<iframe width='500px' height='400px' src='https://nest.ktbyte.com/nest#358321' allowfullscreen></iframe>

// Global Variables
float pad1y = 300;
float pad1x = 75;
float padWidth = 25;
float padHeight = 125;
float pad2y = 300;
float pad2x = 725;

// these variables control motion
boolean pad1Up = false;
boolean pad1Down = false;
boolean pad2Up = false;
boolean pad2Down = false;

// these variables store the puck's x and y position
float puckX;
float puckY;

// these variables determine the speed of the puck's motion
float yvel = -3;
float xvel = -1;

void setup() {
    size(800, 600);
    rectMode(CENTER);
    // set puckX to half of the screen width
    puckX = width/2;
    // set puckY to half of the screen height
    puckY = height/2;
}

void draw() {
    background(0);
    fill(255, 255, 255);
    rect(pad1x, pad1y, padWidth, padHeight);
    rect(pad2x, pad2y, padWidth, padHeight);
    
    if(pad1Up == true) {
        pad1y -= 5;
    }
    
    if (pad1Down == true) {
        pad1y += 5;
    }
    
    if (pad2Up == true) {
        pad2y -= 5;
    }
    
    if (pad2Down == true) {
        pad2y += 5;
    }
    
    if (pad1y < padHeight/2) {
        pad1y = padHeight/2;
    }
    
    if (pad1y > height - (padHeight/2)) {
        pad1y = height - (padHeight/2);
    }
    
    if (pad2y < padHeight/2) {
        pad2y = padHeight/2;
    }
    
    if (pad2y > height - (padHeight/2)) {
        pad2y = height - (padHeight/2);
    }
    
    ellipse(puckX, puckY, 25, 25);
    puckX += xvel;
    puckY += yvel;
    
    if(puckY > (height - 25)){ 
        yvel = -yvel; 
    }    if(puckY < 25){ 
        yvel = -yvel; 
    } 
}

void keyPressed() {
    if (key == 'w') {
        pad1Up = true;
    }
    if (key == 's') {
        pad1Down = true;
    }
    if (keyCode == UP) {
        pad2Up = true;
    }
    if (keyCode == DOWN) {
        pad2Down = true;
    }
}

void keyReleased() {
    if (key == 'w') {
        pad1Up = false;
    }
    if (key == 's') {
        pad1Down = false;
    }
    if (keyCode == UP) {
        pad2Up = false;
    }
    if (keyCode == DOWN) {
        pad2Down = false;
    }
}