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cacatoo

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Building, exploring, and sharing spatially structured models

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<!-- ########################################################################################### Example (empty) project ########################################################################################### --> <html> <script src="../../dist/cacatoo.js"></script> <!-- Include cacatoo library (compiled with rollup) --> <script src="../../lib/all.js"></script> <!-- Include other libraries (concattenated in 1 file) --> <link rel="stylesheet" href="../../style/cacatoo.css"> <!-- Set style sheet --> <head> <title>Cacatoo</title> </head> <script> /*-----------------------Start user-defined code ---------------------*/ let sim; // Declare a variable named "sim" globally, so that we can access our cacatoo-simulation from wherever we need. /** * function cacatoo() contains all the user-defined parts of a cacatoo-model. Configuration, update rules, what is displayed or plotted, etc. It's all here. */ function cacatoo() { /* 1. SETUP. First, set up a configuration-object. Here we define how large the grid is, how long will it run, what colours will the critters be, etc. */ let config = { title: "Empty project", // The name of your cacatoo-simulation description: "", // And a description if you wish maxtime: 1000000, // How many time steps the model continues to run ncol: 60, // Number of columns (width of your grid) nrow: 60, // Number of rows (height of your grid) wrap: [true, true], // Wrapped boundary conditions? [COLS, ROWS] scale: 5, // Scale of the grid (nxn pixels per grid point) statecolours: { 'state': { 1: 'white' } }, // Colours for each state. Background (0) defaults to black. } /* 1. SETUP. (continued) Now, let's use that configuration-object to generate a new Cacatoo simulation */ sim = new Simulation(config) // Initialise the Cacatoo simulation sim.makeGridmodel("model") // Build a new Gridmodel within the simulation called "model" sim.initialGrid(sim.model, 'state', 1, 0.5) // Set half (50%) of the Gridmodel's grid points to 1 (alive) sim.createDisplay("model", "state", "") // Create a display so we can see our newly made gridmodel /* 2. DEFINING THE RULES. Below, the user defines the nextState function. This function will be applied for each grid point when we will update the grid later. */ sim.model.nextState = function (x, y) { // Empty } /* 3. MAIN SIMULATION LOOP. Finally, we need to set the update-function, which is the mainwill be applied to the whole grid each time step. For now, all we will do is call "synchronous", which applies the next-state function shown above to each grid point. All cells are updated at the same time, rather than in turn (for this, use the function "asynchonous") */ sim.model.update = function () { this.synchronous() // Applied as many times as it can in 1/60th of a second } /* OPTIONAL: Now that we have everything setup, we can also add some interactive elements (buttons or sliders). See cheater.html for more examples of this. */ sim.start() } /*-------------------------End user-defined code ---------------------*/ </script> <body onload="cacatoo()"> <div class="header" id="header"> <h2>Cacatoo (example project)</h2> </div> <div class="content" id="canvas_holder"> </div> <div class="content" id="graph_holder"> </div> <div class="content" id="form_holder"></div> <div class="content" id="examples"> This is an empty project.<br> Start from here if you want to build your own Cacatoo models. <br>For inspiration, take a look at <a href="index.html">these examples</a>. </div> <div class="footer" id="footer"></div> </div> </body> </html>