Ping Pong Game - OpenProcessing

sketch201571
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//Variaveis
float posicaoX_inicial=0;
float posicaoY_inicial=0;
int pontuacao = 0;
float pivox=40;
float pivoy=40;
float dx=random(1,2);
float dy=random(1,2);
Boolean descer=true;
float larg_rect=120;
​
void setup(){
  size(500,600);
  posicaoY_inicial=height-35;
  
}
void draw(){
      
    
    background(140);
    fill(255);
    text(pontuacao, 20,20);
    ellipse(pivox,pivoy,20,20);
    fill(0);
    rect(posicaoX_inicial, posicaoY_inicial, larg_rect, 30);
    
    //Detetando a colisao entre a bola e o rectangulo via posição..
    if((pivoy>posicaoY_inicial)&&(pivox>=posicaoX_inicial)&&(pivox<=posicaoX_inicial+larg_rect)){
       dy= -dy;
       pontuacao++;
    }else if(pivoy>height){
            pontuacao--;
            pivox=random(width);
            pivoy=0;
    }
​
    
    if(pivoy<0){
          
          dy= -dy;
          
  }
  if(pivox>width){
       dx= -dx;
    }
    
    if(pivox<0){
          
          dx= -dx;
          
  }
      pivoy=pivoy+dy;
      pivox=pivox+dx;
    
    
}
void keyPressed(){
if (keyCode == LEFT) {
    if (posicaoX_inicial==0){
        
    }
    else{
        posicaoX_inicial=posicaoX_inicial-5;
    //print(posicaoX_inicial);
    }
  }
 
  else if (keyCode == RIGHT) {
    if (posicaoX_inicial==450){
        
    }
    else{
        posicaoX_inicial=posicaoX_inicial+5 ;
    }
  }
​
}
​