Class: PhysicsEngine

Members

gravity Utils.Vector2d

gravity acceleration in px/s^2 (default: (0, 9.8 * pixelMeterRatio) )

numIterations Number

number of iterations/ticks per update (default: 7)

pixelMeterRatio Number

pixels/meter ratio (default: 50)

simSpeed Number

simulation speed multiplier

tickDuration Number

tick duration in seconds. Should be linear to 1/numIterations! (default: Scene.tick_duration/numIterations)

Methods

applyCollision (manifold)

resolve a collision described by a manifold

Name	Type	Description
manifold	Physics.Manifold	collision manifold of two entities.

applyNaturalForces (rigidbody)

applys natural forces to a rigidbody component

Name	Type	Description
rigidbody	Components.Rigidbody	rigidbody component

detectCollisions ()Array

detects collisions

Returns:

Type	Description
Array	array of collision manifolds

fixPenetration (manifold)

fixes penetration/energy loss

Name	Type	Description
manifold	Physics.Manifold	collision manifold

resolveCollisions (manifolds)

resolve collision manifolds

Name	Type	Description
manifolds	Array	array of collision manifolds

resolveNaturalForces ()

resolve natural forces on engine's tracked entities.

update (tick_duration)

updates physics engine (tick)

Name	Type	Description
tick_duration	Number	the time (in seconds) of a tick (usually dt)