Simple Agario Game

float x, y;

float V;

float Vx, Vy;

float Real;

float R;

float ballR;

float ballx;

float bally;

float Dxball;

float Dyball;

String First = "Slower? :P";//50

String Second = "I want to live :(";//100

String Third = "Seriously Stop!!";//300

String Last = "Game Over";//600

String AfterLast = "because winning is from connection, not size";//600

​

void setup(){

  size(800, 600);

  noStroke();

  x = width/2;

  y = height/2;

  Real = 10;

  ballx = random(0, width); // (ballx, bally) is the random position of the green ball

  bally = random(0, height);

  ballR = random(7, R); // ballR is the radius of the green ball being between 7 pixels and the size of the red ball

}

void draw(){

  /* -------------------------|  Defining Variables  |------------------------- */

  V = 50/Real + 1; // V is the speed of the red ball in respect to its "Real" size

  float Dx = mouseX - x; // Dx and Dy are the distance from the mouse to the position of the red ball

  float Dy = mouseY - y;

  float D = sqrt(sq(Dx)+sq(Dy)); // Using pythagoras, D is the exact distance between the mouse pointer and the red ball

  Vx = (V/D)*Dx; // because our canvas works in the rectangular coordinates (x, y), we are defining the speed on each x and y separately

  Vy = (V/D)*Dy; // Vx, Vy are the x and y speed of the red ball, defined by the total speed "V" and D/Dx and D/Dy (which combined are the normalized vector)

  float Dxball = ballx - x; // (Dxball, Dyball) is the (x, y) distance between the two balls

  float Dyball = bally - y;

  float ballD = sqrt(sq(Dxball)+sq(Dyball)); // using pythagoras, ballD is the total distance

  /* -----------------| Displaying the objects on the screen |----------------- */

  background(255);

  fill(200, 0, 0);

  ellipse(x, y, 2*R, 2*R); // the red ball

  fill(0, 150, 100);

  ellipse(ballx, bally, 2*ballR, 2*ballR); // the green ball

  /* --------------------------| Creating the logic |-------------------------- */

  x+=Vx;

  y+=Vy;

  if(ballD < abs(R) - abs(ballR)){ // if red eats green

    Real = sqrt(sq(R)+sq(ballR)); // pythagoras is also used on finding the combined area using the radius

    ballx = random(0, width); // spawning the green ball in a random position

    bally = random(0, height);

    ballR = random(9, R);

  }

  if(R < Real){ // this allows the effect of seeing the red ball being incremented 

    R+= 2.5;

  }

  /* -----------------| Displaying the text messages on the screen |----------------- */

  fill(0);

  textAlign(CORNER);

  textSize(16);

  text("Your Size: " + R, 10, 20);

  fill(255);

  textAlign(CENTER);

  if(R < 50){

    textSize(ballR);

    text("._.", ballx, bally);

  }

  else if(R < 100){

    textSize(ballR/3);

    text(First, ballx, bally);

  }

  else if(R < 200){

    textSize(ballR/4);

    text(Second, ballx, bally);

  }else if(R < 400){

    textSize(ballR/4);

    text(Third, ballx, bally);

  }else if(R < 700){

    textSize(ballR/5);

    text("Bruh!!!", ballx, bally);

  }else {

    fill(0);

    background(200);

    textSize(70);

    text(Last, width/2, height/2);

    textSize(30);

    text(AfterLast, width/2, height - 10);

  }

}

void keyPressed(){

  if(key == 'r'){

    restart();

  }

}

void restart(){

  x = width/2;

  y = height/2;

  Real = 10;

  R = Real;

  ballx = random(0, width);

  bally = random(0, height);

  ballR = random(3, R);

}