Fix Maya and FPS cameras so that they only animate if they are:

1) The active camera.
2) Receiving input.

This allows example 09.Meshviewer (with two cameras) to work as expected.  Replace the magic numbers in that example with enumerated values.

This patch also exposes ISceneNode::SceneManager through a public getSceneManager() API.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@1974 dfc29bdd-3216-0410-991c-e03cc46cb475

include/ISceneNode.h

@@ -676,6 +676,10 @@ namespace scene
 			return 0; // to be implemented by derived classes
 		}
 
+		//! Retrieve the scene manager for this node.
+		/** \return The node's scene manager. */
+		virtual ISceneManager* getSceneManager(void) const { return SceneManager; }
+
 	protected:
 
 		//! A clone function for the ISceneNode members.

source/Irrlicht/CSceneNodeAnimatorCameraFPS.cpp

@@ -115,6 +115,14 @@ void CSceneNodeAnimatorCameraFPS::animateNode(ISceneNode* node, u32 timeMs)
 		firstUpdate = false;
 	}
 
+	// If the camera isn't the active camera, and receiving input, then don't process it.
+	if(!camera->isInputReceiverEnabled())
+		return;
+
+	scene::ISceneManager * smgr = camera->getSceneManager();
+	if(smgr && smgr->getActiveCamera() != camera)
+		return;
+
 	// get time
 	f32 timeDiff = (f32) ( timeMs - LastAnimationTime );
 	LastAnimationTime = timeMs;

source/Irrlicht/CSceneNodeAnimatorCameraMaya.cpp

@@ -6,6 +6,7 @@
 #include "ICursorControl.h"
 #include "ICameraSceneNode.h"
 #include "SViewFrustum.h"
+#include "ISceneManager.h"
 
 namespace irr
 {
@@ -95,6 +96,14 @@ void CSceneNodeAnimatorCameraMaya::animateNode(ISceneNode *node, u32 timeMs)
 
 	ICameraSceneNode* camera = static_cast<ICameraSceneNode*>(node);
 
+	// If the camera isn't the active camera, and receiving input, then don't process it.
+	if(!camera->isInputReceiverEnabled())
+		return;
+
+	scene::ISceneManager * smgr = camera->getSceneManager();
+	if(smgr && smgr->getActiveCamera() != camera)
+		return;
+
 	if (OldCamera != camera)
 	{
 		OldTarget = camera->getTarget();

tests/tests-last-passed-at.txt

-Test suite pass at GMT Wed Dec 17 23:49:16 2008
+Test suite pass at GMT Thu Dec 18 15:24:34 2008