This is my coding, can you tell me what I have done wrong because I can stand on the road but I can't stand on the Platform-
import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
/**
* Write a description of class CommandoPig here.
*
* @author (your name)
* @version (a version number or a date)
*/
public class CommandoPig extends Actor
{
private int speed = 4;
private int vSpeed = 0;
private int acceleration = 1;
private int jumpStrength = 7;
/**
* Check keyboard input and act accordingly
*/
public void act()
{
checkKeys();
checkFall();
}
private void checkKeys()
{
if (Greenfoot.isKeyDown("right"))
{
setImage("Commandopigtrans1.gif");
move(4);
}
if (Greenfoot.isKeyDown("left"))
{
setImage("Commandopigtrans0.gif");
move(-4);
}
if (Greenfoot.isKeyDown("up"))
{
setImage("Commandopigtrans2.gif");
jump();
Greenfoot.playSound("jump.wav");
}
}
public void jump()
{
vSpeed = -jumpStrength;
fall();
}
public void checkFall()
{
if(onRoad()) {
vSpeed = 0;
}
else {
fall();
}
}
public boolean onRoad()
{
Actor under = getOneObjectAtOffset ( 0, getImage().getHeight() / 2-8, Road.class);
return under !=null;
}
public boolean onPlatform()
{
Actor under = getOneObjectAtOffset ( 0, getImage().getHeight() / 2-8, Platform.class);
return under !=null;
}
public void fall()
{
setLocation ( getX(), getY() + vSpeed );
vSpeed = vSpeed + acceleration;
}
public void moveRight()
{
setLocation ( getX() - speed, getY() );
}
public void moveLeft()
{
setLocation ( getX() - speed, getY() );
}
}
