Math improved and buffer fixes

Author: eduardodoria

engine/core/math/AABB.cpp

@@ -10,21 +10,17 @@ const AABB AABB::ZERO(0, 0, 0, 0, 0, 0);
 
 
 AABB::AABB()
-        : mMinimum(Vector3::ZERO), mMaximum(Vector3::UNIT_SCALE), mCorners(0) {
-    setMinimum( -0.5, -0.5, -0.5 );
-    setMaximum( 0.5, 0.5, 0.5 );
+        : mMinimum(Vector3(0, 0, 0)), mMaximum(Vector3(0, 0, 0)), mCorners(0) {
     mBoxType = BOXTYPE_NULL;
 }
 
 AABB::AABB(BoxType bt)
-        : mMinimum(Vector3::ZERO), mMaximum(Vector3::UNIT_SCALE), mCorners(0) {
-    setMinimum( -0.5, -0.5, -0.5 );
-    setMaximum( 0.5, 0.5, 0.5 );
+        : mMinimum(Vector3(0, 0, 0)), mMaximum(Vector3(0, 0, 0)), mCorners(0) {
     mBoxType = bt;
 }
 
 AABB::AABB(const AABB & rkBox)
-        : mMinimum(Vector3::ZERO), mMaximum(Vector3::UNIT_SCALE), mCorners(0) {
+        : mMinimum(Vector3(0, 0, 0)), mMaximum(Vector3(0, 0, 0)), mCorners(0) {
     if (rkBox.isNull())
         setNull();
     else if (rkBox.isInfinite())
@@ -34,12 +30,12 @@ AABB::AABB(const AABB & rkBox)
 }
 
 AABB::AABB( const Vector3& min, const Vector3& max )
-        : mMinimum(Vector3::ZERO), mMaximum(Vector3::UNIT_SCALE), mCorners(0) {
+        : mMinimum(Vector3(0, 0, 0)), mMaximum(Vector3(0, 0, 0)), mCorners(0) {
     setExtents( min, max );
 }
 
 AABB::AABB(float mx, float my, float mz, float Mx, float My, float Mz )
-        : mMinimum(Vector3::ZERO), mMaximum(Vector3::UNIT_SCALE), mCorners(0) {
+        : mMinimum(Vector3(0, 0, 0)), mMaximum(Vector3(0, 0, 0)), mCorners(0) {
     setExtents( mx, my, mz, Mx, My, Mz );
 }
 
@@ -317,10 +313,6 @@ bool AABB::isNull(void) const {
     return (mBoxType == BOXTYPE_NULL);
 }
 
-bool AABB::isFinite(void) const {
-    return (mBoxType == BOXTYPE_FINITE);
-}
-
 void AABB::setInfinite() {
     mBoxType = BOXTYPE_INFINITE;
 }
@@ -329,6 +321,14 @@ bool AABB::isInfinite(void) const {
     return (mBoxType == BOXTYPE_INFINITE);
 }
 
+void AABB::setFinite() {
+    mBoxType = BOXTYPE_FINITE;
+}
+
+bool AABB::isFinite(void) const {
+    return (mBoxType == BOXTYPE_FINITE);
+}
+
 bool AABB::intersects(const AABB& b2) const {
     if (this->isNull() || b2.isNull())
         return false;

engine/core/math/AABB.h

@@ -40,7 +40,7 @@ namespace Supernova{
 
     public:
 
-        static const AABB ZERO;
+        static const AABB ZERO; // not null, but all zeros
 
         AABB();
         AABB(BoxType e);
@@ -88,9 +88,10 @@ namespace Supernova{
 
         void setNull();
         bool isNull(void) const;
-        bool isFinite(void) const;
         void setInfinite();
         bool isInfinite(void) const;
+        void setFinite();
+        bool isFinite(void) const;
 
         bool intersects(const AABB& b2) const;
         bool intersects(const OBB& obb) const;