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Gorgro
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PostPosted: Mon Dec 20, 2010 11:35 pm 
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Posts: 4
I keep getting a nullPointerException on line 7 of this code ( uFont.loadGlyphs() )
Code:
try{
      Font font=new Font( "Verdana", Font.PLAIN, 40 );
      UnicodeFont uFont = new UnicodeFont(font, 40, false, false);
      uFont.addAsciiGlyphs();
      uFont.getEffects().add(new ColorEffect(java.awt.Color.WHITE));
      uFont.loadGlyphs();
      uFont.drawString(100, 100, "generic test message");
   }catch(SlickException e){
      e.printStackTrace();
   }


could anyone point me in the direction of my mistake? Because for the life of me, I cannot find it.
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kevglass
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PostPosted: Tue Dec 21, 2010 10:38 am 
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Posts: 3143
Post the exception?

Kev
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Gorgro
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PostPosted: Tue Dec 21, 2010 12:25 pm 
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Posts: 4
This is it:
Quote:
Exception in thread "main" java.lang.NullPointerException
at org.lwjgl.opengl.GL11.glGenTextures(GL11.java:1348)
at org.newdawn.slick.opengl.InternalTextureLoader.createTextureID(InternalTextureLoader.java:106)
at org.newdawn.slick.opengl.InternalTextureLoader.getTexture(InternalTextureLoader.java:359)
at org.newdawn.slick.opengl.InternalTextureLoader.createTexture(InternalTextureLoader.java:343)
at org.newdawn.slick.opengl.InternalTextureLoader.createTexture(InternalTextureLoader.java:329)
at org.newdawn.slick.Image.<init>(Image.java:238)
at org.newdawn.slick.font.GlyphPage.<init>(GlyphPage.java:107)
at org.newdawn.slick.UnicodeFont.loadGlyphs(UnicodeFont.java:374)
at org.newdawn.slick.UnicodeFont.loadGlyphs(UnicodeFont.java:325)
at SlickApp1.FancyText.<init>(FancyText.java:43)
at SlickApp1.FancyText.main(FancyText.java:56)
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kevglass
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PostPosted: Tue Dec 21, 2010 12:27 pm 
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You trying to load the texture on a different thread?

Kev
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Gorgro
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PostPosted: Tue Dec 21, 2010 1:10 pm 
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Posts: 4
I just inserted that bit of code into the basic example code from the setup tutorial, nothing fancy. I wanted to try out some of the different effects.
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kevglass
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PostPosted: Tue Dec 21, 2010 1:41 pm 
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Looks like you're trying to load the font in the constructor of FancyText, you can't do it there because the GL context hasn't been created there.

Move it into init() of the game implementation.

Kev
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Gorgro
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PostPosted: Tue Dec 21, 2010 2:37 pm 
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Posts: 4
Yes, that did the trick! Thank you :)
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