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[Solved]NPE on Custom Block Model setRotation

Posted August 5, 201411 yr

[Reposting because I thought this was not up to standards, but I think I was wrong]

Hi there! First time modder but I'm experienced with Java through my time in school. I've been playing around with various modding tutorials over the past few days, but I recently got stuck when I tried to jump into creating a custom block model. I may have been a little too eager, and I should probably go make sure I'm versed in the basics. But Neale Gaming's tutorial's been fairly helpful.

Anyways! I got this error in the setRotation code of my custom block's .java file

package assets.runicweapons.models;

import net.minecraft.client.model.ModelBase;
import net.minecraft.client.model.ModelRenderer;
import net.minecraft.entity.Entity;

public class blockInscriptionTable extends ModelBase
{
  //fields
    ModelRenderer TableBase;
    ModelRenderer Leg;
    ModelRenderer Leg2;
    ModelRenderer Leg3;
    ModelRenderer Leg4;
    ModelRenderer InscriptionSet11;
    ModelRenderer InscriptionSet12;
    ModelRenderer InscriptionSet21;
    ModelRenderer InscriptionSet22;
  
  public blockInscriptionTable()
  {
    textureWidth = 64;
    textureHeight = 64;
    
      TableBase = new ModelRenderer(this, 0, 0);
      TableBase.addBox(0F, 0F, 0F, 16, 7, 16);
      TableBase.setRotationPoint(0F, 0F, 0F);
      TableBase.setTextureSize(64, 64);
      TableBase.mirror = true;
      setRotation(TableBase, 0F, 0F, 0F);
      Leg = new ModelRenderer(this, 0, 23);
      Leg.addBox(0F, 0F, 0F, 2, 8, 2);
      Leg.setRotationPoint(0F, 7F, 0F);
      Leg.setTextureSize(64, 64);
      Leg.mirror = true;
      setRotation(Leg, 0F, 0F, 0F);
      Leg2 = new ModelRenderer(this, 8, 23);
      Leg2.addBox(0F, 0F, 0F, 2, 8, 2);
      Leg2.setRotationPoint(14F, 7F, 0F);
      Leg2.setTextureSize(64, 64);
      Leg2.mirror = true;
      setRotation(Leg2, 0F, 0F, 0F);
      Leg3 = new ModelRenderer(this, 16, 23);
      Leg3.addBox(0F, 0F, 0F, 2, 8, 2);
      Leg3.setRotationPoint(0F, 7F, 14F);
      Leg3.setTextureSize(64, 64);
      Leg3.mirror = true;
      setRotation(Leg3, 0F, 0F, 0F);
      Leg4 = new ModelRenderer(this, 24, 23);
      Leg4.addBox(0F, 0F, 0F, 2, 8, 2);
      Leg4.setRotationPoint(14F, 7F, 14F);
      Leg4.setTextureSize(64, 64);
      Leg4.mirror = true;
      setRotation(Leg4, 0F, 0F, 0F);
      InscriptionSet11 = new ModelRenderer(this, 0, 33);
      InscriptionSet11.addBox(0F, 0F, 0F, 14, 1, 1);
      InscriptionSet11.setRotationPoint(1F, -1F, 1F);
      InscriptionSet11.setTextureSize(64, 64);
      InscriptionSet11.mirror = true;
      setRotation(InscriptionSet11, 0F, 0F, 0F);
      InscriptionSet12 = new ModelRenderer(this, 0, 35);
      InscriptionSet12.addBox(0F, 0F, 0F, 14, 1, 1);
      InscriptionSet12.setRotationPoint(1F, -1F, 14F);
      InscriptionSet12.setTextureSize(64, 64);
      InscriptionSet12.mirror = true;
      setRotation(InscriptionSet12, 0F, 0F, 0F);
      InscriptionSet21 = new ModelRenderer(this, 0, 37);
      InscriptionSet21.addBox(0F, 0F, 0F, 1, 1, 12);
      InscriptionSet21.setRotationPoint(1F, -1F, 2F);
      InscriptionSet21.setTextureSize(64, 64);
      InscriptionSet21.mirror = true;
      setRotation(InscriptionSet22, 0F, 0F, 0F);
      InscriptionSet22 = new ModelRenderer(this, 26, 37);
      InscriptionSet22.addBox(0F, 0F, 0F, 1, 1, 12);
      InscriptionSet22.setRotationPoint(14F, -1F, 2F);
      InscriptionSet22.setTextureSize(64, 64);
      InscriptionSet22.mirror = true;
      setRotation(InscriptionSet22, 0F, 0F, 0F);
  }
  
  public void render(Entity entity, float f, float f1, float f2, float f3, float f4, float f5)
  {
    super.render(entity, f, f1, f2, f3, f4, f5);
    setRotationAngles(f, f1, f2, f3, f4, f5, entity);
    TableBase.render(f5);
    Leg.render(f5);
    Leg2.render(f5);
    Leg3.render(f5);
    Leg4.render(f5);
    InscriptionSet11.render(f5);
    InscriptionSet12.render(f5);
    InscriptionSet21.render(f5);
    InscriptionSet22.render(f5);
  }
  
  public void renderModel(float f)
  {
TableBase.render(f);
Leg.render(f);
Leg2.render(f);
Leg3.render(f);
Leg4.render(f);
InscriptionSet11.render(f);
InscriptionSet12.render(f);
InscriptionSet21.render(f);
InscriptionSet22.render(f); 
  }
  
  private void setRotation(ModelRenderer model, float x, float y, float z)
  {
    model.rotateAngleX = x;
    model.rotateAngleY = y;
    model.rotateAngleZ = z;
  }
  
  public void setRotationAngles(float f, float f1, float f2, float f3, float f4, float f5, Entity entity)
  {
    super.setRotationAngles(f, f1, f2, f3, f4, f5, entity);
  }

}

error

[16:39:30] [Client thread/ERROR] [FML]: Fatal errors were detected during the transition from PREINITIALIZATION to INITIALIZATION. Loading cannot continue
[16:39:30] [Client thread/ERROR] [FML]: 
mcp{9.05} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized
FML{7.10.25.1198} [Forge Mod Loader] (forgeSrc-1.7.10-10.13.0.1198.jar) Unloaded->Constructed->Pre-initialized
Forge{10.13.0.1198} [Minecraft Forge] (forgeSrc-1.7.10-10.13.0.1198.jar) Unloaded->Constructed->Pre-initialized
RunicWeapons{1.0} [RunicWeapons] (bin) Unloaded->Constructed->Errored
examplemod{1.0} [Example Mod] (bin) Unloaded->Constructed->Pre-initialized
[16:39:30] [Client thread/ERROR] [FML]: The following problems were captured during this phase
[16:39:30] [Client thread/ERROR] [FML]: Caught exception from RunicWeapons
java.lang.NullPointerException
at assets.runicweapons.models.blockInscriptionTable.setRotation(blockInscriptionTable.java:111) ~[bin/:?]
at assets.runicweapons.models.blockInscriptionTable.<init>(blockInscriptionTable.java:72) ~[bin/:?]
at com.arcadius.runicweapons.renderer.RenderInscriptionTable.<init>(RenderInscriptionTable.java:21) ~[bin/:?]
at com.arcadius.runicweapons.proxy.ClientProxy.registerRenderThings(ClientProxy.java:18) ~[bin/:?]
at com.arcadius.runicweapons.RunicWeapons.preInit(RunicWeapons.java:54) ~[bin/:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_11]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_11]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_11]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_11]
at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:513) ~[forgeSrc-1.7.10-10.13.0.1198.jar:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_11]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_11]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_11]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_11]
at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74) ~[guava-17.0.jar:?]
at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47) ~[guava-17.0.jar:?]
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322) ~[guava-17.0.jar:?]
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304) ~[guava-17.0.jar:?]
at com.google.common.eventbus.EventBus.post(EventBus.java:275) ~[guava-17.0.jar:?]
at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:208) ~[forgeSrc-1.7.10-10.13.0.1198.jar:?]
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:187) ~[forgeSrc-1.7.10-10.13.0.1198.jar:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_11]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_11]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_11]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_11]
at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74) ~[guava-17.0.jar:?]
at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47) ~[guava-17.0.jar:?]
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322) ~[guava-17.0.jar:?]
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304) ~[guava-17.0.jar:?]
at com.google.common.eventbus.EventBus.post(EventBus.java:275) ~[guava-17.0.jar:?]
at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:118) [LoadController.class:?]
at cpw.mods.fml.common.Loader.preinitializeMods(Loader.java:513) [Loader.class:?]
at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:239) [FMLClientHandler.class:?]
at net.minecraft.client.Minecraft.startGame(Minecraft.java:532) [Minecraft.class:?]
at net.minecraft.client.Minecraft.run(Minecraft.java:941) [Minecraft.class:?]
at net.minecraft.client.main.Main.main(Main.java:164) [Main.class:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_11]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_11]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_11]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_11]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:134) [launchwrapper-1.9.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.9.jar:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_11]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_11]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_11]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_11]
at GradleStart.bounce(GradleStart.java:108) [start/:?]
at GradleStart.startClient(GradleStart.java:101) [start/:?]
at GradleStart.main(GradleStart.java:56) [start/:?]

I must be missing something blatantly obvious here, but hopefully you guys might see something that I missed.

Thanks!

Quote

August 5, 201411 yr

I see this twice:

setRotation(InscriptionSet22, 0F, 0F, 0F);

Not sure if it would crash though.

Quote

August 5, 201411 yr

Author

I see this twice:

setRotation(InscriptionSet22, 0F, 0F, 0F);

Not sure if it would crash though.

Not sure myself, but thanks for catching that!

EDIT: OH MY GOD THAT FIXED IT. Thank you!

Quote

August 5, 201411 yr

No problem!

Looking at the crash report you can see:

java.lang.NullPointerException

at assets.runicweapons.models.blockInscriptionTable.setRotation(blockInscriptionTable.java:111) ~[bin/:?]

So, I believe that you must have to define each rotation point, since you got a null pointer exception. I thought these rotations were (0,0,0) by default, but there aren't... That's good to know, haha.

Quote

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[Solved]NPE on Custom Block Model setRotation

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