public SymbolString(SymbolString symString)
{
for (int i = 0; i < symString.Length(); i++)
{
this.symList.Add(new Symbol(symString.GetAt(i)));
}
}
// Increases the age of a symbol if necessary and applies the rules if there are any for that symbol
public SymbolString ApplyRules(SymbolString s)
{
SymbolString result = s; // the string to manipulate
for (int i = s.Length() - 1; i >= 0; i--) // back to front
{
Symbol key = result.GetAt(i); // the char to analyze
if (key.age >= 0 && key.age < Variables.GetMaxAge(vars, key))
{
key.age++;
}
else if(key.age >= 0)
{
Debug.Log("MAX AGE REACHED");
}
if (rules.ContainsKey(key)) // ensure the char has a rule
{
result.ReplaceAt(i, rules.GetValue(key)); // apply the rule
}
}
return result;
}
// Starts with a symbolstring from an lsystem and creates/updates Stem segments to match the symbolstring
public void CreateGameObject(int n)
{
if (n < numIterations)
{
if (lSystem != null)
{
SymbolString blueprint = lSystem.GetResult(n);
SymbolString result = blueprint; // The blueprint edited to include the id of the stem segment
Stack <Stem> stemStack = new Stack <Stem>();
float roll = 0;
float pitch = 0;
float yaw = 0;
Stem currentStem = root;
currentStem.stemPrefab = stemPrefab;
for (int i = 0; i < blueprint.Length(); i++)
{
Symbol sym = blueprint.GetAt(i);
switch (sym.character)
{
case 'F':
if (sym.id == -1)
{
pitch += Random.Range(-3f, 3f);
yaw += Random.Range(-3f, 3f);
roll += Random.Range(-3f, 3f);
Stem newStem = currentStem.AddStemSegment(sym.age, pitch, yaw, roll);
stemList.Add(newStem);
result.ReplaceAt(i, (SymbolString) new Symbol(sym.character, sym.age, stemList.Count - 1));
newStem.id = result.GetAt(i).id;
currentStem = newStem;
}
else
{
stemList[sym.id].UpdateStem(sym.age);
currentStem = stemList[sym.id];
}
pitch = 0;
yaw = 0;
roll = 0;
break;
case '&':
pitch -= lSystem.pitch;
break;
case '^':
pitch += lSystem.pitch;
break;
case '\\':
yaw -= lSystem.yaw;
break;
case '/':
yaw += lSystem.yaw;
break;
case '-':
roll -= lSystem.roll;
break;
case '+':
roll += lSystem.roll;
break;
case '[':
stemStack.Push(currentStem);
break;
case ']':
currentStem = stemStack.Pop();
break;
default:
break;
}
}
root.UpdateChildTransforms(0);
Debug.Log(string.Format("n({0}) = {1}", n, (string)result));
}
else
{
this.Start();
this.CreateGameObject(n);
}
}
}