From 64bc76ba49c73d16425d84317bfd38c1e697e901 Mon Sep 17 00:00:00 2001
From: Bruno Dilly <bdilly@profusion.mobi>
Date: Thu, 18 Oct 2012 21:23:05 +0000
Subject: [PATCH] ephysics: expose volume getter

useful to calculate density given a mass



SVN revision: 78201
---
 legacy/ephysics/src/lib/EPhysics.h        | 17 +++++++++++++++++
 legacy/ephysics/src/lib/ephysics_body.cpp | 10 ++++++++++
 2 files changed, 27 insertions(+)

diff --git a/legacy/ephysics/src/lib/EPhysics.h b/legacy/ephysics/src/lib/EPhysics.h
index 3f9035fe75..f81c3d76e2 100644
--- a/legacy/ephysics/src/lib/EPhysics.h
+++ b/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.
diff --git a/legacy/ephysics/src/lib/ephysics_body.cpp b/legacy/ephysics/src/lib/ephysics_body.cpp
index 0b25536eda..d50558eaf1 100644
--- a/legacy/ephysics/src/lib/ephysics_body.cpp
+++ b/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
 }