From 95826297fbb02e82d44901fd9b7bd55d5a8286f0 Mon Sep 17 00:00:00 2001
From: David Rose <david@ddrose.com>
Date: Thu, 23 Feb 2006 03:51:48 +0000
Subject: [PATCH] assert against negative radius

---
 panda/src/collide/collisionSphere.I | 3 +++
 panda/src/collide/collisionTube.I   | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/panda/src/collide/collisionSphere.I b/panda/src/collide/collisionSphere.I
index 88bd215a68..c972277e9e 100644
--- a/panda/src/collide/collisionSphere.I
+++ b/panda/src/collide/collisionSphere.I
@@ -26,6 +26,7 @@ INLINE CollisionSphere::
 CollisionSphere(const LPoint3f &center, float radius) :
   _center(center), _radius(radius)
 {
+  nassertv(_radius >= 0.0f);
 }
 
 ////////////////////////////////////////////////////////////////////
@@ -37,6 +38,7 @@ INLINE CollisionSphere::
 CollisionSphere(float cx, float cy, float cz, float radius) :
   _center(cx, cy, cz), _radius(radius)
 {
+  nassertv(_radius >= 0.0f);
 }
 
 ////////////////////////////////////////////////////////////////////
@@ -101,6 +103,7 @@ get_center() const {
 ////////////////////////////////////////////////////////////////////
 INLINE void CollisionSphere::
 set_radius(float radius) {
+  nassertv(radius >= 0.0f);
   _radius = radius;
   mark_internal_bounds_stale();
   mark_viz_stale();
diff --git a/panda/src/collide/collisionTube.I b/panda/src/collide/collisionTube.I
index b494c78a67..482e25dff1 100644
--- a/panda/src/collide/collisionTube.I
+++ b/panda/src/collide/collisionTube.I
@@ -27,6 +27,7 @@ CollisionTube(const LPoint3f &a, const LPoint3f &b, float radius) :
   _a(a), _b(b), _radius(radius)
 {
   recalc_internals();
+  nassertv(_radius >= 0.0f);
 }
 
 ////////////////////////////////////////////////////////////////////
@@ -41,6 +42,7 @@ CollisionTube(float ax, float ay, float az,
   _a(ax, ay, az), _b(bx, by, bz), _radius(radius)
 {
   recalc_internals();
+  nassertv(_radius >= 0.0f);
 }
 
 ////////////////////////////////////////////////////////////////////
@@ -137,6 +139,7 @@ get_point_b() const {
 ////////////////////////////////////////////////////////////////////
 INLINE void CollisionTube::
 set_radius(float radius) {
+  nassertv(radius >= 0.0f);
   _radius = radius;
 
   // We don't need to call recalc_internals(), since the radius