three
Version:
JavaScript 3D library
144 lines (74 loc) • 3.16 kB
JavaScript
import { MathUtils } from '../../../../build/three.module.js';
import { Node } from './Node.js';
function TempNode( type, params ) {
Node.call( this, type );
params = params || {};
this.shared = params.shared !== undefined ? params.shared : true;
this.unique = params.unique !== undefined ? params.unique : false;
}
TempNode.prototype = Object.create( Node.prototype );
TempNode.prototype.constructor = TempNode;
TempNode.prototype.build = function ( builder, output, uuid, ns ) {
output = output || this.getType( builder );
if ( this.getShared( builder, output ) ) {
var isUnique = this.getUnique( builder, output );
if ( isUnique && this.constructor.uuid === undefined ) {
this.constructor.uuid = MathUtils.generateUUID();
}
uuid = builder.getUuid( uuid || this.getUuid(), ! isUnique );
var data = builder.getNodeData( uuid ),
type = data.output || this.getType( builder );
if ( builder.analyzing ) {
if ( ( data.deps || 0 ) > 0 || this.getLabel() ) {
this.appendDepsNode( builder, data, output );
return this.generate( builder, output, uuid );
}
return Node.prototype.build.call( this, builder, output, uuid );
} else if ( isUnique ) {
data.name = data.name || Node.prototype.build.call( this, builder, output, uuid );
return data.name;
} else if ( ! this.getLabel() && ( ! this.getShared( builder, type ) || ( builder.context.ignoreCache || data.deps === 1 ) ) ) {
return Node.prototype.build.call( this, builder, output, uuid );
}
uuid = this.getUuid( false );
var name = this.getTemp( builder, uuid );
if ( name ) {
return builder.format( name, type, output );
} else {
name = TempNode.prototype.generate.call( this, builder, output, uuid, data.output, ns );
var code = this.generate( builder, type, uuid );
builder.addNodeCode( name + ' = ' + code + ';' );
return builder.format( name, type, output );
}
}
return Node.prototype.build.call( this, builder, output, uuid );
};
TempNode.prototype.getShared = function ( builder, output ) {
return output !== 'sampler2D' && output !== 'samplerCube' && this.shared;
};
TempNode.prototype.getUnique = function ( /* builder, output */ ) {
return this.unique;
};
TempNode.prototype.setLabel = function ( name ) {
this.label = name;
return this;
};
TempNode.prototype.getLabel = function ( /* builder */ ) {
return this.label;
};
TempNode.prototype.getUuid = function ( unique ) {
var uuid = unique || unique == undefined ? this.constructor.uuid || this.uuid : this.uuid;
if ( typeof this.scope === "string" ) uuid = this.scope + '-' + uuid;
return uuid;
};
TempNode.prototype.getTemp = function ( builder, uuid ) {
uuid = uuid || this.uuid;
var tempVar = builder.getVars()[ uuid ];
return tempVar ? tempVar.name : undefined;
};
TempNode.prototype.generate = function ( builder, output, uuid, type, ns ) {
if ( ! this.getShared( builder, output ) ) console.error( "THREE.TempNode is not shared!" );
uuid = uuid || this.uuid;
return builder.getTempVar( uuid, type || this.getType( builder ), ns, this.getLabel() ).name;
};
export { TempNode };