(Mostly) updated verve implementation.

Engine/source/Verve/Extension/Camera/VCameraGroup.cpp

@@ -0,0 +1,224 @@
+//-----------------------------------------------------------------------------
+// Verve
+// Copyright (C) 2014 - Violent Tulip
+//
+// 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 "Verve/Extension/Camera/VCameraGroup.h"
+#include "Verve/Extension/Camera/VCameraTrack.h"
+
+//-----------------------------------------------------------------------------
+IMPLEMENT_CONOBJECT( VCameraGroup );
+//-----------------------------------------------------------------------------
+
+VCameraGroup *VCameraGroup::mActiveGroup = NULL;
+VCameraGroup::CameraChangeSignal VCameraGroup::mCameraChangeSignal;
+
+//-----------------------------------------------------------------------------
+
+VCameraGroup::VCameraGroup( void )
+{
+    setLabel( "CameraGroup" );
+};
+
+//-----------------------------------------------------------------------------
+//
+// Tree Methods.
+//
+//-----------------------------------------------------------------------------
+
+//-----------------------------------------------------------------------------
+// 
+// VCameraGroup::onAttach();
+// 
+// This callback subscribes this object to the controller's event signal.
+// 
+//-----------------------------------------------------------------------------
+void VCameraGroup::onAttach( void )
+{
+    Parent::onAttach();
+
+    // Valid Controller?
+    if ( getController() )
+    {
+        // Subscribe to Events.
+        getController()->getControllerEventSignal().notify( this, &VCameraGroup::onControllerEvent );
+    }
+}
+
+//-----------------------------------------------------------------------------
+// 
+// VCameraGroup::onAttach();
+// 
+// This callback removes this object from the controller's event signal
+// notification list.
+// 
+//-----------------------------------------------------------------------------
+void VCameraGroup::onDetach( void )
+{
+    // Valid Controller?
+    if ( getController() )
+    {
+        // Remove Event Notification.
+        getController()->getControllerEventSignal().remove( this, &VCameraGroup::onControllerEvent );
+    }
+
+    Parent::onDetach();
+}
+
+//-----------------------------------------------------------------------------
+//
+// Controller Methods.
+//
+//-----------------------------------------------------------------------------
+
+//-----------------------------------------------------------------------------
+// 
+// VCameraGroup::onControllerEvent( pEvent );
+// 
+// When the controller's state changes, this method is called.
+// 
+// For a full list of possible events, see the 'eControllerEventType'
+// declaration in VController.h.
+// 
+//-----------------------------------------------------------------------------
+bool VCameraGroup::onControllerEvent( VController::eControllerEventType pEvent )
+{
+    if ( !getController() )
+    {
+        AssertFatal( false, "VCameraGroup::onControllerEvent() - Invalid Controller." );
+        return false;
+    }
+
+    // Enabled?
+    if ( !isEnabled() )
+    {
+        // Continue Processing Events.
+        return true;
+    }
+
+    switch( pEvent )
+    {
+#ifdef VT_EDITOR
+        case VController::k_EventPause :
+#endif
+        case VController::k_EventStop :
+            {
+
+                // Clear the Camera.
+                clearActiveGroup();
+
+            } break;
+    }
+
+    return true;
+}
+
+//-----------------------------------------------------------------------------
+//
+// Camera Methods.
+//
+//-----------------------------------------------------------------------------
+
+//-----------------------------------------------------------------------------
+// 
+// VCameraGroup::setActive();
+// 
+// Set this Group to Active.
+// 
+//-----------------------------------------------------------------------------
+void VCameraGroup::setActive( void )
+{
+    // Set Active.
+    setActiveGroup( this );
+}
+
+//-----------------------------------------------------------------------------
+// 
+// VCameraGroup::clearActiveGroup();
+// 
+// Clear the Active Camera.
+// 
+//-----------------------------------------------------------------------------
+void VCameraGroup::clearActiveGroup( void )
+{
+    if ( mActiveGroup )
+    {
+        // Deactivate Signal.
+        mActiveGroup->getCameraEventSignal().trigger( k_EventDeactivate );
+    }
+
+    // Store.
+    mActiveGroup = NULL;
+
+    // Clear Camera Object.
+    VTorque::setCamera( NULL );
+
+    // Change Signal.
+    getCameraChangeSignal().trigger( NULL );
+}
+
+//-----------------------------------------------------------------------------
+// 
+// VCameraGroup::setActiveGroup( pCameraGroup );
+// 
+// Change the current camera group. The actual camera object is the object that
+// the group references.
+// 
+// A NULL value of pCameraGroup will clear the active camera, which generally
+// reverts to the connection's control object. The camera is also cleared when
+// the Controller stops playing.
+// 
+//-----------------------------------------------------------------------------
+void VCameraGroup::setActiveGroup( VCameraGroup *pCameraGroup )
+{
+    // Change Camera?
+    if ( pCameraGroup == mActiveGroup ||
+         pCameraGroup && !pCameraGroup->isEnabled() )
+    {
+        // Invalid Target.
+        return;
+    }
+
+    if ( mActiveGroup )
+    {
+        // Deactivate Signal.
+        mActiveGroup->getCameraEventSignal().trigger( k_EventDeactivate );
+    }
+
+    // Store.
+    mActiveGroup = pCameraGroup;
+
+    if ( mActiveGroup )
+    {
+        // Set Camera Object.
+        VTorque::setCamera( mActiveGroup->getSceneObject() );
+
+        // Activate Signal.
+        mActiveGroup->getCameraEventSignal().trigger( k_EventActivate );
+    }
+    else
+    {
+        // Clear Camera Object.
+        VTorque::setCamera( NULL );
+    }
+
+    // Change Signal.
+    getCameraChangeSignal().trigger( mActiveGroup );
+}