overte-HifiExperiments/examples/proceduralBot.js
2014-07-30 12:08:07 -07:00

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JavaScript

//
// proceduralBot.js
// hifi
//
// Created by Ben Arnold on 7/29/2013
//
// Copyright (c) 2014 HighFidelity, Inc. All rights reserved.
//
// This is an example script that demonstrates an NPC avatar.
//
//
//For procedural walk animation
Script.include("http://s3-us-west-1.amazonaws.com/highfidelity-public/scripts/proceduralAnimationAPI.js");
var procAnimAPI = new ProcAnimAPI();
function getRandomFloat(min, max) {
return Math.random() * (max - min) + min;
}
function getRandomInt (min, max) {
return Math.floor(Math.random() * (max - min + 1)) + min;
}
function printVector(string, vector) {
print(string + " " + vector.x + ", " + vector.y + ", " + vector.z);
}
var CHANCE_OF_MOVING = 0.01;
var CHANCE_OF_SOUND = 0;
var CHANCE_OF_HEAD_TURNING = 0.05;
var CHANCE_OF_BIG_MOVE = 0.1;
var isMoving = false;
var isTurningHead = false;
var isPlayingAudio = false;
var X_MIN = 0.50;
var X_MAX = 15.60;
var Z_MIN = 0.50;
var Z_MAX = 15.10;
var Y_PELVIS = 1.0;
var MAX_PELVIS_DELTA = 2.5;
var AVATAR_PELVIS_HEIGHT = 0.75;
var MOVE_RANGE_SMALL = 10.0;
var TURN_RANGE = 70.0;
var STOP_TOLERANCE = 0.05;
var MOVE_RATE = 0.05;
var TURN_RATE = 0.2;
var PITCH_RATE = 0.10;
var PITCH_RANGE = 20.0;
//var firstPosition = { x: getRandomFloat(X_MIN, X_MAX), y: Y_PELVIS, z: getRandomFloat(Z_MIN, Z_MAX) };
var firstPosition = { x: 0.5, y: Y_PELVIS, z: 0.5 };
var targetPosition = { x: 0, y: 0, z: 0 };
var targetOrientation = { x: 0, y: 0, z: 0, w: 0 };
var currentOrientation = { x: 0, y: 0, z: 0, w: 0 };
var targetHeadPitch = 0.0;
var basePelvisHeight = 0.0;
var pelvisOscillatorPosition = 0.0;
var pelvisOscillatorVelocity = 0.0;
function clamp(val, min, max){
return Math.max(min, Math.min(max, val))
}
// pick an integer between 1 and 100 that is not 28 for the face model for this bot
botNumber = 28;
while (botNumber == 28) {
botNumber = getRandomInt(1, 100);
}
if (botNumber <= 20) {
newFaceFilePrefix = "ron";
newBodyFilePrefix = "defaultAvatar_body"
} else {
if (botNumber <= 40) {
newFaceFilePrefix = "superhero";
} else if (botNumber <= 60) {
newFaceFilePrefix = "amber";
} else if (botNumber <= 80) {
newFaceFilePrefix = "ron";
} else {
newFaceFilePrefix = "angie";
}
newBodyFilePrefix = "bot" + botNumber;
}
newFaceFilePrefix = "ron";
newBodyFilePrefix = "bot" + 63;
// set the face model fst using the bot number
// there is no need to change the body model - we're using the default
Avatar.faceModelURL = "https://s3-us-west-1.amazonaws.com/highfidelity-public/meshes/" + newFaceFilePrefix + ".fst";
Avatar.skeletonModelURL = "https://s3-us-west-1.amazonaws.com/highfidelity-public/meshes/" + newBodyFilePrefix + "_a.fst";
Avatar.billboardURL = "https://s3-us-west-1.amazonaws.com/highfidelity-public/meshes/billboards/bot" + botNumber + ".png";
Agent.isAvatar = true;
Agent.isListeningToAudioStream = true;
// change the avatar's position to the random one
Avatar.position = firstPosition;
basePelvisHeight = firstPosition.y;
printVector("New dancer, position = ", Avatar.position);
function loadSounds() {
var sound_filenames = ["AB1.raw", "Anchorman2.raw", "B1.raw", "B1.raw", "Bale1.raw", "Bandcamp.raw",
"Big1.raw", "Big2.raw", "Brian1.raw", "Buster1.raw", "CES1.raw", "CES2.raw", "CES3.raw", "CES4.raw",
"Carrie1.raw", "Carrie3.raw", "Charlotte1.raw", "EN1.raw", "EN2.raw", "EN3.raw", "Eugene1.raw", "Francesco1.raw",
"Italian1.raw", "Japanese1.raw", "Leigh1.raw", "Lucille1.raw", "Lucille2.raw", "MeanGirls.raw", "Murray2.raw",
"Nigel1.raw", "PennyLane.raw", "Pitt1.raw", "Ricardo.raw", "SN.raw", "Sake1.raw", "Samantha1.raw", "Samantha2.raw",
"Spicoli1.raw", "Supernatural.raw", "Swearengen1.raw", "TheDude.raw", "Tony.raw", "Triumph1.raw", "Uma1.raw",
"Walken1.raw", "Walken2.raw", "Z1.raw", "Z2.raw"
];
var SOUND_BASE_URL = "https://s3-us-west-1.amazonaws.com/highfidelity-public/sounds/Cocktail+Party+Snippets/Raws/";
for (var i = 0; i < sound_filenames.length; i++) {
sounds.push(new Sound(SOUND_BASE_URL + sound_filenames[i]));
}
}
var sounds = [];
loadSounds();
function playRandomSound() {
if (!Agent.isPlayingAvatarSound) {
var whichSound = Math.floor((Math.random() * sounds.length) % sounds.length);
Agent.playAvatarSound(sounds[whichSound]);
}
}
//Procedural walk animation using two keyframes
//We use a separate array for front and back joints
//Pitch, yaw, and roll for the joints
var rightAngles = [];
var leftAngles = [];
//for non mirrored joints such as the spine
var middleAngles = [];
//Actual joint mappings
var SHOULDER_JOINT_NUMBER = 15;
var ELBOW_JOINT_NUMBER = 16;
var JOINT_R_HIP = 1;
var JOINT_R_KNEE = 2;
var JOINT_L_HIP = 6;
var JOINT_L_KNEE = 7;
var JOINT_R_ARM = 15;
var JOINT_R_FOREARM = 16;
var JOINT_L_ARM = 39;
var JOINT_L_FOREARM = 40;
var JOINT_SPINE = 11;
// ******************************* Animation Is Defined Below *************************************
var NUM_FRAMES = 2;
for (var i = 0; i < NUM_FRAMES; i++) {
rightAngles[i] = [];
leftAngles[i] = [];
middleAngles[i] = [];
}
//Joint order for actual joint mappings, should be interleaved R,L,R,L,...S,S,S for R = right, L = left, S = single
var JOINT_ORDER = [JOINT_R_HIP, JOINT_L_HIP, JOINT_R_KNEE, JOINT_L_KNEE, JOINT_R_ARM, JOINT_L_ARM, JOINT_R_FOREARM, JOINT_L_FOREARM, JOINT_SPINE];
//Joint indices for joints that are duplicated, such as arms, It must match JOINT_ORDER
var HIP = 0;
var KNEE = 1;
var ARM = 2;
var FOREARM = 3;
//Joint indices for single joints
var SPINE = 0;
//We have to store the angles so we can invert yaw and roll when making the animation
//symmetrical
//Front refers to leg, not arm.
//Legs Extending
rightAngles[0][HIP] = [30.0, 0.0, 8.0];
rightAngles[0][KNEE] = [-15.0, 0.0, 0.0];
rightAngles[0][ARM] = [85.0, -25.0, 0.0];
rightAngles[0][FOREARM] = [0.0, 0.0, -15.0];
leftAngles[0][HIP] = [-15, 0.0, 8.0];
leftAngles[0][KNEE] = [-28, 0.0, 0.0];
leftAngles[0][ARM] = [85.0, 20.0, 0.0];
leftAngles[0][FOREARM] = [10.0, 0.0, -25.0];
middleAngles[0][SPINE] = [0.0, -15.0, 5.0];
//Legs Passing
rightAngles[1][HIP] = [6.0, 0.0, 8.0];
rightAngles[1][KNEE] = [-12.0, 0.0, 0.0];
rightAngles[1][ARM] = [85.0, 0.0, 0.0];
rightAngles[1][FOREARM] = [0.0, 0.0, -15.0];
leftAngles[1][HIP] = [10.0, 0.0, 8.0];
leftAngles[1][KNEE] = [-55.0, 0.0, 0.0];
leftAngles[1][ARM] = [85.0, 0.0, 0.0];
leftAngles[1][FOREARM] = [0.0, 0.0, -15.0];
middleAngles[1][SPINE] = [0.0, 0.0, 0.0];
//Actual keyframes for the animation
var walkKeyFrames = procAnimAPI.generateKeyframes(rightAngles, leftAngles, middleAngles, NUM_FRAMES);
// ******************************* Animation Is Defined Above *************************************
// ********************************** Standing Key Frame ******************************************
//We don't have to do any mirroring or anything, since this is just a single pose.
var rightQuats = [];
var leftQuats = [];
var middleQuats = [];
rightQuats[HIP] = Quat.fromPitchYawRollDegrees(0.0, 0.0, 7.0);
rightQuats[KNEE] = Quat.fromPitchYawRollDegrees(0.0, 0.0, 0.0);
rightQuats[ARM] = Quat.fromPitchYawRollDegrees(85.0, 0.0, 0.0);
rightQuats[FOREARM] = Quat.fromPitchYawRollDegrees(0.0, 0.0, -10.0);
leftQuats[HIP] = Quat.fromPitchYawRollDegrees(0, 0.0, -7.0);
leftQuats[KNEE] = Quat.fromPitchYawRollDegrees(0, 0.0, 0.0);
leftQuats[ARM] = Quat.fromPitchYawRollDegrees(85.0, 0.0, 0.0);
leftQuats[FOREARM] = Quat.fromPitchYawRollDegrees(0.0, 0.0, 10.0);
middleQuats[SPINE] = Quat.fromPitchYawRollDegrees(0.0, 0.0, 0.0);
var standingKeyFrame = new procAnimAPI.KeyFrame(rightQuats, leftQuats, middleQuats);
// ************************************************************************************************
var currentFrame = 0;
var walkTime = 0.0;
var walkWheelRadius = 0.5;
var walkWheelRate = 2.0 * 3.141592 * walkWheelRadius / 8.0;
var avatarAcceleration = 0.75;
var avatarVelocity = 0.0;
var avatarMaxVelocity = 1.4;
function handleAnimation(deltaTime) {
if (avatarVelocity == 0.0) {
walkTime = 0.0;
currentFrame = 0;
} else {
walkTime += avatarVelocity * deltaTime;
if (walkTime > walkWheelRate) {
walkTime = 0.0;
currentFrame++;
if (currentFrame > 3) {
currentFrame = 0;
}
}
}
var frame = walkKeyFrames[currentFrame];
var walkInterp = walkTime / walkWheelRate;
var animInterp = avatarVelocity / (avatarMaxVelocity / 2.0);
if (animInterp > 1.0) animInterp = 1.0;
for (var i = 0; i < JOINT_ORDER.length; i++) {
var walkJoint = procAnimAPI.deCasteljau(frame.rotations[i], frame.nextFrame.rotations[i], frame.controlPoints[i][0], frame.controlPoints[i][1], walkInterp);
var standJoint = standingKeyFrame.rotations[i];
var finalJoint = Quat.mix(standJoint, walkJoint, animInterp);
Avatar.setJointData(JOINT_ORDER[i], finalJoint);
}
}
function jumpWithLoudness(deltaTime) {
// potentially change pelvis height depending on trailing average loudness
pelvisOscillatorVelocity += deltaTime * Agent.lastReceivedAudioLoudness * 700.0 ;
pelvisOscillatorVelocity -= pelvisOscillatorPosition * 0.75;
pelvisOscillatorVelocity *= 0.97;
pelvisOscillatorPosition += deltaTime * pelvisOscillatorVelocity;
Avatar.headPitch = pelvisOscillatorPosition * 60.0;
var pelvisPosition = Avatar.position;
pelvisPosition.y = (Y_PELVIS - 0.35) + pelvisOscillatorPosition;
if (pelvisPosition.y < Y_PELVIS) {
pelvisPosition.y = Y_PELVIS;
} else if (pelvisPosition.y > Y_PELVIS + 1.0) {
pelvisPosition.y = Y_PELVIS + 1.0;
}
Avatar.position = pelvisPosition;
}
var forcedMove = false;
var wasMovingLastFrame = false;
function handleHeadTurn() {
if (!isTurningHead && (Math.random() < CHANCE_OF_HEAD_TURNING)) {
targetHeadPitch = getRandomFloat(-PITCH_RANGE, PITCH_RANGE);
isTurningHead = true;
} else {
Avatar.headPitch = Avatar.headPitch + (targetHeadPitch - Avatar.headPitch) * PITCH_RATE;
if (Math.abs(Avatar.headPitch - targetHeadPitch) < STOP_TOLERANCE) {
isTurningHead = false;
}
}
}
function stopWalking() {
avatarVelocity = 0.0;
isMoving = false;
}
var MAX_ATTEMPTS = 40;
function handleWalking(deltaTime) {
if (forcedMove || (!isMoving && Math.random() < CHANCE_OF_MOVING)) {
// Set new target location
//Keep trying new orientations if the desired target location is out of bounds
var attempts = 0;
do {
targetOrientation = Quat.multiply(Avatar.orientation, Quat.angleAxis(getRandomFloat(-TURN_RANGE, TURN_RANGE), { x:0, y:1, z:0 }));
var front = Quat.getFront(targetOrientation);
targetPosition = Vec3.sum(Avatar.position, Vec3.multiply(front, getRandomFloat(0.0, MOVE_RANGE_SMALL)));
}
while ((targetPosition.x < X_MIN || targetPosition.x > X_MAX || targetPosition.z < Z_MIN || targetPosition.z > Z_MAX)
&& attempts < MAX_ATTEMPTS);
targetPosition.x = clamp(targetPosition.x, X_MIN, X_MAX);
targetPosition.z = clamp(targetPosition.z, Z_MIN, Z_MAX);
targetPosition.y = Y_PELVIS;
wasMovingLastFrame = true;
isMoving = true;
forcedMove = false;
} else if (isMoving) {
var targetVector = Vec3.subtract(targetPosition, Avatar.position);
var distance = Vec3.length(targetVector);
if (distance <= avatarVelocity * deltaTime) {
Avatar.position = targetPosition;
stopWalking();
} else {
var direction = Vec3.normalize(targetVector);
//Figure out if we should be slowing down
var t = avatarVelocity / avatarAcceleration;
var d = (avatarVelocity / 2.0) * t;
if (distance < d) {
avatarVelocity -= avatarAcceleration * deltaTime;
if (avatarVelocity <= 0) {
stopWalking();
}
} else {
avatarVelocity += avatarAcceleration * deltaTime;
if (avatarVelocity > avatarMaxVelocity) avatarVelocity = avatarMaxVelocity;
}
Avatar.position = Vec3.sum(Avatar.position, Vec3.multiply(direction, avatarVelocity * deltaTime));
Avatar.orientation = Quat.mix(Avatar.orientation, targetOrientation, TURN_RATE);
wasMovingLastFrame = true;
}
}
}
function handleTalking() {
if (Math.random() < CHANCE_OF_SOUND) {
playRandomSound();
}
}
function changePelvisHeight(newHeight) {
var newPosition = Avatar.position;
newPosition.y = newHeight;
Avatar.position = newPosition;
}
function updateBehavior(deltaTime) {
if (AvatarList.containsAvatarWithDisplayName("mrdj")) {
if (wasMovingLastFrame) {
isMoving = false;
}
// we have a DJ, shouldn't we be dancing?
jumpWithLoudness(deltaTime);
} else {
// no DJ, let's just chill on the dancefloor - randomly walking and talking
handleHeadTurn();
handleAnimation(deltaTime);
handleWalking(deltaTime);
handleTalking();
}
}
Script.update.connect(updateBehavior);