preUpdate() Called at the start of the core update loop. Purges flagged bodies from the world.

game : Phaser.Game Local reference to game.

addMultiple(children, silent) → {Array.<

getFirstAlive(createIfNull, x, y, key,

createRevoluteConstraint(bodyA, pivotA, bodyB, pivotB, maxForce, worldPivot)

getBottom() → {any} Returns the child at the bottom of this group. The bottom child the child

name : string A name for this group. Not used internally but useful for debugging.

new Material(name) A P2 Material. \o/ ~ "Because I'm a Material girl" Parameters

collides(group, callback, callbackContext, shape)

moveDown(speed) If this Body is dynamic then this will move it down by setting its y velocity to the given speed.The speed is