cpvneg ( v1: cpVect -- v2: cpVect )

Vocabulary

chipmunk.ffi

Inputs

v1

a cpVect

Outputs

v2

a cpVect

Definition

USING: accessors kernel math typed ;

IN: chipmunk.ffi

TYPED: cpvneg ( v1: cpVect -- v2: cpVect )
    [ x>> ] [ y>> ] bi [ neg ] bi@ cpv ; inline