From 0205eef96bbdc59c4a52c8323f9a39c717543bec Mon Sep 17 00:00:00 2001
From: TwistedTwigleg <beard.noah@gmail.com>
Date: Fri, 28 Aug 2020 14:16:12 -0400
Subject: [PATCH] Fixed 2D physics regression that causes RigidBody2D nodes to
 spin uncontrollably when colliding

---
 servers/physics_2d/body_pair_2d_sw.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/servers/physics_2d/body_pair_2d_sw.cpp b/servers/physics_2d/body_pair_2d_sw.cpp
index 59979594329..2021aab17c1 100644
--- a/servers/physics_2d/body_pair_2d_sw.cpp
+++ b/servers/physics_2d/body_pair_2d_sw.cpp
@@ -478,8 +478,8 @@ void BodyPair2DSW::solve(real_t p_step) {
 
 		Vector2 jb = c.normal * (c.acc_bias_impulse - jbnOld);
 
-		A->apply_bias_impulse(c.rA, -jb);
-		B->apply_bias_impulse(c.rB, jb);
+		A->apply_bias_impulse(-jb, c.rA);
+		B->apply_bias_impulse(jb, c.rB);
 
 		real_t jn = -(c.bounce + vn) * c.mass_normal;
 		real_t jnOld = c.acc_normal_impulse;