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Nils 762

2D Java game-deleting NPC's from an array

3 posts in this topic

I'm currently working on a 2D java game. I'm saving each active NPC(each NPC has a class file, extedning an abstract NPC class) from the game in a list(array) and itterating it to display the NPC using one of it's methods. The problem that I've run into is that I can't find a way to delete the NPC from the list when it's HP level is <= 0. I'm sure there is probably a really simple way to do this that someone more experienced would be aware of.  

 

PS. This is my first 2D game XD

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When you say list( array ) - do you mean a list or an array?

 

If you are using lists - you should probably read up on them a bit, they are simple to understand and will only take a 10 minute read.

It would be a case of something like  'currentNPC.remove()' or something similar ( I dont use Java )

Check out - http://docs.oracle.com/javase/7/docs/api/java/util/List.html

 

If its an array, and you are doing something like NPC[10] and iterating through them, just move your dead enemy to the last array position, move all the rest up - and reduce the count in the update to something similar to 

int NPC_AMMOUNT = 10;

...

Enemy Dies - Reorder array

NPC_AMMOUNT--;

...

for( int i = 0; i < NPC_AMMOUNT; i++ ) {
    ... do rendering
} 

Maybe if your new to programming, you should try out the beginners boards :)

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