Howto:Optimizing FlightGear for mobile devices: Difference between revisions

Howto:Optimizing FlightGear for mobile devices (view source)

148 bytes added , 7 August 2012

20,741

edits

@@ Line 208: / Line 208: @@
 class SGOptional : public SGPropertyChangeListener {
 public:
-  SGOptional(const SGPropertyNode_ptr& switch_node, const T* ptr): _type(ptr);
+  SGOptional(const char* p) : _toggle_switch(p) {
+  fgAddChangeListener(p, this);
+ }
+void valueChanged() {
+ // enable/disable system, call notification callbacks, set properties and allocate/free memory
+}
 protected:
 private:
+ SGPropertyNode_ptr _toggle_switch;
   T _type;
 };
@@ Line 266: / Line 274: @@
      // Sound manager is updated last so it can use the CPU while the GPU
      // is processing the scenery (doubled the frame-rate for me) -EMH-
-     globals->add_subsystem("sound", new SGOptional<SGSoundMgr>("/enable/sound", new SGSoundMgr), SGSubsystemMgr::SOUND);
+     globals->add_subsystem("sound", new SGOptional<SGSoundMgr>("/enable/sound"), SGSubsystemMgr::SOUND);
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