mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-08-22 13:20:45 +02:00
279 lines
5.8 KiB
JavaScript
279 lines
5.8 KiB
JavaScript
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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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THREE.FirstPersonControls = function ( object, domElement ) {
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this.object = object;
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this.target = new THREE.Vector3( 0, 0, 0 );
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this.domElement = ( domElement !== undefined ) ? domElement : document;
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this.enabled = true;
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this.movementSpeed = 1.0;
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this.lookSpeed = 0.005;
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this.lookVertical = true;
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this.autoForward = false;
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this.activeLook = true;
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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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this.constrainVertical = false;
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this.verticalMin = 0;
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this.verticalMax = Math.PI;
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this.autoSpeedFactor = 0.0;
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this.mouseX = 0;
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this.mouseY = 0;
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this.lat = 0;
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this.lon = 0;
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this.phi = 0;
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this.theta = 0;
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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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this.mouseDragOn = false;
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this.viewHalfX = 0;
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this.viewHalfY = 0;
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if ( this.domElement !== document ) {
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this.domElement.setAttribute( 'tabindex', -1 );
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}
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//
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this.handleResize = function () {
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if ( this.domElement === document ) {
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this.viewHalfX = window.innerWidth / 2;
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this.viewHalfY = window.innerHeight / 2;
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} else {
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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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this.onMouseDown = function ( event ) {
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if ( this.domElement !== document ) {
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this.domElement.focus();
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}
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event.preventDefault();
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event.stopPropagation();
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if ( this.activeLook ) {
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switch ( event.button ) {
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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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this.mouseDragOn = true;
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};
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this.onMouseUp = function ( event ) {
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event.preventDefault();
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event.stopPropagation();
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if ( this.activeLook ) {
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switch ( event.button ) {
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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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this.mouseDragOn = false;
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};
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this.onMouseMove = function ( event ) {
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if ( this.domElement === document ) {
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this.mouseX = event.pageX - this.viewHalfX;
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this.mouseY = event.pageY - this.viewHalfY;
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} else {
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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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this.onKeyDown = function ( event ) {
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//event.preventDefault();
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switch ( event.keyCode ) {
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case 38: /*up*/
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case 87: /*W*/ this.moveForward = true; break;
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case 37: /*left*/
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case 65: /*A*/ this.moveLeft = true; break;
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case 40: /*down*/
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case 83: /*S*/ this.moveBackward = true; break;
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case 39: /*right*/
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case 68: /*D*/ this.moveRight = true; break;
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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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this.onKeyUp = function ( event ) {
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switch ( event.keyCode ) {
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case 38: /*up*/
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case 87: /*W*/ this.moveForward = false; break;
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case 37: /*left*/
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case 65: /*A*/ this.moveLeft = false; break;
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case 40: /*down*/
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case 83: /*S*/ this.moveBackward = false; break;
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case 39: /*right*/
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case 68: /*D*/ this.moveRight = false; break;
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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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this.update = function( delta ) {
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if ( this.enabled === false ) return;
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if ( this.heightSpeed ) {
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var y = THREE.Math.clamp( this.object.position.y, this.heightMin, this.heightMax );
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var heightDelta = y - this.heightMin;
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this.autoSpeedFactor = delta * ( heightDelta * this.heightCoef );
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} else {
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this.autoSpeedFactor = 0.0;
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}
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var actualMoveSpeed = delta * this.movementSpeed;
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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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if ( this.moveLeft ) this.object.translateX( - actualMoveSpeed );
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if ( this.moveRight ) this.object.translateX( actualMoveSpeed );
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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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var actualLookSpeed = delta * this.lookSpeed;
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if ( !this.activeLook ) {
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actualLookSpeed = 0;
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}
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var verticalLookRatio = 1;
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if ( this.constrainVertical ) {
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verticalLookRatio = Math.PI / ( this.verticalMax - this.verticalMin );
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}
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this.lon += this.mouseX * actualLookSpeed;
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if ( this.lookVertical ) this.lat -= this.mouseY * actualLookSpeed * verticalLookRatio;
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this.lat = Math.max( - 85, Math.min( 85, this.lat ) );
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this.phi = THREE.Math.degToRad( 90 - this.lat );
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this.theta = THREE.Math.degToRad( this.lon );
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if ( this.constrainVertical ) {
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this.phi = THREE.Math.mapLinear( this.phi, 0, Math.PI, this.verticalMin, this.verticalMax );
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}
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var targetPosition = this.target,
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position = this.object.position;
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targetPosition.x = position.x + 100 * Math.sin( this.phi ) * Math.cos( this.theta );
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targetPosition.y = position.y + 100 * Math.cos( this.phi );
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targetPosition.z = position.z + 100 * Math.sin( this.phi ) * Math.sin( this.theta );
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this.object.lookAt( targetPosition );
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};
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this.domElement.addEventListener( 'contextmenu', function ( event ) { event.preventDefault(); }, false );
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this.domElement.addEventListener( 'mousemove', bind( this, this.onMouseMove ), false );
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this.domElement.addEventListener( 'mousedown', bind( this, this.onMouseDown ), false );
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this.domElement.addEventListener( 'mouseup', bind( this, this.onMouseUp ), false );
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window.addEventListener( 'keydown', bind( this, this.onKeyDown ), false );
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window.addEventListener( 'keyup', bind( this, this.onKeyUp ), false );
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function bind( scope, fn ) {
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return function () {
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fn.apply( scope, arguments );
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};
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};
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this.handleResize();
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};
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