Initial commit

Torque/SDK/engine/sceneGraph/sceneRoot.cc

@@ -0,0 +1,84 @@
+//-----------------------------------------------------------------------------
+// Torque Game Engine
+// Copyright (C) GarageGames.com, Inc.
+//-----------------------------------------------------------------------------
+
+#include "sceneGraph/sceneRoot.h"
+#include "sceneGraph/sceneGraph.h"
+#include "sceneGraph/sceneState.h"
+
+SceneRoot* gClientSceneRoot = NULL;
+SceneRoot* gServerSceneRoot = NULL;
+
+SceneRoot::SceneRoot()
+{
+   mObjBox.min.set(-1e10, -1e10, -1e10);
+   mObjBox.max.set( 1e10,  1e10,  1e10);
+   resetWorldBox();
+}
+
+SceneRoot::~SceneRoot()
+{
+
+}
+
+bool SceneRoot::onSceneAdd(SceneGraph* pGraph)
+{
+   // _Cannot_ call the parent here.  Must handle this ourselves so we can keep out of
+   //  the zone graph...
+//   if (Parent::onSceneAdd(pGraph) == false)
+//      return false;
+
+   mSceneManager = pGraph;
+   mSceneManager->registerZones(this, 1);
+   AssertFatal(mZoneRangeStart == 0, "error, sceneroot must be first scene object zone manager!");
+
+   return true;
+}
+
+void SceneRoot::onSceneRemove()
+{
+   AssertFatal(mZoneRangeStart == 0, "error, sceneroot must be first scene object zone manager!");
+   mSceneManager->unregisterZones(this);
+   mZoneRangeStart = 0xFFFFFFFF;
+   mSceneManager = NULL;
+
+   // _Cannot_ call the parent here.  Must handle this ourselves so we can keep out of
+   //  the zone graph...
+//   Parent::onSceneRemove();
+}
+
+bool SceneRoot::getOverlappingZones(SceneObject*, U32* zones, U32* numZones)
+{
+   // If we are here, we always return the global zone.
+   zones[0]  = 0;
+   *numZones = 1;
+
+   return false;
+}
+
+bool SceneRoot::prepRenderImage(SceneState* state, const U32 stateKey,
+                                const U32,
+                                const bool modifyBaseZoneState)
+{
+   AssertFatal(modifyBaseZoneState == true, "error, should never be called unless in the upward traversal!");
+   AssertFatal(isLastState(state, stateKey) == false, "Error, should have been colored black in order to prevent double calls!");
+   setLastState(state, stateKey);
+
+   // We don't return a render image, or any portals, but we do setup the zone 0
+   //  rendering parameters.  We simply copy them from what is in the states baseZoneState
+   //  structure, and mark the zone as rendered.
+   dMemcpy(state->getZoneStateNC(0).frustum, state->getBaseZoneState().frustum, sizeof(state->getZoneStateNC(0).frustum));
+   state->getZoneStateNC(0).viewport = state->getBaseZoneState().viewport;
+   state->getZoneStateNC(0).render   = true;
+
+   return false;
+}
+
+bool SceneRoot::scopeObject(const Point3F&        /*rootPosition*/,
+                            const F32             /*rootDistance*/,
+                            bool*                 zoneScopeState)
+{
+   zoneScopeState[0] = true;
+   return false;
+}