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Update index.html
Browse files- index.html +193 -19
index.html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>Evolution Simulation</title>
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<script src="https://cdn.babylonjs.com/babylon.js"></script>
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<style>
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body, html {
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width: 100%;
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height: 100%;
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margin: 0;
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overflow: hidden;
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}
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#roundDisplay {
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position: absolute;
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top: 10px;
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left: 10px;
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color: white;
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font-family: Arial, sans-serif;
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font-size: 20px;
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}
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</style>
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</head>
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<body>
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<canvas id="renderCanvas"></canvas>
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<div id="roundDisplay">Round: 0</div>
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<script>
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const canvas = document.getElementById("renderCanvas");
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const engine = new BABYLON.Engine(canvas, true);
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const roundDisplay = document.getElementById("roundDisplay");
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let round = 0;
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const createScene = function () {
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const scene = new BABYLON.Scene(engine);
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const camera = new BABYLON.ArcRotateCamera("camera", -Math.PI / 2, Math.PI / 2.5, 3, new BABYLON.Vector3(0, 0, 0), scene);
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camera.attachControl(canvas, true);
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const light = new BABYLON.HemisphericLight("light", new BABYLON.Vector3(1, 1, 0), scene);
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light.intensity = 0.7;
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// Ground
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const ground = BABYLON.MeshBuilder.CreateGround("ground", {width: 10, height: 10}, scene);
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// Elephants
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let elephants = [];
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for (let i = 0; i < 5; i++) {
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const elephant = BABYLON.MeshBuilder.CreateSphere("elephant", {diameter: 0.5}, scene);
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elephant.position.y = 0.5;
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elephant.position.x = Math.random() * 10 - 5;
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elephant.position.z = Math.random() * 10 - 5;
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elephants.push(elephant);
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}
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// Prey
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let prey = [];
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for (let i = 0; i < 10; i++) {
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const p = BABYLON.MeshBuilder.CreateSphere("prey", {diameter: 0.3}, scene);
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p.position.y = 0.3;
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p.position.x = Math.random() * 10 - 5;
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p.position.z = Math.random() * 10 - 5;
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prey.push(p);
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}
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// Grass
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const grass = [];
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for (let i = 0; i < 20; i++) {
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const g = BABYLON.MeshBuilder.CreateBox("grass", {size: 0.2}, scene);
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g.position.y = 0.1;
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g.position.x = Math.random() * 10 - 5;
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g.position.z = Math.random() * 10 - 5;
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g.material = new BABYLON.StandardMaterial("grassMat", scene);
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g.material.diffuseColor = new BABYLON.Color3(0, 1, 0); // Green color
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grass.push(g);
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}
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// Elephant behavior
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scene.registerBeforeRender(function () {
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elephants.forEach(elephant => {
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const nearestPrey = prey.reduce((nearest, p) => {
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return BABYLON.Vector3.Distance(elephant.position, p.position) < BABYLON.Vector3.Distance(elephant.position, nearest.position) ? p : nearest;
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}, prey[0]);
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const direction = nearestPrey.position.subtract(elephant.position);
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direction.normalize();
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elephant.position.addInPlace(direction.scale(0.01));
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if (BABYLON.Vector3.Distance(elephant.position, nearestPrey.position) < 0.5) {
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// Prey is eaten
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nearestPrey.position.x = Math.random() * 10 - 5;
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nearestPrey.position.z = Math.random() * 10 - 5;
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}
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});
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});
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// Prey behavior
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scene.registerBeforeRender(function () {
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prey.forEach(p => {
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const randomDirection = new BABYLON.Vector3(Math.random() - 0.5, 0, Math.random() - 0.5);
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p.position.addInPlace(randomDirection.scale(0.01));
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});
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});
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// Grass regeneration
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let grassTimer = 0;
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scene.registerBeforeRender(function () {
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grassTimer += scene.getEngine().getDeltaTime();
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if (grassTimer > 1000) {
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grassTimer = 0;
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grass.forEach(g => {
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g.scaling.addInPlace(new BABYLON.Vector3(0.1, 0.1, 0.1));
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});
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}
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});
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// Evolution mechanics
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let elephantFitness = Array(elephants.length).fill(0);
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let preyFitness = Array(prey.length).fill(0);
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scene.registerBeforeRender(function () {
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elephants.forEach((elephant, i) => {
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const nearestPrey = prey.reduce((nearest, p) => {
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return BABYLON.Vector3.Distance(elephant.position, p.position) < BABYLON.Vector3.Distance(elephant.position, nearest.position) ? p : nearest;
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}, prey[0]);
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if (BABYLON.Vector3.Distance(elephant.position, nearestPrey.position) < 0.5) {
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elephantFitness[i] += 1;
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preyFitness[prey.indexOf(nearestPrey)] -= 1;
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} else {
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preyFitness[prey.indexOf(nearestPrey)] += 0.1;
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}
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// Mutation
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if (elephantFitness[i] > 10) {
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elephantFitness[i] = 0;
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elephant.position.x = Math.random() * 10 - 5;
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elephant.position.z = Math.random() * 10 - 5;
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}
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});
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prey.forEach((p, i) => {
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if (preyFitness[i] < -10) {
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preyFitness[i] = 0;
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p.position.x = Math.random() * 10 - 5;
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p.position.z = Math.random() * 10 - 5;
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}
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});
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// Adjust number of elephants and prey based on performance
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if (round % 10 === 0) {
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const totalElephantFitness = elephantFitness.reduce((a, b) => a + b, 0);
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const totalPreyFitness = preyFitness.reduce((a, b) => a + b, 0);
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if (totalElephantFitness > 50) {
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// Elephants are doing well, create more
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for (let i = 0; i < 2; i++) {
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const newElephant = BABYLON.MeshBuilder.CreateSphere("elephant", {diameter: 0.5}, scene);
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newElephant.position.y = 0.5;
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newElephant.position.x = Math.random() * 10 - 5;
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newElephant.position.z = Math.random() * 10 - 5;
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elephants.push(newElephant);
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elephantFitness.push(0);
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}
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} else if (totalPreyFitness < -50) {
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// Prey are doing poorly, create more
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for (let i = 0; i < 2; i++) {
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const newPrey = BABYLON.MeshBuilder.CreateSphere("prey", {diameter: 0.3}, scene);
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newPrey.position.y = 0.3;
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newPrey.position.x = Math.random() * 10 - 5;
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newPrey.position.z = Math.random() * 10 - 5;
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prey.push(newPrey);
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preyFitness.push(0);
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}
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}
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}
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round++;
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roundDisplay.textContent = `Round: ${round}`;
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});
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return scene;
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};
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const scene = createScene();
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engine.runRenderLoop(function () {
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scene.render();
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});
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window.addEventListener("resize", function () {
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engine.resize();
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});
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</script>
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</body>
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</html>
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