three
Version:
JavaScript 3D library
69 lines (37 loc) • 1.31 kB
JavaScript
import TempNode from '../core/TempNode.js';
import { vectorComponents } from '../core/constants.js';
class FlipNode extends TempNode {
static get type() {
return 'FlipNode';
}
constructor( sourceNode, components ) {
super();
this.sourceNode = sourceNode;
this.components = components;
}
getNodeType( builder ) {
return this.sourceNode.getNodeType( builder );
}
generate( builder ) {
const { components, sourceNode } = this;
const sourceType = this.getNodeType( builder );
const sourceSnippet = sourceNode.build( builder );
const sourceCache = builder.getVarFromNode( this );
const sourceProperty = builder.getPropertyName( sourceCache );
builder.addLineFlowCode( sourceProperty + ' = ' + sourceSnippet, this );
const length = builder.getTypeLength( sourceType );
const snippetValues = [];
let componentIndex = 0;
for ( let i = 0; i < length; i ++ ) {
const component = vectorComponents[ i ];
if ( component === components[ componentIndex ] ) {
snippetValues.push( '1.0 - ' + ( sourceProperty + '.' + component ) );
componentIndex ++;
} else {
snippetValues.push( sourceProperty + '.' + component );
}
}
return `${ builder.getType( sourceType ) }( ${ snippetValues.join( ', ' ) } )`;
}
}
export default FlipNode;