1 files changed, 10 insertions, 7 deletions

diff --git a/BSPTree.h b/BSPTree.h
index 4965318..a03327b 100644
--- a/BSPTree.h
+++ b/BSPTree.h
@@ -14,20 +14,20 @@ class BSPTree {
         Plane(const vmml::vec3f &n, float d0) : normal(n), d(d0) {}
         Plane(const Triangle &t) : normal(t.getNormal()), d(t.getVertex(0).dot(normal)) {}
 
-        bool contains(const vmml::vec3f &v) {
+        bool contains(const vmml::vec3f &v) const {
           return (fabsf(normal.dot(v) - d) < 1E-6);
         }
 
-        bool isBehind(const vmml::vec3f &v) {
+        bool isBehind(const vmml::vec3f &v) const {
           return (normal.dot(v) - d) < 0;
         }
 
-        bool isInFront(const vmml::vec3f &v) {
+        bool isInFront(const vmml::vec3f &v) const {
           return (normal.dot(v) - d) > 0;
         }
 
 
-        bool contains(const Triangle &t) {
+        bool contains(const Triangle &t) const {
           for(int i = 0; i < 3; ++i) {
             if(!contains(t.getVertex(i)))
               return false;
@@ -36,7 +36,7 @@ class BSPTree {
           return true;
         }
 
-        bool isBehind(const Triangle &t) {
+        bool isBehind(const Triangle &t) const {
           for(int i = 0; i < 3; ++i) {
             if(!isBehind(t.getVertex(i)) && !contains(t.getVertex(i)))
               return false;
@@ -45,7 +45,7 @@ class BSPTree {
           return true;
         }
 
-        bool isInFront(const Triangle &t) {
+        bool isInFront(const Triangle &t) const {
           for(int i = 0; i < 3; ++i) {
             if(!isInFront(t.getVertex(i)) && !contains(t.getVertex(i)))
               return false;
@@ -55,10 +55,13 @@ class BSPTree {
         }
 
 
-        const vmml::vec3f& getNormal() {
+        const vmml::vec3f& getNormal() const {
           return normal;
         }
 
+        vmml::vec3f intersection(const vmml::vec3f &p, const vmml::vec3f &dir) const;
+        void partition(const Triangle &t, std::list<Triangle> *front, std::list<Triangle> *back) const;
+
       private:
         vmml::vec3f normal;
         float d;