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Posted

Hi guys I'm trying to get my custom entity to move smoothly throughout the world like all vanilla mobs. However the movement seems choppy at best. Here is a video I just made to demonstrate it.

 

As you can see the movement is quite choppy compared to normal mobs. What vanilla classes should I look at to check how MC handles smooth movement? Here is my BaseEntity file that my mob extends (no extra functionality in the subclass):

 

package com.gerg.catology.entity;

import com.gerg.catology.items.CatologyItems;

import net.minecraft.entity.EntityAgeable;
import net.minecraft.entity.ai.EntityAIFollowParent;
import net.minecraft.entity.ai.EntityAILookIdle;
import net.minecraft.entity.ai.EntityAIMate;
import net.minecraft.entity.ai.EntityAIPanic;
import net.minecraft.entity.ai.EntityAISwimming;
import net.minecraft.entity.ai.EntityAITempt;
import net.minecraft.entity.ai.EntityAIWander;
import net.minecraft.entity.ai.EntityAIWatchClosest;
import net.minecraft.entity.passive.EntityTameable;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.init.Items;
import net.minecraft.item.ItemStack;
import net.minecraft.pathfinding.PathNavigateGround;
import net.minecraft.world.World;

public class BaseEntity extends EntityTameable {

public BaseEntity(World worldIn) {
	super(worldIn);

	//sets up the ai for lil kitty cats
	//setupAI();
        ((PathNavigateGround)this.getNavigator()).setAvoidsWater(true);
        this.tasks.addTask(0, new EntityAISwimming(this));
        this.tasks.addTask(1, new EntityAIPanic(this, 1.25D));
        this.tasks.addTask(2, new EntityAIMate(this, 1.0D));
        this.tasks.addTask(3, new EntityAITempt(this, 1.1D, Items.wheat, false));
        this.tasks.addTask(4, new EntityAIFollowParent(this, 1.1D));
        //this.tasks.addTask(5, this.entityAIEatGrass);
        this.tasks.addTask(6, new EntityAIWander(this, 1.0D));
        this.tasks.addTask(7, new EntityAIWatchClosest(this, EntityPlayer.class, 6.0F));
        this.tasks.addTask(8, new EntityAILookIdle(this));
        //this.inventoryCrafting.setInventorySlotContents(0, new ItemStack(Items.dye, 1, 0));
        //this.inventoryCrafting.setInventorySlotContents(1, new ItemStack(Items.dye, 1, 0));
}


protected void clearAITasks(){
	tasks.taskEntries.clear();
	targetTasks.taskEntries.clear();
}


protected void setupAI() {		
	clearAITasks();
}

@Override
public EntityAgeable createChild(EntityAgeable ageable) {
	// TODO Auto-generated method stub
	return null;
}

}

 

Those tasks were copied directly from EntitySheep.class and I commented some out that I couldn't use directly, but those shouldn't matter. Also note that for some reason the only task that seems to work is the EntityAITempt one, when I hit my mob it doesn't run around crazy like normal ones do. Nor does it wander when nothing else is happening.

Check out the EntityRegistry.registerModEntity() method you use to register your custom entity:

 

    public static void registerModEntity(Class<? extends Entity> entityClass, String entityName, int id, Object mod, int trackingRange, int updateFrequency, boolean sendsVelocityUpdates)
    {
        instance().doModEntityRegistration(entityClass, entityName, id, mod, trackingRange, updateFrequency, sendsVelocityUpdates);
    }

 

The updateFrequency argument is what you want. Lower that number and your entity will move smoother.

 

  • Author

Oh man I can't believe I didn't remember that one thanks! I changed the param to 2 and that is so much nicer, do you happen to know what MC uses for vanilla? Also any ideas as to why no other AI class is working other than tempt?

 

EDIT: Nevermind I think the issue is with me altering AI in between different mod builds, the old AI seems to stop working and I must spawn a new one to see changes. I'm so dumb.  :(

Just FYI, almost all vanilla mobs use 3 as the update frequency and 80 as the tracking range - using the values of the most similar vanilla mob usually gives the best results.

 

You can find all the values in the EntityTracker class (or maybe EntityList? I forget which one).

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