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Add pitching.js
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Ryan Huffman
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365
examples/pitching.js
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365
examples/pitching.js
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//var PITCH_THUNK_SOUND_URL = "file:///C:/Users/Ryan/Downloads/323725__reitanna__thunk.wav";
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var PITCH_THUNK_SOUND_URL = "file:///C:/Users/Ryan/Downloads/thunk.wav";
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var PITCH_THUNK_SOUND_URL = "http://hifi-public.s3.amazonaws.com/sounds/ping_pong_gun/pong_sound.wav";
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var pitchSound = SoundCache.getSound(PITCH_THUNK_SOUND_URL, false);
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function info(message) {
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print("[INFO] " + message);
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}
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function error(message) {
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print("[ERROR] " + message);
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}
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var PITCHING_MACHINE_URL = "atp:87d4879530b698741ecc45f6f31789aac11f7865a2c3bec5fe9b061a182c80d4.fbx";
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var PITCHING_MACHINE_OUTPUT_OFFSET_PCT = {
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x: 0.0,
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y: 0.25,
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z: -1.05,
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};
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var PITCHING_MACHINE_PROPERTIES = {
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name: "Pitching Machine",
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type: "Model",
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position: {
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x: 0,
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y: 0.8,
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z: -22.3,
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},
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velocity: {
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x: 0,
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y: -0.01,
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z: 0
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},
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gravity: {
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x: 0.0,
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y: -9.8,
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z: 0.0
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},
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registrationPoint: {
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x: 0.5,
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y: 0.5,
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z: 0.5,
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},
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rotation: Quat.fromPitchYawRollDegrees(0, 180, 0),
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modelURL: PITCHING_MACHINE_URL,
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dimensions: {
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x: 0.4,
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y: 0.61,
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z: 0.39
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},
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collisionsWillMove: false,
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shapeType: "Box",
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};
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PITCHING_MACHINE_PROPERTIES.dimensions = Vec3.multiply(2.5, PITCHING_MACHINE_PROPERTIES.dimensions);
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var PITCH_RATE = 5000;
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var BASEBALL_MODEL_URL = "atp:7185099f1f650600ca187222573a88200aeb835454bd2f578f12c7fb4fd190fa.fbx";
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var BASEBALL_SPEED = 2.7;
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var BASEBALL_RADIUS = 0.07468;
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var BASEBALL_PROPERTIES = {
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name: "Baseball",
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type: "Model",
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modelURL: BASEBALL_MODEL_URL,
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shapeType: "Sphere",
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position: {
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x: 0,
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y: 0,
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z: 0
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},
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dimensions: {
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x: BASEBALL_RADIUS,
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y: BASEBALL_RADIUS,
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z: BASEBALL_RADIUS
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},
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collisionsWillMove: true,
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angularVelocity: {
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x: 17.0,
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y: 0,
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z: -8.0,
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},
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angularDamping: 0.0,
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damping: 0.0,
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restitution: 0.5,
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friction: 0.0,
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lifetime: 20,
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collisionSoundURL: PITCH_THUNK_SOUND_URL,
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gravity: {
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x: 0,
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y: 0,//-9.8,
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z: 0
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}
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};
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var pitchingMachineID = Entities.addEntity(PITCHING_MACHINE_PROPERTIES);
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var pitchFromPosition = { x: 0, y: 1.0, z: 0 };
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var pitchDirection = { x: 0, y: 0, z: 1 };
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function shallowCopy(obj) {
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var copy = {}
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for (var key in obj) {
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copy[key] = obj[key];
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}
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return copy;
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}
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function randomInt(low, high) {
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return low + (Math.random() * (high - low));
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}
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var ACCELERATION_SPREAD = 10.15;
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function createBaseball(position, velocity, ballScale) {
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var properties = shallowCopy(BASEBALL_PROPERTIES);
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properties.position = position;
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properties.velocity = velocity;
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properties.acceleration = {
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x: randomInt(-ACCELERATION_SPREAD, ACCELERATION_SPREAD),
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y: randomInt(-ACCELERATION_SPREAD, ACCELERATION_SPREAD),
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z: 0.0,
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};
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properties.dimensions = Vec3.multiply(ballScale, properties.dimensions);
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var entityID = Entities.addEntity(properties);
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Script.addEventHandler(entityID, "collisionWithEntity", buildBaseballHitCallback(entityID));
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if (false && Math.random() < 0.5) {
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for (var i = 0; i < 50; i++) {
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Script.setTimeout(function() {
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Entities.editEntity(entityID, {
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gravity: {
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x: randomInt(-ACCELERATION_SPREAD, ACCELERATION_SPREAD),
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y: randomInt(-ACCELERATION_SPREAD, ACCELERATION_SPREAD),
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z: 0.0,
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}
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})
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}, i * 100);
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}
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}
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return entityID;
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}
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var buildBaseballHitCallback = function(entityID) {
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var f = function(entityA, entityB, collision) {
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var properties = Entities.getEntityProperties(entityID, ['position', 'velocity']);
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var line = new InfiniteLine(properties.position, { red: 255, green: 128, blue: 89 });
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var lastPosition = properties.position;
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Vec3.print("Velocity", properties.velocity);
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Vec3.print("VelocityChange", collision.velocityChange);
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Script.setInterval(function() {
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var properties = Entities.getEntityProperties(entityID, ['position']);
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if (Vec3.distance(properties.position, lastPosition)) {
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line.enqueuePoint(properties.position);
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lastPosition = properties.position;
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}
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}, 50);
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Entities.editEntity(entityID, {
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velocity: Vec3.multiply(3, properties.velocity),
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gravity: {
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x: 0,
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y: -2.8,
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z: 0
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}
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});
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print("Baseball hit!");
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Script.removeEventHandler(entityID, "collisionWithEntity", f);
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};
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return f;
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}
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function vec3Mult(a, b) {
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return {
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x: a.x * b.x,
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y: a.y * b.y,
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z: a.z * b.z,
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};
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}
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var injector = null;
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function pitchBall() {
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var machineProperties = Entities.getEntityProperties(pitchingMachineID, ["dimensions", "position", "rotation"]);
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var pitchFromPositionBase = machineProperties.position;
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var pitchFromOffset = vec3Mult(machineProperties.dimensions, PITCHING_MACHINE_OUTPUT_OFFSET_PCT);
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pitchFromOffset = Vec3.multiplyQbyV(machineProperties.rotation, pitchFromOffset);
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var pitchFromPosition = Vec3.sum(pitchFromPositionBase, pitchFromOffset);
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var pitchDirection = Quat.getFront(machineProperties.rotation);
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var ballScale = machineProperties.dimensions.x / PITCHING_MACHINE_PROPERTIES.dimensions.x;
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print("Creating baseball");
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var ballEntityID = createBaseball(pitchFromPosition, Vec3.multiply(BASEBALL_SPEED, pitchDirection), ballScale);
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if (!injector) {
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injector = Audio.playSound(pitchSound, {
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position: pitchFromPosition,
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volume: 1.0
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});
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} else {
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injector.restart();
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}
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}
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Script.scriptEnding.connect(function() {
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Entities.deleteEntity(pitchingMachineID);
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})
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Script.setInterval(pitchBall, PITCH_RATE);
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/******************************************************************************
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* PolyLine
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*****************************************************************************/
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var LINE_DIMENSIONS = { x: 2000, y: 2000, z: 2000 };
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var MAX_LINE_LENGTH = 40; // This must be 2 or greater;
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var PolyLine = function(position, color, defaultStrokeWidth) {
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//info("Creating polyline");
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//Vec3.print("New line at", position);
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this.position = position;
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this.color = color;
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this.defaultStrokeWidth = 0.10;
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this.points = [
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{ x: 0, y: 0, z: 0 },
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];
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this.strokeWidths = [
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this.defaultStrokeWidth,
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]
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this.normals = [
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{ x: 1, y: 0, z: 0 },
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]
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this.entityID = Entities.addEntity({
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type: "PolyLine",
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position: position,
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linePoints: this.points,
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normals: this.normals,
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strokeWidths: this.strokeWidths,
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dimensions: LINE_DIMENSIONS,
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color: color,
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lifetime: 20,
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});
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};
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PolyLine.prototype.enqueuePoint = function(position) {
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if (this.isFull()) {
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error("Hit max PolyLine size");
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return;
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}
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//Vec3.print("pos", position);
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//info("Number of points: " + this.points.length);
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position = Vec3.subtract(position, this.position);
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this.points.push(position);
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this.normals.push({ x: 1, y: 0, z: 0 });
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this.strokeWidths.push(this.defaultStrokeWidth);
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Entities.editEntity(this.entityID, {
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linePoints: this.points,
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normals: this.normals,
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strokeWidths: this.strokeWidths,
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});
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};
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PolyLine.prototype.dequeuePoint = function() {
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if (this.points.length == 0) {
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error("Hit min PolyLine size");
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return;
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}
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this.points = this.points.slice(1);
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this.normals = this.normals.slice(1);
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this.strokeWidths = this.strokeWidths.slice(1);
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Entities.editEntity(this.entityID, {
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linePoints: this.points,
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normals: this.normals,
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strokeWidths: this.strokeWidths,
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});
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};
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PolyLine.prototype.getFirstPoint = function() {
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return Vec3.sum(this.position, this.points[0]);
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};
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PolyLine.prototype.getLastPoint = function() {
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return Vec3.sum(this.position, this.points[this.points.length - 1]);
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};
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PolyLine.prototype.getSize = function() {
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return this.points.length;
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}
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PolyLine.prototype.isFull = function() {
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return this.points.length >= MAX_LINE_LENGTH;
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};
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PolyLine.prototype.destroy = function() {
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Entities.deleteEntity(this.entityID);
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this.points = [];
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};
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/******************************************************************************
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* InfiniteLine
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*****************************************************************************/
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InfiniteLine = function(position, color) {
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this.position = position;
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this.color = color;
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this.lines = [new PolyLine(position, color)];
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this.size = 0;
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};
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InfiniteLine.prototype.enqueuePoint = function(position) {
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var currentLine;
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if (this.lines.length == 0) {
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currentLine = new PolyLine(position, this.color);
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this.lines.push(currentLine);
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} else {
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currentLine = this.lines[this.lines.length - 1];
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}
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if (currentLine.isFull()) {
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//info("Current line is full, creating new line");
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//Vec3.print("Last line is", currentLine.getLastPoint());
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//Vec3.print("New line is", position);
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var newLine = new PolyLine(currentLine.getLastPoint(), this.color);
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this.lines.push(newLine);
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currentLine = newLine;
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}
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currentLine.enqueuePoint(position);
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++this.size;
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};
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InfiniteLine.prototype.dequeuePoint = function() {
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if (this.lines.length == 0) {
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error("Trying to dequeue from InfiniteLine when no points are left");
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return;
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}
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var lastLine = this.lines[0];
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lastLine.dequeuePoint();
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if (lastLine.getSize() <= 1) {
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this.lines = this.lines.slice(1);
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}
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--this.size;
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};
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InfiniteLine.prototype.getFirstPoint = function() {
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return this.lines.length > 0 ? this.lines[0].getFirstPoint() : null;
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};
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InfiniteLine.prototype.getLastPoint = function() {
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return this.lines.length > 0 ? this.lines[lines.length - 1].getLastPoint() : null;
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};
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InfiniteLine.prototype.destroy = function() {
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for (var i = 0; i < this.lines.length; ++i) {
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this.lines[i].destroy();
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}
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this.size = 0;
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};
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