added delayed init call after scenegraph/meshes are done loading

[laserbrain_demo] / src / metascene.cc

diff --git a/src/metascene.cc b/src/metascene.cc
index 9c88249..c467420 100644 (file)
--- a/src/metascene.cc
+++ b/src/metascene.cc
@@ -13,6 +13,7 @@
 #include <regex>
 #include "metascene.h"
 #include "scene.h"
+#include "objmesh.h"
 #include "treestore.h"
 #include "logger.h"
 #include "app.h"
@@ -61,12 +62,19 @@ MetaScene::MetaScene()
 {
        walk_mesh = 0;
        music = 0;
+       mirrors = 0;
 }
 
 MetaScene::~MetaScene()
 {
        delete walk_mesh;
        delete music;
+
+       while(mirrors) {
+               FlatMirror *m = mirrors;
+               mirrors = mirrors->next;
+               delete m;
+       }
 }
 
 bool MetaScene::load(const char *fname)
@@ -134,6 +142,7 @@ void MetaScene::update(float dt)
 // XXX not used, renderer draws
 void MetaScene::draw() const
 {
+       error_log("Don't call MetaScene::draw, use the Renderer\n");
        int nscn = scenes.size();
        for(int i=0; i<nscn; i++) {
                scenes[i]->draw();
@@ -191,6 +200,66 @@ Scene *MetaScene::extract_nodes(const char *qstr)
        return scn;
 }
 
+int MetaScene::calc_mirror_planes()
+{
+       int num_mirrors = 0;
+       while(mirrors) {
+               FlatMirror *m = mirrors;
+               mirrors = mirrors->next;
+               delete m;
+       }
+       mirrors = 0;
+       objmirror.clear();
+
+       int numscn = scenes.size();
+       for(int i=0; i<numscn; i++) {
+               Scene *scn = scenes[i];
+
+               int numobj = scn->objects.size();
+               for(int j=0; j<numobj; j++) {
+                       Object *obj = scn->objects[j];
+
+                       if(obj->mtl.flat_mirror && obj->get_type() == OBJ_MESH) {
+                               const Mesh *mesh = ((ObjMesh*)obj)->mesh;
+                               if(!mesh) continue;
+
+                               // assume the object is actually flat, so grab the first triangle and make a plane
+                               Triangle face = Triangle(0, (const Vec3*)mesh->get_attrib_data(MESH_ATTR_VERTEX),
+                                               mesh->get_index_data());
+                               face.calc_normal();
+
+                               FlatMirror *mir = new FlatMirror;
+                               mir->plane.pt = face.v[0];
+                               mir->plane.normal = face.normal;
+                               mir->reflect = obj->mtl.reflect;
+
+                               // check to see if we have found this mirror plane already
+                               bool found = false;
+                               FlatMirror *node = mirrors;
+                               while(node) {
+                                       if(fabs(dot(mir->plane.normal, node->plane.normal)) < 1e-4 &&
+                                                       fabs(dot(mir->plane.normal, normalize(mir->plane.pt - node->plane.pt))) < 1e-4) {
+                                               found = true;
+                                               break;
+                                       }
+                               }
+
+                               if(!found) {
+                                       mir->next = mirrors;
+                                       mirrors = mir;
+
+                                       objmirror[obj] = mir;   // associate with object
+                                       ++num_mirrors;
+                               } else {
+                                       delete mir;
+                               }
+                       }
+               }
+       }
+
+       return num_mirrors;
+}
+
 static bool proc_node(MetaScene *mscn, struct ts_node *node)
 {
        struct ts_node *c = node->child_list;