hello, I'd like some help and guidance on this, I've been trying to make my spear item function like the trident, and then it crashed, I thought "oh it's probably because of the model?" so I tried making a model, then got kinda lost, so I then removed  the model files, now I need help since I can't really find the problem: here is crash log:

https://pastebin.com/KXA3uU9X

and here is the GitHub repository:

https://github.com/ClaraArmada/Serilis

link to some of the specific files:

https://github.com/ClaraArmada/Serilis/blob/bceffe46abca9daf7e1a4eae6ddb08f78300e65a/src/main/java/com/github/ClaraArmada/serilis/world/item/SpearItem.java

https://github.com/ClaraArmada/Serilis/blob/bceffe46abca9daf7e1a4eae6ddb08f78300e65a/src/main/java/com/github/ClaraArmada/serilis/world/entity/projectile/ThrownSpear.java

https://github.com/ClaraArmada/Serilis/blob/bceffe46abca9daf7e1a4eae6ddb08f78300e65a/src/main/java/com/github/ClaraArmada/serilis/init/EntityInit.java

thank you for your help!

Depending on how you want to make your model, you can either use a json model with ThrownItemRenderer (or a custom renderer if you want some fancy logic, or a java model (you can generate this via BlockBench) attached via a BEWLR.

java.lang.NullPointerException: Cannot invoke "net.minecraft.client.renderer.entity.EntityRenderer.shouldRender(net.minecraft.world.entity.Entity, net.minecraft.client.renderer.culling.Frustum, double, double, double)" because "entityrenderer" is null

 

i say its missing the part where you tell it what model renderer to use whit what entity 

 

 

Spoiler

				
			package merctool;				
			import net.minecraftforge.eventbus.api.SubscribeEvent;
		import net.minecraftforge.fml.common.Mod;
		import net.minecraftforge.fml.event.lifecycle.FMLClientSetupEvent;
		import merctool.entity.EntityInit;
		import merctool.entity.detonator_ghost_renderer;
		import merctool.entity.hole_entity_renderer;
		import merctool.entity.icon_entity_renderer;
		import merctool.entity.lance_entity_renderer;
		import merctool.entity.red_hot_iron_entity_renderer;
		import net.minecraft.client.renderer.entity.EntityRenderers;
		import net.minecraftforge.api.distmarker.Dist;				
			
		//@Mod.EventBusSubscriber(modid = merctool.MOD_ID,  bus = Mod.EventBusSubscriber.Bus.FORGE )
		@Mod.EventBusSubscriber(modid = merctool.MOD_ID, bus = Mod.EventBusSubscriber.Bus.MOD, value = Dist.CLIENT)
		public class ClientSetup {
		    @SubscribeEvent
		    public static void doSetup(FMLClientSetupEvent event) {
		        
		        EntityRenderers.register(EntityInit.RED_HOT_IRON_ENTITY.get(), red_hot_iron_entity_renderer::new);
		        
		        EntityRenderers.register(EntityInit.ICON_ENTITY.get(), icon_entity_renderer::new);
		        
		        EntityRenderers.register(EntityInit.LANCE_ENTITY.get(), lance_entity_renderer::new);
		        
		        EntityRenderers.register(EntityInit.HOLE_ENTITY.get(), hole_entity_renderer::new);
		        
		        EntityRenderers.register(EntityInit.DETONATOR_GHOST.get(), detonator_ghost_renderer::new);
		        
		        
		        /*
		         EntityRenderers.register(EntityInit.EXPLOSIVE_ARROW.get(), ExplosiveArrowRenderer::new);
		         
		         EntityRenderers.register(EntityInit.MERCENARY_ARROW.get(), mercenaryarrow_renderer::new);
		         
		         EntityRenderers.register(EntityInit.PUERTA_WATCHER_ENTITY.get(), watcher_entity_renderer::new);
		         
		         EntityRenderers.register(EntityInit.MANHOLE_WATCHER_ENTITY.get(), watcher_entity_renderer::new);
		         */
		        
		    }
		}