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first cut of billiards.js, good enough to play with a bit

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Philip Rosedale 2015-01-20 09:46:18 -08:00
parent dca07ed694
commit 0f368f52fb
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// Pool Table
var tableParts = [];
var balls = [];
var LENGTH = 2.84;
var WIDTH = 1.42;
var HEIGHT = 0.80;
var SCALE = 2.0;
var BALL_SIZE = 0.05715;
var BUMPER_WIDTH = 0.15;
var BUMPER_HEIGHT = BALL_SIZE * 2.0;
var HOLE_SIZE = BALL_SIZE;
var DROP_HEIGHT = BALL_SIZE * 3.0;
var GRAVITY = -9.8;
var BALL_GAP = 0.001;
var startStroke = 0;
HIFI_PUBLIC_BUCKET = "http://s3.amazonaws.com/hifi-public/";
var screenSize = Controller.getViewportDimensions();
var reticle = Overlays.addOverlay("image", {
x: screenSize.x / 2 - 16,
y: screenSize.y / 2 - 16,
width: 32,
height: 32,
imageURL: HIFI_PUBLIC_BUCKET + "images/reticle.png",
color: { red: 255, green: 255, blue: 255},
alpha: 1
});
function makeTable(pos) {
// Top
tableParts.push(Entities.addEntity(
{ type: "Box",
position: pos,
dimensions: { x: LENGTH * SCALE, y: HEIGHT, z: WIDTH * SCALE },
color: { red: 0, green: 255, blue: 0 } }));
// Long Bumpers
tableParts.push(Entities.addEntity(
{ type: "Box",
position: { x: pos.x - LENGTH / 2.0,
y: pos.y + (HEIGHT / 2.0 + BUMPER_HEIGHT / 2.0),
z: pos.z - (WIDTH / 2.0 + BUMPER_WIDTH / 2.0) * SCALE },
dimensions: { x: (LENGTH - 3.0 * HOLE_SIZE) * SCALE / 2.0, y: BUMPER_HEIGHT, z: BUMPER_WIDTH * SCALE },
color: { red: 237, green: 201, blue: 175 } }));
tableParts.push(Entities.addEntity(
{ type: "Box",
position: { x: pos.x + LENGTH / 2.0,
y: pos.y + (HEIGHT / 2.0 + BUMPER_HEIGHT / 2.0),
z: pos.z - (WIDTH / 2.0 + BUMPER_WIDTH / 2.0) * SCALE },
dimensions: { x: (LENGTH - 3.0 * HOLE_SIZE) * SCALE / 2.0, y: BUMPER_HEIGHT, z: BUMPER_WIDTH * SCALE },
color: { red: 237, green: 201, blue: 175 } }));
tableParts.push(Entities.addEntity(
{ type: "Box",
position: { x: pos.x - LENGTH / 2.0,
y: pos.y + (HEIGHT / 2.0 + BUMPER_HEIGHT / 2.0),
z: pos.z + (WIDTH / 2.0 + BUMPER_WIDTH / 2.0) * SCALE },
dimensions: { x: (LENGTH - 3.0 * HOLE_SIZE) * SCALE / 2.0, y: BUMPER_HEIGHT, z: BUMPER_WIDTH * SCALE },
color: { red: 237, green: 201, blue: 175 } }));
tableParts.push(Entities.addEntity(
{ type: "Box",
position: { x: pos.x + LENGTH / 2.0,
y: pos.y + (HEIGHT / 2.0 + BUMPER_HEIGHT / 2.0),
z: pos.z + (WIDTH / 2.0 + BUMPER_WIDTH / 2.0) * SCALE },
dimensions: { x: (LENGTH - 3.0 * HOLE_SIZE) * SCALE / 2.0, y: BUMPER_HEIGHT, z: BUMPER_WIDTH * SCALE },
color: { red: 237, green: 201, blue: 175 } }));
// End bumpers
tableParts.push(Entities.addEntity(
{ type: "Box",
position: { x: pos.x + (LENGTH / 2.0 + BUMPER_WIDTH / 2.0) * SCALE,
y: pos.y + (HEIGHT / 2.0 + BUMPER_HEIGHT / 2.0),
z: pos.z },
dimensions: { z: (WIDTH - 2.0 * HOLE_SIZE) * SCALE, y: BUMPER_HEIGHT, x: BUMPER_WIDTH * SCALE },
color: { red: 237, green: 201, blue: 175 } }));
tableParts.push(Entities.addEntity(
{ type: "Box",
position: { x: pos.x - (LENGTH / 2.0 + BUMPER_WIDTH / 2.0) * SCALE,
y: pos.y + (HEIGHT / 2.0 + BUMPER_HEIGHT / 2.0),
z: pos.z },
dimensions: { z: (WIDTH - 2.0 * HOLE_SIZE) * SCALE, y: BUMPER_HEIGHT, x: BUMPER_WIDTH * SCALE },
color: { red: 237, green: 201, blue: 175 } }));
}
function makeBalls(pos) {
var colors = [{ red: 255, green: 255, blue: 0}, // Yellow
{ red: 0, green: 0, blue: 255}, // Blue
{ red: 255, green: 0, blue: 0}, // Red
{ red: 128, green: 0, blue: 128}, // Purple
{ red: 255, green: 165, blue: 0}, // Orange
{ red: 0, green: 255, blue: 0}, // Green
{ red: 128, green: 0, blue: 0}, // Maroon
{ red: 0, green: 0, blue: 0}, // Black
{ red: 255, green: 255, blue: 224}, // Light Yellow
{ red: 173, green: 216, blue: 230}, // Light Blue
{ red: 205, green: 92, blue: 92}, // Indian Red
{ red: 218, green: 112, blue: 214}, // Orchid
{ red: 218, green: 165, blue: 32}, // GoldenRod
{ red: 255, green: 99, blue: 71}, // Tomato
{ red: 128, green: 128, blue: 128}]; // Gray
// Object balls
var ballPosition = { x: pos.x + (LENGTH / 4.0) * SCALE, y: pos.y + DROP_HEIGHT, z: pos.z };
for (var row = 1; row <= 5; row++) {
ballPosition.z = pos.z - ((row - 1.0) / 2.0 * (BALL_SIZE + BALL_GAP) * SCALE);
for (var spot = 0; spot < row; spot++) {
balls.push(Entities.addEntity(
{ type: "Sphere",
position: ballPosition,
dimensions: { x: BALL_SIZE * SCALE, y: BALL_SIZE * SCALE, z: BALL_SIZE * SCALE },
color: colors[balls.length],
gravity: { x: 0, y: GRAVITY, z: 0 },
ignoreCollisions: false,
damping: 0.40,
collisionsWillMove: true }));
ballPosition.z += (BALL_SIZE + BALL_GAP) * SCALE;
}
ballPosition.x += (BALL_GAP + Math.sqrt(3.0) / 2.0 * BALL_SIZE) * SCALE;
}
// Cue Ball
ballPosition = { x: pos.x - (LENGTH / 4.0) * SCALE, y: pos.y + DROP_HEIGHT, z: pos.z };
balls.push(Entities.addEntity(
{ type: "Sphere",
position: ballPosition,
dimensions: { x: BALL_SIZE * SCALE, y: BALL_SIZE * SCALE, z: BALL_SIZE * SCALE },
color: { red: 255, green: 255, blue: 255 },
gravity: { x: 0, y: GRAVITY, z: 0 },
ignoreCollisions: false,
damping: 0.40,
collisionsWillMove: true }));
}
function shootCue(velocity) {
var DISTANCE_FROM_CAMERA = BALL_SIZE * 5.0 * SCALE;
var camera = Camera.getPosition();
var forwardVector = Quat.getFront(Camera.getOrientation());
var cuePosition = Vec3.sum(camera, Vec3.multiply(forwardVector, DISTANCE_FROM_CAMERA));
var velocity = Vec3.multiply(forwardVector, velocity);
var BULLET_LIFETIME = 3.0;
var BULLET_GRAVITY = 0.0;
bulletID = Entities.addEntity(
{ type: "Sphere",
position: cuePosition,
dimensions: { x: BALL_SIZE * SCALE, y: BALL_SIZE * SCALE, z: BALL_SIZE * SCALE },
color: { red: 255, green: 255, blue: 255 },
velocity: velocity,
lifetime: BULLET_LIFETIME,
gravity: { x: 0, y: BULLET_GRAVITY, z: 0 },
damping: 0.10,
density: 1000,
ignoreCollisions: false,
collisionsWillMove: true
});
}
function keyReleaseEvent(event) {
if ((startStroke > 0) && event.text == "SPACE") {
var endTime = new Date().getTime();
var delta = endTime - startStroke;
shootCue(delta / 100.0);
startStroke = 0;
}
}
function keyPressEvent(event) {
// Fire a cue ball
if ((startStroke == 0) && (event.text == "SPACE")) {
startStroke = new Date().getTime();
}
}
function cleanup() {
for (var i = 0; i < tableParts.length; i++) {
if (!tableParts[i].isKnownID) {
tableParts[i] = Entities.identifyEntity(tableParts[i]);
}
Entities.deleteEntity(tableParts[i]);
}
for (var i = 0; i < balls.length; i++) {
if (!balls[i].isKnownID) {
balls[i] = Entities.identifyEntity(balls[i]);
}
Entities.deleteEntity(balls[i]);
}
Overlays.deleteOverlay(reticle);
}
var tableCenter = Vec3.sum(MyAvatar.position, Vec3.multiply(4.0, Quat.getFront(Camera.getOrientation())));
makeTable(tableCenter);
makeBalls(tableCenter);
Script.scriptEnding.connect(cleanup);
Controller.keyPressEvent.connect(keyPressEvent);
Controller.keyReleaseEvent.connect(keyReleaseEvent);