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replace play checkbox with button, added description

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This commit is contained in:
andy 2021-06-22 16:45:07 +01:00
parent de8ef49de3
commit 07d2e0bb68
3 changed files with 86 additions and 76 deletions
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2
src/lib.rs
View File

@ -94,7 +94,7 @@ impl Universe {
impl Universe {
pub fn tick(&mut self) {
// log!("ticking");
let _timer = time::Timer::new("Universe::tick"); // will stop when dropped
// let _timer = time::Timer::new("Universe::tick"); // will stop when dropped
let mut next = self.cells.clone();
for row in 0..self.height {

26
www/index.html
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@ -30,19 +30,24 @@
<body>
<div class="card container-xs text-center p-4 m-3">
<div class="card-header">
<h1>Game of Life</h1>
<h1>Game of Life 🚀</h1>
</div>
<div class="card-body">
<div class="row p-1">
<div class="col-sm-12">
<p class="text-muted">An implementation of the standard <a href="https://en.wikipedia.org/wiki/Conway%27s_Game_of_Life">Conway Game of Life</a>. The game logic is written in WASM-targeted Rust with a light Js frontend. Read through the source code <a href="https://github.com/Sarsoo/game-of-life">here</a>. It was written following the guides in the <a href="https://rustwasm.github.io/docs/book">Rust & WebAssembly book</a>.</p>
</div>
</div>
<div class="row p-3">
<div class="col-sm-6">
<input type="range"
id="frameRate"
name="frameRate"
min="1" max="500" value="50"
min="1" max="500" value="100"
class="form-range">
<label for="frameRate"
id="frameRate-label"
class="form-label">Frame Interval: 50</label>
class="form-label">Frame Interval: 100ms</label>
</div>
<div class="col-sm-6">
<input type="range"
@ -52,7 +57,7 @@
class="form-range">
<label for="randThreshold"
id="randThreshold-label"
class="form-label">Rand Threshold: 50</label>
class="form-label">Random Threshold: 50%</label>
</div>
</div>
<div class="row p-3">
@ -75,18 +80,19 @@
</div>
<div class="row p-3 align-items-center">
<div class="col-sm-6">
<input type="checkbox"
<!-- <input type="checkbox"
id="play-check"
name="play-check"
class="form-check-input">
<label for="play-check">Play</label>
<label for="play-check">Play</label> -->
<button id="play" class="btn btn-success">Play</button>
</div>
<div class="col-sm-6">
<div class="row p-1">
<button id="step" class="btn btn-primary">Step</button>
<button id="step" class="btn btn-secondary">Step</button>
</div>
<div class="row p-1">
<button id="reset" class="btn btn-primary">Reset</button>
<button id="reset" class="btn btn-secondary">Reset</button>
</div>
</div>
</div>
@ -98,9 +104,7 @@
<script src="./bootstrap.js"></script>
<img src="https://storage.googleapis.com/sarsooxyzstatic/andy.png" class=" pb-2" style="width: 150px" />
<!-- <div id="fps"></div> -->
<a href="https://github.com/sarsoo"><img src="https://storage.googleapis.com/sarsooxyzstatic/andy.png" class=" pb-2" style="width: 150px" /></a>
</body>
</html>

134
www/index.js
View File

@ -15,6 +15,7 @@ const ALIVE_COLOR = "#FF55AA";
let universe = Universe.new(100, 100, randSlider.value, new Date().getTime() / 1000);
let width = universe.width();
let height = universe.height();
let play = false;
const canvas = document.getElementById("game-of-life-canvas");
canvas.height = (CELL_SIZE + 1) * height + 1;
@ -22,6 +23,9 @@ canvas.width = (CELL_SIZE + 1) * width + 1;
const ctx = canvas.getContext('2d');
/**
* Draw grid onto canvas prior to painting cells
*/
const drawGrid = () => {
ctx.beginPath();
ctx.strokeStyle = GRID_COLOR;
@ -41,10 +45,19 @@ const drawGrid = () => {
ctx.stroke();
};
/**
* Get linear index from row and column indices
* @param {*} row Row index
* @param {*} column Column index
* @returns Linear index
*/
const getIndex = (row, column) => {
return row * width + column;
};
/**
* Paint alive cells onto grid
*/
const drawCells = () => {
const cellsPtr = universe.cells();
const cells = new Uint8Array(memory.buffer, cellsPtr, width * height);
@ -71,6 +84,9 @@ const drawCells = () => {
ctx.stroke();
};
/**
* Single frame/step of game, tick universe, refresh UI
*/
const renderSingle = () => {
// fps.render(); //new
universe.tick();
@ -79,53 +95,62 @@ const renderSingle = () => {
drawCells();
}
/**
* Start interval timer to periodically iterate frames
*/
const start = () => {
if(loop != null) clearInterval(loop);
loop = setInterval(renderSingle, frameInterval);
}
/**
* Clear interval timer to stop animation loop
*/
const stop = () => {
if(loop != null) clearInterval(loop);
loop = null;
}
// const renderLoop = () => {
// if(PLAY){
// renderSingle();
// requestAnimationFrame(renderLoop);
// }
// };
// renderSingle();
// requestAnimationFrame(renderLoop);
var frameInterval = 50;
// var loop = setInterval(renderSingle, frameInterval);
var loop = null;
// SLIDERS
const frameSlider = document.getElementById("frameRate");
const frameSliderLabel = document.getElementById("frameRate-label");
/**
* Handler for frame interval slider change, stop, change interval, start
*/
const onFrameSlider = () => {
stop();
frameInterval = frameSlider.value;
frameSliderLabel.innerHTML = `Frame Interval: ${frameSlider.value}`;
frameSliderLabel.innerHTML = `Frame Interval: ${frameSlider.value}ms`;
if(playCheck.checked) start();
if(play) start();
}
frameSlider.onchange = onFrameSlider;
frameSlider.value = 100;
/**
* Handler for random threshold slider change, get a new universe with new threshold
*/
const onRandSlider = () => {
stop();
universe = Universe.new(width, height, randSlider.value, new Date().getTime() / 1000);
refreshCanvas();
randSliderLabel.innerHTML = `Rand Threshold: ${randSlider.value}`;
randSliderLabel.innerHTML = `Random Threshold: ${randSlider.value}%`;
if(playCheck.checked) start();
if(play) start();
}
randSlider.onchange = onRandSlider;
randSlider.value = 50;
/**
* Refresh existing canvas, calculate dimensions and draw
*/
const refreshCanvas = () => {
canvas.width = (CELL_SIZE + 1) * width + 1;
canvas.height = (CELL_SIZE + 1) * height + 1;
@ -133,7 +158,12 @@ const refreshCanvas = () => {
drawCells();
}
// INPUT BOXES
const widthBox = document.getElementById("width");
/**
* Handler for width input box change, get a new universe of given size
*/
const onWidth = () => {
// PLAY = false;
width = widthBox.value;
@ -145,6 +175,9 @@ const onWidth = () => {
widthBox.onchange = onWidth;
const heightBox = document.getElementById("height");
/**
* Handler for height input box change, get a new universe of given size
*/
const onHeight = () => {
// PLAY = false;
height = heightBox.value;
@ -155,26 +188,42 @@ const onHeight = () => {
}
heightBox.onchange = onHeight;
const playCheck = document.getElementById("play-check");
// BUTTONS
/**
* Click handler for step button, make single move
*/
const onPlay = () => {
console.log("play: " + playCheck.checked);
if(playCheck.checked) {
play = !play;
// console.log("play: " + play);
if(play) {
playButton.classList.remove("btn-success");
playButton.classList.add("btn-danger");
playButton.innerText = "Stop";
start();
}else {
playButton.classList.add("btn-success");
playButton.classList.remove("btn-danger");
playButton.innerText = "Play";
stop();
}
// PLAY = playCheck.checked;
// requestAnimationFrame(renderLoop);
}
playCheck.onchange = onPlay;
const playButton = document.getElementById("play");
playButton.onclick = onPlay;
/**
* Click handler for step button, make single move
*/
const onStep = () => {
console.log("stepping");
renderSingle();
}
document.getElementById("step").onclick = onStep;
/**
* Click handler for reset button, generate a new universe and refresh the canvas
*/
const onReset = () => {
universe = Universe.new(width, height, randSlider.value, new Date().getTime() / 1000);
refreshCanvas();
@ -183,46 +232,3 @@ document.getElementById("reset").onclick = onReset;
drawGrid();
drawCells();
const fps = new class {
constructor() {
this.fps = document.getElementById("fps");
this.frames = [];
this.lastFrameTimeStamp = performance.now();
}
render() {
// Convert the delta time since the last frame render into a measure
// of frames per second.
const now = performance.now();
const delta = now - this.lastFrameTimeStamp;
this.lastFrameTimeStamp = now;
const fps = 1 / delta * 1000;
// Save only the latest 100 timings.
this.frames.push(fps);
if (this.frames.length > 100) {
this.frames.shift();
}
// Find the max, min, and mean of our 100 latest timings.
let min = Infinity;
let max = -Infinity;
let sum = 0;
for (let i = 0; i < this.frames.length; i++) {
sum += this.frames[i];
min = Math.min(this.frames[i], min);
max = Math.max(this.frames[i], max);
}
let mean = sum / this.frames.length;
// Render the statistics.
this.fps.textContent = `
Frames per Second:
latest = ${Math.round(fps)} //
avg of last 100 = ${Math.round(mean)} //
min of last 100 = ${Math.round(min)} //
max of last 100 = ${Math.round(max)}
`.trim();
}
};