X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=laserbrain_demo;a=blobdiff_plain;f=src%2Fmetascene.cc;h=c46742032d555b25f150da4eaec4d0aa77fadb6e;hp=9c882495c25d282d163b9f3d5fd571c3c60e2ee1;hb=0d27f859021b4af5dbb5404ef5af012546abf335;hpb=d47a663825bd358d2165c1a4b040cc828aeb4991

diff --git a/src/metascene.cc b/src/metascene.cc
index 9c88249..c467420 100644
--- 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;