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  [LWJGL] Handling two quad drawings inside one method  (Read 1029 times)
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Offline Navx

Junior Newbie

« Posted 2013-07-04 02:49:50 »

Hi, I'm having a weird issue that doesn't make sense to me. I have a Player class which has a draw method which draws a quad. I also have a healthBar object which also has a draw method that will draw another quad. Here's the structure this works under. Main() > Player.draw() > healthBar.draw().

Here's the Player class

Here's the healthbar class (the healthbar does create another square instead of a rectangle for testing)

When I create an instance of the healthbar and player in the main class, I can use Player.draw() and healthbar.draw(), it works fine. I'm just curious why I can't create this from within the Player class and call Player.draw() inside the main class to handle drawing both the player quad and healthbar quad. Is there something that prevents me from doing this? Thank you for your assistance.
Offline davedes
« Reply #1 - Posted 2013-07-04 03:40:39 »

hbar is null depending on the constructor, and will throw a NPE.

Also you should use UpperCase for class names. lowerCase (i.e. camelCase) is used for method and variable names. ALL_CAPS style is used for constants (final variables).

Offline Navx

Junior Newbie

« Reply #2 - Posted 2013-07-04 04:12:18 »

Ahhhhhh, it was a stupid mistake then. I created the instance inside the no argument constructor, but I was using another. Okay, thanks for the input about format too.
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