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index.html
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<!doctype html>
<html class="no-js" lang="">
<head>
<meta charset="utf-8">
<meta http-equiv="x-ua-compatible" content="ie=edge">
<title>WebGL 2048</title>
<meta name="description" content="A 2048 clone made in WebGL with Three.js">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="css/normalize.css">
<link rel="stylesheet" href="css/main.css">
<script src="js/three.min.js"></script>
<script src="js/threex.dynamictexture.js"></script>
</head>
<body>
<section id="info">
<h2>WebGL 2048</h2>
<p>Controls:
<br>← — MOVE LEFT
<br>→ — MOVE RIGHT
<br>↑ — MOVE UP
<br>↓ — MOVE DOWN
<br>[ENTER] — RESET
</p>
</section>
<section id="bottom"><small>By <a href="http://twitter.com/S0hail05">Sohail Ajmal</a></small>
</section>
<script>
"use strict";
var scene, camera, renderer;
var geometry, material;
var wireGeometry, wireMaterial;
var grid;
var initiater = 0;
var score;
var topScore = 2;
var scoreBox;
var topScoreBox;
var scoreTexture;
var topScoreTexture;
var scoreMaterial;
var topScoreMaterial
var FullBoxSize;
//var debug = false;
//2 4 8 16 32 64 128 256 1024 2048
var material2048;
//Added for performance
var Block2048;
var empty;
document.onkeydown = inputKey;
window.onresize = WindowResize;
init();
animate();
function init() {
"use strict";
//Memory Optimization
FullBoxSize = new THREE.Vector3(0.9, 0.9, 0.01);
score = 2;
//Scene setup
scene = new THREE.Scene();
camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 1, 10000);
camera.position.z = 5;
camera.position.x = 1.5;
camera.position.y = 1.5;
//Random Color
var col = new THREE.Color(Math.random(), Math.random(), Math.random());
//Geometry
geometry = new THREE.BoxGeometry(0.9, 0.9, 0.01);
//Random Color Material
//material = new THREE.MeshBasicMaterial({color: col});
//Text Textures
var dynamicTexture = [];
for (var i = 0; i < 13; i++) {
dynamicTexture[i] = new THREEx.DynamicTexture(128, 128);
dynamicTexture[i].clear('white');
if ((Math.pow(2, i) > 0) && (Math.pow(2, i) < 10)) {
//1 digit text
dynamicTexture[i].context.font = "120px monospace";
dynamicTexture[i].drawText(Math.pow(2, i), 30, 100, 'black');
} else if ((Math.pow(2, i) > 10) && (Math.pow(2, i) < 100)) {
//2 digit text
dynamicTexture[i].context.font = "100px monospace";
dynamicTexture[i].drawText(Math.pow(2, i), 8, 96, 'black');
} else if ((Math.pow(2, i) > 100) && (Math.pow(2, i) < 1000)) {
//3 digit text
dynamicTexture[i].context.font = "70px monospace";
dynamicTexture[i].drawText(Math.pow(2, i), 8, 86, 'black');
} else if (Math.pow(2, i) > 1000) {
//4 digit text
dynamicTexture[i].context.font = "70px monospace";
dynamicTexture[i].drawText(Math.pow(2, i), 8, 86, 'black');
} else {
//shouldn't happen, set to red if it does
dynamicTexture[i].context.font = "50px monospace";
dynamicTexture[i].drawText(Math.pow(2, i), 8, 80, 'red');
}
console.log(Math.pow(2, i));
dynamicTexture[i].texture.needsUpdate = true;
}
//Block Materials
material2048 = new Array(12);
material2048[0] = new THREE.MeshBasicMaterial({
color: 0x66FF66,
map: dynamicTexture[1].texture
});
material2048[1] = new THREE.MeshBasicMaterial({
color: 0x00CC00,
map: dynamicTexture[2].texture
});
material2048[2] = new THREE.MeshBasicMaterial({
color: 0x00FFCC,
map: dynamicTexture[3].texture
});
material2048[3] = new THREE.MeshBasicMaterial({
color: 0x00CCFF,
map: dynamicTexture[4].texture
});
material2048[4] = new THREE.MeshBasicMaterial({
color: 0x0099FF,
map: dynamicTexture[5].texture
});
material2048[5] = new THREE.MeshBasicMaterial({
color: 0x6666FF,
map: dynamicTexture[6].texture
});
material2048[6] = new THREE.MeshBasicMaterial({
color: 0xCC33FF,
map: dynamicTexture[7].texture
});
material2048[7] = new THREE.MeshBasicMaterial({
color: 0xCC0099,
map: dynamicTexture[8].texture
});
material2048[8] = new THREE.MeshBasicMaterial({
color: 0xFFFF66,
map: dynamicTexture[9].texture
});
material2048[9] = new THREE.MeshBasicMaterial({
color: 0xFF9966,
map: dynamicTexture[10].texture
});
material2048[10] = new THREE.MeshBasicMaterial({
color: 0x990000,
map: dynamicTexture[11].texture
});
material2048[11] = new THREE.MeshBasicMaterial({
color: 0x800000,
map: dynamicTexture[12].texture
});
//Optimize: pre-generate blocks
Block2048 = new Array(12);
for (var i = 0; i < 13; i++) {
Block2048[i] = new THREE.Mesh(geometry, material2048[i]);
Block2048[i].name = Math.pow(2, i + 1) + "";
}
//Empty blocks
wireGeometry = new THREE.BoxGeometry(0.9, 0.9, 0.01);
wireMaterial = new THREE.MeshBasicMaterial({
color: 0xffffff,
wireframe: true
});
empty = new THREE.Mesh(wireGeometry, wireMaterial);
empty.name = "empty";
//Fill 4x4 array with blocks
grid = new Array(4);
for (var j = 0; j < 4; j++) {
grid[j] = new Array(4);
for (var i = 0; i < 4; i++) {
grid[j][i] = empty.clone();
// grid[j][i].name = "empty";
// if (debug == true) {
// scene.add(grid[j][i]);
//}
}
}
//Backplanes
var BackGeometry = new THREE.BoxGeometry(0.9, 0.9, 0.01);
var BackColor = new THREE.Color(0xcccccc);
for (var j = 0; j < 4; j++) {
for (var i = 0; i < 4; i++) {
var BackMaterial = new THREE.MeshBasicMaterial({
color: BackColor
});
var Backplane = new THREE.Mesh(BackGeometry, BackMaterial);
Backplane.position.x = i;
Backplane.position.y = j;
Backplane.position.z = -0.01;
scene.add(Backplane);
}
}
//Score Boxes!
//Geometry
var scoreGeometry = new THREE.BoxGeometry(1.9, 1, 0.01);
//Text Textures
scoreTexture = new THREEx.DynamicTexture(256, 128);
topScoreTexture = new THREEx.DynamicTexture(256, 128);
//Materials
scoreMaterial = new THREE.MeshBasicMaterial({
map: scoreTexture.texture
});
topScoreMaterial = new THREE.MeshBasicMaterial({
map: topScoreTexture.texture
});
//Make Meshs
scoreBox = new THREE.Mesh(scoreGeometry, scoreMaterial);
topScoreBox = new THREE.Mesh(scoreGeometry, topScoreMaterial);
//Set Positions
scoreBox.position.add(new THREE.Vector3(0.5, 4.5, 0));
topScoreBox.position.add(new THREE.Vector3(2.5, 4.5, 0));
//Add to Scene
scene.add(scoreBox);
scene.add(topScoreBox);
//Run only once
if (initiater == 0) {
renderer = new THREE.WebGLRenderer({
alpha: 1
});
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
initiater = 1;
}
//Set background to random color
renderer.setClearColor(col, 0.5);
document.getElementsByTagName("body");
//Add initial block and update score board
AddRandom();
UpdateScore();
UpdateTopScore();
}
//animation loop
function animate() {
"use strict";
requestAnimationFrame(animate);
Update();
renderer.render(scene, camera);
}
//Block smooth move
function Update() {
for (var j = 0; j < 4; j++) {
for (var i = 0; i < 4; i++) {
if (grid[j][i] != null) {
grid[j][i].position.lerp(new THREE.Vector3(i, j, 0), 0.2);
grid[j][i].scale.lerp(FullBoxSize, 0.1);
}
}
}
}
//Keyboard Inputs
function inputKey(event) {
"use strict";
event = event || window.event;
//keep track if any change has been done
var change = 0;
if (event.keyCode == '37') {
//left arrow
change += HorizontalMerge();
change += MoveLeft();
if (change > 0) {
AddRandom();
}
} else if (event.keyCode == '38') {
//up arrow
change += VerticalMerge();
change += MoveUp()
if (change > 0) {
AddRandom();
}
} else if (event.keyCode == '39') {
//right arrow
change += HorizontalMerge();
change += MoveRight();
if (change > 0) {
AddRandom();
}
} else if (event.keyCode == '40') {
//down arrow
change += VerticalMerge();
change += MoveDown()
if (change > 0) {
AddRandom();
}
} else if (event.keyCode == '13 ') {
//Enter key
init();
}
UpdateScore();
if (score >= topScore) {
topScore = score;
UpdateTopScore();
}
}
function WindowResize(event) {
"use strict";
event = event || window.event;
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize(window.innerWidth, window.innerHeight);
}
//Add block after each move
function AddRandom() {
"use strict";
//Use simple array instead of Vector2
var location = [];
for (var j = 0; j < 4; j++) {
for (var i = 0; i < 4; i++) {
if (grid[j][i].name == "empty") {
location.push([i, j]);
}
}
}
if (location.length > 0) {
var random = location[Math.floor(Math.random() * location.length)];
scene.remove(grid[random[1]][random[0]]);
//grid[random[1]][random[0]] = new THREE.Mesh(geometry, material2048[0]);
//grid[random[1]][random[0]].name = "2";
grid[random[1]][random[0]] = Block2048[0].clone();
grid[random[1]][random[0]].position.x = random[0];
grid[random[1]][random[0]].position.y = random[1];
grid[random[1]][random[0]].scale.x = 0.1;
grid[random[1]][random[0]].scale.y = 0.1;
scene.add(grid[random[1]][random[0]]);
return 0;
}
return 1;
}
/*************************** Move Functions ********************************/
function MoveLeft() {
"use strict";
var moveCount = 0;
for (var j = 0; j < 4; j++) {
for (var i = 1; i < 4; i++) {
if (grid[j][i].name != "empty") {
for (var c = 0; c < i; c++) {
if (grid[j][c].name == "empty") {
Swap([j, i], [j, c]);
moveCount++;
}
}
}
}
}
return moveCount;
}
function MoveRight() {
"use strict";
var moveCount = 0;
for (var j = 3; j >= 0; j--) {
for (var i = 2; i >= 0; i--) {
if (grid[j][i].name != "empty") {
for (var c = 3; c > i; c--) {
if (grid[j][c].name == "empty") {
Swap([j, i], [j, c]);
moveCount++;
}
}
}
}
}
return moveCount;
}
function MoveDown() {
"use strict";
var moveCount = 0;
for (var i = 0; i < 4; i++) {
for (var j = 1; j < 4; j++) {
if (grid[j][i].name != "empty") {
for (var c = 0; c < j; c++) {
if (grid[c][i].name == "empty") {
Swap([j, i], [c, i]);
moveCount++;
}
}
}
}
}
return moveCount;
}
function MoveUp() {
"use strict";
var moveCount = 0;
for (var j = 3; j >= 0; j--) {
for (var i = 3; i >= 0; i--) {
if (grid[j][i].name != "empty") {
for (var c = 3; c > j; c--) {
if (grid[c][i].name == "empty") {
Swap([j, i], [c, i]);
moveCount++;
}
}
}
}
}
return moveCount;
}
/*************************** Merge Functions ********************************/
function HorizontalMerge() {
"use strict";
//this shouldn't go over 2 because we only get 2 merge per line
var mergeCount = 0;
for (var j = 0; j < 4; j++) {
for (var i = 0; i < 3; i++) {
if (grid[j][i].name != "empty") {
for (var z = i + 1; z < 4; z++) {
if (grid[j][z].name != "empty") {
if (grid[j][i].name == grid[j][z].name) {
mergeBlock([j, i], [j, z]);
mergeCount++;
}
break;
}
}
}
}
}
return mergeCount;
}
function VerticalMerge() {
"use strict";
//this shouldn't go over 2 because we only get 2 merge per line
var mergeCount = 0;
for (var i = 0; i < 4; i++) {
for (var j = 0; j < 3; j++) {
if (grid[j][i].name != "empty") {
for (var z = j + 1; z < 4; z++) {
if (grid[z][i].name != "empty") {
if (grid[j][i].name == grid[z][i].name) {
mergeBlock([j, i], [z, i]);
mergeCount++;
}
break;
}
}
}
}
}
return mergeCount;
}
function mergeBlock(a, b) {
//Save last position
var positionA = grid[a[0]][a[1]].position;
var positionB = grid[b[0]][b[1]].position;
//Remove from scene
scene.remove(grid[a[0]][a[1]]);
scene.remove(grid[b[0]][b[1]]);
if (grid[a[0]][a[1]].name == "2") {
grid[a[0]][a[1]] = Block2048[1].clone();
} else if (grid[a[0]][a[1]].name == "4") {
grid[a[0]][a[1]] = Block2048[2].clone();
} else if (grid[a[0]][a[1]].name == "8") {
grid[a[0]][a[1]] = Block2048[3].clone();
} else if (grid[a[0]][a[1]].name == "16") {
grid[a[0]][a[1]] = Block2048[4].clone();
} else if (grid[a[0]][a[1]].name == "32") {
grid[a[0]][a[1]] = Block2048[5].clone();
} else if (grid[a[0]][a[1]].name == "64") {
grid[a[0]][a[1]] = Block2048[6].clone();
} else if (grid[a[0]][a[1]].name == "128") {
grid[a[0]][a[1]] = Block2048[7].clone();
} else if (grid[a[0]][a[1]].name == "256") {
grid[a[0]][a[1]] = Block2048[8].clone();
} else if (grid[a[0]][a[1]].name == "512") {
grid[a[0]][a[1]] = Block2048[9].clone();
} else if (grid[a[0]][a[1]].name == "1024") {
grid[a[0]][a[1]] = Block2048[10].clone();
//player win
}
grid[b[0]][b[1]] = empty.clone();
//Scaledown Effect
grid[a[0]][a[1]].scale.x = 1.2;
grid[a[0]][a[1]].scale.y = 1.2;
//Re-assign positions
grid[a[0]][a[1]].position.add(positionA);
grid[b[0]][b[1]].position.add(positionB);
//Add to scene
scene.add(grid[a[0]][a[1]]);
//if (debug == true) {
// scene.add(grid[b[0]][b[1]]);
//}
}
/******************************* Score function *****************************/
function UpdateScore() {
"use strict";
score = 0;
//Add up current score
grid.forEach(function (array) {
array.forEach(function (box) {
if (box.name != "empty") {
score += parseInt(box.name);
}
});
});
//Update Score text
scoreTexture.clear('white');
scoreTexture.context.font = "30px monospace";
scoreTexture.drawText("Score:", 32, 52, 'black');
scoreTexture.drawText(score, 32, 90, 'black');
scoreTexture.texture.needsUpdate = true;
//Assign Color
scoreBox.material.color = ScoreColor(score);
}
function UpdateTopScore() {
//Set Top Score
//Moved into if statement of optimization
//topScore = score;
//Update Top Score text
topScoreTexture.clear('white');
topScoreTexture.context.font = "30px monospace";
topScoreTexture.drawText("Best Score:", 32, 52, 'black');
topScoreTexture.drawText(topScore, 32, 90, 'black');
topScoreTexture.texture.needsUpdate = true;
//Assign Color
topScoreBox.material.color = ScoreColor(topScore);
}
//Get color according to score
function ScoreColor(findscore) {
for (var i = 1; i < 12; i++) {
if (findscore < Math.pow(2, i)+1) {
return material2048[i-1].color;
}
}
}
/********************** Helper/debug functions ****************************/
function makeBlock(str) {
var block;
if (str == "full") {
block = new THREE.Mesh(wireGeometry, wireMaterial);
block.name = "empty";
return block;
}
}
function lerp(v0, v1, t) {
"use strict";
return (1 - t) * v0 + t * v1;
}
function Swap(a, b) {
var tmp = grid[a[0]][a[1]];
grid[a[0]][a[1]] = grid[b[0]][b[1]];
grid[b[0]][b[1]] = tmp;
}
function CheckGridName(x, y) {
return grid[y][x].name;
}
</script>
<script src="js/plugins.js"></script>
</body>
</html>