/// <summary>
/// Randomly generates a task with the given grammar
/// </summary>
/// <param name="grammarName">The name of the grammar to generate the task</param>
/// <param name="tier">The maximum difficulty degree allowed to produce the task</param>
/// <returns></returns>
public Task GenerateTask(string grammarName, DifficultyDegree tier)
{
for (int i = 0; i < 3; ++i)
{
try
{
string taskPrototype = GetTaskPrototype(grammarName);
WildcardReplacer replacer = new WildcardReplacer(this, tier);
if (String.IsNullOrEmpty(taskPrototype))
{
return(null);
}
return(replacer.GetTask(taskPrototype));
}
catch
{
continue;
}
}
return(null);
}
/// <summary>
/// Randomly generates a task with the requested difficulty degree
/// </summary>
/// <param name="tier">The maximum difficulty degree allowed to produce the task</param>
/// <returns></returns>
public Task GenerateTask(DifficultyDegree tier)
{
for (int i = 0; i < 3; ++i)
{
try
{
TaskNode root = GetTaskPrototype(tier);
string taskPrototype = root.Render();
WildcardReplacer replacer = new WildcardReplacer(this, tier);
if (String.IsNullOrEmpty(taskPrototype))
{
return(null);
}
Task t = replacer.GetTask(taskPrototype);
t.Tree = root;
return(t);
}
catch
{
continue;
}
}
return(null);
}