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class Layers {
constructor() {
this.mask = 1 | 0;
}
set( channel ) {
this.mask = ( 1 << channel | 0 ) >>> 0;
}
enable( channel ) {
this.mask |= 1 << channel | 0;
}
enableAll() {
this.mask = 0xffffffff | 0;
}
toggle( channel ) {
this.mask ^= 1 << channel | 0;
}
disable( channel ) {
this.mask &= ~ ( 1 << channel | 0 );
}
disableAll() {
this.mask = 0;
}
test( layers ) {
return ( this.mask & layers.mask ) !== 0;
}
isEnabled( channel ) {
return ( this.mask & ( 1 << channel | 0 ) ) !== 0;
}
}
export { Layers };