mirror of
https://github.com/openglobus/openglobus.git
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350 lines
12 KiB
JavaScript
350 lines
12 KiB
JavaScript
/**
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* @module og/control/MouseNavigation
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*/
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'use strict';
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import * as math from '../math.js';
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import { Control } from './Control.js';
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import { input } from '../input/input.js';
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import { Key } from '../Lock.js';
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import { LonLat } from '../LonLat.js';
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import { Mat4 } from '../math/Mat4.js';
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import { Quat } from '../math/Quat.js';
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import { Ray } from '../math/Ray.js';
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import { Sphere } from '../bv/Sphere.js';
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import { Vec3 } from '../math/Vec3.js';
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/**
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* Mouse planet camera dragging control.
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* @class
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* @extends {og.control.Control}
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* @param {Object} [options] - Control options.
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*/
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class MouseNavigation extends Control {
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constructor(options) {
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super(options);
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this._name = "mouseNavigation";
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options = options || {};
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this.grabbedPoint = new Vec3();
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this._eye0 = new Vec3();
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this.pointOnEarth = new Vec3();
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this.earthUp = new Vec3();
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this.inertia = 0.007;
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this.grabbedSpheroid = new Sphere();
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this.planet = null;
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this.qRot = new Quat();
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this.scaleRot = 0;
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this.distDiff = 0.33;
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this.stepsCount = 5;
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this.stepsForward = null;
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this.stepIndex = 0;
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this._keyLock = new Key();
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}
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static getMovePointsFromPixelTerrain(cam, planet, stepsCount, delta, point, forward, dir) {
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var steps = []
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var eye = cam.eye.clone(),
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n = cam._n.clone(),
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u = cam._u.clone(),
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v = cam._v.clone();
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var a = planet.getCartesianFromPixelTerrain(point, true);
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if (!dir) {
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dir = Vec3.sub(a, cam.eye).normalize();
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}
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var d = a ? delta * cam.eye.distance(a) / stepsCount : 1000;
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if (forward) {
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d = -d;
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} else {
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d *= 2;
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}
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var scaled_n = n.scaleTo(d);
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if (a && cam._lonLat.height > 9000 && cam.slope > 0.6) {
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var grabbedSpheroid = new Sphere();
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grabbedSpheroid.radius = a.length();
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var rotArr = [],
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eyeArr = []
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var breaked = false;
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for (var i = 0; i < stepsCount; i++) {
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eye.addA(scaled_n);
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var b = new Ray(eye, dir).hitSphere(grabbedSpheroid);
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eyeArr[i] = eye.clone();
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if (b) {
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rotArr[i] = new Mat4().rotateBetweenVectors(a.normal(), b.normal());
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} else {
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breaked = true;
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break;
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}
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}
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if (!breaked) {
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for (var i = 0; i < stepsCount; i++) {
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var rot = rotArr[i];
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steps[i] = {};
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steps[i].eye = rot.mulVec3(eyeArr[i]);
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steps[i].v = rot.mulVec3(v);
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steps[i].u = rot.mulVec3(u);
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steps[i].n = rot.mulVec3(n);
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}
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} else {
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eye = cam.eye.clone();
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for (var i = 0; i < stepsCount; i++) {
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steps[i] = {};
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steps[i].eye = eye.addA(scaled_n).clone();
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steps[i].v = v;
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steps[i].u = u;
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steps[i].n = n;
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}
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}
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} else {
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for (var i = 0; i < stepsCount; i++) {
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steps[i] = {};
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steps[i].eye = eye.addA(dir.scaleTo(-d)).clone();
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steps[i].v = v;
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steps[i].u = u;
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steps[i].n = n;
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}
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}
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return steps;
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}
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onactivate() {
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this.renderer.events.on("mousewheel", this.onMouseWheel, this);
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this.renderer.events.on("lhold", this.onMouseLeftButtonDown, this);
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this.renderer.events.on("rhold", this.onMouseRightButtonDown, this);
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this.renderer.events.on("ldown", this.onMouseLeftButtonClick, this);
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this.renderer.events.on("lup", this.onMouseLeftButtonUp, this);
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this.renderer.events.on("rdown", this.onMouseRightButtonClick, this);
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this.renderer.events.on("ldblclick", this.onMouseLeftButtonDoubleClick, this);
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this.renderer.events.on("draw", this.onDraw, this);
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this.renderer.events.on("mousemove", this.onMouseMove, this);
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}
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ondeactivate() {
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this.renderer.events.off("mousewheel", this.onMouseWheel);
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this.renderer.events.off("lhold", this.onMouseLeftButtonDown);
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this.renderer.events.off("rhold", this.onMouseRightButtonDown);
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this.renderer.events.off("ldown", this.onMouseLeftButtonClick);
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this.renderer.events.off("lup", this.onMouseLeftButtonUp);
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this.renderer.events.off("rdown", this.onMouseRightButtonClick);
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this.renderer.events.off("ldblclick", this.onMouseLeftButtonDoubleClick);
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this.renderer.events.off("draw", this.onDraw);
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};
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onMouseWheel(event) {
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if (this.stepIndex)
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return;
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this.planet.stopFlying();
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this.stopRotation();
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this._deactivate = true;
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this.planet.layerLock.lock(this._keyLock);
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this.planet.terrainLock.lock(this._keyLock);
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this.planet._normalMapCreator.lock(this._keyLock);
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var ms = this.renderer.events.mouseState;
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this.stepIndex = this.stepsCount;
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this.stepsForward = MouseNavigation.getMovePointsFromPixelTerrain(this.renderer.activeCamera,
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this.planet, this.stepsCount, this.distDiff, ms, event.wheelDelta > 0, ms.direction);
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}
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oninit() {
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this.activate();
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this.renderer.events.on("keyfree", input.KEY_SHIFT, this.onShiftFree, this);
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}
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onMouseLeftButtonDoubleClick() {
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this.planet.stopFlying();
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this.stopRotation();
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var p = this.planet.getCartesianFromPixelTerrain(this.renderer.events.mouseState, true),
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g = this.planet.ellipsoid.cartesianToLonLat(p);
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if (this.renderer.events.isKeyPressed(input.KEY_SHIFT)) {
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this.planet.flyLonLat(new LonLat(g.lon, g.lat, this.renderer.activeCamera.eye.distance(p) * 2.0));
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} else {
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this.planet.flyLonLat(new LonLat(g.lon, g.lat, this.renderer.activeCamera.eye.distance(p) * 0.57));
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}
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}
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onMouseLeftButtonClick() {
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if (this._active) {
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this.renderer.handler.canvas.classList.add("ogGrabbingPoiner");
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this.grabbedPoint = this.planet.getCartesianFromMouseTerrain(true);
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if (this.grabbedPoint) {
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this._eye0.copy(this.renderer.activeCamera.eye);
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this.grabbedSpheroid.radius = this.grabbedPoint.length();
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this.stopRotation();
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}
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}
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}
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stopRotation() {
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this.qRot.clear();
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this.planet.layerLock.free(this._keyLock);
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this.planet.terrainLock.free(this._keyLock);
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this.planet._normalMapCreator.free(this._keyLock);
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}
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onMouseLeftButtonUp(e) {
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this.renderer.handler.canvas.classList.remove("ogGrabbingPoiner");
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}
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onMouseLeftButtonDown(e) {
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if (this._active) {
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if (!this.grabbedPoint)
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return;
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this.planet.stopFlying();
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if (this.renderer.events.mouseState.moving) {
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var cam = this.renderer.activeCamera;
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if (cam.slope > 0.2) {
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var targetPoint = new Ray(cam.eye, e.direction).hitSphere(this.grabbedSpheroid);
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if (targetPoint) {
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this.scaleRot = 1.0;
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this.qRot = Quat.getRotationBetweenVectors(targetPoint.normal(), this.grabbedPoint.normal());
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var rot = this.qRot;
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cam.eye = rot.mulVec3(cam.eye);
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cam._v = rot.mulVec3(cam._v);
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cam._u = rot.mulVec3(cam._u);
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cam._n = rot.mulVec3(cam._n);
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cam.update();
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}
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} else {
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var p0 = this.grabbedPoint,
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p1 = Vec3.add(p0, cam._u),
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p2 = Vec3.add(p0, p0.normal());
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var px = new Vec3();
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if (new Ray(cam.eye, e.direction).hitPlane(p0, p1, p2, px) === Ray.INSIDE) {
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cam.eye = this._eye0.addA(px.subA(p0).negate());
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cam.update();
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}
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}
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} else {
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this.scaleRot = 0;
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}
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}
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}
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onMouseRightButtonClick(e) {
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this.stopRotation();
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this.planet.stopFlying();
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this.pointOnEarth = this.planet.getCartesianFromPixelTerrain({ x: e.x, y: e.y }, true);
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if (this.pointOnEarth) {
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this.earthUp = this.pointOnEarth.normal();
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}
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};
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onMouseRightButtonDown(e) {
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var cam = this.renderer.activeCamera;
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if (this.pointOnEarth && this.renderer.events.mouseState.moving) {
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this.renderer.controlsBag.scaleRot = 1;
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var l = 0.5 / cam.eye.distance(this.pointOnEarth) * cam._lonLat.height * math.RADIANS;
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if (l > 0.007) l = 0.007;
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cam.rotateHorizontal(l * (e.x - e.prev_x), false, this.pointOnEarth, this.earthUp);
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cam.rotateVertical(l * (e.y - e.prev_y), this.pointOnEarth);
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cam.update();
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}
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}
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onShiftFree() {
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this._shiftBusy = false;
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}
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onMouseMove(e) {
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if (this._active && this.renderer.events.isKeyPressed(input.KEY_SHIFT)) {
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if (!this._shiftBusy) {
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this._shiftBusy = true;
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this.onMouseRightButtonClick(e);
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}
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this.onMouseRightButtonDown(e);
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}
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}
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onDraw(e) {
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if (this._active) {
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var r = this.renderer;
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var cam = r.activeCamera;
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var prevEye = cam.eye.clone();
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if (this.stepIndex) {
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r.controlsBag.scaleRot = 1;
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var sf = this.stepsForward[this.stepsCount - this.stepIndex--];
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cam.eye = sf.eye;
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cam._v = sf.v;
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cam._u = sf.u;
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cam._n = sf.n;
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cam.update();
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} else {
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if (this._deactivate) {
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this._deactivate = false;
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this.planet.layerLock.free(this._keyLock);
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this.planet.terrainLock.free(this._keyLock);
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this.planet._normalMapCreator.free(this._keyLock);
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}
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}
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if (r.events.mouseState.leftButtonDown || !this.scaleRot)
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return;
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this.scaleRot -= this.inertia;
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if (this.scaleRot <= 0.0) {
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this.scaleRot = 0.0;
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} else {
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r.controlsBag.scaleRot = this.scaleRot;
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var rot = this.qRot.slerp(Quat.IDENTITY, 1 - this.scaleRot * this.scaleRot * this.scaleRot).normalize();
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if (!(rot.x || rot.y || rot.z)) {
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this.scaleRot = 0;
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}
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cam.eye = rot.mulVec3(cam.eye);
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cam._v = rot.mulVec3(cam._v);
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cam._u = rot.mulVec3(cam._u);
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cam._n = rot.mulVec3(cam._n);
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cam.update();
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}
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if (cam.eye.distance(prevEye) / cam._terrainAltitude > 0.01) {
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this.planet.layerLock.lock(this._keyLock);
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this.planet.terrainLock.lock(this._keyLock);
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this.planet._normalMapCreator.lock(this._keyLock);
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} else {
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this.planet.layerLock.free(this._keyLock);
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this.planet.terrainLock.free(this._keyLock);
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this.planet._normalMapCreator.free(this._keyLock);
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}
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}
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}
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};
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export { MouseNavigation }; |