Fix T46902: Revert zeroing velocity in BGE logic brick

This reverts commit 3dbc123061aa063efd1fca358f5e295b0ce7b302, "BGE:
allow setting velocity to zero in a motion actuator" as it caused more
issues than it solved. Zeroing linear or angular velocity with logic
bricks is discussed further in https://developer.blender.org/D1545

1 files changed, 4 insertions, 17 deletions

diff --git a/source/gameengine/Ketsji/KX_ObjectActuator.cpp b/source/gameengine/Ketsji/KX_ObjectActuator.cpp
index 87c2592ecfd..45436693281 100644
--- a/source/gameengine/Ketsji/KX_ObjectActuator.cpp
+++ b/source/gameengine/Ketsji/KX_ObjectActuator.cpp
@@ -276,16 +276,8 @@ bool KX_ObjectActuator::Update()
 			{
 				parent->ApplyRotation(m_drot,(m_bitLocalFlag.DRot) != 0);
 			}
-
-			if (m_bitLocalFlag.ZeroLinearVelocity) {
-				if (!m_bitLocalFlag.AddOrSetLinV) {
-					/* No need to select local or world, as the velocity is zero anyway,
-					 * and setLinearVelocity() converts local to world first. We do need to
-					 * pass a true zero vector, as m_linear_velocity is only fuzzily zero. */
-					parent->setLinearVelocity(MT_Vector3(0, 0, 0), false);
-				}
-			}
-			else {
+			if (!m_bitLocalFlag.ZeroLinearVelocity)
+			{
 				if (m_bitLocalFlag.AddOrSetLinV) {
 					parent->addLinearVelocity(m_linear_velocity,(m_bitLocalFlag.LinearVelocity) != 0);
 				} else {
@@ -310,13 +302,8 @@ bool KX_ObjectActuator::Update()
 					}
 				}
 			}
-			if (m_bitLocalFlag.ZeroAngularVelocity) {
-				/* No need to select local or world, as the velocity is zero anyway,
-				 * and setAngularVelocity() converts local to world first. We do need to
-				 * pass a true zero vector, as m_angular_velocity is only fuzzily zero. */
-				parent->setAngularVelocity(MT_Vector3(0, 0, 0), false);
-			}
-			else {
+			if (!m_bitLocalFlag.ZeroAngularVelocity)
+			{
 				m_active_combined_velocity = true;
 				if (m_damping > 0) {
 					MT_Vector3 angV;