I am trying to write a pong type game. I am in my first csc class and have to write a simple game for our final assignment. I can't get the ball to bounce off the paddle. Please help. Here is my code.

 

boolean ballpaddle=false;
float x=50;
float y=50;
int speed=5;
float speedx=1;
float speedy=2;
int a=200;
int b=height+10;
int c=200;
int d=height+390;

void setup(){
  size(400,400);
}

void draw(){
  background(255,102,255);
  ball();
  moveball();
  bounceball();
  paddle();
  movepaddle();
  ballpaddle1();
}

void ball(){
  fill(153,51,255);
  stroke(153,51,255);
  ellipse(x,y,16,16);
  smooth();
}

void moveball(){
  x=x+speedx;
  y=y+speedy;
  if (y>height){
    println("Game Over!");
    noLoop();
  }
  if(){
    speedx=-speedx;
    speedy=-speedy;
    ballpaddle=true;
  }
}

void bounceball(){
  if((x>width-8)||(x<8||(y<8))){
    speedx=-speedx;
    speedy=-speedy;
  }
}

void paddle(){
  fill(0,204,255);
  stroke(0,204,255);
  rect(c,d,40,10);
  rectMode(CENTER);
}

void movepaddle(){
  if (keyPressed){
    if(key=='a'||key=='A'){
      c=c-speed;
    } else if((key=='d'||key=='D')){
      c=c+speed;
    }
  }
  if ((c<20)){
    c=c+speed;
  }else if((c>width-20)){
    c=c-speed;
  }
}

void ballpaddle1(){
  if (ballpaddle=true){
    speedx=-speedx;
    speedy=-speedy;
  }
}

 

Thank you!!!