// title: Ant scattering simulation.

​

​

let ants = [];

let velocityIncrease = 2; // Amount to increase ant velocity when clicked

let velocityDecreaseTimer = 0; // Timer to gradually slow down the ants

let slowdownDuration = 60 * 5; // Duration of slowdown in frames (3 seconds at 60 frames per second)

​

function setup() {

  createCanvas(800, 600);

  background(214,196,183);

​

  // Initialize a population of ants

  for (let i = 0; i < 200; i++) {

    let ant = new Ant(random(width), random(height));

    ants.push(ant);

  }

}

​

function draw() {

  for (let ant of ants) {

    ant.update();

    ant.display();

  }

  // Decrease velocity timer

  if (velocityDecreaseTimer > 0) {

    velocityDecreaseTimer--;

    if (velocityDecreaseTimer === 0) {

      // Reset ant velocities to their original values

      for (let ant of ants) {

        ant.resetVelocity();

      }

    }

  }

}

​

function mouseClicked() {

  // Increase the velocity of all ants when clicked

  for (let ant of ants) {

    ant.velocity.mult(velocityIncrease);

  }

  // Start the velocity decrease timer

  velocityDecreaseTimer = slowdownDuration;

}

​

class Ant {

  constructor(x, y) {

    this.position = createVector(x, y);

    this.originalVelocity = p5.Vector.random2D().mult(random(2, 4)); // Random initial velocity

    this.velocity = this.originalVelocity.copy(); // Store the current velocity

  }

​

  update() {

    // Update ant's position based on velocity

    this.position.add(this.velocity);

​

    // Wrap the ant around the screen

    this.position.x = (this.position.x + width) % width;

    this.position.y = (this.position.y + height) % height;

  }

​

  display() {

    // Draw the ant as a small circle

    fill(0);

    ellipse(this.position.x, this.position.y, 10, 10);

    line(

      this.position.x + 1,

      this.position.y + 1,

      this.position.x + 6,

      this.position.y + 6

    );

  }

  // Reset ant's velocity to the original value

  resetVelocity() {

    this.velocity = this.originalVelocity.copy();

  }

}

​