content/hifi-public/cozza13/scripts/example/multitouchExample.js
Dale Glass 0d14e5a379 Initial data.
Needs a lot of cleanup. Data has been de-duplicated, and where identical copies existed, one of them
has been replaced with a symlink.

Some files have been excluded, such as binaries, installers and debug dumps. Some of that may still
be present.
2022-02-13 18:59:11 +01:00

123 lines
4.3 KiB
JavaScript

//
// multitouchExample.js
// examples
//
// Created by Brad Hefta-Gaub on 2/9/14.
// Copyright 2014 High Fidelity, Inc.
//
// This is an example script that demonstrates use of the Controller class's multi-touch features
//
// When this script is running:
// * Four finger rotate gesture will rotate your avatar.
// * Three finger swipe up/down will adjust the pitch of your avatars head.
//
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
var lastX = 0;
var lastY = 0;
var lastAngle = 0;
var yawFromMultiTouch = 0;
var pitchFromMultiTouch = 0;
var wantDebugging = false;
var ROTATE_YAW_SCALE = 0.15;
var MOUSE_PITCH_SCALE = -12.5;
var FIXED_MOUSE_TIMESTEP = 0.016;
var ROTATE_TOUCH_POINTS = 4;
var PITCH_TOUCH_POINTS = 3;
function printTouchEvent(eventName, event) {
print(eventName);
print(" event.x,y=" + event.x + ", " + event.y);
print(" event.isPressed=" + event.isPressed);
print(" event.isMoved=" + event.isMoved);
print(" event.isStationary=" + event.isStationary);
print(" event.isReleased=" + event.isReleased);
print(" event.isShifted=" + event.isShifted);
print(" event.isControl=" + event.isControl);
print(" event.isMeta=" + event.isMeta);
print(" event.isAlt=" + event.isAlt);
print(" event.touchPoints=" + event.touchPoints);
for (var i = 0; i < event.points.length; i++) {
print(" event.points[" + i + "].x.y:" + event.points[i].x + ", " + event.points[i].y);
}
print(" event.radius=" + event.radius);
print(" event.isPinching=" + event.isPinching);
print(" event.isPinchOpening=" + event.isPinchOpening);
print(" event.angle=" + event.angle);
print(" event.deltaAngle=" + event.deltaAngle);
for (var i = 0; i < event.points.length; i++) {
print(" event.angles[" + i + "]:" + event.angles[i]);
}
print(" event.isRotating=" + event.isRotating);
print(" event.rotating=" + event.rotating);
}
function touchBeginEvent(event) {
printTouchEvent("touchBeginEvent", event);
lastX = event.x;
lastY = event.y;
}
function touchUpdateEvent(event) {
printTouchEvent("touchUpdateEvent", event);
if (event.isRotating && event.touchPoints == ROTATE_TOUCH_POINTS) {
// it's possible for the multitouch rotate gesture to generate angle changes which are faster than comfortable to
// view, so we will scale this change in angle to make it more comfortable
var scaledRotate = event.deltaAngle * ROTATE_YAW_SCALE;
print(">>> event.deltaAngle=" + event.deltaAngle);
print(">>> scaledRotate=" + scaledRotate);
yawFromMultiTouch += scaledRotate;
}
if (event.touchPoints == PITCH_TOUCH_POINTS) {
pitchFromMultiTouch += ((event.y - lastY) * MOUSE_PITCH_SCALE * FIXED_MOUSE_TIMESTEP);
}
lastX = event.x;
lastY = event.y;
lastAngle = event.angle;
}
function touchEndEvent(event) {
printTouchEvent("touchEndEvent", event);
}
// Map touch events to our callbacks
Controller.touchBeginEvent.connect(touchBeginEvent);
Controller.touchUpdateEvent.connect(touchUpdateEvent);
Controller.touchEndEvent.connect(touchEndEvent);
function update(deltaTime) {
// rotate body yaw for yaw received from multitouch rotate
var newOrientation = Quat.multiply(MyAvatar.orientation, Quat.fromVec3Radians( { x: 0, y: yawFromMultiTouch, z: 0 } ));
if (wantDebugging) {
print("changing orientation"
+ " [old]MyAvatar.orientation="+MyAvatar.orientation.x + "," + MyAvatar.orientation.y + ","
+ MyAvatar.orientation.z + "," + MyAvatar.orientation.w
+ " newOrientation="+newOrientation.x + "," + newOrientation.y + "," + newOrientation.z + "," + newOrientation.w);
}
MyAvatar.orientation = newOrientation;
yawFromMultiTouch = 0;
// apply pitch from mouse
var newPitch = MyAvatar.headPitch + pitchFromMultiTouch;
if (wantDebugging) {
print("changing pitch [old]MyAvatar.headPitch="+MyAvatar.headPitch+ " newPitch="+newPitch);
}
MyAvatar.headPitch = newPitch;
pitchFromMultiTouch = 0;
}
Script.update.connect(update);
function scriptEnding() {
// handle any shutdown logic here
}
Script.scriptEnding.connect(scriptEnding);