This site requires JavaScript, please enable it in your browser!
Greenfoot back
Twitter Twitter.hover
ninjapuffin
ninjapuffin wrote ...

2020/10/13

how do you make an object jump

ninjapuffin ninjapuffin

2020/10/13

#
I wonder how got make an object jump can someone help me and send the code in this discussion pls and thx
danpost danpost

2020/10/13

#
Will jump always land at the same ground level?
danpost danpost

2020/10/13

#
Normal jump basics include something like the following: 
// global
private int ySpeed;

// act
ySpeed++;
boolean onGround = false;
setLocation(getX(), getY()+ySpeed);
Actor actor = getOneIntersectingObject(Actor.class);
if ((actor instanceof Ground) || (actor instanceof Platform))
{
    int dir = (int)Math.signum(ySpeed);
    setLocation(getX(), actor.getY()-dir*(actor.getImage().getHeight()+getImage().getHeight())/2);
    ySpeed = 0;
    if (dir > 0) onGround = true;
}
if (onGround && Greenfoot.isKeyDown("up")) ySpeed = -15;
ninjapuffin ninjapuffin

2020/10/14

#
thanks
You need to login to post a reply.