(original.GetN(), clone.GetN());
Dictionary <string, float> clonedValues = clone.GetValues(key);
foreach (KeyValuePair <string, float> kvp in original.GetValues(key))
{
Assert.IsTrue(clonedValues.ContainsKey(kvp.Key));
Assert.AreEqual(kvp.Value, clonedValues[kvp.Key]);
}
}
public void TestClone()
{
UniGram unigram = new UniGram();
unigram.AddData(null, "a");
unigram.AddData(null, "a");
unigram.AddData(null, "b");
CompiledUniGram compiledUnigram = new CompiledUniGram(unigram.Grammar);
ICompiledGram clone = compiledUnigram.Clone();
Assert.AreEqual(compiledUnigram.GetN(), clone.GetN());
Assert.AreEqual(compiledUnigram.GetValues(null), clone.GetValues(null));
}
private bool FoundValue(ICompiledGram compiledGram, string expected, string[] input, int iterations)
{
bool found = false;
for (int i = 0; i < iterations; ++i)
{
if (compiledGram.Get(input) == expected)
{
found = true;
break;
}
}
return(found);
}
public ICompiledGram Clone()
{
int length = CompiledGrammars.Length;
ICompiledGram[] compiledGrammars = new ICompiledGram[length];
float[] weights = new float[length];
for (int i = 0; i < length; ++i)
{
compiledGrammars[i] = CompiledGrammars[i].Clone();
weights[i] = Weights[i];
}
return(new CompiledBackOffNGram(weights, compiledGrammars, weightMultiplier));
}
private static List <string> GenerateTree(
ICompiledGram gram,
CircularQueue <string> prior,
int size,
int index,
List <string> acceptedTypes,
Func <string, string> classifier)
{
string[] guesses = gram.GetGuesses(prior.ToArray());
foreach (string guess in guesses)
{
if (classifier != null &&
!classifier(guess).Equals(acceptedTypes[index]))
{
continue;
}
CircularQueue <string> newPrior = prior.Clone();
newPrior.Add(guess);
if (size <= 1)
{
return(new List <string>()
{
guess
});
}
else if (gram.HasNextStep(newPrior.ToArray()))
{
List <string> returnVal = GenerateTree(
gram,
newPrior,
size - 1,
index + 1,
acceptedTypes,
classifier);
if (returnVal != null)
{
returnVal.Insert(0, guess);
return(returnVal);
}
}
}
return(null);
}
public void TestSequenceProbability()
{
HierarchicalNGram gram = new HierarchicalNGram(3, 0.9f);
Assert.AreEqual(
0,
gram.Compile().SequenceProbability(new string[] { "a", "b", "c" }));
double denominator = 0.9 + 0.81 + 0.729;
double triWeight = 0.9 / denominator;
double biWeight = 0.81 / denominator;
double uniweight = 0.729 / denominator;
UniGram gram1 = new UniGram();
gram1.AddData(null, "a");
gram1.AddData(null, "a");
gram1.AddData(null, "b");
NGram gram2 = new NGram(2);
gram2.AddData(new string[] { "a" }, "a");
gram2.AddData(new string[] { "a" }, "b");
NGram gram3 = new NGram(3);
gram3.AddData(new string[] { "a", "a" }, "b");
gram.AddData(new string[] { "a", "a" }, "b");
ICompiledGram c1 = gram1.Compile();
ICompiledGram c2 = gram2.Compile();
ICompiledGram c3 = gram3.Compile();
string[] input = new string[] { "a", "a", "b" };
double expected =
uniweight * c1.SequenceProbability(input) +
biWeight * c2.SequenceProbability(input) +
triWeight * c3.SequenceProbability(input);
double actual = gram.Compile().SequenceProbability(new string[] { "a", "a", "b" });
Assert.IsTrue(
Mathf.Approximately((float)expected, (float)actual),
$"Expected {expected} but received {actual}.");
}
public void TestGet()
{
HierarchicalNGram gram = new HierarchicalNGram(3, 0.6f);
gram.AddData(new string[] { "b", "a" }, "a");
gram.AddData(new string[] { "b", "a" }, "c");
gram.AddData(new string[] { "b", "c" }, "c");
gram.AddData(new string[] { "a", "a" }, "d");
ICompiledGram compiledGram = gram.Compile();
Assert.IsTrue(FoundValue(compiledGram, "c", new string[] { "b", "a" }, 1000));
Assert.IsTrue(FoundValue(compiledGram, "d", new string[] { "b", "a" }, 1000));
Assert.IsTrue(FoundValue(compiledGram, "a", new string[] { "b", "a" }, 1000));
Assert.IsTrue(FoundValue(compiledGram, "c", new string[] { "b", "c" }, 1000));
Assert.IsTrue(FoundValue(compiledGram, "d", new string[] { "b", "c" }, 1000));
Assert.IsTrue(FoundValue(compiledGram, "a", new string[] { "b", "c" }, 1000));
Assert.IsTrue(FoundValue(compiledGram, "c", new string[] { "a", "a" }, 1000));
Assert.IsTrue(FoundValue(compiledGram, "d", new string[] { "a", "a" }, 1000));
Assert.IsTrue(FoundValue(compiledGram, "a", new string[] { "a", "a" }, 1000));
Assert.IsTrue(FoundValue(compiledGram, "c", new string[] { "z", "d" }, 1000));
Assert.IsTrue(FoundValue(compiledGram, "d", new string[] { "z", "d" }, 1000));
Assert.IsTrue(FoundValue(compiledGram, "a", new string[] { "z", "d" }, 1000));
Assert.Throws <UnityEngine.Assertions.AssertionException>(() =>
{
compiledGram.Get(null);
});
Assert.Throws <UnityEngine.Assertions.AssertionException>(() =>
{
compiledGram.Get(new string[] { "z" });
});
Assert.Throws <UnityEngine.Assertions.AssertionException>(() =>
{
compiledGram.Get(new string[] { "z", "a", "d" });
});
}
public void TestGetGuesses()
{
NGram ngram = new NGram(3);
ICompiledGram compiledGram = ngram.Compile();
Assert.Throws <UnityEngine.Assertions.AssertionException>(() =>
{
compiledGram.GetGuesses(null);
});
Assert.Throws <UnityEngine.Assertions.AssertionException>(() =>
{
compiledGram.GetGuesses(new string[] { "b" });
});
Assert.Throws <UnityEngine.Assertions.AssertionException>(() =>
{
compiledGram.GetGuesses(new string[] { "b", "c", "d" });
});
string[] res = compiledGram.GetGuesses(new string[] { "b", "c" });
Assert.IsNotNull(res);
Assert.AreEqual(0, res.Length);
ngram.AddData(new string[] { "a", "b" }, "c");
string[] guesses = ngram.Compile().GetGuesses(new string[] { "a", "b" });
Assert.AreEqual(1, guesses.Length);
Assert.AreEqual("c", guesses[0]);
ngram.AddData(new string[] { "a", "b" }, "c");
ngram.AddData(new string[] { "a", "b" }, "d");
guesses = ngram.Compile().GetGuesses(new string[] { "a", "b" });
Assert.AreEqual(2, guesses.Length);
Assert.IsTrue(guesses.Contains("c"));
Assert.IsTrue(guesses.Contains("d"));
ngram.AddData(new string[] { "a", "e" }, "e");
guesses = ngram.Compile().GetGuesses(new string[] { "a", "e" });
Assert.AreEqual(1, guesses.Length);
Assert.AreEqual("e", guesses[0]);
}
/// <summary>
/// This is built around the idea that you can take input for an n-gram
/// and simplify it into categories. Obviously this function cannot
/// implement a generic classifier so it received a lambda which from
/// the user which handles the implementation specific details. This
/// generator will generate for that size output that only matches the
/// specific type specified by accepted type.
///
/// A possible extension would beo make acceptedType a list so that a user
/// can say that any of the following types are acceptable.
/// </summary>
/// <param name="grammar"></param>
/// <param name="startInput"></param>
/// <param name="size"></param>
/// <param name="acceptedTypes"></param>
/// <param name="classifier"></param>
/// <returns></returns>
public static List <string> GenerateRestricted(
ICompiledGram grammar,
List <string> startInput,
List <string> acceptedTypes,
Func <string, string> classifier,
bool includeStart = true)
{
Assert.IsNotNull(acceptedTypes);
Assert.IsTrue(acceptedTypes.Count > 0);
Assert.IsNotNull(classifier);
Assert.IsNotNull(grammar);
Assert.IsNotNull(startInput);
Assert.IsTrue(startInput.Count > grammar.GetN() - 1);
CircularQueue <string> queue = new CircularQueue <string>(grammar.GetN() - 1);
queue.AddRange(startInput);
List <string> outputLevel = GenerateTree(
grammar,
queue,
acceptedTypes.Count - startInput.Count,
startInput.Count,
acceptedTypes,
classifier);
if (includeStart)
{
List <string> level = null;
if (outputLevel != null)
{
level = new List <string>(startInput);
level.AddRange(outputLevel);
}
return(level);
}
return(outputLevel);
}
// @NOTE: this is used for simulation. Do not use outside of it.
public static List <string> GenerateBestAttempt(
ICompiledGram gram,
List <string> start,
int size,
int maxAttempts)
{
List <string> best = null;
for (int i = 0; i < maxAttempts; ++i)
{
CircularQueue <string> prior = new CircularQueue <string>(gram.GetN() - 1);
prior.AddRange(start);
List <string> output = new List <string>();
while (size > 0 && gram.HasNextStep(prior.ToArray()))
{
string nextToken = gram.Get(prior.ToArray());
output.Add(nextToken);
prior.Add(nextToken);
--size;
}
if (size == 0)
{
best = output;
break;
}
if (best == null)
{
best = output;
}
else if (output.Count > best.Count)
{
best = output;
}
}
return(best);
}
public string Get(string[] inData)
{
Assert.IsNotNull(inData);
Assert.AreEqual(n - 1, inData.Length);
int length = inData.Length;
for (int i = CompiledGrammars.Length - 1; i >= 0; --i)
{
ICompiledGram gram = CompiledGrammars[i];
int n = gram.GetN() - 1;
ArraySegment <string> segment = new ArraySegment <string>(inData, length - n, n);
string[] grammarGuesses = gram.GetGuesses(segment.ToArray());
if (grammarGuesses.Length > 0)
{
return(grammarGuesses[0]);
}
}
return(null);
}
/// <summary>
/// This will generate a list of output where it assumes that there is a
/// final state that can be reached. Like how a mario level always ends
/// with a flag. If there is no final state this will be slow and fail.
/// </summary>
/// <param name="grammar"></param>
/// <param name="startInput"></param>
/// <param name="minSize"></param>
/// <param name="maxSize"></param>
/// <returns></returns>
public static List <string> Generate(
ICompiledGram grammar,
List <string> startInput,
int size,
bool includeStart = true)
{
CircularQueue <string> queue = new CircularQueue <string>(grammar.GetN() - 1);
queue.AddRange(startInput);
List <string> outputLevel = GenerateTree(grammar, queue, size, 0, null, null);
if (includeStart)
{
List <string> level = new List <string>(startInput);
level.AddRange(outputLevel);
return(level);
}
return(outputLevel);
}
public void TestGetValues()
{
HierarchicalNGram uncompiled = new HierarchicalNGram(2, 0.6f);
ICompiledGram compiled = uncompiled.Compile();
Assert.Throws <UnityEngine.Assertions.AssertionException>(() =>
{
compiled.GetValues(null);
});
Assert.Throws <UnityEngine.Assertions.AssertionException>(() =>
{
compiled.GetValues(new string[] { "a", "b" });
});
Assert.Throws <UnityEngine.Assertions.AssertionException>(() =>
{
compiled.GetValues(new string[] { "a", "b", "c" });
});
Assert.AreEqual(0, compiled.GetValues(new string[] { "a" }).Keys.Count);
// Test with one entry a->c
uncompiled.AddData(new string[] { "a" }, "c");
compiled = uncompiled.Compile();
Assert.Throws <UnityEngine.Assertions.AssertionException>(() =>
{
compiled.GetValues(null);
});
Assert.Throws <UnityEngine.Assertions.AssertionException>(() =>
{
compiled.GetValues(new string[] { "a", "b" });
});
Assert.Throws <UnityEngine.Assertions.AssertionException>(() =>
{
compiled.GetValues(new string[] { "a", "b", "c" });
});
float uniWeight = (0.36f / (0.6f + 0.36f));
float biWeight = (0.6f / (0.6f + 0.36f));
Dictionary <string, float> values = compiled.GetValues(new string[] { "z" });
Assert.AreEqual(2, values.Keys.Count);
Assert.AreEqual(0.5f, values["a"]);
Assert.AreEqual(0.5f, values["c"]);
values = compiled.GetValues(new string[] { "a" });
Assert.AreEqual(2, values.Keys.Count);
Assert.AreEqual(0.5 * uniWeight, values["a"]);
Assert.AreEqual(biWeight + 0.5 * uniWeight, values["c"]);
// test with three entries a->c, b->c & b->d
uncompiled.AddData(new string[] { "b" }, "c");
uncompiled.AddData(new string[] { "b" }, "d");
compiled = uncompiled.Compile();
// in this case we haven't seen the prior "z" so we only have the
// unigram to work with
values = compiled.GetValues(new string[] { "z" });
Assert.AreEqual(4, values.Keys.Count);
Assert.IsTrue(values.ContainsKey("a")); // 1
Assert.IsTrue(values.ContainsKey("b")); // 2
Assert.IsTrue(values.ContainsKey("c")); // 2
Assert.IsTrue(values.ContainsKey("d")); // 1
Assert.AreEqual(1 / 6f, values["a"]);
Assert.AreEqual(2 / 6f, values["b"]);
Assert.AreEqual(2 / 6f, values["c"]);
Assert.AreEqual(1 / 6f, values["d"]);
// we have the prior a, so we are working with it and the unigram
values = compiled.GetValues(new string[] { "a" });
Assert.AreEqual(4, values.Keys.Count);
Assert.IsTrue(values.ContainsKey("a"));
Assert.IsTrue(values.ContainsKey("b"));
Assert.IsTrue(values.ContainsKey("c"));
Assert.IsTrue(values.ContainsKey("d"));
Assert.AreEqual(1 / 6f * uniWeight, values["a"]); // only unigram
Assert.AreEqual(2 / 6f * uniWeight, values["b"]); // only unigram
Assert.AreEqual(biWeight + 2 / 6f * uniWeight, values["c"]); // uni-gram and bi-gram
Assert.AreEqual(1 / 6f * uniWeight, values["d"]); // only unigram
// we have the prior b, so we are working with it and the unigram
values = compiled.GetValues(new string[] { "b" });
Assert.AreEqual(4, values.Keys.Count);
Assert.IsTrue(values.ContainsKey("a"));
Assert.IsTrue(values.ContainsKey("b"));
Assert.IsTrue(values.ContainsKey("c"));
Assert.IsTrue(values.ContainsKey("d"));
Assert.AreEqual(1 / 6f * uniWeight, values["a"]); // only unigram
Assert.AreEqual(2 / 6f * uniWeight, values["b"]); // only unigram
Assert.AreEqual(0.5f * biWeight + 2 / 6f * uniWeight, values["c"]); // uni-gram and bi-gram
Assert.AreEqual(0.5f * biWeight + 1 / 6f * uniWeight, values["d"]); // only unigram
}
// @NOTE: this is used for simulation. Do not use outside of it.
public static List <string> GenerateBestRestrictedAttempt(
ICompiledGram gram,
List <string> start,
List <string> acceptedTypes,
Func <string, string> classifier,
int maxAttempts)
{
List <string> best = null;
for (int attempt = 0; attempt < maxAttempts; ++attempt)
{
CircularQueue <string> prior = new CircularQueue <string>(gram.GetN() - 1);
prior.AddRange(start);
int acceptedTypeIndex = 0;
List <string> output = new List <string>();
string token;
int i;
while (acceptedTypeIndex < acceptedTypes.Count && gram.HasNextStep(prior.ToArray()))
{
string[] tokens = gram.GetGuesses(prior.ToArray());
string nextToken = null;
string acceptedType = acceptedTypes[acceptedTypeIndex];
for (i = 0; i < tokens.Length; ++i)
{
token = tokens[i];
if (classifier.Invoke(token).Equals(acceptedType))
{
nextToken = token;
}
}
if (nextToken != null)
{
output.Add(nextToken);
prior.Add(nextToken);
acceptedTypeIndex += 1;
}
else
{
break;
}
}
if (output.Count == acceptedTypes.Count)
{
best = output;
break;
}
if (best == null)
{
best = output;
}
else if (output.Count > best.Count)
{
best = output;
}
}
return(best);
}
private bool GenerateLevel()
{
List <List <char> > level = new List <List <char> >();
if (blackBoard.ConfigUI.Config.UsingSimplifiedNGram)
{
ICompiledGram compiledGram = simpleGrammar.Compile();
int levelIndex = levelColumns.RandomIndex();
List <string> simpleInput = simplifiedLevelColumns[levelIndex].GetRange
(0,
blackBoard.ConfigUI.Config.N + 7);
blackBoard.LevelColumns = levelColumns[levelIndex].GetRange(
0,
blackBoard.ConfigUI.Config.N + 7);
blackBoard.SimpleLevelColumns = NGramGenerator.Generate(
compiledGram,
simpleInput,
blackBoard.ConfigUI.Config.LevelSize);
compiledGram = grammar.Compile();
blackBoard.LevelColumns = NGramGenerator.GenerateRestricted(
compiledGram,
blackBoard.LevelColumns,
blackBoard.SimpleLevelColumns,
(inColumn) =>
{
return(LevelParser.ClassifyColumn(
inColumn,
blackBoard.ConfigUI.Config.Game));
});
}
else
{
ICompiledGram compiledGram = grammar.Compile();
blackBoard.LevelColumns = NGramGenerator.Generate(
compiledGram,
levelColumns.RandomValue().GetRange(0, blackBoard.ConfigUI.Config.N + 7),
blackBoard.ConfigUI.Config.LevelSize);
}
bool generationWorked = blackBoard.LevelColumns != null;
if (generationWorked)
{
foreach (string column in blackBoard.LevelColumns)
{
level.Add(new List <char>(column));
}
// add ending column to the level
char flagChar = Tile.playerOneFinish.ToChar();
List <char> endingColumn = new List <char>();
for (int i = 0; i < level[0].Count; ++i)
{
endingColumn.Add(flagChar);
}
level.Add(endingColumn);
blackBoard.LevelInfo = LevelLoader.Build(level, blackBoard.Tilemap, blackBoard.CameraFollow);
}
return(generationWorked);
}
public void Execute()
{
string keyDirectory = Path.Combine(basePath, $"{extension}_{gram.GetN()}");
if (Directory.Exists(keyDirectory) == false)
{
Directory.CreateDirectory(keyDirectory);
}
StreamWriter writer = File.CreateText($"{keyDirectory}.txt");
writer.WriteLine("Sequence_Probability,Perplexity,Linearity_JSON_Positions,Leniency");
ICompiledGram compiled = gram.Compile();
ICompiledGram simpleCompiled = simplifiedGram?.Compile();
for (int i = 0; i < numSimulations; ++i)
{
UtilityRandom.SetSeed(new DateTime().Millisecond);
Tuple <List <string>, List <string> > tuple;
if (gram as NGram == null)
{
tuple = GetColumnsBestGuess(compiled, simpleCompiled);
}
else
{
tuple = GetColumnsSemiGuaranteed(compiled, simpleCompiled);
}
List <string> columns = tuple.Item1;
List <string> simplified = tuple.Item2;
string[] columnsArray = columns.ToArray();
List <int> positions = LevelAnalyzer.Positions(columnsArray);
JsonArray jsonPositions = new JsonArray();
foreach (int pos in positions)
{
jsonPositions.Add(pos);
}
double sequenceProbability = compiled.SequenceProbability(columnsArray);
writer.Write($"{sequenceProbability},");
if (sequenceProbability == 0)
{
writer.Write($"0,");
}
else
{
writer.Write($"{1d/sequenceProbability},");
}
writer.Write($"{jsonPositions},");
writer.Write($"{LevelAnalyzer.Leniency(simplified.ToArray())}\n");
StreamWriter levelWriter = File.CreateText(Path.Combine(keyDirectory, $"{i}.txt"));
levelWriter.Write(string.Join("\n", columnsArray));
levelWriter.Flush();
levelWriter.Close();
if (i % 200 == 0)
{
writer.Flush();
}
}
writer.Flush();
writer.Close();
}
public void TestGetValues()
{
BackOffNGram uncompiled = new BackOffNGram(2, 0.6f);
ICompiledGram compiled = uncompiled.Compile();
Assert.Throws <UnityEngine.Assertions.AssertionException>(() =>
{
compiled.GetValues(null);
});
Assert.Throws <UnityEngine.Assertions.AssertionException>(() =>
{
compiled.GetValues(new string[] { "a", "b" });
});
Assert.Throws <UnityEngine.Assertions.AssertionException>(() =>
{
compiled.GetValues(new string[] { "a", "b", "c" });
});
Assert.AreEqual(0, compiled.GetValues(new string[] { "a" }).Keys.Count);
// Test with one entry a->c
uncompiled.AddData(new string[] { "a" }, "c");
compiled = uncompiled.Compile();
Assert.Throws <UnityEngine.Assertions.AssertionException>(() =>
{
compiled.GetValues(null);
});
Assert.Throws <UnityEngine.Assertions.AssertionException>(() =>
{
compiled.GetValues(new string[] { "a", "b" });
});
Assert.Throws <UnityEngine.Assertions.AssertionException>(() =>
{
compiled.GetValues(new string[] { "a", "b", "c" });
});
float uniWeight = (0.36f / (0.6f + 0.36f));
float biWeight = (0.6f / (0.6f + 0.36f));
Dictionary <string, float> values = compiled.GetValues(new string[] { "z" });
Assert.AreEqual(2, values.Keys.Count);
Assert.AreEqual(0.5f, values["a"]);
Assert.AreEqual(0.5f, values["c"]);
values = compiled.GetValues(new string[] { "a" });
Assert.AreEqual(2, values.Keys.Count);
float expected = 0.5f * uniWeight / (0.5f * uniWeight + biWeight);
Assert.IsTrue(
Mathf.Approximately(expected, values["a"]),
$"Expected {expected} but received {values["a"]}.");
expected = biWeight / (0.5f * uniWeight + biWeight);
Assert.IsTrue(
Mathf.Approximately(expected, values["c"]),
$"Expected {expected} but received {values["c"]}.");
// test with three entries a->c, b->c & b->d
uncompiled.AddData(new string[] { "b" }, "c");
uncompiled.AddData(new string[] { "b" }, "d");
compiled = uncompiled.Compile();
// in this case we haven't seen the prior "z" so we only have the
// unigram to work with
values = compiled.GetValues(new string[] { "z" });
Assert.AreEqual(4, values.Keys.Count);
Assert.IsTrue(values.ContainsKey("a")); // 1
Assert.IsTrue(values.ContainsKey("b")); // 2
Assert.IsTrue(values.ContainsKey("c")); // 2
Assert.IsTrue(values.ContainsKey("d")); // 1
Assert.AreEqual(1 / 6f, values["a"]);
Assert.AreEqual(2 / 6f, values["b"]);
Assert.AreEqual(2 / 6f, values["c"]);
Assert.AreEqual(1 / 6f, values["d"]);
}
public void TestGet()
{
NGram ngram = new NGram(2);
ngram.AddData(new string[] { "b" }, "c");
ngram.AddData(new string[] { "b" }, "c");
ngram.AddData(new string[] { "b" }, "a");
ngram.AddData(new string[] { "b" }, "c");
ngram.AddData(new string[] { "a" }, "e");
ngram.AddData(new string[] { "a" }, "e");
ngram.AddData(new string[] { "a" }, "z");
ngram.AddData(new string[] { "a" }, "z");
ICompiledGram comipledGram = ngram.Compile();
bool seenA = false;
bool seenC = false;
bool seenE = false;
bool seenZ = false;
for (int i = 0; i < 500; ++i)
{
string val = comipledGram.Get(new string[] { "b" });
switch (val)
{
case "a":
seenA = true;
break;
case "c":
seenC = true;
break;
default:
Assert.Fail($"{val} should not be possible.");
break;
}
}
for (int i = 0; i < 500; ++i)
{
string val = comipledGram.Get(new string[] { "a" });
switch (val)
{
case "e":
seenE = true;
break;
case "z":
seenZ = true;
break;
default:
Assert.Fail($"{val} should not be possible.");
break;
}
}
// in theory, we could potentially not see one of these but it is very unlikely.
Assert.IsTrue(seenA);
Assert.IsTrue(seenC);
Assert.IsTrue(seenE);
Assert.IsTrue(seenZ);
Assert.Throws <UnityEngine.Assertions.AssertionException>(() =>
{
comipledGram.Get(null);
});
Assert.Throws <UnityEngine.Assertions.AssertionException>(() =>
{
comipledGram.Get(new string[] { "b", "c" });
});
Assert.Throws <UnityEngine.Assertions.AssertionException>(() =>
{
comipledGram.Get(new string[] { "b", "c", "d" });
});
Assert.Throws <UnityEngine.Assertions.AssertionException>(() =>
{
comipledGram.Get(new string[] { "z" });
});
}
