Panda3D

collisionHandlerQueue.h

00001 // Filename: collisionHandlerQueue.h
00002 // Created by:  drose (16Mar02)
00003 //
00004 ////////////////////////////////////////////////////////////////////
00005 //
00006 // PANDA 3D SOFTWARE
00007 // Copyright (c) Carnegie Mellon University.  All rights reserved.
00008 //
00009 // All use of this software is subject to the terms of the revised BSD
00010 // license.  You should have received a copy of this license along
00011 // with this source code in a file named "LICENSE."
00012 //
00013 ////////////////////////////////////////////////////////////////////
00014 
00015 #ifndef COLLISIONHANDLERQUEUE_H
00016 #define COLLISIONHANDLERQUEUE_H
00017 
00018 #include "pandabase.h"
00019 
00020 #include "collisionHandler.h"
00021 #include "collisionEntry.h"
00022 
00023 ////////////////////////////////////////////////////////////////////
00024 //       Class : CollisionHandlerQueue
00025 // Description : A special kind of CollisionHandler that does nothing
00026 //               except remember the CollisionEntries detected the
00027 //               last pass.  This set of CollisionEntries may then be
00028 //               queried by the calling function.  It's primarily
00029 //               useful when a simple intersection test is being made,
00030 //               e.g. for picking from the window.
00031 ////////////////////////////////////////////////////////////////////
00032 class EXPCL_PANDA_COLLIDE CollisionHandlerQueue : public CollisionHandler {
00033 PUBLISHED:
00034   CollisionHandlerQueue();
00035 
00036 public:
00037   virtual void begin_group();
00038   virtual void add_entry(CollisionEntry *entry);
00039 
00040 PUBLISHED:
00041   void sort_entries();
00042   void clear_entries();
00043 
00044   int get_num_entries() const;
00045   CollisionEntry *get_entry(int n) const;
00046   MAKE_SEQ(get_entries, get_num_entries, get_entry);
00047 
00048   void output(ostream &out) const;
00049   void write(ostream &out, int indent_level = 0) const;
00050 
00051 private:
00052   typedef pvector< PT(CollisionEntry) > Entries;
00053   Entries _entries;
00054 
00055 public:
00056   static TypeHandle get_class_type() {
00057     return _type_handle;
00058   }
00059   static void init_type() {
00060     CollisionHandler::init_type();
00061     register_type(_type_handle, "CollisionHandlerQueue",
00062                   CollisionHandler::get_class_type());
00063   }
00064   virtual TypeHandle get_type() const {
00065     return get_class_type();
00066   }
00067   virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00068 
00069 private:
00070   static TypeHandle _type_handle;
00071 };
00072 
00073 INLINE ostream &operator << (ostream &out, const CollisionHandlerQueue &chq) {
00074   chq.output(out);
00075   return out;
00076 }
00077 
00078 #endif
00079 
00080 
00081 
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