(function (global, factory) {
  if (typeof define === "function" && define.amd) {
    define(["exports", "three"], factory);
  } else if (typeof exports !== "undefined") {
    factory(exports, require("three"));
  } else {
    var mod = {
      exports: {}
    };
    factory(mod.exports, global.three);
    global.CameraControls = mod.exports;
  }
})(typeof globalThis !== "undefined" ? globalThis : typeof self !== "undefined" ? self : this, function (_exports, _three) {
  "use strict";

  Object.defineProperty(_exports, "__esModule", {
    value: true
  });
  _exports.TrackballControls = _exports.OrbitControls = _exports.MapControls = _exports.CameraControls = void 0;

  var CameraControls = function CameraControls(object, domElement) {
    if (domElement === undefined) console.warn('THREE.CameraControls: The second parameter "domElement" is now mandatory.');
    if (domElement === document) console.error('THREE.CameraControls: "document" should not be used as the target "domElement". Please use "renderer.domElement" instead.');
    this.object = object;
    this.domElement = domElement; // Set to false to disable this control

    this.enabled = true; // "target" sets the location of focus, where the object orbits around

    this.target = new _three.Vector3(); // Set to true to enable trackball behavior

    this.trackball = false; // How far you can dolly in and out ( PerspectiveCamera only )

    this.minDistance = 0;
    this.maxDistance = Infinity; // How far you can zoom in and out ( OrthographicCamera only )

    this.minZoom = 0;
    this.maxZoom = Infinity; // How far you can orbit vertically, upper and lower limits.
    // Range is 0 to Math.PI radians.

    this.minPolarAngle = 0; // radians

    this.maxPolarAngle = Math.PI; // radians
    // How far you can orbit horizontally, upper and lower limits.
    // If set, must be a sub-interval of the interval [ - Math.PI, Math.PI ].

    this.minAzimuthAngle = -Infinity; // radians

    this.maxAzimuthAngle = Infinity; // radians
    // Set to true to enable damping (inertia)
    // If damping is enabled, you must call controls.update() in your animation loop

    this.enableDamping = false;
    this.dampingFactor = 0.05; // This option enables dollying in and out; property named as "zoom" for backwards compatibility
    // Set to false to disable zooming

    this.enableZoom = true;
    this.zoomSpeed = 1.0; // Set to false to disable rotating

    this.enableRotate = true;
    this.rotateSpeed = 1.0; // Set to false to disable panning

    this.enablePan = true;
    this.panSpeed = 1.0;
    this.screenSpacePanning = false; // if true, pan in screen-space

    this.keyPanSpeed = 7.0; // pixels moved per arrow key push
    // Set to true to automatically rotate around the target
    // If auto-rotate is enabled, you must call controls.update() in your animation loop
    // auto-rotate is not supported for trackball behavior

    this.autoRotate = false;
    this.autoRotateSpeed = 2.0; // 30 seconds per round when fps is 60
    // Set to false to disable use of the keys

    this.enableKeys = true; // The four arrow keys

    this.keys = {
      LEFT: 37,
      UP: 38,
      RIGHT: 39,
      BOTTOM: 40
    }; // Mouse buttons

    this.mouseButtons = {
      LEFT: _three.MOUSE.ROTATE,
      MIDDLE: _three.MOUSE.DOLLY,
      RIGHT: _three.MOUSE.PAN
    }; // Touch fingers

    this.touches = {
      ONE: _three.TOUCH.ROTATE,
      TWO: _three.TOUCH.DOLLY_PAN
    }; // for reset

    this.target0 = this.target.clone();
    this.position0 = this.object.position.clone();
    this.quaternion0 = this.object.quaternion.clone();
    this.zoom0 = this.object.zoom; //
    // public methods
    //

    this.getPolarAngle = function () {
      return spherical.phi;
    };

    this.getAzimuthalAngle = function () {
      return spherical.theta;
    };

    this.saveState = function () {
      scope.target0.copy(scope.target);
      scope.position0.copy(scope.object.position);
      scope.quaternion0.copy(scope.object.quaternion);
      scope.zoom0 = scope.object.zoom;
    };

    this.reset = function () {
      scope.target.copy(scope.target0);
      scope.object.position.copy(scope.position0);
      scope.object.quaternion.copy(scope.quaternion0);
      scope.object.zoom = scope.zoom0;
      scope.object.updateProjectionMatrix();
      scope.dispatchEvent(changeEvent);
      scope.update();
      state = STATE.NONE;
    }; // this method is exposed, but perhaps it would be better if we can make it private...


    this.update = function () {
      var offset = new _three.Vector3(); // so camera.up is the orbit axis

      var quat = new _three.Quaternion().setFromUnitVectors(object.up, new _three.Vector3(0, 1, 0));
      var quatInverse = quat.clone().invert();
      var lastPosition = new _three.Vector3();
      var lastQuaternion = new _three.Quaternion();
      var q = new _three.Quaternion();
      var vec = new _three.Vector3();
      return function update() {
        var position = scope.object.position;
        offset.copy(position).sub(scope.target);

        if (scope.trackball) {
          // rotate around screen-space y-axis
          if (sphericalDelta.theta) {
            vec.set(0, 1, 0).applyQuaternion(scope.object.quaternion);
            var factor = scope.enableDamping ? scope.dampingFactor : 1;
            q.setFromAxisAngle(vec, sphericalDelta.theta * factor);
            scope.object.quaternion.premultiply(q);
            offset.applyQuaternion(q);
          } // rotate around screen-space x-axis


          if (sphericalDelta.phi) {
            vec.set(1, 0, 0).applyQuaternion(scope.object.quaternion);
            var factor = scope.enableDamping ? scope.dampingFactor : 1;
            q.setFromAxisAngle(vec, sphericalDelta.phi * factor);
            scope.object.quaternion.premultiply(q);
            offset.applyQuaternion(q);
          }

          offset.multiplyScalar(scale);
          offset.clampLength(scope.minDistance, scope.maxDistance);
        } else {
          // rotate offset to "y-axis-is-up" space
          offset.applyQuaternion(quat);

          if (scope.autoRotate && state === STATE.NONE) {
            rotateLeft(getAutoRotationAngle());
          }

          spherical.setFromVector3(offset);

          if (scope.enableDamping) {
            spherical.theta += sphericalDelta.theta * scope.dampingFactor;
            spherical.phi += sphericalDelta.phi * scope.dampingFactor;
          } else {
            spherical.theta += sphericalDelta.theta;
            spherical.phi += sphericalDelta.phi;
          } // restrict theta to be between desired limits


          spherical.theta = Math.max(scope.minAzimuthAngle, Math.min(scope.maxAzimuthAngle, spherical.theta)); // restrict phi to be between desired limits

          spherical.phi = Math.max(scope.minPolarAngle, Math.min(scope.maxPolarAngle, spherical.phi));
          spherical.makeSafe();
          spherical.radius *= scale; // restrict radius to be between desired limits

          spherical.radius = Math.max(scope.minDistance, Math.min(scope.maxDistance, spherical.radius));
          offset.setFromSpherical(spherical); // rotate offset back to "camera-up-vector-is-up" space

          offset.applyQuaternion(quatInverse);
        } // move target to panned location


        if (scope.enableDamping === true) {
          scope.target.addScaledVector(panOffset, scope.dampingFactor);
        } else {
          scope.target.add(panOffset);
        }

        position.copy(scope.target).add(offset);

        if (scope.trackball === false) {
          scope.object.lookAt(scope.target);
        }

        if (scope.enableDamping === true) {
          sphericalDelta.theta *= 1 - scope.dampingFactor;
          sphericalDelta.phi *= 1 - scope.dampingFactor;
          panOffset.multiplyScalar(1 - scope.dampingFactor);
        } else {
          sphericalDelta.set(0, 0, 0);
          panOffset.set(0, 0, 0);
        }

        scale = 1; // update condition is:
        // min(camera displacement, camera rotation in radians)^2 > EPS
        // using small-angle approximation cos(x/2) = 1 - x^2 / 8

        if (zoomChanged || lastPosition.distanceToSquared(scope.object.position) > EPS || 8 * (1 - lastQuaternion.dot(scope.object.quaternion)) > EPS) {
          scope.dispatchEvent(changeEvent);
          lastPosition.copy(scope.object.position);
          lastQuaternion.copy(scope.object.quaternion);
          zoomChanged = false;
          return true;
        }

        return false;
      };
    }();

    this.dispose = function () {
      scope.domElement.removeEventListener('contextmenu', onContextMenu, false);
      scope.domElement.removeEventListener('mousedown', onMouseDown, false);
      scope.domElement.removeEventListener('wheel', onMouseWheel, false);
      scope.domElement.removeEventListener('touchstart', onTouchStart, false);
      scope.domElement.removeEventListener('touchend', onTouchEnd, false);
      scope.domElement.removeEventListener('touchmove', onTouchMove, false);
      document.removeEventListener('mousemove', onMouseMove, false);
      document.removeEventListener('mouseup', onMouseUp, false);
      scope.domElement.removeEventListener('keydown', onKeyDown, false); //scope.dispatchEvent( { type: 'dispose' } ); // should this be added here?
    }; //
    // internals
    //


    var scope = this;
    var changeEvent = {
      type: 'change'
    };
    var startEvent = {
      type: 'start'
    };
    var endEvent = {
      type: 'end'
    };
    var STATE = {
      NONE: -1,
      ROTATE: 0,
      DOLLY: 1,
      PAN: 2,
      TOUCH_ROTATE: 3,
      TOUCH_PAN: 4,
      TOUCH_DOLLY_PAN: 5,
      TOUCH_DOLLY_ROTATE: 6
    };
    var state = STATE.NONE;
    var EPS = 0.000001; // current position in spherical coordinates

    var spherical = new _three.Spherical();
    var sphericalDelta = new _three.Spherical();
    var scale = 1;
    var panOffset = new _three.Vector3();
    var zoomChanged = false;
    var rotateStart = new _three.Vector2();
    var rotateEnd = new _three.Vector2();
    var rotateDelta = new _three.Vector2();
    var panStart = new _three.Vector2();
    var panEnd = new _three.Vector2();
    var panDelta = new _three.Vector2();
    var dollyStart = new _three.Vector2();
    var dollyEnd = new _three.Vector2();
    var dollyDelta = new _three.Vector2();

    function getAutoRotationAngle() {
      return 2 * Math.PI / 60 / 60 * scope.autoRotateSpeed;
    }

    function getZoomScale() {
      return Math.pow(0.95, scope.zoomSpeed);
    }

    function rotateLeft(angle) {
      sphericalDelta.theta -= angle;
    }

    function rotateUp(angle) {
      sphericalDelta.phi -= angle;
    }

    var panLeft = function () {
      var v = new _three.Vector3();
      return function panLeft(distance, objectMatrix) {
        v.setFromMatrixColumn(objectMatrix, 0); // get X column of objectMatrix

        v.multiplyScalar(-distance);
        panOffset.add(v);
      };
    }();

    var panUp = function () {
      var v = new _three.Vector3();
      return function panUp(distance, objectMatrix) {
        if (scope.screenSpacePanning === true) {
          v.setFromMatrixColumn(objectMatrix, 1);
        } else {
          v.setFromMatrixColumn(objectMatrix, 0);
          v.crossVectors(scope.object.up, v);
        }

        v.multiplyScalar(distance);
        panOffset.add(v);
      };
    }(); // deltaX and deltaY are in pixels; right and down are positive


    var pan = function () {
      var offset = new _three.Vector3();
      return function pan(deltaX, deltaY) {
        var element = scope.domElement;

        if (scope.object.isPerspectiveCamera) {
          // perspective
          var position = scope.object.position;
          offset.copy(position).sub(scope.target);
          var targetDistance = offset.length(); // half of the fov is center to top of screen

          targetDistance *= Math.tan(scope.object.fov / 2 * Math.PI / 180.0); // we use only clientHeight here so aspect ratio does not distort speed

          panLeft(2 * deltaX * targetDistance / element.clientHeight, scope.object.matrix);
          panUp(2 * deltaY * targetDistance / element.clientHeight, scope.object.matrix);
        } else if (scope.object.isOrthographicCamera) {
          // orthographic
          panLeft(deltaX * (scope.object.right - scope.object.left) / scope.object.zoom / element.clientWidth, scope.object.matrix);
          panUp(deltaY * (scope.object.top - scope.object.bottom) / scope.object.zoom / element.clientHeight, scope.object.matrix);
        } else {
          // camera neither orthographic nor perspective
          console.warn('WARNING: CameraControls.js encountered an unknown camera type - pan disabled.');
          scope.enablePan = false;
        }
      };
    }();

    function dollyIn(dollyScale) {
      if (scope.object.isPerspectiveCamera) {
        scale /= dollyScale;
      } else if (scope.object.isOrthographicCamera) {
        scope.object.zoom = Math.max(scope.minZoom, Math.min(scope.maxZoom, scope.object.zoom * dollyScale));
        scope.object.updateProjectionMatrix();
        zoomChanged = true;
      } else {
        console.warn('WARNING: CameraControls.js encountered an unknown camera type - dolly/zoom disabled.');
        scope.enableZoom = false;
      }
    }

    function dollyOut(dollyScale) {
      if (scope.object.isPerspectiveCamera) {
        scale *= dollyScale;
      } else if (scope.object.isOrthographicCamera) {
        scope.object.zoom = Math.max(scope.minZoom, Math.min(scope.maxZoom, scope.object.zoom / dollyScale));
        scope.object.updateProjectionMatrix();
        zoomChanged = true;
      } else {
        console.warn('WARNING: CameraControls.js encountered an unknown camera type - dolly/zoom disabled.');
        scope.enableZoom = false;
      }
    } //
    // event callbacks - update the object state
    //


    function handleMouseDownRotate(event) {
      rotateStart.set(event.clientX, event.clientY);
    }

    function handleMouseDownDolly(event) {
      dollyStart.set(event.clientX, event.clientY);
    }

    function handleMouseDownPan(event) {
      panStart.set(event.clientX, event.clientY);
    }

    function handleMouseMoveRotate(event) {
      rotateEnd.set(event.clientX, event.clientY);
      rotateDelta.subVectors(rotateEnd, rotateStart).multiplyScalar(scope.rotateSpeed);
      var element = scope.domElement;
      rotateLeft(2 * Math.PI * rotateDelta.x / element.clientHeight); // yes, height

      rotateUp(2 * Math.PI * rotateDelta.y / element.clientHeight);
      rotateStart.copy(rotateEnd);
      scope.update();
    }

    function handleMouseMoveDolly(event) {
      dollyEnd.set(event.clientX, event.clientY);
      dollyDelta.subVectors(dollyEnd, dollyStart);

      if (dollyDelta.y > 0) {
        dollyIn(getZoomScale());
      } else if (dollyDelta.y < 0) {
        dollyOut(getZoomScale());
      }

      dollyStart.copy(dollyEnd);
      scope.update();
    }

    function handleMouseMovePan(event) {
      panEnd.set(event.clientX, event.clientY);
      panDelta.subVectors(panEnd, panStart).multiplyScalar(scope.panSpeed);
      pan(panDelta.x, panDelta.y);
      panStart.copy(panEnd);
      scope.update();
    }

    function
      /*event*/
    handleMouseUp() {// no-op
    }

    function handleMouseWheel(event) {
      if (event.deltaY < 0) {
        dollyOut(getZoomScale());
      } else if (event.deltaY > 0) {
        dollyIn(getZoomScale());
      }

      scope.update();
    }

    function handleKeyDown(event) {
      var needsUpdate = false;

      switch (event.keyCode) {
        case scope.keys.UP:
          pan(0, scope.keyPanSpeed);
          needsUpdate = true;
          break;

        case scope.keys.BOTTOM:
          pan(0, -scope.keyPanSpeed);
          needsUpdate = true;
          break;

        case scope.keys.LEFT:
          pan(scope.keyPanSpeed, 0);
          needsUpdate = true;
          break;

        case scope.keys.RIGHT:
          pan(-scope.keyPanSpeed, 0);
          needsUpdate = true;
          break;
      }

      if (needsUpdate) {
        // prevent the browser from scrolling on cursor keys
        event.preventDefault();
        scope.update();
      }
    }

    function handleTouchStartRotate(event) {
      if (event.touches.length == 1) {
        rotateStart.set(event.touches[0].pageX, event.touches[0].pageY);
      } else {
        var x = 0.5 * (event.touches[0].pageX + event.touches[1].pageX);
        var y = 0.5 * (event.touches[0].pageY + event.touches[1].pageY);
        rotateStart.set(x, y);
      }
    }

    function handleTouchStartPan(event) {
      if (event.touches.length == 1) {
        panStart.set(event.touches[0].pageX, event.touches[0].pageY);
      } else {
        var x = 0.5 * (event.touches[0].pageX + event.touches[1].pageX);
        var y = 0.5 * (event.touches[0].pageY + event.touches[1].pageY);
        panStart.set(x, y);
      }
    }

    function handleTouchStartDolly(event) {
      var dx = event.touches[0].pageX - event.touches[1].pageX;
      var dy = event.touches[0].pageY - event.touches[1].pageY;
      var distance = Math.sqrt(dx * dx + dy * dy);
      dollyStart.set(0, distance);
    }

    function handleTouchStartDollyPan(event) {
      if (scope.enableZoom) handleTouchStartDolly(event);
      if (scope.enablePan) handleTouchStartPan(event);
    }

    function handleTouchStartDollyRotate(event) {
      if (scope.enableZoom) handleTouchStartDolly(event);
      if (scope.enableRotate) handleTouchStartRotate(event);
    }

    function handleTouchMoveRotate(event) {
      if (event.touches.length == 1) {
        rotateEnd.set(event.touches[0].pageX, event.touches[0].pageY);
      } else {
        var x = 0.5 * (event.touches[0].pageX + event.touches[1].pageX);
        var y = 0.5 * (event.touches[0].pageY + event.touches[1].pageY);
        rotateEnd.set(x, y);
      }

      rotateDelta.subVectors(rotateEnd, rotateStart).multiplyScalar(scope.rotateSpeed);
      var element = scope.domElement;
      rotateLeft(2 * Math.PI * rotateDelta.x / element.clientHeight); // yes, height

      rotateUp(2 * Math.PI * rotateDelta.y / element.clientHeight);
      rotateStart.copy(rotateEnd);
    }

    function handleTouchMovePan(event) {
      if (event.touches.length == 1) {
        panEnd.set(event.touches[0].pageX, event.touches[0].pageY);
      } else {
        var x = 0.5 * (event.touches[0].pageX + event.touches[1].pageX);
        var y = 0.5 * (event.touches[0].pageY + event.touches[1].pageY);
        panEnd.set(x, y);
      }

      panDelta.subVectors(panEnd, panStart).multiplyScalar(scope.panSpeed);
      pan(panDelta.x, panDelta.y);
      panStart.copy(panEnd);
    }

    function handleTouchMoveDolly(event) {
      var dx = event.touches[0].pageX - event.touches[1].pageX;
      var dy = event.touches[0].pageY - event.touches[1].pageY;
      var distance = Math.sqrt(dx * dx + dy * dy);
      dollyEnd.set(0, distance);
      dollyDelta.set(0, Math.pow(dollyEnd.y / dollyStart.y, scope.zoomSpeed));
      dollyIn(dollyDelta.y);
      dollyStart.copy(dollyEnd);
    }

    function handleTouchMoveDollyPan(event) {
      if (scope.enableZoom) handleTouchMoveDolly(event);
      if (scope.enablePan) handleTouchMovePan(event);
    }

    function handleTouchMoveDollyRotate(event) {
      if (scope.enableZoom) handleTouchMoveDolly(event);
      if (scope.enableRotate) handleTouchMoveRotate(event);
    }

    function
      /*event*/
    handleTouchEnd() {// no-op
    } //
    // event handlers - FSM: listen for events and reset state
    //


    function onMouseDown(event) {
      if (scope.enabled === false) return; // Prevent the browser from scrolling.

      event.preventDefault(); // Manually set the focus since calling preventDefault above
      // prevents the browser from setting it automatically.

      scope.domElement.focus ? scope.domElement.focus() : window.focus();
      var mouseAction;

      switch (event.button) {
        case 0:
          mouseAction = scope.mouseButtons.LEFT;
          break;

        case 1:
          mouseAction = scope.mouseButtons.MIDDLE;
          break;

        case 2:
          mouseAction = scope.mouseButtons.RIGHT;
          break;

        default:
          mouseAction = -1;
      }

      switch (mouseAction) {
        case _three.MOUSE.DOLLY:
          if (scope.enableZoom === false) return;
          handleMouseDownDolly(event);
          state = STATE.DOLLY;
          break;

        case _three.MOUSE.ROTATE:
          if (event.ctrlKey || event.metaKey || event.shiftKey) {
            if (scope.enablePan === false) return;
            handleMouseDownPan(event);
            state = STATE.PAN;
          } else {
            if (scope.enableRotate === false) return;
            handleMouseDownRotate(event);
            state = STATE.ROTATE;
          }

          break;

        case _three.MOUSE.PAN:
          if (event.ctrlKey || event.metaKey || event.shiftKey) {
            if (scope.enableRotate === false) return;
            handleMouseDownRotate(event);
            state = STATE.ROTATE;
          } else {
            if (scope.enablePan === false) return;
            handleMouseDownPan(event);
            state = STATE.PAN;
          }

          break;

        default:
          state = STATE.NONE;
      }

      if (state !== STATE.NONE) {
        document.addEventListener('mousemove', onMouseMove, false);
        document.addEventListener('mouseup', onMouseUp, false);
        scope.dispatchEvent(startEvent);
      }
    }

    function onMouseMove(event) {
      if (scope.enabled === false) return;
      event.preventDefault();

      switch (state) {
        case STATE.ROTATE:
          if (scope.enableRotate === false) return;
          handleMouseMoveRotate(event);
          break;

        case STATE.DOLLY:
          if (scope.enableZoom === false) return;
          handleMouseMoveDolly(event);
          break;

        case STATE.PAN:
          if (scope.enablePan === false) return;
          handleMouseMovePan(event);
          break;
      }
    }

    function onMouseUp(event) {
      if (scope.enabled === false) return;
      handleMouseUp(event);
      document.removeEventListener('mousemove', onMouseMove, false);
      document.removeEventListener('mouseup', onMouseUp, false);
      scope.dispatchEvent(endEvent);
      state = STATE.NONE;
    }

    function onMouseWheel(event) {
      if (scope.enabled === false || scope.enableZoom === false || state !== STATE.NONE && state !== STATE.ROTATE) return;
      event.preventDefault();
      event.stopPropagation();
      scope.dispatchEvent(startEvent);
      handleMouseWheel(event);
      scope.dispatchEvent(endEvent);
    }

    function onKeyDown(event) {
      if (scope.enabled === false || scope.enableKeys === false || scope.enablePan === false) return;
      handleKeyDown(event);
    }

    function onTouchStart(event) {
      if (scope.enabled === false) return;
      event.preventDefault();

      switch (event.touches.length) {
        case 1:
          switch (scope.touches.ONE) {
            case _three.TOUCH.ROTATE:
              if (scope.enableRotate === false) return;
              handleTouchStartRotate(event);
              state = STATE.TOUCH_ROTATE;
              break;

            case _three.TOUCH.PAN:
              if (scope.enablePan === false) return;
              handleTouchStartPan(event);
              state = STATE.TOUCH_PAN;
              break;

            default:
              state = STATE.NONE;
          }

          break;

        case 2:
          switch (scope.touches.TWO) {
            case _three.TOUCH.DOLLY_PAN:
              if (scope.enableZoom === false && scope.enablePan === false) return;
              handleTouchStartDollyPan(event);
              state = STATE.TOUCH_DOLLY_PAN;
              break;

            case _three.TOUCH.DOLLY_ROTATE:
              if (scope.enableZoom === false && scope.enableRotate === false) return;
              handleTouchStartDollyRotate(event);
              state = STATE.TOUCH_DOLLY_ROTATE;
              break;

            default:
              state = STATE.NONE;
          }

          break;

        default:
          state = STATE.NONE;
      }

      if (state !== STATE.NONE) {
        scope.dispatchEvent(startEvent);
      }
    }

    function onTouchMove(event) {
      if (scope.enabled === false) return;
      event.preventDefault();
      event.stopPropagation();

      switch (state) {
        case STATE.TOUCH_ROTATE:
          if (scope.enableRotate === false) return;
          handleTouchMoveRotate(event);
          scope.update();
          break;

        case STATE.TOUCH_PAN:
          if (scope.enablePan === false) return;
          handleTouchMovePan(event);
          scope.update();
          break;

        case STATE.TOUCH_DOLLY_PAN:
          if (scope.enableZoom === false && scope.enablePan === false) return;
          handleTouchMoveDollyPan(event);
          scope.update();
          break;

        case STATE.TOUCH_DOLLY_ROTATE:
          if (scope.enableZoom === false && scope.enableRotate === false) return;
          handleTouchMoveDollyRotate(event);
          scope.update();
          break;

        default:
          state = STATE.NONE;
      }
    }

    function onTouchEnd(event) {
      if (scope.enabled === false) return;
      handleTouchEnd(event);
      scope.dispatchEvent(endEvent);
      state = STATE.NONE;
    }

    function onContextMenu(event) {
      if (scope.enabled === false) return;
      event.preventDefault();
    } //


    scope.domElement.addEventListener('contextmenu', onContextMenu, false);
    scope.domElement.addEventListener('mousedown', onMouseDown, false);
    scope.domElement.addEventListener('wheel', onMouseWheel, false);
    scope.domElement.addEventListener('touchstart', onTouchStart, false);
    scope.domElement.addEventListener('touchend', onTouchEnd, false);
    scope.domElement.addEventListener('touchmove', onTouchMove, false);
    scope.domElement.addEventListener('keydown', onKeyDown, false); // make sure element can receive keys.

    if (scope.domElement.tabIndex === -1) {
      scope.domElement.tabIndex = 0;
    } // force an update at start


    this.object.lookAt(scope.target);
    this.update();
    this.saveState();
  };

  _exports.CameraControls = CameraControls;
  CameraControls.prototype = Object.create(_three.EventDispatcher.prototype);
  CameraControls.prototype.constructor = CameraControls; // OrbitControls maintains the "up" direction, camera.up (+Y by default).
  //
  //    Orbit - left mouse / touch: one-finger move
  //    Zoom - middle mouse, or mousewheel / touch: two-finger spread or squish
  //    Pan - right mouse, or left mouse + ctrl/meta/shiftKey, or arrow keys / touch: two-finger move

  var OrbitControls = function OrbitControls(object, domElement) {
    CameraControls.call(this, object, domElement);
    this.mouseButtons.LEFT = _three.MOUSE.ROTATE;
    this.mouseButtons.RIGHT = _three.MOUSE.PAN;
    this.touches.ONE = _three.TOUCH.ROTATE;
    this.touches.TWO = _three.TOUCH.DOLLY_PAN;
  };

  _exports.OrbitControls = OrbitControls;
  OrbitControls.prototype = Object.create(_three.EventDispatcher.prototype);
  OrbitControls.prototype.constructor = OrbitControls; // MapControls maintains the "up" direction, camera.up (+Y by default)
  //
  //    Orbit - right mouse, or left mouse + ctrl/meta/shiftKey / touch: two-finger rotate
  //    Zoom - middle mouse, or mousewheel / touch: two-finger spread or squish
  //    Pan - left mouse, or left right + ctrl/meta/shiftKey, or arrow keys / touch: one-finger move

  var MapControls = function MapControls(object, domElement) {
    CameraControls.call(this, object, domElement);
    this.mouseButtons.LEFT = _three.MOUSE.PAN;
    this.mouseButtons.RIGHT = _three.MOUSE.ROTATE;
    this.touches.ONE = _three.TOUCH.PAN;
    this.touches.TWO = _three.TOUCH.DOLLY_ROTATE;
  };

  _exports.MapControls = MapControls;
  MapControls.prototype = Object.create(_three.EventDispatcher.prototype);
  MapControls.prototype.constructor = MapControls; // TrackballControls allows the camera to rotate over the polls and does not maintain camera.up
  //
  //    Orbit - left mouse / touch: one-finger move
  //    Zoom - middle mouse, or mousewheel / touch: two-finger spread or squish
  //    Pan - right mouse, or left mouse + ctrl/meta/shiftKey, or arrow keys / touch: two-finger move

  var TrackballControls = function TrackballControls(object, domElement) {
    CameraControls.call(this, object, domElement);
    this.trackball = true;
    this.screenSpacePanning = true;
    this.autoRotate = false;
    this.mouseButtons.LEFT = _three.MOUSE.ROTATE;
    this.mouseButtons.RIGHT = _three.MOUSE.PAN;
    this.touches.ONE = _three.TOUCH.ROTATE;
    this.touches.TWO = _three.TOUCH.DOLLY_PAN;
  };

  _exports.TrackballControls = TrackballControls;
  TrackballControls.prototype = Object.create(_three.EventDispatcher.prototype);
  TrackballControls.prototype.constructor = TrackballControls;
});