"use strict";
Object.defineProperty(exports, Symbol.toStringTag, { value: "Module" });
const three_module = require("../../../build/three.module.js");
const _changeEvent = { type: "change" };
const _startEvent = { type: "start" };
const _endEvent = { type: "end" };
class OrbitControls extends three_module.EventDispatcher {
  constructor(object, domElement) {
    super();
    this.object = object;
    this.domElement = domElement;
    this.domElement.style.touchAction = "none";
    this.enabled = true;
    this.target = new three_module.Vector3();
    this.minDistance = 0;
    this.maxDistance = Infinity;
    this.minZoom = 0;
    this.maxZoom = Infinity;
    this.minPolarAngle = 0;
    this.maxPolarAngle = Math.PI;
    this.minAzimuthAngle = -Infinity;
    this.maxAzimuthAngle = Infinity;
    this.enableDamping = false;
    this.dampingFactor = 0.05;
    this.enableZoom = true;
    this.zoomSpeed = 1;
    this.enableRotate = true;
    this.rotateSpeed = 1;
    this.enablePan = true;
    this.panSpeed = 1;
    this.screenSpacePanning = true;
    this.keyPanSpeed = 7;
    this.autoRotate = false;
    this.autoRotateSpeed = 2;
    this.keys = { LEFT: "ArrowLeft", UP: "ArrowUp", RIGHT: "ArrowRight", BOTTOM: "ArrowDown" };
    this.mouseButtons = { LEFT: three_module.MOUSE.ROTATE, MIDDLE: three_module.MOUSE.DOLLY, RIGHT: three_module.MOUSE.PAN };
    this.touches = { ONE: three_module.TOUCH.ROTATE, TWO: three_module.TOUCH.DOLLY_PAN };
    this.target0 = this.target.clone();
    this.position0 = this.object.position.clone();
    this.zoom0 = this.object.zoom;
    this._domElementKeyEvents = null;
    this.getPolarAngle = function() {
      return spherical.phi;
    };
    this.getAzimuthalAngle = function() {
      return spherical.theta;
    };
    this.getDistance = function() {
      return this.object.position.distanceTo(this.target);
    };
    this.listenToKeyEvents = function(domElement2) {
      domElement2.addEventListener("keydown", onKeyDown);
      this._domElementKeyEvents = domElement2;
    };
    this.saveState = function() {
      scope.target0.copy(scope.target);
      scope.position0.copy(scope.object.position);
      scope.zoom0 = scope.object.zoom;
    };
    this.reset = function() {
      scope.target.copy(scope.target0);
      scope.object.position.copy(scope.position0);
      scope.object.zoom = scope.zoom0;
      scope.object.updateProjectionMatrix();
      scope.dispatchEvent(_changeEvent);
      scope.update();
      state = STATE.NONE;
    };
    this.update = function() {
      const offset = new three_module.Vector3();
      const quat = new three_module.Quaternion().setFromUnitVectors(object.up, new three_module.Vector3(0, 1, 0));
      const quatInverse = quat.clone().invert();
      const lastPosition = new three_module.Vector3();
      const lastQuaternion = new three_module.Quaternion();
      const twoPI = 2 * Math.PI;
      return function update() {
        const position = scope.object.position;
        offset.copy(position).sub(scope.target);
        offset.applyQuaternion(quat);
        spherical.setFromVector3(offset);
        if (scope.autoRotate && state === STATE.NONE) {
          rotateLeft(getAutoRotationAngle());
        }
        if (scope.enableDamping) {
          spherical.theta += sphericalDelta.theta * scope.dampingFactor;
          spherical.phi += sphericalDelta.phi * scope.dampingFactor;
        } else {
          spherical.theta += sphericalDelta.theta;
          spherical.phi += sphericalDelta.phi;
        }
        let min = scope.minAzimuthAngle;
        let max = scope.maxAzimuthAngle;
        if (isFinite(min) && isFinite(max)) {
          if (min < -Math.PI)
            min += twoPI;
          else if (min > Math.PI)
            min -= twoPI;
          if (max < -Math.PI)
            max += twoPI;
          else if (max > Math.PI)
            max -= twoPI;
          if (min <= max) {
            spherical.theta = Math.max(min, Math.min(max, spherical.theta));
          } else {
            spherical.theta = spherical.theta > (min + max) / 2 ? Math.max(min, spherical.theta) : Math.min(max, spherical.theta);
          }
        }
        spherical.phi = Math.max(scope.minPolarAngle, Math.min(scope.maxPolarAngle, spherical.phi));
        spherical.makeSafe();
        spherical.radius *= scale;
        spherical.radius = Math.max(scope.minDistance, Math.min(scope.maxDistance, spherical.radius));
        if (scope.enableDamping === true) {
          scope.target.addScaledVector(panOffset, scope.dampingFactor);
        } else {
          scope.target.add(panOffset);
        }
        offset.setFromSpherical(spherical);
        offset.applyQuaternion(quatInverse);
        position.copy(scope.target).add(offset);
        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;
        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);
      scope.domElement.removeEventListener("pointerdown", onPointerDown);
      scope.domElement.removeEventListener("pointercancel", onPointerCancel);
      scope.domElement.removeEventListener("wheel", onMouseWheel);
      scope.domElement.removeEventListener("pointermove", onPointerMove);
      scope.domElement.removeEventListener("pointerup", onPointerUp);
      if (scope._domElementKeyEvents !== null) {
        scope._domElementKeyEvents.removeEventListener("keydown", onKeyDown);
      }
    };
    const scope = this;
    const STATE = {
      NONE: -1,
      ROTATE: 0,
      DOLLY: 1,
      PAN: 2,
      TOUCH_ROTATE: 3,
      TOUCH_PAN: 4,
      TOUCH_DOLLY_PAN: 5,
      TOUCH_DOLLY_ROTATE: 6
    };
    let state = STATE.NONE;
    const EPS = 1e-6;
    const spherical = new three_module.Spherical();
    const sphericalDelta = new three_module.Spherical();
    let scale = 1;
    const panOffset = new three_module.Vector3();
    let zoomChanged = false;
    const rotateStart = new three_module.Vector2();
    const rotateEnd = new three_module.Vector2();
    const rotateDelta = new three_module.Vector2();
    const panStart = new three_module.Vector2();
    const panEnd = new three_module.Vector2();
    const panDelta = new three_module.Vector2();
    const dollyStart = new three_module.Vector2();
    const dollyEnd = new three_module.Vector2();
    const dollyDelta = new three_module.Vector2();
    const pointers = [];
    const pointerPositions = {};
    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;
    }
    const panLeft = function() {
      const v = new three_module.Vector3();
      return function panLeft2(distance, objectMatrix) {
        v.setFromMatrixColumn(objectMatrix, 0);
        v.multiplyScalar(-distance);
        panOffset.add(v);
      };
    }();
    const panUp = function() {
      const v = new three_module.Vector3();
      return function panUp2(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);
      };
    }();
    const pan = function() {
      const offset = new three_module.Vector3();
      return function pan2(deltaX, deltaY) {
        const element = scope.domElement;
        if (scope.object.isPerspectiveCamera) {
          const position = scope.object.position;
          offset.copy(position).sub(scope.target);
          let targetDistance = offset.length();
          targetDistance *= Math.tan(scope.object.fov / 2 * Math.PI / 180);
          panLeft(2 * deltaX * targetDistance / element.clientHeight, scope.object.matrix);
          panUp(2 * deltaY * targetDistance / element.clientHeight, scope.object.matrix);
        } else if (scope.object.isOrthographicCamera) {
          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 {
          console.warn("WARNING: OrbitControls.js encountered an unknown camera type - pan disabled.");
          scope.enablePan = 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: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.");
        scope.enableZoom = 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: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.");
        scope.enableZoom = false;
      }
    }
    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);
      const element = scope.domElement;
      rotateLeft(2 * Math.PI * rotateDelta.x / element.clientHeight);
      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) {
        dollyOut(getZoomScale());
      } else if (dollyDelta.y < 0) {
        dollyIn(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 handleMouseWheel(event) {
      if (event.deltaY < 0) {
        dollyIn(getZoomScale());
      } else if (event.deltaY > 0) {
        dollyOut(getZoomScale());
      }
      scope.update();
    }
    function handleKeyDown(event) {
      let needsUpdate = false;
      switch (event.code) {
        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) {
        event.preventDefault();
        scope.update();
      }
    }
    function handleTouchStartRotate() {
      if (pointers.length === 1) {
        rotateStart.set(pointers[0].pageX, pointers[0].pageY);
      } else {
        const x = 0.5 * (pointers[0].pageX + pointers[1].pageX);
        const y = 0.5 * (pointers[0].pageY + pointers[1].pageY);
        rotateStart.set(x, y);
      }
    }
    function handleTouchStartPan() {
      if (pointers.length === 1) {
        panStart.set(pointers[0].pageX, pointers[0].pageY);
      } else {
        const x = 0.5 * (pointers[0].pageX + pointers[1].pageX);
        const y = 0.5 * (pointers[0].pageY + pointers[1].pageY);
        panStart.set(x, y);
      }
    }
    function handleTouchStartDolly() {
      const dx = pointers[0].pageX - pointers[1].pageX;
      const dy = pointers[0].pageY - pointers[1].pageY;
      const distance = Math.sqrt(dx * dx + dy * dy);
      dollyStart.set(0, distance);
    }
    function handleTouchStartDollyPan() {
      if (scope.enableZoom)
        handleTouchStartDolly();
      if (scope.enablePan)
        handleTouchStartPan();
    }
    function handleTouchStartDollyRotate() {
      if (scope.enableZoom)
        handleTouchStartDolly();
      if (scope.enableRotate)
        handleTouchStartRotate();
    }
    function handleTouchMoveRotate(event) {
      if (pointers.length == 1) {
        rotateEnd.set(event.pageX, event.pageY);
      } else {
        const position = getSecondPointerPosition(event);
        const x = 0.5 * (event.pageX + position.x);
        const y = 0.5 * (event.pageY + position.y);
        rotateEnd.set(x, y);
      }
      rotateDelta.subVectors(rotateEnd, rotateStart).multiplyScalar(scope.rotateSpeed);
      const element = scope.domElement;
      rotateLeft(2 * Math.PI * rotateDelta.x / element.clientHeight);
      rotateUp(2 * Math.PI * rotateDelta.y / element.clientHeight);
      rotateStart.copy(rotateEnd);
    }
    function handleTouchMovePan(event) {
      if (pointers.length === 1) {
        panEnd.set(event.pageX, event.pageY);
      } else {
        const position = getSecondPointerPosition(event);
        const x = 0.5 * (event.pageX + position.x);
        const y = 0.5 * (event.pageY + position.y);
        panEnd.set(x, y);
      }
      panDelta.subVectors(panEnd, panStart).multiplyScalar(scope.panSpeed);
      pan(panDelta.x, panDelta.y);
      panStart.copy(panEnd);
    }
    function handleTouchMoveDolly(event) {
      const position = getSecondPointerPosition(event);
      const dx = event.pageX - position.x;
      const dy = event.pageY - position.y;
      const distance = Math.sqrt(dx * dx + dy * dy);
      dollyEnd.set(0, distance);
      dollyDelta.set(0, Math.pow(dollyEnd.y / dollyStart.y, scope.zoomSpeed));
      dollyOut(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 onPointerDown(event) {
      if (scope.enabled === false)
        return;
      if (pointers.length === 0) {
        scope.domElement.setPointerCapture(event.pointerId);
        scope.domElement.addEventListener("pointermove", onPointerMove);
        scope.domElement.addEventListener("pointerup", onPointerUp);
      }
      addPointer(event);
      if (event.pointerType === "touch") {
        onTouchStart(event);
      } else {
        onMouseDown(event);
      }
    }
    function onPointerMove(event) {
      if (scope.enabled === false)
        return;
      if (event.pointerType === "touch") {
        onTouchMove(event);
      } else {
        onMouseMove(event);
      }
    }
    function onPointerUp(event) {
      removePointer(event);
      if (pointers.length === 0) {
        scope.domElement.releasePointerCapture(event.pointerId);
        scope.domElement.removeEventListener("pointermove", onPointerMove);
        scope.domElement.removeEventListener("pointerup", onPointerUp);
      }
      scope.dispatchEvent(_endEvent);
      state = STATE.NONE;
    }
    function onPointerCancel(event) {
      removePointer(event);
    }
    function onMouseDown(event) {
      let 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_module.MOUSE.DOLLY:
          if (scope.enableZoom === false)
            return;
          handleMouseDownDolly(event);
          state = STATE.DOLLY;
          break;
        case three_module.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_module.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) {
        scope.dispatchEvent(_startEvent);
      }
    }
    function onMouseMove(event) {
      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 onMouseWheel(event) {
      if (scope.enabled === false || scope.enableZoom === false || state !== STATE.NONE)
        return;
      event.preventDefault();
      scope.dispatchEvent(_startEvent);
      handleMouseWheel(event);
      scope.dispatchEvent(_endEvent);
    }
    function onKeyDown(event) {
      if (scope.enabled === false || scope.enablePan === false)
        return;
      handleKeyDown(event);
    }
    function onTouchStart(event) {
      trackPointer(event);
      switch (pointers.length) {
        case 1:
          switch (scope.touches.ONE) {
            case three_module.TOUCH.ROTATE:
              if (scope.enableRotate === false)
                return;
              handleTouchStartRotate();
              state = STATE.TOUCH_ROTATE;
              break;
            case three_module.TOUCH.PAN:
              if (scope.enablePan === false)
                return;
              handleTouchStartPan();
              state = STATE.TOUCH_PAN;
              break;
            default:
              state = STATE.NONE;
          }
          break;
        case 2:
          switch (scope.touches.TWO) {
            case three_module.TOUCH.DOLLY_PAN:
              if (scope.enableZoom === false && scope.enablePan === false)
                return;
              handleTouchStartDollyPan();
              state = STATE.TOUCH_DOLLY_PAN;
              break;
            case three_module.TOUCH.DOLLY_ROTATE:
              if (scope.enableZoom === false && scope.enableRotate === false)
                return;
              handleTouchStartDollyRotate();
              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) {
      trackPointer(event);
      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 onContextMenu(event) {
      if (scope.enabled === false)
        return;
      event.preventDefault();
    }
    function addPointer(event) {
      pointers.push(event);
    }
    function removePointer(event) {
      delete pointerPositions[event.pointerId];
      for (let i = 0; i < pointers.length; i++) {
        if (pointers[i].pointerId == event.pointerId) {
          pointers.splice(i, 1);
          return;
        }
      }
    }
    function trackPointer(event) {
      let position = pointerPositions[event.pointerId];
      if (position === void 0) {
        position = new three_module.Vector2();
        pointerPositions[event.pointerId] = position;
      }
      position.set(event.pageX, event.pageY);
    }
    function getSecondPointerPosition(event) {
      const pointer = event.pointerId === pointers[0].pointerId ? pointers[1] : pointers[0];
      return pointerPositions[pointer.pointerId];
    }
    scope.domElement.addEventListener("contextmenu", onContextMenu);
    scope.domElement.addEventListener("pointerdown", onPointerDown);
    scope.domElement.addEventListener("pointercancel", onPointerCancel);
    scope.domElement.addEventListener("wheel", onMouseWheel, { passive: false });
    this.update();
  }
}
exports.OrbitControls = OrbitControls;
