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146 lines
2.2 KiB
146 lines
2.2 KiB
( function () {
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var s = Bench.newSuite( 'Vector 3 Components' );
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THREE = {};
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THREE.Vector3 = function ( x, y, z ) {
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this.x = x || 0;
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this.y = y || 0;
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this.z = z || 0;
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};
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THREE.Vector3.prototype = {
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constructor: THREE.Vector3,
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setComponent: function ( index, value ) {
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this[ THREE.Vector3.__indexToName[ index ] ] = value;
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},
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getComponent: function ( index ) {
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return this[ THREE.Vector3.__indexToName[ index ] ];
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},
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setComponent2: function ( index, value ) {
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switch ( index ) {
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case 0:
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this.x = value;
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break;
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case 1:
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this.y = value;
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break;
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case 2:
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this.z = value;
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break;
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default:
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throw new Error( 'index is out of range: ' + index );
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}
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},
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getComponent2: function ( index ) {
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switch ( index ) {
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case 0:
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return this.x;
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case 1:
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return this.y;
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case 2:
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return this.z;
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default:
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throw new Error( 'index is out of range: ' + index );
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}
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},
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getComponent3: function ( index ) {
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if ( index === 0 ) return this.x;
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if ( index === 1 ) return this.y;
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if ( index === 2 ) return this.z;
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throw new Error( 'index is out of range: ' + index );
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},
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getComponent4: function ( index ) {
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if ( index === 0 ) return this.x; else if ( index === 1 ) return this.y; else if ( index === 2 ) return this.z;
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else
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throw new Error( 'index is out of range: ' + index );
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}
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};
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THREE.Vector3.__indexToName = {
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0: 'x',
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1: 'y',
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2: 'z'
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};
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var a = [];
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for ( var i = 0; i < 100000; i ++ ) {
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a[ i ] = new THREE.Vector3( i * 0.01, i * 2, i * - 1.3 );
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}
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s.add( 'IndexToName', function () {
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var result = 0;
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for ( var i = 0; i < 100000; i ++ ) {
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result += a[ i ].getComponent( i % 3 );
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}
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} );
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s.add( 'SwitchStatement', function () {
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var result = 0;
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for ( var i = 0; i < 100000; i ++ ) {
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result += a[ i ].getComponent2( i % 3 );
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}
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} );
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s.add( 'IfAndReturnSeries', function () {
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var result = 0;
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for ( var i = 0; i < 100000; i ++ ) {
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result += a[ i ].getComponent3( i % 3 );
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}
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} );
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s.add( 'IfReturnElseSeries', function () {
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var result = 0;
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for ( var i = 0; i < 100000; i ++ ) {
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result += a[ i ].getComponent4( i % 3 );
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}
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} );
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} )();
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