ephysics: expose volume getter

useful to calculate density given a mass



SVN revision: 78201

legacy/ephysics/src/lib/EPhysics.h

@@ -3446,6 +3446,23 @@ EAPI void ephysics_body_density_set(EPhysics_Body *body, double density);
  */
 EAPI double ephysics_body_density_get(const EPhysics_Body *body);
 
+/**
+ * @brief
+ * Get body's volume.
+ *
+ * @note The unit of the returned value is meters ^ 3. Not pixels. Useful
+ * for calculation with mass and density.
+ *
+ * @param body The physics body.
+ * @return the @p body's volume, in meters ^ 3 or -1 on error.
+ *
+ * @see ephysics_body_geometry_set().
+ * @see ephysics_body_geometry_get().
+ *
+ * @ingroup EPhysics_Body
+ */
+EAPI double ephysics_body_volume_get(const EPhysics_Body *body);
+
 /**
  * @brief
  * Set body's material.

legacy/ephysics/src/lib/ephysics_body.cpp

@@ -3142,6 +3142,16 @@ ephysics_body_light_get(const EPhysics_Body *body)
    return body->light_apply;
 }
 
+EAPI double
+ephysics_body_volume_get(const EPhysics_Body *body)
+{
+   if (!body)
+     {
+        ERR("No body, no volume.");
+        return -1;
+     }
+   return _ephysics_body_volume_get(body);
+}
 
 #ifdef  __cplusplus
 }