I've made an Custom Slime Entity that his color works like Sheep's color. So i have one white slime template and for each slime created i "randomize" it's color.
The problem is that when the slime dies, it's childs spawn with the template color and not with the "parent" color.
I've already googled around and searched betwen the classes but ended up with nothing, so how can i pass the color to the new little slimes when a big one dies?

the Entity code:

package net.ddns.samjviana.morethings.entity;

import java.util.Arrays;
import java.util.Map;
import java.util.Random;
import java.util.stream.Collectors;

import com.google.common.collect.Maps;

import net.minecraft.entity.EntitySize;
import net.minecraft.entity.EntityType;
import net.minecraft.entity.ILivingEntityData;
import net.minecraft.entity.Pose;
import net.minecraft.entity.SpawnReason;
import net.minecraft.entity.ai.attributes.AttributeModifierMap;
import net.minecraft.entity.ai.attributes.Attributes;
import net.minecraft.entity.monster.SlimeEntity;
import net.minecraft.item.DyeColor;
import net.minecraft.nbt.CompoundNBT;
import net.minecraft.network.datasync.DataParameter;
import net.minecraft.network.datasync.DataSerializers;
import net.minecraft.network.datasync.EntityDataManager;
import net.minecraft.util.DamageSource;
import net.minecraft.util.math.MathHelper;
import net.minecraft.world.DifficultyInstance;
import net.minecraft.world.IWorld;
import net.minecraft.world.World;

public class ColoredSlimeEntity extends SlimeEntity {
    private static final DataParameter<Byte> DYE_COLOR = EntityDataManager.createKey(SlimeEntity.class,
            DataSerializers.BYTE);
    private static final Map<DyeColor, float[]> DYE_TO_RGB = Maps.newEnumMap(Arrays.stream(DyeColor.values()).collect(Collectors.toMap(
        (DyeColor dyeColor) -> {
            return dyeColor;
        }, ColoredSlimeEntity::createSlimeColor)));

    public ColoredSlimeEntity(final EntityType<? extends ColoredSlimeEntity> entityType, final World world) {
        super(entityType, world);
    }

    @Override
    protected void setSlimeSize(int size, boolean resetHealth) {
        super.setSlimeSize(size, resetHealth);
    }

    @Override
    protected boolean spawnCustomParticles() {
        int i = this.getSlimeSize();

        for(int j = 0; j < i * 8; ++j) {
            float f = this.rand.nextFloat() * ((float)Math.PI * 2F);
            float f1 = this.rand.nextFloat() * 0.5F + 0.5F;
            float f2 = MathHelper.sin(f) * (float)i * 0.5F * f1;
            float f3 = MathHelper.cos(f) * (float)i * 0.5F * f1;
            this.world.addParticle(this.getSquishParticle(), this.getPosX() + (double)f2, this.getPosY(), this.getPosZ() + (double)f3, 0.0D, 0.0D, 0.0D);
        }
        
        return super.spawnCustomParticles();
    }

    @Override
    public void onDeath(DamageSource cause) {
        // TODO Auto-generated method stub
        super.onDeath(cause);
    }

    public static float[] getDyeRgb(DyeColor dyeColor) {
        return DYE_TO_RGB.get(dyeColor);
    }  

    private static float[] createSlimeColor(DyeColor dyeColorIn) {
        if (dyeColorIn == DyeColor.WHITE) {
           return new float[]{0.9019608F, 0.9019608F, 0.9019608F};
        } else {
           float[] afloat = dyeColorIn.getColorComponentValues();
           return new float[]{afloat[0] * 0.75F, afloat[1] * 0.75F, afloat[2] * 0.75F};
        }
    }  

    public static AttributeModifierMap getAttributes() {
        AttributeModifierMap.MutableAttribute attributes = SlimeEntity.func_233666_p_();

        attributes.func_233814_a_(Attributes.field_233823_f_);

        return attributes.func_233813_a_();
    }

    @Override
    public ILivingEntityData onInitialSpawn(IWorld worldIn, DifficultyInstance difficultyIn, SpawnReason reason, ILivingEntityData spawnDataIn, CompoundNBT dataTag) {
        this.setSlimeColor(getRandomSlimeColor(worldIn.getRandom()));
        return super.onInitialSpawn(worldIn, difficultyIn, reason, spawnDataIn, dataTag);
    }

    public void setSlimeColor(DyeColor color) {
        byte b0 = this.dataManager.get(DYE_COLOR);
        this.dataManager.set(DYE_COLOR, (byte)(b0 & 240 | color.getId() & 15));
    }  

    public static DyeColor getRandomSlimeColor(Random random) {
        int i = random.nextInt(15);
        return DyeColor.byId(i);
    }
  
    @Override
    protected void registerData() {
        super.registerData();
        this.dataManager.register(DYE_COLOR, (byte)0);
    }
  
    public void writeAdditional(CompoundNBT compound) {
        super.writeAdditional(compound);
        compound.putByte("Color", (byte)this.getSlimeColor().getId());
    }  

    public DyeColor getSlimeColor() {
        return DyeColor.byId(this.dataManager.get(DYE_COLOR) & 15);
    }  

    @Override
    public EntitySize getSize(Pose poseIn) {
        return super.getSize(poseIn);
    }

    @Override
    public int getSlimeSize() {
        return super.getSlimeSize();
    }
}

 

Edited July 12, 20205 yr by samjviana

Try overriding the remove method in the ColoredSlimeEntity and setting the color of the new children to the same color as the parent.

Just tried that, and it worked. Thank you!!

38 minutes ago, samjviana said:

Just tried that, and it worked. Thank you!!

Glad to be of help. Happy modding!