diff options
| -rw-r--r-- | game.js | 58 |
1 files changed, 29 insertions, 29 deletions
@@ -1,15 +1,15 @@ "use strict"; -var boardRatio = 1.5; -var ballRadius = 0.01, padWidth = 0.01, padHeight = 0.15, padX = 0.01; -var padBaseSpeed = 0.8; +const boardRatio = 1.5; +const ballRadius = 0.01, padWidth = 0.01, padHeight = 0.15, padX = 0.01; +const padBaseSpeed = 0.8; -var gameId; -var cvs, ctx, cvsW, cvsH, bdW, bdH, bdltX, bdltY; -var socket; -var playing = false, flip = false; -var ballX, ballY, ballVX, ballVY; -var padPos, padVel, pad2Pos, pad2Vel; +let gameId; +let cvs, ctx, cvsW, cvsH, bdW, bdH, bdltX, bdltY; +let socket; +let playing = false, flip = false; +let ballX, ballY, ballVX, ballVY; +let padPos, padVel, pad2Pos, pad2Vel; function redraw() { ctx.fillStyle = "#000000"; @@ -60,7 +60,7 @@ function undrawElements() { } function resizeHandler() { - var rect = cvs.getBoundingClientRect(); + const rect = cvs.getBoundingClientRect(); cvsW = cvs.width = rect.width; cvsH = cvs.height = rect.height; // I believe this stuff is correct. @@ -172,7 +172,7 @@ function openGame() { socket.emit("open", gameId); } -var graphicsLoopId = null, loopPhysics = false; +let graphicsLoopId = null, loopPhysics = false; function startGraphicsLoop() { // undrawElements(); @@ -196,7 +196,7 @@ function startPhysicsLoop() { } const now = performance.now(); - var info = advancePhysics((now - prev) / 1e3); + const info = advancePhysics((now - prev) / 1e3); prev = now; if (info.bounce || info.otherBounce) { @@ -233,14 +233,14 @@ function initPhysics() { // Returns {bounce, otherBounce, ourSide : Bool} function advancePhysics(deltaT) { - var ret = {bounce: false, otherBounce: false, ourSide: false}; + const ret = {bounce: false, otherBounce: false, ourSide: false}; - var newballX = ballX + ballVX * deltaT; - var newballY = ballY + ballVY * deltaT; - var newpadPos = padPos + padVel * deltaT; - var newpad2Pos = pad2Pos + pad2Vel * deltaT; + let newballX = ballX + ballVX * deltaT; + let newballY = ballY + ballVY * deltaT; + const newpadPos = padPos + padVel * deltaT; + const newpad2Pos = pad2Pos + pad2Vel * deltaT; - var t; + let t; if (newballY <= ballRadius) { t = (ballRadius - ballY) / ballVY; } else if (newballY >= 1 - ballRadius) { @@ -282,15 +282,15 @@ function advancePhysics(deltaT) { return ret; } -var soundMap = {}; +const soundMap = {}; function preloadSounds() { - var names = ["bounce", "leave", "ready", "start", "join", "miss", "score"]; - var types = [["audio/ogg", "ogg"], ["audio/mpeg", "mp3"], ["audio/wav", "wav"]]; - for (var i = 0; i < names.length; i++) { - var audio = new Audio(); - for (var j = 0; j < types.length; j++) { - var source = document.createElement("source"); + const names = ["bounce", "leave", "ready", "start", "join", "miss", "score"]; + const types = [["audio/ogg", "ogg"], ["audio/mpeg", "mp3"], ["audio/wav", "wav"]]; + for (let i = 0; i < names.length; i++) { + const audio = new Audio(); + for (let j = 0; j < types.length; j++) { + const source = document.createElement("source"); source.type = types[j][0]; source.src = "/snd/" + names[i] + "." + types[j][1]; audio.appendChild(source); @@ -300,10 +300,10 @@ function preloadSounds() { } } -var lastSoundStampMap = {}; +const lastSoundStampMap = {}; function playSound(name) { - var now = performance.now(); + const now = performance.now(); console.log("playSound(\"" + name + "\")"); if (lastSoundStampMap[name] == null || now - lastSoundStampMap[name] >= 500) { soundMap[name].play(); @@ -312,7 +312,7 @@ function playSound(name) { } function setupBindings() { - var up = false, down = false; + let up = false, down = false; function padUpdate() { padVel = (down - up) * padBaseSpeed; @@ -347,7 +347,7 @@ window.addEventListener("load", function() { openGame(); }); -var resizeDebounceTimeout = null; +let resizeDebounceTimeout = null; window.addEventListener("resize", function() { if (resizeDebounceTimeout != null) return; resizeDebounceTimeout = setTimeout(function() { |