Setting up the rulesįirst we need to specify the rules of the game. So here’s a sample implementation in Racket, my favorite little Lisp. Without careful planning, that kind of abstraction could be very difficult. Students first were told to write an ordinary implementation following the rules above – then asked how they’d abstract their algorithm so they could replace the rules or even work on a non-rectangular grid. For example, here is Gosper’s Glider Gun, which produces “gliders” which wander off to infinity: 1 An animation of Gosper’s Glider Gun in action.įor our Statistical Computing course, Chris Genovese used the Game of Life as an example at the very beginning of the course to illustrate the flexible design of programs. Despite their simplicity, these rules can produce amazingly complicated behavior. We started with a certain set of cell states and then iterate, applying the rules to every cell at each iteration. A dead cell becomes alive if it has exactly three live neighbors.A live cell stays alive if it has two or three live neighbors.Thanks for your reading! If you find this post interesting, please share it with more people by recommending it.A flexible implementation of Conway's Game of Life A flexible implementation of Conway's Game of Life Alex ReinhartĬonway’s Game of Life is a simple simulation with surprisingly complex behavior. The full source code can be found on my GitHub. In order to make the game more fun, I also added a Random button and a Clear button to help with placing the cells. You may see some amazing animations! Gosper glide gun Conclusion Reload the browser, place some initial cells, then hit Run button. Create a file called Game.js under the src directory and type in the following code: import React from 'react' import './Game.css' const CELL_SIZE = 20 const WIDTH = 800 const HEIGHT = 600 class Game extends React.Component This component ac cep ts x, y as inputs so that the board can specify its position. In regard to the cells, we can use to draw each cell. Indeed we c an use CSS3 linear-gradient for the grid. How about the grid? It’s not feasible to draw the grids with s, and since the grid is static, it is also unnecessary. The board can be a component and can be rendered with a single. ![]() (You can take a look at PIXI or Phaser if you are interested in using canvas.) First of all, React is not a graphic framework, so we won’t think about using canvas. Looks pretty simple, huh? Let’s think about how to do this in React. The “Run” button will start the iterations at a given interval. It is simply a board with a grid, and some white tiles (“cells”) which can be placed or removed by clicking the grid. The final screen we want to make looks like this: Conway’s Game of Life This will start a dev server at and a browser window will be opened at this address. Now all we need to do is start it: $ cd react-gameoflife$ npm start ![]() The amazing create-react-app tool is very handy for starting a new React project: $ npm install -g create-react-app$ create-react-app react-gameoflifeĪfter less than one minute, react-gameoflife will be ready. Let’s start! React setupįirst we need to setup React. Since it does not involve too many graphics - just a grid and some blocks - I decided React would be a good choice, and it can be used as a quick tutorial for React. At each turn, they follow some simple rules to decide whether a life is alive or dead.Įver since its publication, Conway's Game of Life has attracted much interest, because of the surprising ways in which…en. Imagine some kind of life form living in a world. When I started to learn programming as a child, I learned a game called “ Game of Life.” It is a great example of cellular automation and how simple rules can result in complex patterns. It looked pretty interesting to do this type of quick coding, so I decided to do one by myself. Recently I watched the famous video that creates a snake game in less than 5 minutes (on Youtube). By Charlee Li How to code the “Game of Life” with React in under an hour
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