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Patdumas77
Patdumas77 wrote ...

2020/12/12

getWorld and getObject

Patdumas77 Patdumas77

2020/12/12

#
Im trying to figure out how to use getWorld and getObject, to reference from one class to another. I dont know if they are supposed to placed in a particular place to be used such as in act method or before act method. Please give an example to reference a class using these two api.
19598 19598

2020/12/18

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getWorld() must be called from the actor class, and returns a World object. You can use it to do things like getWorld().getBackground() or getWorld().stop(). The getObjects return an Actor object, so you could do something like getWorld().getObjects() to get a List of Actor objects, and then do get() on the object you want from that list. It would look something like this: getWorld().getObjects().get(0).
danpost danpost

2021/1/6

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19598 wrote...
getWorld().stop()
stop is not a method in the World class and cannot be called on a World object.
The getObjects return an Actor object
It returns a java.util.List object (as you noted in your next sentence).
so you could do something like getWorld().getObjects() to get a List of Actor objects, and then do get() on the object you want from that list. It would look something like this: getWorld().getObjects().get(0).
The List object must not be empty when using get on it; and the int index of get ( get(int) ) must be less than the length of the list. That is, the size of the list, in most cases, should be checked before calling get on it.
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