added Scene::process{Camera,Options,TransformBlock}()

git-svn-id: svn://anubis/fart/trunk@168 7f9b0f55-74a9-4bce-be96-3c2cd072584d

main/Scene-load.cc

@@ -12,7 +12,6 @@ typedef vector< refptr<Node> >::const_iterator Node_Iterator;
 
 void Scene::load(const char * filename)
 {
-    /* TODO: parse file somehow */
     refptr<Node> node = parse(filename);
     processNode(node);
 
@@ -122,6 +121,43 @@ void Scene::processNode(refptr<Node> node)
     {
         processChildren(node);
     }
+    else if ( node->isShape() )
+    {
+        refptr<Shape> shape = processShape(node);
+        if ( ! shape.isNull() )
+            m_shapes.push_back(shape);
+    }
+    else if ( typeid(*node) == typeid(LightNode) )
+    {
+        refptr<Light> light = processLight(node);
+        if ( ! light.isNull() )
+            m_lights.push_back(light);
+    }
+    else if ( typeid(*node) == typeid(CameraNode) )
+    {
+        processCamera(node);
+    }
+    else if ( typeid(*node) == typeid(OptionsNode) )
+    {
+        processOptions(node);
+    }
+    else if ( typeid(*node) == typeid(TranslateBlockNode) )
+    {
+        processTransformBlock(node);
+    }
+    else if ( typeid(*node) == typeid(RotateBlockNode) )
+    {
+        processTransformBlock(node);
+    }
+    else if ( typeid(*node) == typeid(ScaleBlockNode) )
+    {
+        processTransformBlock(node);
+    }
+    else
+    {
+        cerr << __FILE__ << ": " << __LINE__
+             << ": error: unrecognized node!" << endl;
+    }
 }
 
 refptr<Shape> Scene::processShape(refptr<Node> node)
@@ -167,6 +203,45 @@ void Scene::processChildren(refptr<Node> node)
     }
 }
 
+void Scene::processCamera(refptr<Node> node)
+{
+    Vector position(0, 0, 0);
+    Vector look_at(0, 1, 0);
+    Vector up(0, 0, 1);
+
+    for (Node_Iterator it = node->getChildren().begin();
+         it != node->getChildren().end();
+         it++)
+    {
+        if      ( typeid(**it) == typeid(PositionNode) )
+        {
+            position = * (*it)->getVector();
+        }
+        else if ( typeid(**it) == typeid(LookAtNode) )
+        {
+            look_at = * (*it)->getVector();
+        }
+        else if ( typeid(**it) == typeid(UpNode) )
+        {
+            up = * (*it)->getVector();
+        }
+        else if ( typeid(**it) == typeid(VFOVNode) )
+        {
+
+        }
+    }
+
+    m_transforms.top().lookAt(position, look_at, up);
+}
+
+void Scene::processOptions(refptr<Node> node)
+{
+}
+
+void Scene::processTransformBlock(refptr<Node> node)
+{
+}
+
 refptr<Material> Scene::processMaterial(refptr<Node> node)
 {
     refptr<Material> material = new Material();
@@ -276,7 +351,6 @@ refptr<Shape> Scene::processCyl(refptr<Node> node)
 
 refptr<Light> Scene::processLight(refptr<Node> node)
 {
-    /* TODO: finish */
     return refptr<Light>(NULL);
 }
 

main/Scene.h

@@ -67,6 +67,9 @@ class Scene
         refptr<Shape> processShape(refptr<Node> node);
         refptr<Shape> processBool(refptr<Node> node);
         bool processTransforms(refptr<Node> node);
+        void processCamera(refptr<Node> node);
+        void processOptions(refptr<Node> node);
+        void processTransformBlock(refptr<Node> node);
 
         /* rendering parameters */
         int m_width;

parser/nodes.h

@@ -113,8 +113,10 @@ class LightNode : public Node
 {
 };
 
-class LookAtNode : public Node
+class LookAtNode : public VectorNode
 {
+    public:
+        LookAtNode(refptr<Vector> vector) : VectorNode(vector) {}
 };
 
 class MaterialNode : public Node
@@ -153,8 +155,10 @@ class PlanePositionNode : public Node
         double m_dist;
 };
 
-class PositionNode : public Node
+class PositionNode : public VectorNode
 {
+    public:
+        PositionNode(refptr<Vector> vector) : VectorNode(vector) {}
 };
 
 class RadiusNode : public NumberNode
@@ -256,8 +260,10 @@ class UnionNode : public Node
         bool isShape() { return true; }
 };
 
-class UpNode : public Node
+class UpNode : public VectorNode
 {
+    public:
+        UpNode(refptr<Vector> vector) : VectorNode(vector) {}
 };
 
 class VFOVNode : public Node

parser/parser.yy

@@ -133,16 +133,13 @@ camera_items: /* empty */
             ;
 
 camera_item: POSITION vector {
-                $$ = new PositionNode();
-                $$->addChild($2);
+                $$ = new PositionNode($2->getVector());
             }
            | LOOKAT vector {
-                $$ = new LookAtNode();
-                $$->addChild($2);
+                $$ = new LookAtNode($2->getVector());
             }
            | UP vector {
-                $$ = new UpNode();
-                $$->addChild($2);
+                $$ = new UpNode($2->getVector());
             }
            | VFOV vector {
                 $$ = new VFOVNode();
@@ -193,8 +190,7 @@ light_items: /* empty */
            ;
 
 light_item: POSITION vector {
-                $$ = new PositionNode();
-                $$->addChild($2);
+                $$ = new PositionNode($2->getVector());
             }
           | DIFFUSE vector {
                 $$ = new DiffuseNode($2->getVector());