From 96b355e38c7bec1d20b8074e1e14a9035bfcd35e Mon Sep 17 00:00:00 2001
From: Kai Boernert <kai-boernert@visiongamestudios.de>
Date: Thu, 10 Aug 2017 14:06:44 +0200
Subject: [PATCH] added inertia manipulating methods

---
 ...m_jme3_bullet_objects_PhysicsRigidBody.cpp | 35 +++++++++++++++++++
 ...com_jme3_bullet_objects_PhysicsRigidBody.h |  8 +++++
 .../jme3/bullet/objects/PhysicsRigidBody.java | 16 ++++++++-
 3 files changed, 58 insertions(+), 1 deletion(-)

diff --git a/jme3-bullet-native/src/native/cpp/com_jme3_bullet_objects_PhysicsRigidBody.cpp b/jme3-bullet-native/src/native/cpp/com_jme3_bullet_objects_PhysicsRigidBody.cpp
index 9241bcf5b..465c15620 100644
--- a/jme3-bullet-native/src/native/cpp/com_jme3_bullet_objects_PhysicsRigidBody.cpp
+++ b/jme3-bullet-native/src/native/cpp/com_jme3_bullet_objects_PhysicsRigidBody.cpp
@@ -151,6 +151,41 @@ extern "C" {
         //        }
     }
 
+
+    /*
+     * Class:     com_jme3_bullet_objects_PhysicsRigidBody
+     * Method:    setInverseInertiaLocal
+     * Signature: (JLcom/jme3/math/Vector3f;)V
+     */
+    JNIEXPORT void JNICALL Java_com_jme3_bullet_objects_PhysicsRigidBody_setInverseInertiaLocal
+    (JNIEnv *env, jobject object, jlong bodyId, jobject value) {
+        btRigidBody* body = reinterpret_cast<btRigidBody*>(bodyId);
+        if (body == NULL) {
+            jclass newExc = env->FindClass("java/lang/NullPointerException");
+            env->ThrowNew(newExc, "The native object does not exist.");
+            return;
+        }
+        btVector3 vec = btVector3();
+        jmeBulletUtil::convert(env, value, &vec);
+        body->setInvInertiaDiagLocal(vec);
+    }
+    
+    /*
+     * Class:     com_jme3_bullet_objects_PhysicsRigidBody
+     * Method:    getInverseInertiaLocal
+     * Signature: (JLcom/jme3/math/Vector3f;)V
+     */
+    JNIEXPORT void JNICALL Java_com_jme3_bullet_objects_PhysicsRigidBody_getInverseInertiaLocal
+    (JNIEnv *env, jobject object, jlong bodyId, jobject value) {
+        btRigidBody* body = reinterpret_cast<btRigidBody*>(bodyId);
+        if (body == NULL) {
+            jclass newExc = env->FindClass("java/lang/NullPointerException");
+            env->ThrowNew(newExc, "The native object does not exist.");
+            return;
+        }
+        jmeBulletUtil::convert(env, &body->getInvInertiaDiagLocal(), value);
+    }
+
     /*
      * Class:     com_jme3_bullet_objects_PhysicsRigidBody
      * Method:    getPhysicsLocation
diff --git a/jme3-bullet-native/src/native/cpp/com_jme3_bullet_objects_PhysicsRigidBody.h b/jme3-bullet-native/src/native/cpp/com_jme3_bullet_objects_PhysicsRigidBody.h
index 4cfb85b37..273c4c7f7 100644
--- a/jme3-bullet-native/src/native/cpp/com_jme3_bullet_objects_PhysicsRigidBody.h
+++ b/jme3-bullet-native/src/native/cpp/com_jme3_bullet_objects_PhysicsRigidBody.h
@@ -89,6 +89,14 @@ JNIEXPORT void JNICALL Java_com_jme3_bullet_objects_PhysicsRigidBody_setPhysicsR
 JNIEXPORT void JNICALL Java_com_jme3_bullet_objects_PhysicsRigidBody_getPhysicsLocation
   (JNIEnv *, jobject, jlong, jobject);
 
+/*
+ * Class:     com_jme3_bullet_objects_PhysicsRigidBody
+ * Method:    getInverseInertiaLocal
+ * Signature: (JLcom/jme3/math/Vector3f;)V
+ */
+JNIEXPORT void JNICALL Java_com_jme3_bullet_objects_PhysicsRigidBody_getInverseInertiaLocal
+  (JNIEnv *, jobject, jlong, jobject);
+
 /*
  * Class:     com_jme3_bullet_objects_PhysicsRigidBody
  * Method:    getPhysicsRotation
diff --git a/jme3-bullet/src/main/java/com/jme3/bullet/objects/PhysicsRigidBody.java b/jme3-bullet/src/main/java/com/jme3/bullet/objects/PhysicsRigidBody.java
index 0342f4c77..84c16f831 100644
--- a/jme3-bullet/src/main/java/com/jme3/bullet/objects/PhysicsRigidBody.java
+++ b/jme3-bullet/src/main/java/com/jme3/bullet/objects/PhysicsRigidBody.java
@@ -185,6 +185,21 @@ public class PhysicsRigidBody extends PhysicsCollisionObject {
         getPhysicsRotation(objectId, rot);
         return rot;
     }
+    
+    public void setInverseInertiaLocal(Vector3f gravity) {
+    	setInverseInertiaLocal(objectId, gravity);
+    }
+    private native void setInverseInertiaLocal(long objectId, Vector3f gravity);
+    
+    public Vector3f getInverseInertiaLocal(Vector3f trans) {
+        if (trans == null) {
+            trans = new Vector3f();
+        }
+        getInverseInertiaLocal(objectId, trans);
+        return trans;
+    }
+    
+    private native void getInverseInertiaLocal(long objectId, Vector3f vector);
 
     private native void getPhysicsRotation(long objectId, Quaternion rot);
 
@@ -352,7 +367,6 @@ public class PhysicsRigidBody extends PhysicsCollisionObject {
     public void setGravity(Vector3f gravity) {
         setGravity(objectId, gravity);
     }
-
     private native void setGravity(long objectId, Vector3f gravity);
 
     public float getFriction() {