Class PhysicsBodyStateUpdater

java.lang.Object

com.hypixel.hytale.server.core.modules.physics.util.PhysicsBodyStateUpdater

Direct Known Subclasses:

PhysicsBodyStateUpdaterMidpoint, PhysicsBodyStateUpdaterRK4, PhysicsBodyStateUpdaterSymplecticEuler

public class PhysicsBodyStateUpdater
extends Object

Base class for updating position and velocity of a physics body over time step.

The updater numerically integrates applied forces over the time step to derive acceleration used to compute new position and velocity.

This implementation uses explicit Euler method for integration and is O(dt). See https://en.wikipedia.org/wiki/Euler_method.

Since:

2020-03-06

Constructor Summary

Constructors

Constructor	Description
PhysicsBodyStateUpdater()

Method Summary

Modifier and Type	Method	Description
void	update(PhysicsBodyState before, PhysicsBodyState after, double mass, double dt, boolean onGround, ForceProvider[] forceProvider)	Compute new position and velocity for a body over a time interval.

Methods inherited from class Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

PhysicsBodyStateUpdater

public PhysicsBodyStateUpdater()

Method Details

update

public void update(@Nonnull
 PhysicsBodyState before,
 @Nonnull
 PhysicsBodyState after,
 double mass,
 double dt,
 boolean onGround,
 @Nonnull
 ForceProvider[] forceProvider)

Compute new position and velocity for a body over a time interval.

Parameters:

before - Provided position and velocity at start of interval

after - Resulting position and velocity at end of interval

mass - Mass of body

dt - Time step/interval

onGround - Whether body is on ground

forceProvider - Array of force provider used to compute forces applied to body