I'm making a side-scrolling ninja turtle game and my actor keeps going through the platforms from the bottom but stays on it when it goes from the top.
How do I make the actor fall back down when it hits its head on the bottom of the platform? (First game by the way and I've got 6 hours left to finish it, please help)
The character (Mikey):
The platform(red bricks):
Background:
public class Mikey extends Actor
{
private int upSpeed = 0;
private int accelerataion = 1;
private int jumpDistance= -20;
private int collect = 0;
public Mikey()
{
GreenfootImage image = getImage();
image.scale(image.getWidth() - 440, image.getHeight() - 490);
setImage(image);
}
/**
* Act - do whatever the Mikey wants to do. This method is called whenever
* the 'Act' or 'Run' button gets pressed in the environment.
*/
public void act()
{
moveMikey();
checkFalling();
collect();
}
private void fall()
{
setLocation(getX(), getY() + upSpeed);
upSpeed = upSpeed + accelerataion;
}
public void moveMikey()
{
if(Greenfoot.isKeyDown("right"))
{
move(6);
}
if(Greenfoot.isKeyDown("left"))
{
move(-6);
}
if (Greenfoot.isKeyDown("space")&&(onPlatform()==true || onGround() == true))
{
upSpeed = jumpDistance;
fall();
}
}
boolean onPlatform()
{
Actor bottom = getOneObjectAtOffset(0, getImage().getHeight()/2, Platform.class);
return bottom != null;
}
boolean onGround()
{
Actor bottom = getOneObjectAtOffset(0, getImage().getHeight()/2, Ground.class);
return bottom != null;
}
public void checkFalling()
{
if (onPlatform()== false|| onGround() == true)
{
fall();
}
if (onPlatform() == true|| onGround() == true)
{
upSpeed = 0;
}
}
}public class Platform extends Actor
{
public Platform()
{
getImage().scale(getImage().getWidth()*2,getImage().getHeight()/4);
}
/**
* Act - do whatever the Floors wants to do. This method is called whenever
* the 'Act' or 'Run' button gets pressed in the environment.
*/
public void act()
{
move (-2);
if (getX() == 0)
{
setLocation(getWorld().getWidth() - 1, getY());
}
}
}public class Background extends World
{
/**
* Constructor for objects of class Background.
*
*/
public Background()
{
super(1080, 550, 1);
prepare();
}
private void prepare()
{
Building building = new Building();
addObject(building,1526,192);
building.setLocation(1009,280);
Platform platform = new Platform();
addObject(platform,830,120);
Platform platform2 = new Platform();
addObject(platform2,189,138);
Platform platform3 = new Platform();
addObject(platform3,534,302);
Platform platform4 = new Platform();
addObject(platform4,846,435);
Platform platform5 = new Platform();
addObject(platform5,213,462);
Platform platform6 = new Platform();
addObject(platform6,958,341);
platform3.setLocation(635,291);
platform4.setLocation(871,129);
platform5.setLocation(898,419);
platform2.setLocation(351,443);
platform.setLocation(413,120);
platform6.setLocation(140,233);
Mikey mikey = new Mikey();
addObject(mikey,315,297);
mikey.setLocation(58,423);
}
}
