// Parse the sentence, load symbol implementations and find the next module to execute.
// One module is executed at a time, and an internal pointer is adjusted to for the next iteration.
public bool ProcessNextModule(Module previous, Sentence sentence,
SerializableDictionary <char, GameObject> implementation, RuleSet rules, ParameterBundle bundle, bool baked)
{
if (dead)
{
return(false);
}
Profiler.BeginSample("LSystem.Module.ProcessNextModule");
GameObject module;
char symbol = '\0';
do
{
if (!sentence.HasNext())
{
sentence = rules.NextGeneration(sentence);
if (!bundle.Set("Sentence", sentence))
{
Debug.LogError("Cannot set 'Sentence' parameter in GetAndExecuteModule", gameObject);
}
int generation;
int iterations;
if (bundle.Get("Generation", out generation))
{
generation++;
if (bundle.Get("Iterations", out iterations))
{
if (generation > iterations)
{
//Max iterations reached.
return(false);
}
}
if (!bundle.Set("Generation", generation))
{
Debug.LogError("Cannot set 'Generation' parameter in GetAndExecuteModule", gameObject);
}
}
else
{
Debug.LogError("Cannot get 'Generation' parameter in GetAndExecuteModule", gameObject);
}
}
symbol = sentence.Next();
if (symbol == '\0')
{
return(false); //Sentence is empty! Caused if rules do not generate anything from previous
}
} while (!implementation.TryGetValue(symbol, out module));
KeyValuePair <GameObject, Sentence> newPair = new KeyValuePair <GameObject, Sentence>(module, sentence);
Profiler.EndSample();
ExecuteModule(previous, newPair, bundle, symbol, baked);
return(true);
}
/// <summary>
/// Merge multiple ParameterBundles into one. Note that parameters with the same key will override each other and parameters with the same key but different value will be ignored
/// </summary>
/// <param name="bundles"></param>
/// <returns></returns>
public static ParameterBundle Merge(List <ParameterBundle> bundles)
{
ParameterBundle merged = new ParameterBundle();
foreach (ParameterBundle bundle in bundles)
{
foreach (KeyValuePair <string, object> pair in bundle.parameters)
{
if (!merged.Set(pair.Key, pair.Value))
{
merged.Put(pair.Key, pair.Value);
}
}
}
return(merged);
}
// Encapsulates common functionality between Bake and Execute.
protected void AnyExecute(ParameterBundle bundle)
{
//try get relevant prams.
bool fatal = false;
Sentence sentence;
CharGameObjectDict implementations;
RuleSet rules;
if (!GetCoreParameters(bundle, out sentence, out implementations, out rules))
{
fatal = true;
}
// Perform rotation on transform based.
// Note that many rotations are not easily possible with this method. Needs to be improved.
Quaternion rotation;
if (bundle.Get("Rotation", out rotation))
{
//apply pitch yaw and roll to the rotation
rotation = rotation * Quaternion.Euler(new Vector3(Random.Range(eulerAnglesMin.x, eulerAnglesMax.x),
Random.Range(eulerAnglesMin.y, eulerAnglesMax.y),
Random.Range(eulerAnglesMin.z, eulerAnglesMax.z)));
bundle.Set("Rotation", rotation);
}
else
{
Debug.LogWarning("Default parameter 'Rotation' missing. Skipping Rotation", gameObject);
}
if (!fatal)
{
//Call next module
if (baked)
{
BakeNextModule(transform, sentence, implementations, rules, bundle);
}
else
{
EnqueueProcessNextModule(transform, sentence, implementations, rules, bundle);
}
}
Destroy(gameObject); //once rotation and next module clled we can destroy the object.
}