public void Promote(TaskImplementation implementation)
{
label = implementation.memberInfo.Name;
parameters.Clear();
foreach (var p in implementation.parameterTypes)
{
Parameters_Add(new GUINodeParameter(p));
}
DefineType();
}
public static TaskImplementation[] Get(object[] implementers)
{
var tasks = new List <TaskImplementation>();
foreach (var implementer in implementers)
{
Task[] typeTasks = null;
var type = implementer.GetType();
if (taskCache.ContainsKey(type))
{
typeTasks = taskCache[type];
}
else
{
var typeTaskList = new List <Task>();
var members = implementer.GetType().GetMembers(bindingFlags);
foreach (var m in members)
{
var attributes = m.GetCustomAttributes(typeof(Task), true);
foreach (var attr in attributes)
{
var implementationAttribute = attr as Task;
if (implementationAttribute != null)
{
implementationAttribute._memberInfo = m;
typeTaskList.Add(implementationAttribute);
}
}
}
typeTasks = typeTaskList.ToArray();
taskCache[type] = typeTasks;
}
if (typeTasks != null)
{
foreach (var t in typeTasks)
{
var ti = new TaskImplementation();
ti.target = implementer;
ti.memberInfo = t._memberInfo;
tasks.Add(ti);
}
}
}
return(tasks.ToArray());
}
static bool Bind(BTTask task, TaskImplementation implementation)
{
bool bindingSucceeded = false;
var member = implementation.memberInfo;
var taskImplementer = implementation.target;
MethodInfo method = member as MethodInfo;
FieldInfo field = member as FieldInfo;
PropertyInfo property = member as PropertyInfo;
System.Action taskAction = null;
if (method != null)
{
object[] parameters = new object[task.i_parameters.Length];
var methodParameters = method.GetParameters();
for (int i = 0; i < parameters.Length; i++)
{
var enumParameter = task.i_parameters[i] as EnumParameter;
if (enumParameter != null)
{
parameters[i] = enumParameter.Parse(methodParameters[i].ParameterType);
}
else
{
parameters[i] = task.i_parameters[i];
}
}
if (method.ReturnType == typeof(void))
{
if (parameters.Length > 0)
{
taskAction = () => method.Invoke(taskImplementer, parameters);
}
else
{
taskAction = System.Delegate.CreateDelegate(typeof(System.Action), taskImplementer, method) as System.Action;
}
}
if (method.ReturnType == typeof(bool))
{
if (parameters.Length > 0)
{
taskAction = () => Task.current.Complete((bool)method.Invoke(taskImplementer, parameters));
}
else
{
var del = System.Delegate.CreateDelegate(typeof(System.Func <bool>), taskImplementer, method) as System.Func <bool>;
taskAction = () => Task.current.Complete(del());
}
}
}
if (field != null)
{
taskAction = () => Task.current.Complete((bool)field.GetValue(taskImplementer));
}
if (property != null)
{
taskAction = () => Task.current.Complete((bool)property.GetValue(taskImplementer, null));
}
if (taskAction != null)
{
task.m_boundObject = taskImplementer;
task.m_boundMember = member;
task.m_taskAction = taskAction;
task.m_boundState = BoundState.Bound;
bindingSucceeded = true;
}
return(bindingSucceeded);
}
public static void Bind(BTProgram program, object[] implementers)
{
// Get all the [Task]s.
var taskImplementations = TaskImplementation.Get(implementers);
// Find for each task the corresponding implementations.
var taskImplementationCandidates = new Dictionary <BTTask, List <TaskImplementation> >();
var tasks = program.tasks;
foreach (var task in tasks)
{
taskImplementationCandidates[task] = new List <TaskImplementation>();
foreach (var ti in taskImplementations)
{
if (ti.IsMatch(task))
{
taskImplementationCandidates[task].Add(ti);
}
}
}
// Check whether all the task are unambiguously defined.
var unimplementedTasks = new List <BTTask>();
var over_implementedTasks = new List <BTTask>();
foreach (var kv in taskImplementationCandidates)
{
var task = kv.Key;
var candidates = kv.Value;
if (candidates.Count == 0)
{
unimplementedTasks.Add(task);
}
if (candidates.Count > 1)
{
over_implementedTasks.Add(task);
}
}
// Generate eventual exceptions.
var exceptions = new List <System.Exception>();
if (unimplementedTasks.Count > 0)
{
int line = 0;
string path = null;
foreach (var task in unimplementedTasks)
{
var m = GetMethodSignatureString(task);
string msg = string.Format("The task `{0}' is not defined.\n", m);
msg += string.Format("\nA method as follow is expected:\n");
string tpl = taskTpl;
tpl = tpl.Replace("{!methodSignature}", m);
tpl = tpl.Replace("{!statusType}", "Status");
msg += tpl;
if (Locate(BehaviourTree._current, task, out path, out line))
{
exceptions.Add(new PandaScriptException(msg, path, line));
}
else
{
exceptions.Add(new System.NotImplementedException(msg));
}
}
}
if (over_implementedTasks.Count > 0)
{
int line = 0;
string path = null;
foreach (var task in over_implementedTasks)
{
var m = GetMethodSignatureString(task);
string msg = string.Format("The task `{0}' has too many definitions.\n", m);
msg += string.Format("The task is implemented in:\n");
foreach (var o in taskImplementationCandidates[task])
{
msg += string.Format(" - `{0}'\n", o.target.GetType().ToString());
}
if (Locate(BehaviourTree._current, task, out path, out line))
{
exceptions.Add(new PandaScriptException(msg, path, line));
}
else
{
exceptions.Add(new System.Exception(msg));
}
}
}
if (exceptions.Count == 0)
{
exceptions.AddRange(CheckRootTree(program));
}
program._exceptions = exceptions.ToArray();
// Bind the tasks.
foreach (var kv in taskImplementationCandidates)
{
var task = kv.Key;
var candidates = kv.Value;
if (candidates.Count == 1)
{
var ti = candidates[0];
Bind(task, ti);
}
else
{
task.Unbind();
}
}
}
public GUINode(TaskImplementation implementation)
{
Promote(implementation);
}