removed knowledge of domain types from parser, removed process() from Node, added a global refptr<Node> object, took parse(fileName) out of Scene class

git-svn-id: svn://anubis/fart/trunk@123 7f9b0f55-74a9-4bce-be96-3c2cd072584d

main/Scene.cc

@@ -13,6 +13,9 @@
 #include "shapes/Shape.h"
 #include "PointLight.h"
 #include "Lighting.h"
+
+#include "parser/nodes.h"
+
 using namespace std;
 
 Scene::Scene(const map<string, const char *> & options,
@@ -116,6 +119,10 @@ void Scene::load(const char * filename)
     m_lights.push_back(light);
 }
 
+void parse(refptr<Node> node)
+{
+}
+
 void Scene::render()
 {
     if (m_verbose)

main/Scene.h

@@ -11,6 +11,7 @@
 #include "util/Color.h"
 #include "shapes/Shape.h"
 #include "Light.h"
+#include "parser/nodes.h"
 
 #define SCENE_MAX_TRANSPARENT_HITS 8
 #define SCENE_TRANSPARENCY_THRESHOLD 0.01
@@ -39,15 +40,13 @@ class Scene
         void setAmbientLight(const Color & al) { m_ambient_light = al; }
         Transform & getTransform() { return m_transform; }
 
-        friend int yyparse();
-
     protected:
         /* private methods */
         void load(const char * filename);
         void renderPixel(int x, int y, unsigned char * pixel);
         Color traceRay(const Ray & ray);
         std::vector<ShapeDistance> getRayHits(const Ray & ray);
-        int parse(const char * fileName);
+        void parse(refptr<Node> node);
 
         /* rendering parameters */
         int m_width;

parser/nodes.h

@@ -4,8 +4,6 @@
 
 #include "util/refptr.h"
 #include "util/Vector.h"
-#include "main/Material.h"
-#include "main/Scene.h"
 #include <vector>
 
 class Node
@@ -15,13 +13,7 @@ class Node
         void addChild(refptr<Node> child) { m_children.push_back(child); }
         void addChildren(refptr<Node> other);
 
-        virtual void process(refptr<Scene> scene) {}
-
         virtual int getInteger() { return 0; }
-        virtual refptr<Material> getMaterial()
-        {
-            return refptr<Material>(NULL);
-        }
         virtual double getNumber() { return 0.0; }
         virtual refptr<Vector> getVector()
         {

parser/parser.h

@@ -2,6 +2,13 @@
 #ifndef PARSER_H
 #define PARSER_H PARSER_H
 
+#include "nodes.h"
+#include "util/refptr.h"
+
 #define YYSTYPE refptr<Node>
 
+extern YYSTYPE parsed_scene_node;
+
+int parse(const char * fileName);
+
 #endif

parser/parser.yy

@@ -3,11 +3,8 @@
 
 #include <stdio.h>
 #include <iostream>
-#include "main/Scene.h"
-#include "main/Material.h"
 #include "util/Vector.h"
 #include "util/refptr.h"
-#include "shapes/Shape.h"           /* includes all shape types */
 #include "nodes.h"
 #include "parser.h"
 using namespace std;
@@ -26,7 +23,7 @@ int yywrap()
     return 1;
 }
 
-static Scene * g_scene;
+refptr<Node> parsed_scene_node;
 
 %}
 
@@ -91,6 +88,7 @@ static Scene * g_scene;
 scene: SCENE LCURLY scene_items RCURLY {
             $$ = new SceneNode();
             $$->addChildren($3);
+            parsed_scene_node = $$;
         }
      ;
 
@@ -389,9 +387,8 @@ vector: LESS number COMMA number COMMA number GREATER {
 
 %%
 
-int Scene::parse(const char * fileName)
+int parse(const char * fileName)
 {
-    g_scene = this;
     yyin = fopen(fileName, "r");
     if (yyin == NULL)
     {