Significantly reduce jittering of resting bodies. Thanks to Daniel Chappuis for pointing this out.

DDoS · DDoS · commit 24b96b14d12e · 2013-09-04T12:25:38.000-04:00
Signed-off-by: Aleksi Sapon &lt;QcTechs@gmail.com&gt;
diff --git a/src/main/java/org/spout/physics/engine/ContactSolver.java b/src/main/java/org/spout/physics/engine/ContactSolver.java
@@ -365,7 +365,7 @@ private void initializeContactConstraints() {
 				}
 				contactPoint.restitutionBias = 0;
 				final float deltaVDotN = deltaV.dot(contactPoint.normal);
-				if (deltaVDotN < ReactDefaults.RESTITUTION_VELOCITY_THRESHOLD) {
+				if (deltaVDotN < -ReactDefaults.RESTITUTION_VELOCITY_THRESHOLD) {
 					contactPoint.restitutionBias = manifold.restitutionFactor * deltaVDotN;
 				}
 				if (WARM_STARTING_ACTIVE) {

Original file line number	Diff line number	Diff line change
`@@ -365,7 +365,7 @@ private void initializeContactConstraints() {`
`365`	`365`	`}`
`366`	`366`	`contactPoint.restitutionBias = 0;`
`367`	`367`	`final float deltaVDotN = deltaV.dot(contactPoint.normal);`
`368`		`- if (deltaVDotN < ReactDefaults.RESTITUTION_VELOCITY_THRESHOLD) {`
	`368`	`+ if (deltaVDotN < -ReactDefaults.RESTITUTION_VELOCITY_THRESHOLD) {`
`369`	`369`	`contactPoint.restitutionBias = manifold.restitutionFactor * deltaVDotN;`
`370`	`370`	`}`
`371`	`371`	`if (WARM_STARTING_ACTIVE) {`