#Im not sure why this is null

1 messages · Page 1 of 1 (latest)

mighty bay
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Im new to coding and i have an assignment where im trying to create a projectile attached to an enemy for them to use against you. in order to figure out which face the projectile is facing and for collision detection i've tried making an actor variable for the class to use. It's worked for all of my other classes so for, but im not sure why this one specific class returns the actor as null

trail juncoBOT
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<@&987246399047479336> please have a look, thanks.

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TJ-Bot
Im new to coding and i have an assignment where im trying to create a projectile attached to an enemy for them to use against you. in order to figure out which face the projectile is facing and for collision detection i've tried making an actor variable fo

This issue is likely due to a null pointer exception, which occurs when you try to access a method or property of an object that is currently set to null. To fix this, you need to ensure that the object you are trying to access is properly initialized before using it in your code.

One common way to prevent null pointer exceptions is by performing null checks before accessing properties or methods of an object. You can use conditional statements like if-else to check if the object is null before proceeding with the operation.

In your case, make sure that the projectile and enemy objects are properly instantiated and assigned before trying to attach the projectile to the enemy. Double-check your code for any instances where you may be trying to access properties or methods of uninitialized objects.

Additionally, it's good practice to handle potential null values gracefully in your code by implementing error handling mechanisms such as try-catch blocks or using optional types like Java's Optional class.

By ensuring that your objects are properly initialized and implementing proper error handling, you can prevent null pointer exceptions and ensure smooth execution of your code.

mighty bay
trail juncoBOT
mighty bay
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for clarification im trying to get the class to find the hero object

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im sorry for the poor use of language im not too familiar with coding terms

snow token
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Why not show World.java.
this (Hero) getWorld().getObjects(Hero.class).get(0); seems like the worst way to conjure anything.

mighty bay
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I'm not sure what that means

mighty bay
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wait no im sorry theres nothing wrong with the code i was just reading an error that happened 2 hours ago from the compile log