var s = function(p) { let flock; var v1 = 0.0; var v2 = 0.0; var v3 = 0.0; var the_size = 5.0; let boid_pos = []; let boid_distance = []; //--------------- Setup --------------------- p.setup = function() { p.createCanvas(innerWidth, innerHeight); // カンマ区切りで入力したい値を追加できます。 flock = new Flock(); for (let i = 0; i < 1; i++) { let b = new Boid(p.width / 2, p.height / 2); flock.addBoid(b); } // window.max.bindInlet('set_value', function(_v1, _v2, _v3) { // v1 = _v1; // v2 = _v2; // v3 = _v3; // }); }; //--------------- Draw --------------------- p.draw = function() { p.background(1,120,159,80); flock.run(); //平均 let average = 0.0; let sum = 0.0; for(var i = 0; i< boid_distance.length; i++){ sum += boid_distance[i]; } average = sum / boid_distance.length; // 分散 let dispersion = 0.0; let cal_dispersion = []; for(var i = 0; i< boid_distance.length; i++){ cal_dispersion[i] = (average - boid_distance[i])*(average - boid_distance[i]); } let sum_despersion = 0.0; for(var j = 0; j < cal_dispersion.length; j++){ sum_despersion += cal_dispersion[j]; } dispersion = sum_despersion / cal_dispersion.length; p.fill(227,181,5); p.ellipse(boid_pos[0].x, boid_pos[0].y, 5.0,5.0); p.print(boid_distance); // カンマ区切りで出力したい値を追加できます。 // window.max.outlet('output', p.frameCount, boid_pos[0].x, boid_pos[0].y, average, dispersion); // }; // マウスを押した時に呼ばれる関数 p.mousePressed = function() { flock.addBoid(new Boid(p.mouseX, p.mouseY)); } function Flock() { this.boids = []; } Flock.prototype.run = function() { for (let i = 0; i < this.boids.length; i++) { this.boids[i].run(this.boids); } } Flock.prototype.addBoid = function(b) { this.boids.push(b); } function Boid(x, y) { this.acceleration = p.createVector(0, 0); this.velocity = p.createVector(p.random(-1, 1), p.random(-1, 1)); this.position = p.createVector(x, y); this.r = 5.0; this.eye = 0; this.maxspeed = 1; // Maximum speed this.maxforce = 0.01; // Maximum steering force } Boid.prototype.run = function(boids) { this.flock(boids); this.update(); this.borders(); p.fill(242); this.render(); } Boid.prototype.applyForce = function(force) { this.acceleration.add(force); } Boid.prototype.flock = function(boids) { let sep = this.separate(boids); // Separation let ali = this.align(boids); // Alignment let coh = this.cohesion(boids); // Cohesion // Arbitrarily weight these forces sep.mult(1.5); ali.mult(1.0); coh.mult(1.0); // Add the force vectors to acceleration this.applyForce(sep); this.applyForce(ali); this.applyForce(coh); } // Method to update location Boid.prototype.update = function() { // Update velocity this.velocity.add(this.acceleration); // Limit speed this.velocity.limit(this.maxspeed); this.position.add(this.velocity); // Reset accelertion to 0 each cycle this.acceleration.mult(0); } // A method that calculates and applies a steering force towards a target // STEER = DESIRED MINUS VELOCITY Boid.prototype.seek = function(target) { let desired = p5.Vector.sub(target,this.position); // A vector pointing from the location to the target // Normalize desired and scale to maximum speed desired.normalize(); desired.mult(this.maxspeed); // Steering = Desired minus Velocity let steer = p5.Vector.sub(desired,this.velocity); steer.limit(this.maxforce); // Limit to maximum steering force return steer; } Boid.prototype.render = function() { // Draw a triangle rotated in the direction of velocity let theta = this.velocity.heading() + p.radians(90); // fill(127); // stroke(200); p.push(); p.translate(this.position.x, this.position.y); p.rotate(theta); p.ellipse(0, 0, this.r, this.r); p.ellipse(0, this.r, this.r, this.r); p.ellipse(0, this.r*2, this.r, this.r); // ellipse(0,0,this.r*5,this.r*10); // // fill(255); // ellipse(0,0,this.r*0.3,this.r*3); // fill(242); // let eyes = abs(sin(this.eye*0.01)); // ellipse(-this.r*0.5,-this.r*3, this.r*0.3, this.r*0.5*eyes); // ellipse(this.r*0.5,-this.r*3, this.r*0.3, this.r*0.5*eyes); // this.eye += 1; p.pop(); } // Wraparound Boid.prototype.borders = function() { if (this.position.x < -this.r) this.position.x = p.width + this.r; if (this.position.y < -this.r) this.position.y = p.height + this.r; if (this.position.x > p.width + this.r) this.position.x = -this.r; if (this.position.y > p.height + this.r) this.position.y = -this.r; } // Separation // Method checks for nearby boids and steers away Boid.prototype.separate = function(boids) { let desiredseparation = 25.0; let steer = p.createVector(0, 0); let count = 0; // For every boid in the system, check if it's too close for (let i = 0; i < boids.length; i++) { let d = p5.Vector.dist(this.position,boids[i].position); // If the distance is greater than 0 and less than an arbitrary amount (0 when you are yourself) if ((d > 0) && (d < desiredseparation)) { // Calculate vector pointing away from neighbor let diff = p5.Vector.sub(this.position, boids[i].position); diff.normalize(); diff.div(d); // Weight by distance steer.add(diff); count++; // Keep track of how many } } // Average -- divide by how many if (count > 0) { steer.div(count); } // As long as the vector is greater than 0 if (steer.mag() > 0) { // Implement Reynolds: Steering = Desired - Velocity steer.normalize(); steer.mult(this.maxspeed); steer.sub(this.velocity); steer.limit(this.maxforce); } return steer; } // Alignment Boid.prototype.align = function(boids) { let neighbordist = 50; let sum = p.createVector(0,0); let count = 0; for (let i = 0; i < boids.length; i++) { let d = p5.Vector.dist(this.position,boids[i].position); if ((d > 0) && (d < neighbordist)) { sum.add(boids[i].velocity); count++; } } if (count > 0) { sum.div(count); sum.normalize(); sum.mult(this.maxspeed); let steer = p5.Vector.sub(sum, this.velocity); steer.limit(this.maxforce); return steer; } else { return p.createVector(0, 0); } } Boid.prototype.cohesion = function(boids) { let neighbordist = 50; let sum = p.createVector(0, 0); // Start with empty vector to accumulate all locations let count = 0; for (let i = 0; i < boids.length; i++) { boid_pos[i] = boids[i].position; let d = p5.Vector.dist(this.position,boids[i].position); boid_distance[i] = d; if ((d > 0) && (d < neighbordist)) { sum.add(boids[i].position); // Add location count++; } } if (count > 0) { sum.div(count); return this.seek(sum); // Steer towards the location } else { return p.createVector(0, 0); } } //--------------- ReSize--------------------- //画面サイズの自動調整 p.windowResized = function() { p.resizeCanvas(innerWidth, innerHeight); } }; const myp5 = new p5(s);

#群衆