//// detectTouchExample.js// examples/entityScripts//// Created by Brad Hefta-Gaub on 9/3/15.// Copyright 2015 High Fidelity, Inc.//// This is an example of an entity script which when assigned to an entity, will detect when the entity is being touched by the avatars hands//// Distributed under the Apache License, Version 2.0.// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html//(function() { Script.include("../libraries/utils.js"); var _this; // this is the "constructor" for the entity as a JS object we don't do much here, but we do want to remember // our this object, so we can access it in cases where we're called without a this (like in the case of various global signals) DetectTouched = function() { _this = this; }; DetectTouched.prototype = { // update() will be called regulary, because we've hooked the update signal in our preload() function. // we will check the avatars hand positions and if either hand is in our bounding box, we will notice that update: function() { // because the update() signal doesn't have a valid this, we need to use our memorized _this to access our entityID var entityID = _this.entityID; var leftHandPosition = MyAvatar.getLeftPalmPosition(); var rightHandPosition = MyAvatar.getRightPalmPosition(); var props = Entities.getEntityProperties(entityID); var entityMinPoint = props.boundingBox.brn; var entityMaxPoint = props.boundingBox.tfl; if (pointInExtents(leftHandPosition, entityMinPoint, entityMaxPoint) || pointInExtents(rightHandPosition, entityMinPoint, entityMaxPoint)) { // remember we're being grabbed so we can detect being released _this.beingTouched = true; // print out that we're being grabbed print("I'm being touched..."); } else if (_this.beingTouched) { // if we are not being grabbed, and we previously were, then we were just released, remember that // and print out a message _this.beingTouched = false; print("I'm am no longer being touched..."); } }, // preload() will be called when the entity has become visible (or known) to the interface // it gives us a chance to set our local JavaScript object up. In this case it means: // * remembering our entityID, so we can access it in cases where we're called without an entityID // * connecting to the update signal so we can check our grabbed state preload: function(entityID) { print("preload!"); this.entityID = entityID; Script.update.connect(this.update); }, // unload() will be called when our entity is no longer available. It may be because we were deleted, // or because we've left the domain or quit the application. In all cases we want to unhook our connection // to the update signal unload: function(entityID) { Script.update.disconnect(this.update); }, }; // entity scripts always need to return a newly constructed object of our type return new DetectTouched();})
//
// detectTouchExample.js
// examples/entityScripts
//
// Created by Brad Hefta-Gaub on 9/3/15.
// Copyright 2015 High Fidelity, Inc.
//
// This is an example of an entity script which when assigned to an entity, will detect when the entity is being touched by the avatars hands
//
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
(function() {
Script.include("../libraries/utils.js");
var _this;
// this is the "constructor" for the entity as a JS object we don't do much here, but we do want to remember
// our this object, so we can access it in cases where we're called without a this (like in the case of various global signals)
DetectTouched = function() {
_this = this;
};
DetectTouched.prototype = {
// update() will be called regulary, because we've hooked the update signal in our preload() function.
// we will check the avatars hand positions and if either hand is in our bounding box, we will notice that
update: function() {
// because the update() signal doesn't have a valid this, we need to use our memorized _this to access our entityID
var entityID = _this.entityID;
var leftHandPosition = MyAvatar.getLeftPalmPosition();
var rightHandPosition = MyAvatar.getRightPalmPosition();
var props = Entities.getEntityProperties(entityID);
var entityMinPoint = props.boundingBox.brn;
var entityMaxPoint = props.boundingBox.tfl;
if (pointInExtents(leftHandPosition, entityMinPoint, entityMaxPoint) || pointInExtents(rightHandPosition, entityMinPoint, entityMaxPoint)) {
// remember we're being grabbed so we can detect being released
_this.beingTouched = true;
// print out that we're being grabbed
print("I'm being touched...");
} else if (_this.beingTouched) {
// if we are not being grabbed, and we previously were, then we were just released, remember that
// and print out a message
_this.beingTouched = false;
print("I'm am no longer being touched...");
}
},
// preload() will be called when the entity has become visible (or known) to the interface
// it gives us a chance to set our local JavaScript object up. In this case it means:
// * remembering our entityID, so we can access it in cases where we're called without an entityID
// * connecting to the update signal so we can check our grabbed state
preload: function(entityID) {
print("preload!");
this.entityID = entityID;
Script.update.connect(this.update);
},
// unload() will be called when our entity is no longer available. It may be because we were deleted,
// or because we've left the domain or quit the application. In all cases we want to unhook our connection
// to the update signal
unload: function(entityID) {
Script.update.disconnect(this.update);
},
};
// entity scripts always need to return a newly constructed object of our type
return new DetectTouched();
})