i have a block that is very similar to the light block, i need the texture to change depending on the light level the block has i already have the light block thing functional but the only problem is changing the texture. this is the main json for the item.

{
  "parent": "item/generated",
  "textures": {
    "layer0": "mrmod:item/darkness"
  },
  "overrides": [
    { "predicate": { "level": 0.0000 }, "model": "mrmod:item/darkness_00" },
    { "predicate": { "level": 0.0625 }, "model": "mrmod:item/darkness_01" },
    { "predicate": { "level": 0.1250 }, "model": "mrmod:item/darkness_02" },
    { "predicate": { "level": 0.1875 }, "model": "mrmod:item/darkness_03" },
    { "predicate": { "level": 0.2500 }, "model": "mrmod:item/darkness_04" },
    { "predicate": { "level": 0.3125 }, "model": "mrmod:item/darkness_05" },
    { "predicate": { "level": 0.3750 }, "model": "mrmod:item/darkness_06" },
    { "predicate": { "level": 0.4375 }, "model": "mrmod:item/darkness_07" },
    { "predicate": { "level": 0.5000 }, "model": "mrmod:item/darkness_08" },
    { "predicate": { "level": 0.5625 }, "model": "mrmod:item/darkness_09" },
    { "predicate": { "level": 0.6250 }, "model": "mrmod:item/darkness_10" },
    { "predicate": { "level": 0.6875 }, "model": "mrmod:item/darkness_11" },
    { "predicate": { "level": 0.7500 }, "model": "mrmod:item/darkness_12" },
    { "predicate": { "level": 0.8125 }, "model": "mrmod:item/darkness_13" },
    { "predicate": { "level": 0.8750 }, "model": "mrmod:item/darkness_14" },
    { "predicate": { "level": 0.9375 }, "model": "mrmod:item/darkness_15" },
    { "predicate": { "level": -0.0625 }, "model": "mrmod:item/darkness_01" },
    { "predicate": { "level": -0.1250 }, "model": "mrmod:item/darkness_02" },
    { "predicate": { "level": -0.1875 }, "model": "mrmod:item/darkness_03" },
    { "predicate": { "level": -0.2500 }, "model": "mrmod:item/darkness_04" },
    { "predicate": { "level": -0.3125 }, "model": "mrmod:item/darkness_05" },
    { "predicate": { "level": -0.3750 }, "model": "mrmod:item/darkness_06" },
    { "predicate": { "level": -0.4375 }, "model": "mrmod:item/darkness_07" },
    { "predicate": { "level": -0.5000 }, "model": "mrmod:item/darkness_08" },
    { "predicate": { "level": -0.5625 }, "model": "mrmod:item/darkness_09" },
    { "predicate": { "level": -0.6250 }, "model": "mrmod:item/darkness_10" },
    { "predicate": { "level": -0.6875 }, "model": "mrmod:item/darkness_11" },
    { "predicate": { "level": -0.7500 }, "model": "mrmod:item/darkness_12" },
    { "predicate": { "level": -0.8125 }, "model": "mrmod:item/darkness_13" },
    { "predicate": { "level": -0.8750 }, "model": "mrmod:item/darkness_14" },
    { "predicate": { "level": -0.9375 }, "model": "mrmod:item/darkness_15" }
  ]
}

i think the problem is getting the predicate to work

i also found a class called LightPredicate but i dont know how to do something like that

package net.minecraft.advancements.critereon;

import com.google.gson.JsonElement;
import com.google.gson.JsonNull;
import com.google.gson.JsonObject;
import javax.annotation.Nullable;
import net.minecraft.core.BlockPos;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.util.GsonHelper;

public class LightPredicate {
   public static final LightPredicate ANY = new LightPredicate(MinMaxBounds.Ints.ANY);
   private final MinMaxBounds.Ints composite;

   LightPredicate(MinMaxBounds.Ints pComposite) {
      this.composite = pComposite;
   }

   public boolean matches(ServerLevel pLevel, BlockPos pPos) {
      if (this == ANY) {
         return true;
      } else if (!pLevel.isLoaded(pPos)) {
         return false;
      } else {
         return this.composite.matches(pLevel.getMaxLocalRawBrightness(pPos));
      }
   }

   public JsonElement serializeToJson() {
      if (this == ANY) {
         return JsonNull.INSTANCE;
      } else {
         JsonObject jsonobject = new JsonObject();
         jsonobject.add("light", this.composite.serializeToJson());
         return jsonobject;
      }
   }

   public static LightPredicate fromJson(@Nullable JsonElement pJson) {
      if (pJson != null && !pJson.isJsonNull()) {
         JsonObject jsonobject = GsonHelper.convertToJsonObject(pJson, "light");
         MinMaxBounds.Ints minmaxbounds$ints = MinMaxBounds.Ints.fromJson(jsonobject.get("light"));
         return new LightPredicate(minmaxbounds$ints);
      } else {
         return ANY;
      }
   }

   public static class Builder {
      private MinMaxBounds.Ints composite = MinMaxBounds.Ints.ANY;

      public static LightPredicate.Builder light() {
         return new LightPredicate.Builder();
      }

      public LightPredicate.Builder setComposite(MinMaxBounds.Ints pComposite) {
         this.composite = pComposite;
         return this;
      }

      public LightPredicate build() {
         return new LightPredicate(this.composite);
      }
   }
}

 

its only for the item the block is invisible