100 lines
2.0 KiB
JavaScript
100 lines
2.0 KiB
JavaScript
/* Global vars */
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var players = [];
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var walker = new Walker();
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var iteration = 0;
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var highestScore = 0;
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/** Setup the canvas */
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function setup(){
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var canvas = createCanvas(WIDTH, HEIGHT);
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canvas.parent('field');
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initNeat();
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// Do some initial mutation
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if(!USE_TRAINED_POP){
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for(var i = 0; i < 1; i++) neat.mutate();
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}
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startEvaluation();
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}
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function draw(){
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clear();
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squareGrid();
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// Check if evaluation is done
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if(iteration == ITERATIONS){
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endEvaluation();
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iteration = 0;
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}
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// Update and visualise players
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for(var i = players.length - 1; i >= 0; i--){
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var player = players[i];
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// Some players are eaten during the iteration
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player.update();
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player.show();
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}
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walker.update();
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walker.show();
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iteration++;
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}
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/** Draw a square grid with grey lines */
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function squareGrid(){
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stroke(204, 204, 204, 160);
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strokeWeight(1);
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fill(255);
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for(var x = 0; x < WIDTH/40; x++){
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line(x * 40, 0, x * 40, HEIGHT);
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}
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for(var y = 0; y < HEIGHT/40; y++){
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line(0, y * 40, WIDTH, y * 40);
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}
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noStroke();
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}
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/** Calculate distance between two points */
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function distance(x1, y1, x2, y2){
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var dx = x1 - x2;
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var dy = y1 - y2;
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return Math.sqrt(dx * dx + dy * dy);
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}
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/** Get a relative color between red and green */
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var activationColor = function(value, max){
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var power = 1 - Math.min(value/max, 1);
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var color = [255, 255, 0]
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if(power < 0.5){
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color[0] = 2 * power * 255;
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} else {
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color[1] = (1.0 - 2 * (power - 0.5)) * 255;
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}
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return color;
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}
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/** Get the angle from one point to another */
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function angleToPoint(x1, y1, x2, y2){
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d = distance(x1, y1, x2, y2);
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dx = (x2-x1) / d;
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dy = (y2-y1) / d;
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a = Math.acos(dx);
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a = dy < 0 ? 2 * Math.PI - a : a;
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return a;
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}
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/** Set the walker to a new location */
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function mouseClicked(){
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if(mouseX >= 0 && mouseX <= WIDTH && mouseY >= 0 && mouseY <= HEIGHT){
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walker.x = mouseX;
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walker.y = mouseY;
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}
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}
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