Add a Tag class to identify passes

[libs/gl.git] / source / object.h

diff --git a/source/object.h b/source/object.h
index f0940652992692bfce462258cf0d4a72e58b48ec..0b808983099e08ffba4caf01da9ad943b3966f0f 100644 (file)
--- a/source/object.h
+++ b/source/object.h
@@ -35,7 +35,7 @@ class Object: public Renderable
 private:
        std::vector<Mesh *> meshes;
        std::vector<Texture *> textures;
-       std::map<std::string, ObjectPass> passes;
+       std::map<unsigned, ObjectPass> passes;
        Material *material;
        ObjectPass *normal_pass;
 
@@ -69,25 +69,28 @@ public:
        Object();
        ~Object();
 
-       virtual bool has_pass(const std::string &) const;
-       const ObjectPass &get_pass(const std::string &) const;
+       virtual bool has_pass(const Tag &) const;
+       const ObjectPass &get_pass(const Tag &) const;
 
        /**
-       Renders the object.  If an ObjectInstance is provided, its hook functions
-       are called.
+       Renders the object.  A tag can be provided to render a non-default pass.
        */
-       virtual void render() const;
-       virtual void render(const ObjectInstance &) const;
-       virtual void render(const std::string &) const;
-       virtual void render(const std::string &, const ObjectInstance &) const;
+       virtual void render(const Tag &tag=Tag()) const;
 
        /**
-       Renders multiple instances of the object in one go.  This may be a
-       performance improvement, as the object-specific render setup only has to be
-       done once.
+       Renders the object with an instance.  The instance's hook functions are
+       called before and after drawing the mesh.  A tag may also be given to render
+       a non-default pass.
        */
-       void render(const std::list<const ObjectInstance *> &) const;
-       void render(const std::string &, const std::list<const ObjectInstance *> &) const;
+       virtual void render(const ObjectInstance &, const Tag &tag=Tag()) const;
+
+       /**
+       Renders multiple instances of the object in one go.  This may improve
+       performance, as the object-specific render setup only has to be done once.
+       Each instance's hook functions will be called before and after drawing the
+       mesh.
+       */
+       void render(const std::list<const ObjectInstance *> &, const Tag &tag=Tag()) const;
 private:
        void setup_render(const ObjectPass &) const;
        void finish_render(const ObjectPass &) const;