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The Final Frontier #2

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The Final Frontier #2

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1ec9c8a
Added space furniture
Mar 12, 2022
354a9d2
Make something to invade
Mar 12, 2022
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37 changes: 23 additions & 14 deletions app/index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -3,30 +3,34 @@
<head>
<meta charset="utf-8" />
<title>Ably Arcade</title>

<script charset="utf-8" type="text/javascript" src="//js.hsforms.net/forms/v2.js"></script>

<script
charset="utf-8"
type="text/javascript"
src="//js.hsforms.net/forms/v2.js"
></script>
<script src="./script.ts" type="module"></script>

<link rel="stylesheet" href="./style.css" />
<link rel="icon" type="image/png" href="assets/favicon.ico">
<link rel="stylesheet" href="./space.css" />
<link rel="icon" type="image/png" href="assets/favicon.ico" />
<meta name="viewport" content="width=device-width, initial-scale=1" />

</head>

<body>
<h1>Ably arcade</h1>
<header></header>

<section class="container">
<div id="login">
<div id="signup-form"></div>
</div>

<div id="arcade">
<div class="canvas-holder" id="game-root"></div>
<div id="spectatorControls" class="spectator-controls">
<button class="start" id="start">Start Game</button>
<p class="message" id="message">
3..2..1..GO!
</p>
<p class="message" id="message">3..2..1..GO!</p>
</div>
<div class="controls">
<button id="up" class="dpad" data-keycode="38">Up</button>
Expand All @@ -36,17 +40,21 @@ <h1>Ably arcade</h1>
</div>
</div>
</section>
<div id="spectate">Let me spectate</div>

<canvas id="final-frontier"></canvas>

<footer></footer>

<div id="spectate">Let me spectate</div>

<template id="scoreboard-template">
<section class="scoreboard">
<h2>High Scores</h2>
<table>
<tr>
<th>Name</th>
<th>Score</th>
</tr>
<tr>
<th>Name</th>
<th>Score</th>
</tr>
</table>
</section>
</template>
Expand All @@ -57,5 +65,6 @@ <h2>High Scores</h2>
</tr>
</template>

<script src="./space.js" type="module"></script>
</body>
</html>
37 changes: 37 additions & 0 deletions app/space.css
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Original file line number Diff line number Diff line change
@@ -0,0 +1,37 @@
header {
background-image: url("/assets/topgrid.png");
background-position: top left;
background-repeat: no-repeat;
background-size: cover;
z-index: 1;
left: 0;
right: 0;
top: 0;
height: 26vh;
position: fixed;
}

footer{
position: fixed;
background-image: url("/assets/bottomgrid.png");
background-position: bottom;
background-repeat: no-repeat;
background-size: cover;
z-index: 1;
bottom: 0;
left: 0;
right: 0;
height: 30vh;
}

#final-frontier {
position: fixed;
height: 100%;
width: 100%;
z-index: 0;
}

h1 {
position: relative;
z-index: 3;
}
82 changes: 82 additions & 0 deletions app/space.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,82 @@
const canvas = document.getElementById("final-frontier");
const c = canvas.getContext("2d");

let w, h, notNow;
let universe = celestialBodies(10000);

setCanvasExtents();
requestAnimationFrame(letThereBeLight);
window.onresize = setCanvasExtents;

function letThereBeLight(time) {
notNow = time;
requestAnimationFrame(pulse);
}

function pulse(time) {
const elapsed = time - notNow;
notNow = time;

hyperjump(elapsed);
clear();

const cx = w / 2;
const cy = h / 2;

universe.forEach((star) => {
const x = cx + star.x / (star.z * 0.001);
const y = cy + star.y / (star.z * 0.001);
const offScreen = x < 0 || x >= w || y < 0 || y >= h;

if (offScreen) return;

const distance = star.z / 1000.0;
const z = 1 - distance * distance;

createStar(x, y, z);
});

requestAnimationFrame(pulse);
}

function celestialBodies(count) {
const { random } = Math;
const { clientWidth, clientHeight } = document.body;
return [...Array(count)].map(() => ({
x: random() * clientWidth - clientWidth / 2,
y: random() * clientHeight - clientHeight / 2,
z: random() * 1000,
}));
}

function setCanvasExtents() {
const { clientWidth, clientHeight } = document.body;
w = clientWidth;
h = clientHeight;
canvas.width = clientWidth;
canvas.height = clientHeight;
}

function clear() {
c.fillStyle = "black";
c.fillRect(0, 0, canvas.width, canvas.height);
}

function createStar(x, y, z, px = 4) {
const intensity = 0.6;
const alpha = z * intensity;
const size = px * z;
c.fillStyle = `rgba(255,255,255,${alpha})`;
c.fillRect(x, y, size, size);
}

function hyperjump(epoc) {
const warpspeed = 0.03;
const velocity = epoc * warpspeed;

// update the star position on z axis
universe.forEach((s) => {
s.z -= velocity;
s.z += s.z <= 1 ? 1000 : 0;
});
}