anuraghazra

<canvas id="canvas"></canvas>

anuraghazra

// Calling a variable inside of a function
// like a global variable but without polluting the global scope.
// main function
function setup() {
  console.log(ADD);
  console.log(SUB);
  console.log(sum(100,50))
}

// init the variables in another function (you can hide the function in an external js file)

anuraghazra

Markdown License badges

Collection of License badges for your Project's README file.
This list includes the most common open source and open data licenses.
Easily copy and paste the code under the badges into your Markdown files.

Notes

• Badges are made with Shields.io.
• This badges do not fully replace the license informations for your projects, they are only emblems for the README, that the user can see the License at first glance.  
• 🇫🇷 Cette liste en français
• 🇨🇳🇹🇼 这个中文名单

anuraghazra

// Happy Holi 2019
// BY ANURAG HAZRA

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anuraghazra

Handy Trick To Get Rid Of node_modules

This one is a simple and handy trick when you want to copy your directories without node_modules folder.

Enter this command in your terminal.

robocopy SOURCE DEST /mir /xd node_modules

anuraghazra

class Dot {
  
  constructor(x, y) {
    this.pos = new Vector(x, y);
    this.oldpos = new Vector(x, y);
    
    this.friction = 0.97;
    this.groundFriction = 0.7;
    
    this.gravity = new Vector(0, 1);

anuraghazra

update() {
    let vel = Vector.sub(this.pos, this.oldpos);
    vel.mult(this.friction);
    
    // if the point touches the ground set groundFriction
    if (this.pos.y >= CANVAS_HEIGHT - this.radius && vel.magSq() > 0.000001) {
      var m = vel.mag();
      vel.x /= m;
      vel.y /= m;
      vel.mult(m * this.groundFriction);

anuraghazra

render() {
  ctx.beginPath();
  ctx.fillStyle = this.color;
  ctx.arc(this.pos.x, this.pos.y, this.radius, 0, Math.PI * 2);
  ctx.fill();
  ctx.closePath();
}

anuraghazra

constrain() {
  if (this.pos.x > CANVAS_WIDTH - this.radius) {
    this.pos.x = CANVAS_WIDTH - this.radius;
  }
  if (this.pos.x < this.radius) {
    this.pos.x = this.radius;
  }
  if (this.pos.y > CANVAS_HEIGHT - this.radius) {
    this.pos.y = CANVAS_HEIGHT - this.radius;
  }

anuraghazra

 constrain() {
  if (this.pos.x > CANVAS_WIDTH - this.radius) {
    this.pos.x = CANVAS_WIDTH - this.radius;
  }
  if (this.pos.x < this.radius) {
    this.pos.x = this.radius;
  }
  if (this.pos.y > CANVAS_HEIGHT - this.radius) {
    this.pos.y = CANVAS_HEIGHT - this.radius;
  }