We'll also declare a sleepIteration const so we can easily change how long each iteration should be displayed (this will be useful when debugging. While we are defining constants, let's go ahead and declare a few more like the Unicode characters to represent dead vs living cells (I'll be using brown and green squares but feel free to use whatever you want), as well as an ANSI escape sequence to clear our screen each iteration (we want the appearance of animation). You could make these whatever you want, just be aware that it might look strange depending on the size of your terminal. Let's import the packages we need and define some constants for the dimensions of the grid. I will also make use of some unicode characters to make the display of our game a little more visually appealing.įirst we need to make our grid. As far as packages go, we will need fmt to print our array, math/rand to generate our initial grid, and time so we can observe each iteration of the game. Because a cell can only be in one of two states (no quantum funny business here), we will use booleans as the type in our array of arrays. Conways Game of Life is a cellular automaton, a mathematical game that simulates the evolution of cells on a grid. A dead cell with exactly 3 neighbors comes to life.Īny other cell will die or stay dead (if it has more than 3 neighbors or less than 2 neighbors).įor a 2 dimensional grid we will need an array of arrays to represent each row of cells.If I run it in a Debug configuration from Visual Studio 2017 it seems to. Adding multi-threading definitely made it run faster (at least on this 4-core machine) but I noticed it has issues. A living cell with 2-3 neighbors will continue to live. For practice I've implemented Conways' Game of Life in C++ with updates to the 'world' being handled with parallel processing.With each iteration of the game, cells live and die based on the rules of the game. In the Game of Life, we can define the speed of light (c, just as in physics) as. Cells on this grid are either dead or alive. there can exist initial Life patterns that grow infinitely. Here's a cool website where you can experiment with the game and watch what happens: Conway's Game of Life. Based on only a few simple rules, we can create a visualization of this simulation and watch it to our heart's content. This results in accessing out of bound data, and undefined behavior. In function newgen youre checking neighboring cells, all eight of them, even if cell is on the edge of the matrix. Inner loops counter j should be initialized in inner loop, not in outer. Have you heard of Conway's Game of Life? It is a 0 player simulation that is absolutely fascinating to watch. In functions init and copy theres a double loop.
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