我的球移动不平稳，但结结巴巴。如何使运动更流畅？

Question

因此，这是我正在处理的项目https://www.openprocessing.org/sketch/672559确实可以正常工作，但是当速度加快时，球和桨实际上并不会非常平滑。 （您必须按下按钮才能在此页面上显示代码）

几次弹跳后，球变得有点抖动，我想知道如何避免这种情况或使整个运动更加顺畅。

这是没有颜色的球的代码。

   //ball variables
PVector ballVelocity = new PVector(0, 0); //velocity of ball
PVector ballPosition = new PVector(initial.x/2, initial.y/2); //position of ball

int maxPositions = 10; //the x positions
float radius = 10; //radius of ball

colour currentCol = new colour(255, 255, 255);

void placeBall() {
  ballBeforePosition = new PVector(ballPosition.x, ballPosition.y);
  ballPosition = new PVector(initial.x/2, initial.y/2);
  ballPosition.x *= scalar.x;
  ballPosition.y *= scalar.y;
  ballVelocity.y = (float)(Math.random()*(10*scalar.y))-(4*scalar.y);
  while (abs(ballVelocity.y)<1) ballVelocity.y = (float)(Math.random()*(10*scalar.y))-5;

  if (!leftScored && rightScored) {
    ballVelocity.x = 5 * scalar.x;
  } else if (leftScored && !rightScored) {
    ballVelocity.x = -5 * scalar.x;
  } else {
    if ((int)(Math.random()*2)==1) {
      ballVelocity.x = 5 * scalar.x;
    } else {
      ballVelocity.x = -5 * scalar.x;
    }
  }
}

void accelerateBall(float acceleration) {
  PVector newVelo = new PVector(ballVelocity.x * acceleration, ballVelocity.y * acceleration); //velocity of ball
  ballVelocity = new PVector(newVelo.x, newVelo.y);
  if (abs(ballVelocity.x)>(player1.dim().x+maxEndSpeed)) {
    ballVelocity.x = sign(ballVelocity.x)*(player1.dim().x+maxEndSpeed);
    return;
  }
}


void decelerateBall(float deceleration){
  PVector newVelo = new PVector(ballVelocity.x / deceleration, ballVelocity.y / deceleration); //velocity of ball
  ballVelocity = new PVector(newVelo.x, newVelo.y);
  if (abs(ballVelocity.x)< 5 * scalar.x) {
    ballVelocity.x = sign(ballVelocity.x)*(5 * scalar.x);
    return;
  }
}
void runBallCollision(PVector pot, paddle p) {
  if (collides(pot, p)) {
    hitcount++;
    firstcollision++;

    if (firstcollision ==3) {
      accelerateBall(1.5);
    }

    if ((p==player1&&pot.x > p.pos().x)||(p==player2&&pot.x < p.pos().x)) {
      PVector tempVel = new PVector(ballPosition.x - p.pos().x, (ballPosition.y - p.pos().y)/5);
      tempVel.normalize();
      tempVel.mult(ballVelocity.mag());
      ballVelocity = tempVel;
    } else if (!sameSign(p.moveAmount(), ballVelocity.y)&&p.moveAmount()!=0) {
      //p.speedBurst();
      ballVelocity.x *= -1;
      ballVelocity.y = abs(ballVelocity.y)*sign(p.moveAmount())+(p.moveAmount());
      if (p==player1) {
        ballPosition.x = p.pos().x + (p.dim().x) + radius;
      }
      if (p==player2) {
        ballPosition.x = p.pos().x - (p.dim().x) - radius;
      }
    }

    if (firstcollision<3 || firstcollision > 3 ) {
      accelerateBall(1.05);
    }

    projected = false;
  }
}

void moveBall() {
  PVector potPos = PVector.add(ballPosition, ballVelocity);

  runBallCollision(potPos, player1);
  runBallCollision(potPos, player2);

  if (potPos.y - radius <= 0+cornerwidth) {
    ballVelocity.y *= -1;
  } else if (potPos.y + radius >= height-cornerwidth) {
    ballVelocity.y *= -1;
  }

  ballPosition.add(ballVelocity);


  //GOAL
  if (ballPosition.x<0+cornerwidth) {
    rightScored = true;
    leftScored = false;
    reset(player2, true);
  } else if (ballPosition.x>width-cornerwidth) {
    rightScored = false;
    leftScored = true;
    reset(player1, true);
  }
}

void displayBall() {
  pushMatrix();
  PVector newPosi = ballBeforePosition;
  translate(ballPosition.x, ballPosition.y);
  fill(currentCol.R(), currentCol.G(), currentCol.B());
  noStroke();
  rect(0, 0, radius*2, radius*2);
  popMatrix();
}