733 lines
23 KiB
JavaScript
733 lines
23 KiB
JavaScript
import * as THREE from "three";
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import * as CANNON from "cannon-es";
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import { GLTFLoader } from "three/examples/jsm/loaders/GLTFLoader.js";
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import dieModelBytes from "./assets/dice/die.glb";
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const LIMIT = 252;
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const TAU = Math.PI * 2;
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const MAX_RETHROWS = 8;
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const RANDOM_WORD = new Uint32Array(1);
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const MOTION_PRESETS = Object.freeze({
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current: Object.freeze({
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name: "Current",
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gravity: 24,
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playback: 1.7,
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fixedStep: 1 / 120,
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maxSubSteps: 12,
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velocityScale: 1,
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spinScale: 1,
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launchY: null,
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linearDamping: 0.22,
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angularDamping: 0.2,
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sleepSpeedLimit: 0.16,
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sleepTimeLimit: 0.38,
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minDuration: 0.8,
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}),
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balanced: Object.freeze({
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name: "Balanced realism",
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gravity: 96,
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playback: 1.15,
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fixedStep: 1 / 240,
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maxSubSteps: 20,
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velocityScale: 2,
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spinScale: 1.45,
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launchY: [4, 7],
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linearDamping: 0.08,
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angularDamping: 0.06,
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sleepSpeedLimit: 0.28,
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sleepTimeLimit: 0.18,
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minDuration: 0.45,
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}),
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literal: Object.freeze({
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name: "Literal 20 mm scale",
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gravity: 981,
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playback: 1,
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fixedStep: 1 / 600,
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maxSubSteps: 32,
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velocityScale: Math.sqrt(981 / 24),
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spinScale: Math.sqrt(981 / 24),
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launchY: [18, 30],
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linearDamping: 0.02,
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angularDamping: 0.015,
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sleepSpeedLimit: 1,
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sleepTimeLimit: 0.08,
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minDuration: 0.2,
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}),
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});
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const FACE_NORMALS = {
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1: new CANNON.Vec3(0, 0, -1),
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2: new CANNON.Vec3(0, -1, 0),
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3: new CANNON.Vec3(-1, 0, 0),
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4: new CANNON.Vec3(1, 0, 0),
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5: new CANNON.Vec3(0, 1, 0),
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6: new CANNON.Vec3(0, 0, 1),
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};
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function rollDie() {
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const bytes = new Uint8Array(1);
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for (;;) {
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crypto.getRandomValues(bytes);
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if (bytes[0] < LIMIT) return (bytes[0] % 6) + 1;
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}
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}
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function randomUnit() {
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crypto.getRandomValues(RANDOM_WORD);
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return RANDOM_WORD[0] / 0x100000000;
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}
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function randomBetween(min, max) {
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return min + randomUnit() * (max - min);
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}
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function randomSigned(min, max) {
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return (randomUnit() < 0.5 ? -1 : 1) * randomBetween(min, max);
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}
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function randomQuaternion(target) {
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const u1 = randomUnit();
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const u2 = randomUnit();
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const u3 = randomUnit();
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const a = Math.sqrt(1 - u1);
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const b = Math.sqrt(u1);
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target.set(
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a * Math.sin(TAU * u2),
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a * Math.cos(TAU * u2),
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b * Math.sin(TAU * u3),
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b * Math.cos(TAU * u3),
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);
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return target;
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}
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function restingQuaternion(value, yaw = 0) {
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const rotations = {
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1: [Math.PI / 2, 0, 0],
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2: [Math.PI, 0, 0],
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3: [0, 0, -Math.PI / 2],
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4: [0, 0, Math.PI / 2],
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5: [0, 0, 0],
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6: [-Math.PI / 2, 0, 0],
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};
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const face = new THREE.Quaternion().setFromEuler(
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new THREE.Euler(...rotations[value], "XYZ"),
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);
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const aroundUp = new THREE.Quaternion().setFromAxisAngle(
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new THREE.Vector3(0, 1, 0),
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yaw,
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);
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return aroundUp.multiply(face);
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}
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function upwardFace(body) {
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const alignments = [];
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for (const [value, localNormal] of Object.entries(FACE_NORMALS)) {
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const worldNormal = body.quaternion.vmult(localNormal);
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alignments.push({ value: Number(value), alignment: worldNormal.y });
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}
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alignments.sort((a, b) => b.alignment - a.alignment);
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return {
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value: alignments[0].value,
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alignment: alignments[0].alignment,
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margin: alignments[0].alignment - alignments[1].alignment,
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};
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}
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function modelBuffer() {
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return dieModelBytes.buffer.slice(
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dieModelBytes.byteOffset,
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dieModelBytes.byteOffset + dieModelBytes.byteLength,
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);
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}
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function makeMaterial(source) {
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const isPip = /white|enamel/i.test(source?.name || "");
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return new THREE.MeshPhysicalMaterial({
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name: isPip ? "Ivory pips" : "Red resin",
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color: isPip ? 0xf8f5ec : 0xc91f2b,
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roughness: isPip ? 0.38 : 0.27,
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metalness: 0,
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clearcoat: isPip ? 0.14 : 0.34,
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clearcoatRoughness: isPip ? 0.42 : 0.32,
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});
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}
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async function loadTemplate() {
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const gltf = await new GLTFLoader().parseAsync(modelBuffer(), "");
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gltf.scene.traverse((object) => {
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if (!object.isMesh) return;
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object.material = Array.isArray(object.material)
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? object.material.map(makeMaterial)
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: makeMaterial(object.material);
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object.castShadow = true;
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object.geometry.computeBoundingSphere();
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});
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const bounds = new THREE.Box3().setFromObject(gltf.scene);
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const center = bounds.getCenter(new THREE.Vector3());
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const size = bounds.getSize(new THREE.Vector3());
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const centered = new THREE.Group();
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gltf.scene.position.sub(center);
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centered.add(gltf.scene);
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centered.scale.setScalar(2 / Math.max(size.x, size.y, size.z));
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return centered;
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}
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/* A slightly inset box is the stable collision proxy. The visible mesh keeps
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Fusion's exact fillets; the 5% inset keeps the proxy inside that silhouette
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while avoiding stacked contacts that can inject energy into small bodies. */
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function addDieCollider(body) {
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body.addShape(new CANNON.Box(new CANNON.Vec3(0.95, 0.95, 0.95)));
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}
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function makePhysicsWorld() {
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const world = new CANNON.World({ gravity: new CANNON.Vec3(0, -24, 0) });
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world.allowSleep = true;
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world.broadphase = new CANNON.SAPBroadphase(world);
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world.solver.iterations = 18;
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const dieMaterial = new CANNON.Material("die");
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const tableMaterial = new CANNON.Material("table");
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const bumperMaterial = new CANNON.Material("bumper");
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world.addContactMaterial(new CANNON.ContactMaterial(dieMaterial, tableMaterial, {
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friction: 0.6,
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restitution: 0.2,
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contactEquationStiffness: 1e8,
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contactEquationRelaxation: 3,
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}));
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world.addContactMaterial(new CANNON.ContactMaterial(dieMaterial, dieMaterial, {
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friction: 0.3,
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restitution: 0.3,
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contactEquationStiffness: 1e8,
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contactEquationRelaxation: 3,
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}));
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world.addContactMaterial(new CANNON.ContactMaterial(dieMaterial, bumperMaterial, {
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friction: 0.52,
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restitution: 0.18,
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contactEquationStiffness: 1e8,
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contactEquationRelaxation: 3,
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}));
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const table = new CANNON.Body({ mass: 0, material: tableMaterial });
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table.addShape(new CANNON.Plane());
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table.quaternion.setFromEuler(-Math.PI / 2, 0, 0);
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world.addBody(table);
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return { world, dieMaterial, tableMaterial, bumperMaterial };
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}
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function addStaticBox(world, material, halfExtents, position) {
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const body = new CANNON.Body({ mass: 0, material });
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body.addShape(new CANNON.Box(new CANNON.Vec3(...halfExtents)));
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body.position.set(...position);
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world.addBody(body);
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return body;
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}
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function addCrapsTable(scene, world, tableMaterial, bumperMaterial) {
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const felt = new THREE.MeshStandardMaterial({
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color: 0x0b6337,
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roughness: 0.96,
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metalness: 0,
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});
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const railMaterial = new THREE.MeshStandardMaterial({
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color: 0x164832,
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roughness: 0.88,
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metalness: 0,
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});
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const bumperVisualMaterial = new THREE.MeshStandardMaterial({
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color: 0x0b3626,
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roughness: 0.82,
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metalness: 0,
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});
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const floor = new THREE.Mesh(new THREE.PlaneGeometry(21.4, 13.4), felt);
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floor.rotation.x = -Math.PI / 2;
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floor.position.y = -0.055;
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floor.receiveShadow = true;
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scene.add(floor);
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function addVisualBox(size, position, material = railMaterial) {
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const mesh = new THREE.Mesh(new THREE.BoxGeometry(...size), material);
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mesh.position.set(...position);
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mesh.castShadow = true;
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mesh.receiveShadow = true;
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scene.add(mesh);
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return mesh;
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}
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addVisualBox([21.4, 6, 0.46], [0, 3, -6.7]);
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addVisualBox([0.5, 5, 13.4], [-10.7, 2.5, 0]);
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addVisualBox([0.5, 5, 13.4], [10.7, 2.5, 0]);
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addVisualBox([21.4, 1.4, 0.4], [0, 0.7, 6.7]);
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addStaticBox(world, tableMaterial, [0.25, 2.5, 6.7], [-10.7, 2.5, 0]);
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addStaticBox(world, tableMaterial, [0.25, 2.5, 6.7], [10.7, 2.5, 0]);
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addStaticBox(world, tableMaterial, [10.7, 0.7, 0.2], [0, 0.7, 6.7]);
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const panelYaw = [0.04, 0.08, -0.08, -0.04];
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for (let panel = 0; panel < 4; panel++) {
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const bumperBody = new CANNON.Body({ mass: 0, material: bumperMaterial });
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bumperBody.addShape(new CANNON.Box(new CANNON.Vec3(2.7, 3, 0.2)));
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bumperBody.position.set(-8.025 + panel * 5.35, 3, -6.55);
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bumperBody.quaternion.setFromEuler(0, panelYaw[panel], 0);
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bumperBody.userData = { surface: "backstop" };
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world.addBody(bumperBody);
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}
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const bumpPositions = [];
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const rowCount = 8;
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const columnCount = 34;
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for (let row = 0; row < rowCount; row++) {
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const y = 0.42 + row * 0.56;
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const offset = row % 2 === 0 ? 0 : 0.29;
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for (let column = 0; column < columnCount; column++) {
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const x = -9.7 + column * 0.58 + offset;
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if (x > 9.7) continue;
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bumpPositions.push([x, y, -6.28]);
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}
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}
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const bumpGeometry = new THREE.ConeGeometry(0.27, 0.3, 4);
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const bumps = new THREE.InstancedMesh(
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bumpGeometry,
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bumperVisualMaterial,
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bumpPositions.length,
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);
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const bumpTransform = new THREE.Object3D();
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bumpPositions.forEach(([x, y, z], index) => {
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bumpTransform.position.set(x, y, z + 0.01);
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bumpTransform.rotation.set(Math.PI / 2, 0, index % 2 === 0 ? 0 : Math.PI / 4);
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bumpTransform.updateMatrix();
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bumps.setMatrixAt(index, bumpTransform.matrix);
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});
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bumps.castShadow = true;
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bumps.receiveShadow = true;
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scene.add(bumps);
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}
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function makeThrowPlan(count) {
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if (count !== 2) {
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return Array.from({ length: count }, (_, index) => {
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const side = index % 2 === 0 ? -1 : 1;
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return {
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position: [side * 1.8, randomBetween(2.45, 2.8), randomBetween(-0.75, -0.45)],
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velocity: [-side * randomBetween(1.7, 2.3), randomBetween(0.3, 0.8), randomBetween(0.2, 0.65)],
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};
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});
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}
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const chance = randomUnit();
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const mode = chance < 0.55 ? "cross" : chance < 0.9 ? "collision" : "overtake";
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return [0, 1].map((index) => {
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const side = index === 0 ? -1 : 1;
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if (mode === "cross") {
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return {
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position: [side * 1.8, randomBetween(2.45, 2.8), index === 0 ? 1.65 : -1.65],
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velocity: [-side * randomBetween(2.6, 3.2), randomBetween(0.3, 0.8), randomBetween(-0.1, 0.1)],
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};
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}
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if (mode === "overtake") {
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return {
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position: [index === 0 ? -0.8 : 0.8, randomBetween(2.45, 2.8), index === 0 ? -2.15 : 1.25],
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velocity: [randomBetween(-0.25, 0.25), randomBetween(0.3, 0.8), index === 0 ? randomBetween(2.1, 2.7) : randomBetween(0.35, 0.8)],
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};
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}
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return {
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position: [side * 1.8, randomBetween(2.45, 2.8), randomBetween(-0.75, -0.45)],
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velocity: [-side * randomBetween(1.55, 2.05), randomBetween(0.3, 0.8), randomBetween(0.15, 0.55)],
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};
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});
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}
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function makeCrapsThrowPlan(count) {
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return Array.from({ length: count }, (_, index) => {
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const side = index % 2 === 0 ? -1 : 1;
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return {
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position: [
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side * randomBetween(1.8, 2.3),
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randomBetween(2.45, 2.9),
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randomBetween(4.2, 4.75) + index * randomBetween(-0.12, 0.12),
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],
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velocity: [
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-side * randomBetween(0.2, 0.6) + randomBetween(-0.2, 0.2),
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randomBetween(0.3, 0.8),
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-randomBetween(25, 28),
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],
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};
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});
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}
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function resetBodyForThrow(body, launch, motion, strength = 1) {
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const liftScale = Math.sqrt(strength);
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body.wakeUp();
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body.position.set(...launch.position);
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randomQuaternion(body.quaternion);
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body.velocity.set(
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launch.velocity[0] * motion.velocityScale * strength,
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motion.launchY
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? randomBetween(motion.launchY[0], motion.launchY[1]) * liftScale
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: launch.velocity[1] * liftScale,
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launch.velocity[2] * motion.velocityScale * strength,
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);
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const spinStrength = 0.7 + strength * 0.3;
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body.angularVelocity.set(
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randomSigned(10, 15) * motion.spinScale * spinStrength,
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randomSigned(11, 17) * motion.spinScale * spinStrength,
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randomSigned(10, 15) * motion.spinScale * spinStrength,
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);
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body.force.setZero();
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body.torque.setZero();
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body.previousPosition.copy(body.position);
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body.interpolatedPosition.copy(body.position);
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body.previousQuaternion.copy(body.quaternion);
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body.interpolatedQuaternion.copy(body.quaternion);
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body.aabbNeedsUpdate = true;
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}
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function rethrowBody(body, towardCenter, motion) {
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const velocityScale = motion.velocityScale;
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body.wakeUp();
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body.position.y += 0.18;
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body.velocity.set(
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towardCenter
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? THREE.MathUtils.clamp(
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(-body.position.x * 0.48 + randomBetween(-0.3, 0.3)) * velocityScale,
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-3.2 * velocityScale,
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3.2 * velocityScale,
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)
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: randomBetween(-1.15, 1.15) * velocityScale,
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randomBetween(2.1, 2.8) * velocityScale,
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towardCenter
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? THREE.MathUtils.clamp(
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(-body.position.z * 0.48 + randomBetween(-0.3, 0.3)) * velocityScale,
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-3.2 * velocityScale,
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3.2 * velocityScale,
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)
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: randomBetween(-1.15, 1.15) * velocityScale,
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);
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body.angularVelocity.set(
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randomSigned(8, 13) * motion.spinScale,
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randomSigned(9, 14) * motion.spinScale,
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randomSigned(8, 13) * motion.spinScale,
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);
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body.force.setZero();
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body.torque.setZero();
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body.aabbNeedsUpdate = true;
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}
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async function mount(canvas, count = 2, options = {}) {
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if (!(canvas instanceof HTMLCanvasElement)) {
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throw new TypeError("Dice3D.mount requires a canvas element");
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}
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const sceneMode = options.scene === "craps" ? "craps" : "open";
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const isCrapsScene = sceneMode === "craps";
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const cameraHalfHeight = isCrapsScene ? 7.6 : 5.8;
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const renderer = new THREE.WebGLRenderer({ canvas, alpha: true, antialias: true });
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renderer.setClearColor(0x000000, 0);
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renderer.setPixelRatio(Math.min(window.devicePixelRatio || 1, 2));
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renderer.outputColorSpace = THREE.SRGBColorSpace;
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renderer.toneMapping = THREE.ACESFilmicToneMapping;
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renderer.toneMappingExposure = 1.08;
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renderer.shadowMap.enabled = true;
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renderer.shadowMap.type = THREE.PCFSoftShadowMap;
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const scene = new THREE.Scene();
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const initialAspect = isCrapsScene ? 14 / 9 : 54 / 35;
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const camera = new THREE.OrthographicCamera(
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-cameraHalfHeight * initialAspect,
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cameraHalfHeight * initialAspect,
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cameraHalfHeight,
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-cameraHalfHeight,
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0.1,
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50,
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);
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camera.position.set(0, isCrapsScene ? 12.2 : 9.5, isCrapsScene ? 18.8 : 14.4);
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camera.lookAt(0, isCrapsScene ? 0.85 : 0.72, isCrapsScene ? -0.35 : 0);
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const dieCorners = [];
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for (const x of [-1, 1]) {
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for (const y of [-1, 1]) {
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for (const z of [-1, 1]) dieCorners.push(new THREE.Vector3(x, y, z));
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}
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}
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const projectedCorner = new THREE.Vector3();
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const framePosition = new THREE.Vector3();
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const frameQuaternion = new THREE.Quaternion();
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function dieIsFullyVisible(body) {
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framePosition.set(body.position.x, body.position.y, body.position.z);
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frameQuaternion.set(
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body.quaternion.x,
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body.quaternion.y,
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body.quaternion.z,
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body.quaternion.w,
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);
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return dieCorners.every((corner) => {
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projectedCorner
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.copy(corner)
|
|
.applyQuaternion(frameQuaternion)
|
|
.add(framePosition)
|
|
.project(camera);
|
|
return Math.abs(projectedCorner.x) <= 0.98 && Math.abs(projectedCorner.y) <= 0.98;
|
|
});
|
|
}
|
|
|
|
scene.add(new THREE.HemisphereLight(0xffffff, 0x6b2426, 2.05));
|
|
const key = new THREE.DirectionalLight(0xffffff, 2.8);
|
|
key.position.set(-4, 8, 7);
|
|
key.castShadow = true;
|
|
key.shadow.mapSize.set(1024, 1024);
|
|
const shadowExtent = isCrapsScene ? 12 : 8;
|
|
key.shadow.camera.left = -shadowExtent;
|
|
key.shadow.camera.right = shadowExtent;
|
|
key.shadow.camera.top = shadowExtent;
|
|
key.shadow.camera.bottom = -shadowExtent;
|
|
key.shadow.camera.near = 1;
|
|
key.shadow.camera.far = 30;
|
|
key.shadow.bias = -0.0004;
|
|
key.shadow.normalBias = 0.025;
|
|
key.shadow.radius = 4;
|
|
scene.add(key);
|
|
const fill = new THREE.DirectionalLight(0xffc8c4, 0.9);
|
|
fill.position.set(5, 3, 7);
|
|
scene.add(fill);
|
|
|
|
const template = await loadTemplate();
|
|
const { world, dieMaterial, tableMaterial, bumperMaterial } = makePhysicsWorld();
|
|
const dice = [];
|
|
const spacing = 2.75;
|
|
|
|
if (isCrapsScene) {
|
|
addCrapsTable(scene, world, tableMaterial, bumperMaterial);
|
|
} else {
|
|
const shadowFloor = new THREE.Mesh(
|
|
new THREE.PlaneGeometry(24, 18),
|
|
new THREE.ShadowMaterial({ color: 0x000000, opacity: 0.2 }),
|
|
);
|
|
shadowFloor.rotation.x = -Math.PI / 2;
|
|
shadowFloor.position.y = -0.055;
|
|
shadowFloor.receiveShadow = true;
|
|
scene.add(shadowFloor);
|
|
}
|
|
|
|
for (let index = 0; index < count; index++) {
|
|
const holder = new THREE.Group();
|
|
holder.add(template.clone(true));
|
|
const x = (index - (count - 1) / 2) * spacing;
|
|
const initialValue = rollDie();
|
|
const initialRotation = restingQuaternion(initialValue, randomBetween(0, TAU));
|
|
holder.position.set(x, 1, 0);
|
|
holder.quaternion.copy(initialRotation);
|
|
scene.add(holder);
|
|
|
|
const body = new CANNON.Body({
|
|
mass: 1,
|
|
material: dieMaterial,
|
|
linearDamping: 0.22,
|
|
angularDamping: 0.2,
|
|
allowSleep: true,
|
|
sleepSpeedLimit: 0.16,
|
|
sleepTimeLimit: 0.38,
|
|
});
|
|
addDieCollider(body);
|
|
body.position.set(x, 1, 0);
|
|
body.quaternion.set(
|
|
initialRotation.x,
|
|
initialRotation.y,
|
|
initialRotation.z,
|
|
initialRotation.w,
|
|
);
|
|
world.addBody(body);
|
|
|
|
const die = { holder, body, value: initialValue, hitBackstop: false };
|
|
body.addEventListener("collide", (event) => {
|
|
if (event.body?.userData?.surface === "backstop") die.hitBackstop = true;
|
|
});
|
|
dice.push(die);
|
|
}
|
|
|
|
function syncVisuals() {
|
|
for (const die of dice) {
|
|
const { position, quaternion } = die.body;
|
|
die.holder.position.set(position.x, position.y, position.z);
|
|
die.holder.quaternion.set(quaternion.x, quaternion.y, quaternion.z, quaternion.w);
|
|
}
|
|
}
|
|
|
|
function resize() {
|
|
const width = Math.max(1, canvas.clientWidth);
|
|
const height = Math.max(1, canvas.clientHeight);
|
|
const aspect = width / height;
|
|
const halfHeight = cameraHalfHeight;
|
|
camera.left = -halfHeight * aspect;
|
|
camera.right = halfHeight * aspect;
|
|
camera.top = halfHeight;
|
|
camera.bottom = -halfHeight;
|
|
camera.updateProjectionMatrix();
|
|
renderer.setSize(width, height, false);
|
|
renderer.render(scene, camera);
|
|
}
|
|
|
|
const observer = new ResizeObserver(resize);
|
|
observer.observe(canvas);
|
|
resize();
|
|
|
|
let busy = false;
|
|
let frameRequest = 0;
|
|
let destroyed = false;
|
|
let motion = MOTION_PRESETS.balanced;
|
|
let throwForce = 50;
|
|
|
|
function finishRoll(resolve) {
|
|
syncVisuals();
|
|
renderer.render(scene, camera);
|
|
const values = dice.map((die) => {
|
|
die.value = upwardFace(die.body).value;
|
|
return die.value;
|
|
});
|
|
busy = false;
|
|
resolve(values);
|
|
}
|
|
|
|
function diceNeedingRethrow() {
|
|
return dice.flatMap((die) => {
|
|
const face = upwardFace(die.body);
|
|
const cocked = face.alignment < 0.9 || face.margin < 0.08;
|
|
const outsideFrame = !dieIsFullyVisible(die.body);
|
|
return cocked || outsideFrame ? [{ die, outsideFrame }] : [];
|
|
});
|
|
}
|
|
|
|
function rethrowInvalidDice(invalidDice) {
|
|
invalidDice.forEach(({ die, outsideFrame }) => {
|
|
rethrowBody(die.body, outsideFrame, motion);
|
|
});
|
|
}
|
|
|
|
function roll() {
|
|
if (busy) return Promise.resolve(null);
|
|
busy = true;
|
|
world.gravity.set(0, -motion.gravity, 0);
|
|
dice.forEach((die) => {
|
|
die.body.linearDamping = motion.linearDamping;
|
|
die.body.angularDamping = motion.angularDamping;
|
|
die.body.sleepSpeedLimit = motion.sleepSpeedLimit;
|
|
die.body.sleepTimeLimit = motion.sleepTimeLimit;
|
|
});
|
|
const strength = isCrapsScene ? 0.9 + throwForce * 0.0025 : 1;
|
|
const plan = isCrapsScene
|
|
? makeCrapsThrowPlan(dice.length)
|
|
: makeThrowPlan(dice.length);
|
|
dice.forEach((die, index) => {
|
|
die.hitBackstop = false;
|
|
resetBodyForThrow(die.body, plan[index], motion, strength);
|
|
});
|
|
const physicsStep = isCrapsScene
|
|
? Math.min(motion.fixedStep, 1 / 360)
|
|
: motion.fixedStep;
|
|
const maxSubSteps = isCrapsScene
|
|
? Math.max(motion.maxSubSteps, 24)
|
|
: motion.maxSubSteps;
|
|
|
|
const reducedMotion = matchMedia("(prefers-reduced-motion: reduce)").matches;
|
|
if (reducedMotion) {
|
|
/* Every rethrow is followed by a complete settle pass. At the cap we
|
|
accept the best settled reading; we never freeze a fresh launch. */
|
|
for (let rethrowCount = 0; ; rethrowCount++) {
|
|
const settleSteps = Math.ceil(6 / physicsStep);
|
|
for (let step = 0; step < settleSteps; step++) world.step(physicsStep);
|
|
const invalidDice = diceNeedingRethrow();
|
|
if (!invalidDice.length || rethrowCount === MAX_RETHROWS) break;
|
|
rethrowInvalidDice(invalidDice);
|
|
}
|
|
dice.forEach((die) => die.body.sleep());
|
|
return new Promise((resolve) => finishRoll(resolve));
|
|
}
|
|
|
|
let startedAt = performance.now();
|
|
let previous = startedAt;
|
|
let rethrowCount = 0;
|
|
return new Promise((resolve) => {
|
|
function frame(now) {
|
|
if (destroyed) return;
|
|
const elapsedSeconds = (now - startedAt) / 1000;
|
|
const frameSeconds = Math.min(0.05, (now - previous) / 1000);
|
|
previous = now;
|
|
/* Each preset owns its integration and presentation timescale. */
|
|
world.step(
|
|
physicsStep,
|
|
frameSeconds * motion.playback,
|
|
maxSubSteps,
|
|
);
|
|
syncVisuals();
|
|
renderer.render(scene, camera);
|
|
|
|
const asleep = dice.every((die) => die.body.sleepState === CANNON.Body.SLEEPING);
|
|
if ((elapsedSeconds > motion.minDuration && asleep) || elapsedSeconds > 6) {
|
|
if (!asleep) dice.forEach((die) => die.body.sleep());
|
|
const invalidDice = diceNeedingRethrow();
|
|
if (invalidDice.length && rethrowCount < MAX_RETHROWS) {
|
|
rethrowInvalidDice(invalidDice);
|
|
rethrowCount++;
|
|
startedAt = now;
|
|
previous = now;
|
|
frameRequest = requestAnimationFrame(frame);
|
|
} else {
|
|
finishRoll(resolve);
|
|
}
|
|
} else {
|
|
frameRequest = requestAnimationFrame(frame);
|
|
}
|
|
}
|
|
frameRequest = requestAnimationFrame(frame);
|
|
});
|
|
}
|
|
|
|
return {
|
|
roll,
|
|
dice,
|
|
isBusy: () => busy,
|
|
getMotionPreset: () => motion.name,
|
|
getThrowForce: () => throwForce,
|
|
getLastThrowDiagnostics: () => ({
|
|
backstopHits: dice.filter((die) => die.hitBackstop).length,
|
|
dice: dice.length,
|
|
}),
|
|
setThrowForce(value) {
|
|
if (busy) return false;
|
|
throwForce = THREE.MathUtils.clamp(Number(value) || 0, 0, 100);
|
|
return true;
|
|
},
|
|
setMotionPreset(name) {
|
|
if (!(name in MOTION_PRESETS)) throw new RangeError(`Unknown motion preset: ${name}`);
|
|
if (busy) return false;
|
|
motion = MOTION_PRESETS[name];
|
|
return true;
|
|
},
|
|
destroy() {
|
|
destroyed = true;
|
|
cancelAnimationFrame(frameRequest);
|
|
observer.disconnect();
|
|
const geometries = new Set();
|
|
const materials = new Set();
|
|
scene.traverse((object) => {
|
|
if (!object.isMesh) return;
|
|
if (object.geometry) geometries.add(object.geometry);
|
|
const list = Array.isArray(object.material) ? object.material : [object.material];
|
|
list.filter(Boolean).forEach((material) => materials.add(material));
|
|
});
|
|
geometries.forEach((geometry) => geometry.dispose());
|
|
materials.forEach((material) => {
|
|
for (const value of Object.values(material)) {
|
|
if (value?.isTexture) value.dispose();
|
|
}
|
|
material.dispose();
|
|
});
|
|
world.bodies.slice().forEach((body) => world.removeBody(body));
|
|
renderer.renderLists.dispose();
|
|
renderer.dispose();
|
|
scene.clear();
|
|
},
|
|
};
|
|
}
|
|
|
|
window.Dice3D = { mount, rollDie, motionPresets: Object.keys(MOTION_PRESETS) };
|