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[1.13.2] ItemRenderer is null

DrLuigi

By DrLuigi
in Modder Support

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DrLuigi Tree Puncher

DrLuigi

Posted
Posted

I'd like to create an entity like snowball, and tried to use RenderSprite class as a renderer of my entity. 

private void doClientStuff(final FMLClientSetupEvent event) {
  ItemRenderer itemRenderer = Minecraft.getInstance().getItemRenderer();
  
  RenderingRegistry.registerEntityRenderingHandler(EntityProactiv.class, new IRenderFactory<EntityProactiv>() {
    @Override
    public Render<? super EntityProactiv> createRenderFor(RenderManager manager) {
      return new RenderSprite<EntityProactiv>(manager, ModItems.proactiv, itemRenderer);
    }
  });
}

(EntityProactive is the entity I'm creating.)

 

However, when I throw the entity in the game, the game crashes on account of NullPointerException.

 

Here is a part of a crash report. 

---- Minecraft Crash Report ----
// But it works on my machine.

Time: 19/03/14 16:11
Description: Rendering entity in world

java.lang.NullPointerException: Rendering entity in world
	at net.minecraft.client.renderer.entity.RenderSprite.doRender(RenderSprite.java:41)
	at net.minecraft.client.renderer.entity.RenderManager.renderEntity(RenderManager.java:374)
	at net.minecraft.client.renderer.entity.RenderManager.renderEntityStatic(RenderManager.java:363)
	at net.minecraft.client.renderer.WorldRenderer.renderEntities(WorldRenderer.java:591)
	at net.minecraft.client.renderer.GameRenderer.updateCameraAndRender(GameRenderer.java:844)
	at net.minecraft.client.renderer.GameRenderer.renderWorld(GameRenderer.java:771)
	at net.minecraft.client.renderer.GameRenderer.updateCameraAndRender(GameRenderer.java:635)
	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:871)
	at net.minecraft.client.Minecraft.run(Minecraft.java:398)
	at net.minecraft.client.main.Main.main(Main.java:117)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:55)
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:19)
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:32)
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:50)
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:56)
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:42)
	at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:87)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Client thread
Stacktrace:
	at net.minecraft.client.renderer.entity.RenderSprite.doRender(RenderSprite.java:41)

-- Entity being rendered --
Details:
	Entity Type: examplemod:proactiv (com.example.examplemod.entity.EntityProactiv)
	Entity ID: 734
	Entity Name: entity.examplemod.proactiv
	Entity's Exact location: -136.89, 32.68, 4.36
	Entity's Block location: World: (-137,32,4), Chunk: (at 7,2,4 in -9,0; contains blocks -144,0,0 to -129,255,15), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Entity's Momentum: 0.73, -1.35, -0.35
	Entity's Passengers: []
	Entity's Vehicle: ~~ERROR~~ NullPointerException: null

-- Renderer details --
Details:
	Assigned renderer: net.minecraft.client.renderer.entity.RenderSprite@3dad282e
	Location: 0.22,1.15,-0.10 - World: (0,1,-1), Chunk: (at 0,0,15 in 0,-1; contains blocks 0,0,-16 to 15,255,-1), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)
	Rotation: -47.278442
	Delta: 0.29999948
Stacktrace:
	at net.minecraft.client.renderer.entity.RenderManager.renderEntity(RenderManager.java:374)
	at net.minecraft.client.renderer.entity.RenderManager.renderEntityStatic(RenderManager.java:363)
	at net.minecraft.client.renderer.WorldRenderer.renderEntities(WorldRenderer.java:591)
	at net.minecraft.client.renderer.GameRenderer.updateCameraAndRender(GameRenderer.java:844)
	at net.minecraft.client.renderer.GameRenderer.renderWorld(GameRenderer.java:771)

 

Will you tell me the problem of my code?

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DrLuigi Tree Puncher

DrLuigi

Posted
  • Author
Posted
11 minutes ago, diesieben07 said:

Obtain the ItemRenderer instance when your IRenderFactory is called.

I modified my code, but it doesn't work... 

private void doClientStuff(final FMLClientSetupEvent event) {
  RenderingRegistry.registerEntityRenderingHandler(EntityProactiv.class, new IRenderFactory<EntityProactiv>() {
    ItemRenderer itemRenderer = Minecraft.getInstance().getItemRenderer();
    @Override
    public Render<? super EntityProactiv> createRenderFor(RenderManager manager) {
      return new RenderSprite<EntityProactiv>(manager, ModItems.proactiv, itemRenderer);
    }
  });
}
---- Minecraft Crash Report ----
// Who set us up the TNT?

Time: 19/03/14 18:45
Description: Rendering entity in world

java.lang.NullPointerException: Rendering entity in world
	at net.minecraft.client.renderer.entity.RenderSprite.doRender(RenderSprite.java:41)
	at net.minecraft.client.renderer.entity.RenderManager.renderEntity(RenderManager.java:374)
	at net.minecraft.client.renderer.entity.RenderManager.renderEntityStatic(RenderManager.java:363)
	at net.minecraft.client.renderer.WorldRenderer.renderEntities(WorldRenderer.java:591)
	at net.minecraft.client.renderer.GameRenderer.updateCameraAndRender(GameRenderer.java:844)
	at net.minecraft.client.renderer.GameRenderer.renderWorld(GameRenderer.java:771)
	at net.minecraft.client.renderer.GameRenderer.updateCameraAndRender(GameRenderer.java:635)
	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:871)
	at net.minecraft.client.Minecraft.run(Minecraft.java:398)
	at net.minecraft.client.main.Main.main(Main.java:117)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:55)
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:19)
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:32)
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:50)
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:56)
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:42)
	at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:87)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Client thread
Stacktrace:
	at net.minecraft.client.renderer.entity.RenderSprite.doRender(RenderSprite.java:41)

-- Entity being rendered --
Details:
	Entity Type: examplemod:proactiv (com.example.examplemod.entity.EntityProactiv)
	Entity ID: 1210
	Entity Name: entity.examplemod.proactiv
	Entity's Exact location: -213.04, 76.52, -299.91
	Entity's Block location: World: (-214,76,-300), Chunk: (at 10,4,4 in -14,-19; contains blocks -224,0,-304 to -209,255,-289), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
	Entity's Momentum: -0.39, -1.03, -1.05
	Entity's Passengers: []
	Entity's Vehicle: ~~ERROR~~ NullPointerException: null

-- Renderer details --
Details:
	Assigned renderer: net.minecraft.client.renderer.entity.RenderSprite@1cd50f37
	Location: 0.00,-1.82,0.00 - World: (0,-2,0), Chunk: (at 0,-1,0 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Rotation: -43.59375
	Delta: 0.6999997
Stacktrace:
	at net.minecraft.client.renderer.entity.RenderManager.renderEntity(RenderManager.java:374)
	at net.minecraft.client.renderer.entity.RenderManager.renderEntityStatic(RenderManager.java:363)
	at net.minecraft.client.renderer.WorldRenderer.renderEntities(WorldRenderer.java:591)
	at net.minecraft.client.renderer.GameRenderer.updateCameraAndRender(GameRenderer.java:844)
	at net.minecraft.client.renderer.GameRenderer.renderWorld(GameRenderer.java:771)

 

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DavidM World Shaper

DavidM

Posted
Posted

Get the instance of 

Minecraft.getInstance().getItemRenderer();

inside IRenderFactory#createRenderFor, and use the returned item renderer in 

new RenderSprite<EntityProactiv>

as the item renderer parameter.

Some tips:

Spoiler

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2. Always post your code.

3. Never copy and paste code. You won't learn anything from doing that.

4. 

Quote

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5. Learn to use your IDE, especially the debugger.

6.

Quote

The "picture that's worth 1000 words" only works if there's an obvious problem or a freehand red circle around it.

Support & Bug Reports:

Spoiler

1. Read the EAQ before asking for help. Remember to provide the appropriate log(s).

2. Versions below 1.11 are no longer supported due to their age. Update to a modern version of Minecraft to receive support.

 

 

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DrLuigi Tree Puncher

DrLuigi

Posted
  • Author
Posted
4 minutes ago, DavidM said:

Get the instance of 


Minecraft.getInstance().getItemRenderer();

inside IRenderFactory#createRenderFor, and use the returned item renderer in 


new RenderSprite<EntityProactiv>

as the item renderer parameter.

I've solved the problem! Thanks a lot for your help, diesieben07 and DavidM.

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