i want to make it possibel for the crab to hide behind another object, and make sure the lobster cant eat it when its hidding, i use the lookForCrab metod from the book. Any suggestion to how i can make the code???
vbh wrote ...
2013/5/6
code for little crab game
Your lobster always has to check whether there is a crab he can eat. If he finds one he eats it. But if you use a if condition in the eat method the crab'll be able to be protected by some objects.
Therefore you need to declare a method in your crab which checks whether the crab is protected at the moment:
//in your crab class;
public boolean isProtected() {
return getOneIntersectingObject(Protector.class) != null;
}
//instead of Protector you should use the classname of the object with which you want to crab to protected.//in the eat method of your lobster class;
public void eat(Class clss) {
Actor actor = getOneObjectAtOffset(0, 0, clss);
if(actor != null) {
if (actor instanceof Crab && !((Crab) actor).isProtected()) {
getWorld().removeObject(actor);
}
else {
getWorld().removeObject(actor);
}
}public void eat(Class clss)
{ Actor actor = getOneObjectAtOffset(0, 0, clss);
if(actor != null)
{ if (actor instanceof Crab && !((Crab) actor).isProtected())
{ getWorld().removeObject(actor);
} else
{ getWorld().removeObject(actor);
}
}
is actor the crab, the lobster or my hide object?
The variable actor can be every subclass of actor. So it could be all of them.
But when you check whether it is a Crab (actor instanceof Crab) you can be shure if this is true it is a crab. And if this crab is protected it doesn't get eaten.
Mouse = crab
Cat = lobster
Stamme = name of object to hide behind
i have wrote this code but now my cat dont eat the mouse at all ?
public void lookForMouse(Mouse mouse)
{
Actor Mouse = getOneObjectAtOffset(0,0, Mouse.class);
if(Mouse != null)
{
if(Mouse instanceof Mouse && !((Mouse)Mouse).isProtected())
{
getWorld().removeObject(Mouse);
}
else
{
getWorld().removeObject(Mouse);
}
}
}
If you just look for the mouse you can do it like this:
If this doesn't work probably your isProtected method is wrong.
In this case you should post it here so I can tell you what's wrong with it.
public void lookForMouse() {
Mouse mouse = (Mouse) getOneObjectAtOffset(0,0, Mouse.class);
if(mouse != null && !mouse.isProtected()) {
getWorld().removeObject(mouse);
}
}first mistake i didnt call the method in act
lookForMouse(Mouse mouse);
but when i do i get this message
')' expected
Probably you have forgot a breket in your method.
Could you post the code?
in cat (lobster class)
call in act: lookForMouse();
public void lookForMouse()
{
Mouse mouse = (Mouse) getOneObjectAtOffset(0,0, Mouse.class);
if(mouse != null && !mouse.isProtected())
{
getWorld().removeObject(mouse);
}
}
in mouse( crab klasse)
call in act: isProtected();
public boolean isProtected()
{
return getOneIntersectingObject(Stamme.class) != null;
}
its realy not working for me now lol it was the right code
stamme is the object to hide behind
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