Conway's Game of Life implemented in HTML5 canvas.
See a full demo at http://www.pulgarin.co/canvaslife/, including over 1200 interesting patterns.
To start with, you need to include jQuery, and
canvaslife.js, like so:
<head> … <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <script src="http://jpulgarin.github.io/canvaslife/canvaslife.js"></script> … </head>
You also need a
<canvas> element which
canvaslife.js will use to display the grid of cells:
<body> … <canvas id="universe" width="900" height="500"> … </body>
Finally you need to initialize the Game of Life Universe and tell it which canvas element to use, like so:
You can populate the grid by click and dragging your mouse to revive/kill cells.
life.cellSize - The height/width (in pixels) of each cell.
life.onColour - The colour of living cells.
life.offColour - The colour of dead cells.
life.gridColour - The colour of the grid lines.
life.universe - A two dimensional array of booleans, representing the current alive/dead state of all cells in the universe. When making changes to this array ensure that
false so that your changes are not overridden by the next generation being calculated.
life.initUniverse(canvasSelector) - Initializes a Game of Life universe.
canvasSelector should be a jQuery selector that matches to the desired canvas element.
life.loadPattern(url) - Loads a Run Length Encoded format Game of Life pattern file into the universe from the specified
life.toggleLife() - Toggles whether the universe is in an envolving or static state.
life.isEvolving() - Returns
true if the universe is evolving and
false if it is static.
life.nextGen() - Evolve the universe one generation forward.
life.clear() - Kills all cells in the universe.
life.speed() - An integer representing the speed at which the universe is evolving.
0 is the slowest and
10 is the fastest.
life.changeSpeed(newSpeed) - Sets the new speed for the universe to evolve at.
life.paint() - Paints the current state of the universe.