Initial project import

node_modules/three-stdlib/webxr/OculusHandPointerModel.js

@@ -0,0 +1,225 @@
+import * as THREE from "three";
+const PINCH_MAX = 0.05;
+const PINCH_THRESHOLD = 0.02;
+const PINCH_MIN = 0.01;
+const POINTER_ADVANCE_MAX = 0.02;
+const POINTER_OPACITY_MAX = 1;
+const POINTER_OPACITY_MIN = 0.4;
+const POINTER_FRONT_RADIUS = 2e-3;
+const POINTER_REAR_RADIUS = 0.01;
+const POINTER_REAR_RADIUS_MIN = 3e-3;
+const POINTER_LENGTH = 0.035;
+const POINTER_SEGMENTS = 16;
+const POINTER_RINGS = 12;
+const POINTER_HEMISPHERE_ANGLE = 110;
+const YAXIS = /* @__PURE__ */ new THREE.Vector3(0, 1, 0);
+const ZAXIS = /* @__PURE__ */ new THREE.Vector3(0, 0, 1);
+const CURSOR_RADIUS = 0.02;
+const CURSOR_MAX_DISTANCE = 1.5;
+class OculusHandPointerModel extends THREE.Object3D {
+  constructor(hand, controller) {
+    super();
+    this.hand = hand;
+    this.controller = controller;
+    this.motionController = null;
+    this.envMap = null;
+    this.mesh = null;
+    this.pointerGeometry = null;
+    this.pointerMesh = null;
+    this.pointerObject = null;
+    this.pinched = false;
+    this.attached = false;
+    this.cursorObject = null;
+    this.raycaster = null;
+    this._onConnected = this._onConnected.bind(this);
+    this._onDisconnected = this._onDisconnected.bind(this);
+    this.hand.addEventListener("connected", this._onConnected);
+    this.hand.addEventListener("disconnected", this._onDisconnected);
+  }
+  _onConnected(event) {
+    const xrInputSource = event.data;
+    if (xrInputSource.hand) {
+      this.visible = true;
+      this.xrInputSource = xrInputSource;
+      this.createPointer();
+    }
+  }
+  _onDisconnected() {
+    var _a, _b;
+    this.visible = false;
+    this.xrInputSource = null;
+    (_a = this.pointerGeometry) == null ? void 0 : _a.dispose();
+    (_b = this.pointerMesh) == null ? void 0 : _b.material.dispose();
+    this.clear();
+  }
+  _drawVerticesRing(vertices, baseVector, ringIndex) {
+    const segmentVector = baseVector.clone();
+    for (var i = 0; i < POINTER_SEGMENTS; i++) {
+      segmentVector.applyAxisAngle(ZAXIS, Math.PI * 2 / POINTER_SEGMENTS);
+      const vid = ringIndex * POINTER_SEGMENTS + i;
+      vertices[3 * vid] = segmentVector.x;
+      vertices[3 * vid + 1] = segmentVector.y;
+      vertices[3 * vid + 2] = segmentVector.z;
+    }
+  }
+  _updatePointerVertices(rearRadius) {
+    const vertices = this.pointerGeometry.attributes.position.array;
+    const frontFaceBase = new THREE.Vector3(POINTER_FRONT_RADIUS, 0, -1 * (POINTER_LENGTH - rearRadius));
+    this._drawVerticesRing(vertices, frontFaceBase, 0);
+    const rearBase = new THREE.Vector3(
+      Math.sin(Math.PI * POINTER_HEMISPHERE_ANGLE / 180) * rearRadius,
+      Math.cos(Math.PI * POINTER_HEMISPHERE_ANGLE / 180) * rearRadius,
+      0
+    );
+    for (var i = 0; i < POINTER_RINGS; i++) {
+      this._drawVerticesRing(vertices, rearBase, i + 1);
+      rearBase.applyAxisAngle(YAXIS, Math.PI * POINTER_HEMISPHERE_ANGLE / 180 / (POINTER_RINGS * -2));
+    }
+    const frontCenterIndex = POINTER_SEGMENTS * (1 + POINTER_RINGS);
+    const rearCenterIndex = POINTER_SEGMENTS * (1 + POINTER_RINGS) + 1;
+    const frontCenter = new THREE.Vector3(0, 0, -1 * (POINTER_LENGTH - rearRadius));
+    vertices[frontCenterIndex * 3] = frontCenter.x;
+    vertices[frontCenterIndex * 3 + 1] = frontCenter.y;
+    vertices[frontCenterIndex * 3 + 2] = frontCenter.z;
+    const rearCenter = new THREE.Vector3(0, 0, rearRadius);
+    vertices[rearCenterIndex * 3] = rearCenter.x;
+    vertices[rearCenterIndex * 3 + 1] = rearCenter.y;
+    vertices[rearCenterIndex * 3 + 2] = rearCenter.z;
+    this.pointerGeometry.setAttribute("position", new THREE.Float32BufferAttribute(vertices, 3));
+  }
+  createPointer() {
+    var i, j;
+    const vertices = new Array(((POINTER_RINGS + 1) * POINTER_SEGMENTS + 2) * 3).fill(0);
+    const indices = [];
+    this.pointerGeometry = new THREE.BufferGeometry();
+    this.pointerGeometry.setAttribute("position", new THREE.Float32BufferAttribute(vertices, 3));
+    this._updatePointerVertices(POINTER_REAR_RADIUS);
+    for (i = 0; i < POINTER_RINGS; i++) {
+      for (j = 0; j < POINTER_SEGMENTS - 1; j++) {
+        indices.push(i * POINTER_SEGMENTS + j, i * POINTER_SEGMENTS + j + 1, (i + 1) * POINTER_SEGMENTS + j);
+        indices.push(i * POINTER_SEGMENTS + j + 1, (i + 1) * POINTER_SEGMENTS + j + 1, (i + 1) * POINTER_SEGMENTS + j);
+      }
+      indices.push((i + 1) * POINTER_SEGMENTS - 1, i * POINTER_SEGMENTS, (i + 2) * POINTER_SEGMENTS - 1);
+      indices.push(i * POINTER_SEGMENTS, (i + 1) * POINTER_SEGMENTS, (i + 2) * POINTER_SEGMENTS - 1);
+    }
+    const frontCenterIndex = POINTER_SEGMENTS * (1 + POINTER_RINGS);
+    const rearCenterIndex = POINTER_SEGMENTS * (1 + POINTER_RINGS) + 1;
+    for (i = 0; i < POINTER_SEGMENTS - 1; i++) {
+      indices.push(frontCenterIndex, i + 1, i);
+      indices.push(rearCenterIndex, i + POINTER_SEGMENTS * POINTER_RINGS, i + POINTER_SEGMENTS * POINTER_RINGS + 1);
+    }
+    indices.push(frontCenterIndex, 0, POINTER_SEGMENTS - 1);
+    indices.push(rearCenterIndex, POINTER_SEGMENTS * (POINTER_RINGS + 1) - 1, POINTER_SEGMENTS * POINTER_RINGS);
+    const material = new THREE.MeshBasicMaterial();
+    material.transparent = true;
+    material.opacity = POINTER_OPACITY_MIN;
+    this.pointerGeometry.setIndex(indices);
+    this.pointerMesh = new THREE.Mesh(this.pointerGeometry, material);
+    this.pointerMesh.position.set(0, 0, -1 * POINTER_REAR_RADIUS);
+    this.pointerObject = new THREE.Object3D();
+    this.pointerObject.add(this.pointerMesh);
+    this.raycaster = new THREE.Raycaster();
+    const cursorGeometry = new THREE.SphereGeometry(CURSOR_RADIUS, 10, 10);
+    const cursorMaterial = new THREE.MeshBasicMaterial();
+    cursorMaterial.transparent = true;
+    cursorMaterial.opacity = POINTER_OPACITY_MIN;
+    this.cursorObject = new THREE.Mesh(cursorGeometry, cursorMaterial);
+    this.pointerObject.add(this.cursorObject);
+    this.add(this.pointerObject);
+  }
+  _updateRaycaster() {
+    if (this.raycaster) {
+      const pointerMatrix = this.pointerObject.matrixWorld;
+      const tempMatrix = new THREE.Matrix4();
+      tempMatrix.identity().extractRotation(pointerMatrix);
+      this.raycaster.ray.origin.setFromMatrixPosition(pointerMatrix);
+      this.raycaster.ray.direction.set(0, 0, -1).applyMatrix4(tempMatrix);
+    }
+  }
+  _updatePointer() {
+    this.pointerObject.visible = this.controller.visible;
+    const indexTip = this.hand.joints["index-finger-tip"];
+    const thumbTip = this.hand.joints["thumb-tip"];
+    const distance = indexTip.position.distanceTo(thumbTip.position);
+    const position = indexTip.position.clone().add(thumbTip.position).multiplyScalar(0.5);
+    this.pointerObject.position.copy(position);
+    this.pointerObject.quaternion.copy(this.controller.quaternion);
+    this.pinched = distance <= PINCH_THRESHOLD;
+    const pinchScale = (distance - PINCH_MIN) / (PINCH_MAX - PINCH_MIN);
+    const focusScale = (distance - PINCH_MIN) / (PINCH_THRESHOLD - PINCH_MIN);
+    if (pinchScale > 1) {
+      this._updatePointerVertices(POINTER_REAR_RADIUS);
+      this.pointerMesh.position.set(0, 0, -1 * POINTER_REAR_RADIUS);
+      this.pointerMesh.material.opacity = POINTER_OPACITY_MIN;
+    } else if (pinchScale > 0) {
+      const rearRadius = (POINTER_REAR_RADIUS - POINTER_REAR_RADIUS_MIN) * pinchScale + POINTER_REAR_RADIUS_MIN;
+      this._updatePointerVertices(rearRadius);
+      if (focusScale < 1) {
+        this.pointerMesh.position.set(0, 0, -1 * rearRadius - (1 - focusScale) * POINTER_ADVANCE_MAX);
+        this.pointerMesh.material.opacity = POINTER_OPACITY_MIN + (1 - focusScale) * (POINTER_OPACITY_MAX - POINTER_OPACITY_MIN);
+      } else {
+        this.pointerMesh.position.set(0, 0, -1 * rearRadius);
+        this.pointerMesh.material.opacity = POINTER_OPACITY_MIN;
+      }
+    } else {
+      this._updatePointerVertices(POINTER_REAR_RADIUS_MIN);
+      this.pointerMesh.position.set(0, 0, -1 * POINTER_REAR_RADIUS_MIN - POINTER_ADVANCE_MAX);
+      this.pointerMesh.material.opacity = POINTER_OPACITY_MAX;
+    }
+    this.cursorObject.material.opacity = this.pointerMesh.material.opacity;
+  }
+  updateMatrixWorld(force) {
+    super.updateMatrixWorld(force);
+    if (this.pointerGeometry) {
+      this._updatePointer();
+      this._updateRaycaster();
+    }
+  }
+  isPinched() {
+    return this.pinched;
+  }
+  setAttached(attached) {
+    this.attached = attached;
+  }
+  isAttached() {
+    return this.attached;
+  }
+  intersectObject(object, recursive = true) {
+    if (this.raycaster) {
+      return this.raycaster.intersectObject(object, recursive);
+    }
+  }
+  intersectObjects(objects, recursive = true) {
+    if (this.raycaster) {
+      return this.raycaster.intersectObjects(objects, recursive);
+    }
+  }
+  checkIntersections(objects, recursive = false) {
+    if (this.raycaster && !this.attached) {
+      const intersections = this.raycaster.intersectObjects(objects, recursive);
+      const direction = new THREE.Vector3(0, 0, -1);
+      if (intersections.length > 0) {
+        const intersection = intersections[0];
+        const distance = intersection.distance;
+        this.cursorObject.position.copy(direction.multiplyScalar(distance));
+      } else {
+        this.cursorObject.position.copy(direction.multiplyScalar(CURSOR_MAX_DISTANCE));
+      }
+    }
+  }
+  setCursor(distance) {
+    const direction = new THREE.Vector3(0, 0, -1);
+    if (this.raycaster && !this.attached) {
+      this.cursorObject.position.copy(direction.multiplyScalar(distance));
+    }
+  }
+  dispose() {
+    this._onDisconnected();
+    this.hand.removeEventListener("connected", this._onConnected);
+    this.hand.removeEventListener("disconnected", this._onDisconnected);
+  }
+}
+export {
+  OculusHandPointerModel
+};
+//# sourceMappingURL=OculusHandPointerModel.js.map