content/hifi-content/davidback/development/shortbow/utils.js
2022-02-13 22:49:05 +01:00

47 lines
No EOL
1.4 KiB
JavaScript

if (!Function.prototype.bind) {
Function.prototype.bind = function(oThis) {
if (typeof this !== 'function') {
// closest thing possible to the ECMAScript 5
// internal IsCallable function
throw new TypeError('Function.prototype.bind - what is trying to be bound is not callable');
}
var aArgs = Array.prototype.slice.call(arguments, 1),
fToBind = this,
NOP = function() {},
fBound = function() {
return fToBind.apply(this instanceof NOP
? this
: oThis,
aArgs.concat(Array.prototype.slice.call(arguments)));
};
if (this.prototype) {
// Function.prototype doesn't have a prototype property
NOP.prototype = this.prototype;
}
fBound.prototype = new NOP();
return fBound;
};
}
utils = {
parseJSON: function(json) {
try {
return JSON.parse(json);
} catch (e) {
return undefined;
}
},
findSurfaceBelowPosition: function(pos) {
var result = Entities.findRayIntersection({
origin: pos,
direction: { x: 0.0, y: -1.0, z: 0.0 }
}, true);
if (result.intersects) {
return result.intersection;
}
return pos;
}
};