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+/**
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+ * @author mrdoob / http://mrdoob.com/
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+ * @author alteredq / http://alteredqualia.com/
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+ * @author paulirish / http://paulirish.com/
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+ */
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+
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+import {
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+ Math as _Math,
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+ Spherical,
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+ Vector3
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+} from "../../../build/three.module.js";
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+
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+var FirstPersonControls = function ( object, domElement ) {
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+
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+ this.object = object;
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+
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+ this.domElement = ( domElement !== undefined ) ? domElement : document;
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+
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+ this.enabled = true;
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+
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+ this.movementSpeed = 1.0;
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+ this.lookSpeed = 0.005;
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+
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+ this.lookVertical = true;
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+ this.autoForward = false;
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+
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+ this.activeLook = true;
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+
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+ this.heightSpeed = false;
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+ this.heightCoef = 1.0;
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+ this.heightMin = 0.0;
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+ this.heightMax = 1.0;
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+
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+ this.constrainVertical = false;
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+ this.verticalMin = 0;
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+ this.verticalMax = Math.PI;
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+
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+ this.autoSpeedFactor = 0.0;
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+
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+ this.mouseX = 0;
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+ this.mouseY = 0;
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+
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+ this.moveForward = false;
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+ this.moveBackward = false;
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+ this.moveLeft = false;
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+ this.moveRight = false;
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+
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+ this.mouseDragOn = false;
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+
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+ this.viewHalfX = 0;
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+ this.viewHalfY = 0;
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+
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+ // private variables
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+
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+ var lat = 0;
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+ var lon = 0;
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+
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+ var lookDirection = new Vector3();
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+ var spherical = new Spherical();
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+ var target = new Vector3();
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+
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+ //
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+
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+ if ( this.domElement !== document ) {
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+
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+ this.domElement.setAttribute( 'tabindex', - 1 );
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+
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+ }
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+
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+ //
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+
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+ this.handleResize = function () {
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+
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+ if ( this.domElement === document ) {
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+
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+ this.viewHalfX = window.innerWidth / 2;
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+ this.viewHalfY = window.innerHeight / 2;
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+
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+ } else {
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+
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+ this.viewHalfX = this.domElement.offsetWidth / 2;
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+ this.viewHalfY = this.domElement.offsetHeight / 2;
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+
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+ }
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+
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+ };
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+
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+ this.onMouseDown = function ( event ) {
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+
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+ if ( this.domElement !== document ) {
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+
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+ this.domElement.focus();
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+
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+ }
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+
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+ event.preventDefault();
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+ event.stopPropagation();
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+
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+ if ( this.activeLook ) {
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+
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+ switch ( event.button ) {
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+
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+ case 0: this.moveForward = true; break;
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+ case 2: this.moveBackward = true; break;
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+
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+ }
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+
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+ }
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+
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+ this.mouseDragOn = true;
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+
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+ };
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+
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+ this.onMouseUp = function ( event ) {
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+
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+ event.preventDefault();
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+ event.stopPropagation();
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+
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+ if ( this.activeLook ) {
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+
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+ switch ( event.button ) {
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+
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+ case 0: this.moveForward = false; break;
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+ case 2: this.moveBackward = false; break;
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+
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+ }
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+
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+ }
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+
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+ this.mouseDragOn = false;
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+
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+ };
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+
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+ this.onMouseMove = function ( event ) {
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+
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+ if ( this.domElement === document ) {
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+
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+ this.mouseX = event.pageX - this.viewHalfX;
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+ this.mouseY = event.pageY - this.viewHalfY;
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+
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+ } else {
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+
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+ this.mouseX = event.pageX - this.domElement.offsetLeft - this.viewHalfX;
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+ this.mouseY = event.pageY - this.domElement.offsetTop - this.viewHalfY;
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+
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+ }
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+
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+ };
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+
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+ this.onKeyDown = function ( event ) {
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+
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+ //event.preventDefault();
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+
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+ switch ( event.keyCode ) {
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+
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+ case 38: /*up*/
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+ case 87: /*W*/ this.moveForward = true; break;
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+
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+ case 37: /*left*/
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+ case 65: /*A*/ this.moveLeft = true; break;
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+
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+ case 40: /*down*/
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+ case 83: /*S*/ this.moveBackward = true; break;
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+
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+ case 39: /*right*/
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+ case 68: /*D*/ this.moveRight = true; break;
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+
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+ case 82: /*R*/ this.moveUp = true; break;
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+ case 70: /*F*/ this.moveDown = true; break;
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+
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+ }
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+
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+ };
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+
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+ this.onKeyUp = function ( event ) {
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+
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+ switch ( event.keyCode ) {
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+
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+ case 38: /*up*/
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+ case 87: /*W*/ this.moveForward = false; break;
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+
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+ case 37: /*left*/
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+ case 65: /*A*/ this.moveLeft = false; break;
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+
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+ case 40: /*down*/
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+ case 83: /*S*/ this.moveBackward = false; break;
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+
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+ case 39: /*right*/
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+ case 68: /*D*/ this.moveRight = false; break;
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+
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+ case 82: /*R*/ this.moveUp = false; break;
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+ case 70: /*F*/ this.moveDown = false; break;
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+
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+ }
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+
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+ };
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+
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+ this.lookAt = function ( x, y, z ) {
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+
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+ if ( x.isVector3 ) {
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+
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+ target.copy( x );
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+
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+ } else {
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+
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+ target.set( x, y, z );
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+
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+ }
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+
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+ this.object.lookAt( target );
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+
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+ setOrientation( this );
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+
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+ return this;
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+
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+ };
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+
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+ this.update = function () {
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+
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+ var targetPosition = new Vector3();
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+
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+ return function update( delta ) {
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+
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+ if ( this.enabled === false ) return;
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+
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+ if ( this.heightSpeed ) {
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+
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+ var y = _Math.clamp( this.object.position.y, this.heightMin, this.heightMax );
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+ var heightDelta = y - this.heightMin;
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+
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+ this.autoSpeedFactor = delta * ( heightDelta * this.heightCoef );
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+
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+ } else {
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+
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+ this.autoSpeedFactor = 0.0;
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+
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+ }
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+
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+ var actualMoveSpeed = delta * this.movementSpeed;
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+
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+ if ( this.moveForward || ( this.autoForward && ! this.moveBackward ) ) this.object.translateZ( - ( actualMoveSpeed + this.autoSpeedFactor ) );
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+ if ( this.moveBackward ) this.object.translateZ( actualMoveSpeed );
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+
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+ if ( this.moveLeft ) this.object.translateX( - actualMoveSpeed );
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+ if ( this.moveRight ) this.object.translateX( actualMoveSpeed );
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+
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+ if ( this.moveUp ) this.object.translateY( actualMoveSpeed );
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+ if ( this.moveDown ) this.object.translateY( - actualMoveSpeed );
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+
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+ var actualLookSpeed = delta * this.lookSpeed;
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+
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+ if ( ! this.activeLook ) {
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+
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+ actualLookSpeed = 0;
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+
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+ }
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+
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+ var verticalLookRatio = 1;
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+
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+ if ( this.constrainVertical ) {
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+
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+ verticalLookRatio = Math.PI / ( this.verticalMax - this.verticalMin );
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+
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+ }
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+
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+ lon -= this.mouseX * actualLookSpeed;
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+ if ( this.lookVertical ) lat -= this.mouseY * actualLookSpeed * verticalLookRatio;
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+
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+ lat = Math.max( - 85, Math.min( 85, lat ) );
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+
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+ var phi = _Math.degToRad( 90 - lat );
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+ var theta = _Math.degToRad( lon );
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+
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+ if ( this.constrainVertical ) {
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+
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+ phi = _Math.mapLinear( phi, 0, Math.PI, this.verticalMin, this.verticalMax );
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+
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+ }
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+
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+ var position = this.object.position;
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+
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+ targetPosition.setFromSphericalCoords( 1, phi, theta ).add( position );
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+
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+ this.object.lookAt( targetPosition );
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+
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+ };
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+
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+ }();
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+
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+ function contextmenu( event ) {
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+
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+ event.preventDefault();
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+
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+ }
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+
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+ this.dispose = function () {
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+
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+ this.domElement.removeEventListener( 'contextmenu', contextmenu, false );
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+ this.domElement.removeEventListener( 'mousedown', _onMouseDown, false );
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+ this.domElement.removeEventListener( 'mousemove', _onMouseMove, false );
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+ this.domElement.removeEventListener( 'mouseup', _onMouseUp, false );
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+
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+ window.removeEventListener( 'keydown', _onKeyDown, false );
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+ window.removeEventListener( 'keyup', _onKeyUp, false );
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+
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+ };
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+
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+ var _onMouseMove = bind( this, this.onMouseMove );
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+ var _onMouseDown = bind( this, this.onMouseDown );
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+ var _onMouseUp = bind( this, this.onMouseUp );
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+ var _onKeyDown = bind( this, this.onKeyDown );
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+ var _onKeyUp = bind( this, this.onKeyUp );
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+
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+ this.domElement.addEventListener( 'contextmenu', contextmenu, false );
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+ this.domElement.addEventListener( 'mousemove', _onMouseMove, false );
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+ this.domElement.addEventListener( 'mousedown', _onMouseDown, false );
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+ this.domElement.addEventListener( 'mouseup', _onMouseUp, false );
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+
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+ window.addEventListener( 'keydown', _onKeyDown, false );
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+ window.addEventListener( 'keyup', _onKeyUp, false );
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+
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+ function bind( scope, fn ) {
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+
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+ return function () {
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+
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+ fn.apply( scope, arguments );
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+
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+ };
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+
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+ }
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+
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+ function setOrientation( controls ) {
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+
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+ var quaternion = controls.object.quaternion;
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+
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+ lookDirection.set( 0, 0, - 1 ).applyQuaternion( quaternion );
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+ spherical.setFromVector3( lookDirection );
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+
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+ lat = 90 - _Math.radToDeg( spherical.phi );
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+ lon = _Math.radToDeg( spherical.theta );
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+
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+ }
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+
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+ this.handleResize();
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+
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+ setOrientation( this );
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+
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+};
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+
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+export { FirstPersonControls };
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