//// golfClub.js//// Created by Philip Rosedale on April 11, 2016.// Copyright 2016 High Fidelity, Inc.////// Distributed under the Apache License, Version 2.0.// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html//// A simple golf club. If you have equipped it, and pull trigger, it will either make // you a new golf ball, or take you to your ball if one is not made. (function() { var ball = null; var collisionSoundURL = "https://content.overte.org/Developer/Tutorials/golfClub/collision1.wav"; var triggerState = false; var BALL_GRAVITY = -9.8; var BALL_START_VELOCITY = 0.1; var BALL_MAX_RANGE = 10; var BALL_DROP_DISTANCE = 0.6; var BALL_DIAMETER = 0.07; var BALL_LIFETIME = 3600; var MAX_BRAKING_SPEED = 0.2; var BALL_BRAKING_RATE = 0.5; var TRIGGER_CONTROLS = [ Controller.Standard.LT, Controller.Standard.RT, ]; function triggerPulled(hand) { // Return true if the trigger has just been pulled var triggerValue = Controller.getValue(TRIGGER_CONTROLS[hand]); var oldTriggerState = triggerState; var TRIGGER_PULL_THRESHOLD = 0.5; var TRIGGER_RELEASE_THRESHOLD = 0.4; if (triggerValue > TRIGGER_PULL_THRESHOLD) { triggerState = true; } else if (triggerValue < TRIGGER_RELEASE_THRESHOLD) { triggerState = false; } return (triggerState && (oldTriggerState != triggerState)); } function ballPosition(ball) { // return the position of this entity var properties = Entities.getEntityProperties(ball, ['position']); if (!properties) { return null; } else { return properties.position; } } function gotoPointOnGround(position, away) { // Position yourself facing in the direction you were originally facing, but with a // point on the ground *away* meters from *position* and in front of you. var offset = Quat.getForward(MyAvatar.orientation); offset.y = 0.0; offset = Vec3.multiply(-away, Vec3.normalize(offset)); var newAvatarPosition = Vec3.sum(position, offset); // Assuming position is on ground, put me distance from eyes to hips higher, plus a 50% adjust for longer legs. // TODO: Need avatar callback for exact foot-to-hips height. var halfHeight = avatarHalfHeight(); print("Height = " + halfHeight); newAvatarPosition.y += (halfHeight * 1.5); MyAvatar.position = newAvatarPosition; } function inFrontOfMe() { return Vec3.sum(MyAvatar.position, Vec3.multiply(BALL_DROP_DISTANCE, Quat.getForward(MyAvatar.orientation))); } function avatarHalfHeight() { return MyAvatar.getDefaultEyePosition().y - MyAvatar.position.y; } function brakeBall(ball) { // Check the ball's velocity and slow it down if beyond a threshold var properties = Entities.getEntityProperties(ball, ['velocity']); if (properties) { var velocity = Vec3.length(properties.velocity); if ((velocity > 0) && (velocity < MAX_BRAKING_SPEED)) { Entities.editEntity(ball, { velocity: Vec3.multiply(BALL_BRAKING_RATE, properties.velocity) }); } } } function makeBall(position) { // Create a new sphere entity ball = Entities.addEntity({ type: "Sphere", position: position, color: { red: 255, green: 255, blue: 255 }, dimensions: { x: BALL_DIAMETER, y: BALL_DIAMETER, z: BALL_DIAMETER }, gravity: { x: 0, y: BALL_GRAVITY, z: 0 }, velocity: { x: 0, y: BALL_START_VELOCITY, z: 0 }, friction: 0.5, restitution: 0.5, shapeType: "sphere", dynamic: true, lifetime: BALL_LIFETIME, collisionSoundURL: collisionSoundURL }); } function checkClub(params) { var hand = params[0] == "left" ? 0 : 1; var makeNewBall = false; if (triggerPulled(hand)) { // If trigger just pulled, either drop new ball or go to existing one var position = ballPosition(ball); if (position && (Vec3.distance(MyAvatar.position, position) < BALL_MAX_RANGE)) { gotoPointOnGround(position, BALL_DROP_DISTANCE); } else { Entities.deleteEntity(ball); makeBall(inFrontOfMe()); } } brakeBall(ball); } this.continueEquip = function(id, params) { // While holding the club, continuously check for trigger pull and brake ball if moving. checkClub(params); } });
//
// golfClub.js
//
// Created by Philip Rosedale on April 11, 2016.
// Copyright 2016 High Fidelity, Inc.
//
//
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
// A simple golf club. If you have equipped it, and pull trigger, it will either make
// you a new golf ball, or take you to your ball if one is not made.
(function() {
var ball = null;
var collisionSoundURL = "https://content.overte.org/Developer/Tutorials/golfClub/collision1.wav";
var triggerState = false;
var BALL_GRAVITY = -9.8;
var BALL_START_VELOCITY = 0.1;
var BALL_MAX_RANGE = 10;
var BALL_DROP_DISTANCE = 0.6;
var BALL_DIAMETER = 0.07;
var BALL_LIFETIME = 3600;
var MAX_BRAKING_SPEED = 0.2;
var BALL_BRAKING_RATE = 0.5;
var TRIGGER_CONTROLS = [
Controller.Standard.LT,
Controller.Standard.RT,
];
function triggerPulled(hand) {
// Return true if the trigger has just been pulled
var triggerValue = Controller.getValue(TRIGGER_CONTROLS[hand]);
var oldTriggerState = triggerState;
var TRIGGER_PULL_THRESHOLD = 0.5;
var TRIGGER_RELEASE_THRESHOLD = 0.4;
if (triggerValue > TRIGGER_PULL_THRESHOLD) {
triggerState = true;
} else if (triggerValue < TRIGGER_RELEASE_THRESHOLD) {
triggerState = false;
}
return (triggerState && (oldTriggerState != triggerState));
}
function ballPosition(ball) {
// return the position of this entity
var properties = Entities.getEntityProperties(ball, ['position']);
if (!properties) {
return null;
} else {
return properties.position;
}
}
function gotoPointOnGround(position, away) {
// Position yourself facing in the direction you were originally facing, but with a
// point on the ground *away* meters from *position* and in front of you.
var offset = Quat.getForward(MyAvatar.orientation);
offset.y = 0.0;
offset = Vec3.multiply(-away, Vec3.normalize(offset));
var newAvatarPosition = Vec3.sum(position, offset);
// Assuming position is on ground, put me distance from eyes to hips higher, plus a 50% adjust for longer legs.
// TODO: Need avatar callback for exact foot-to-hips height.
var halfHeight = avatarHalfHeight();
print("Height = " + halfHeight);
newAvatarPosition.y += (halfHeight * 1.5);
MyAvatar.position = newAvatarPosition;
}
function inFrontOfMe() {
return Vec3.sum(MyAvatar.position, Vec3.multiply(BALL_DROP_DISTANCE, Quat.getForward(MyAvatar.orientation)));
}
function avatarHalfHeight() {
return MyAvatar.getDefaultEyePosition().y - MyAvatar.position.y;
}
function brakeBall(ball) {
// Check the ball's velocity and slow it down if beyond a threshold
var properties = Entities.getEntityProperties(ball, ['velocity']);
if (properties) {
var velocity = Vec3.length(properties.velocity);
if ((velocity > 0) && (velocity < MAX_BRAKING_SPEED)) {
Entities.editEntity(ball, {
velocity: Vec3.multiply(BALL_BRAKING_RATE, properties.velocity)
});
}
}
}
function makeBall(position) {
// Create a new sphere entity
ball = Entities.addEntity({
type: "Sphere",
position: position,
color: {
red: 255,
green: 255,
blue: 255
},
dimensions: {
x: BALL_DIAMETER,
y: BALL_DIAMETER,
z: BALL_DIAMETER
},
gravity: {
x: 0,
y: BALL_GRAVITY,
z: 0
},
velocity: {
x: 0,
y: BALL_START_VELOCITY,
z: 0
},
friction: 0.5,
restitution: 0.5,
shapeType: "sphere",
dynamic: true,
lifetime: BALL_LIFETIME,
collisionSoundURL: collisionSoundURL
});
}
function checkClub(params) {
var hand = params[0] == "left" ? 0 : 1;
var makeNewBall = false;
if (triggerPulled(hand)) {
// If trigger just pulled, either drop new ball or go to existing one
var position = ballPosition(ball);
if (position && (Vec3.distance(MyAvatar.position, position) < BALL_MAX_RANGE)) {
gotoPointOnGround(position, BALL_DROP_DISTANCE);
} else {
Entities.deleteEntity(ball);
makeBall(inFrontOfMe());
}
}
brakeBall(ball);
}
this.continueEquip = function(id, params) {
// While holding the club, continuously check for trigger pull and brake ball if moving.
checkClub(params);
}
});