My actor which is a cat, continuously goes up if you hold the space bar. How can I make it jump without it flying? Here's my code:
public class Cat extends Actor
{
private int speed = 5;
private int vSpeed = 0;
private int acceleration = 1;
private int jumpStrength = 5;
private boolean jumping;
public void act()
{
checkKeys();
checkFall();
}
public void checkFall()
{
if(onGround())
{
vSpeed = 0;
}
else {
fall();
}
}
private void checkKeys()
{
if(Greenfoot.isKeyDown("left"))
{
setImage("CatLeft.png");
moveLeft();
}
if(Greenfoot.isKeyDown("right"))
{
setImage("CatRight.png");
moveRight();
}
if(Greenfoot.isKeyDown("space"))
{
jump();
}
}
public void jump()
{
vSpeed = -jumpStrength;
fall();
}
public void moveRight()
{
setLocation ( getX() + speed, getY() );
}
public void moveLeft()
{
setLocation ( getX() - speed, getY() );
}
public void fall()
{
setLocation ( getX(),getY() + vSpeed);
if(vSpeed <=9)
{
vSpeed = vSpeed + acceleration;
}
jumping = true;
}
public boolean onGround()
{
Actor under = getOneObjectAtOffset (0, getImage().getHeight()/2, Platform.class);
return under != null;
}
}