BadBehavior added

Engine/source/BadBehavior/composite/RandomSelector.cpp

@@ -0,0 +1,68 @@
+//-----------------------------------------------------------------------------
+// Copyright (c) 2014 Guy Allard
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//-----------------------------------------------------------------------------
+
+#include "RandomSelector.h"
+
+#include "math/mMathFn.h"
+
+using namespace BadBehavior;
+
+//------------------------------------------------------------------------------
+// Random selector node
+//------------------------------------------------------------------------------
+IMPLEMENT_CONOBJECT(RandomSelector);
+
+Task *RandomSelector::createTask(SimObject &owner, BehaviorTreeRunner &runner)
+{
+   return new RandomSelectorTask(*this, owner, runner);
+}
+
+//------------------------------------------------------------------------------
+// Random selector task
+//------------------------------------------------------------------------------
+RandomSelectorTask::RandomSelectorTask(Node &node, SimObject &owner, BehaviorTreeRunner &runner)
+   : Parent(node, owner, runner)
+{
+}
+
+void RandomSelectorTask::onInitialize()
+{
+   Parent::onInitialize();
+
+   // randomize the order of our child tasks
+   VectorPtr<Task *> randomChildren;
+
+   while(mChildren.size() > 0)
+   {
+      U32 index = mRandI(0, mChildren.size() - 1);
+      Task* child = mChildren[index];
+      randomChildren.push_back(child);
+      mChildren.erase_fast(index);
+   }
+
+   mChildren = randomChildren;
+
+   // normal init
+   mCurrentChild = mChildren.begin();
+   if(mCurrentChild != mChildren.end())
+      (*mCurrentChild)->reset();
+}