public override void UpdateBeforeMapSolve(bool prediction, PhysicsMap map, float frameTime)
{
base.UpdateBeforeMapSolve(prediction, map, frameTime);
foreach (var body in map.AwakeBodies)
{
if (prediction && !body.Predict)
{
continue;
}
var speed = body.LinearVelocity.Length;
if (speed <= 0.0f || body.BodyStatus == BodyStatus.InAir)
{
continue;
}
// This is the *actual* amount that speed will drop by, we just do some multiplication around it to be easier.
var drop = 0.0f;
float control;
// Only apply friction when it's not a mob (or the mob doesn't have control).
if (SharedMoverController.UseMobMovement(_broadPhaseSystem, body, _physicsManager))
{
continue;
}
var surfaceFriction = GetTileFriction(body);
var bodyModifier = body.Owner.GetComponentOrNull <SharedTileFrictionModifier>()?.Modifier ?? 1.0f;
var friction = _frictionModifier * surfaceFriction * bodyModifier;
if (friction > 0.0f)
{
// TBH I can't really tell if this makes a difference.
if (!prediction)
{
control = speed < _stopSpeed ? _stopSpeed : speed;
}
else
{
control = speed;
}
drop += control * friction * frameTime;
}
var newSpeed = MathF.Max(0.0f, speed - drop);
newSpeed /= speed;
body.LinearVelocity *= newSpeed;
}
}
public override void UpdateBeforeMapSolve(bool prediction, PhysicsMap map, float frameTime)
{
base.UpdateBeforeMapSolve(prediction, map, frameTime);
foreach (var body in map.AwakeBodies)
{
// Only apply friction when it's not a mob (or the mob doesn't have control)
if (prediction && !body.Predict ||
body.BodyStatus == BodyStatus.InAir ||
SharedMoverController.UseMobMovement(_broadPhaseSystem, body, _physicsManager))
{
continue;
}
var surfaceFriction = GetTileFriction(body);
var bodyModifier = body.Owner.GetComponentOrNull <SharedTileFrictionModifier>()?.Modifier ?? 1.0f;
var friction = _frictionModifier * surfaceFriction * bodyModifier;
ReduceLinearVelocity(prediction, body, friction, frameTime);
ReduceAngularVelocity(prediction, body, friction, frameTime);
}
}