THIS MOD REQUIRES PEHKUI IN ORDER TO WORK.

With this mod, by using Pehkui, mobs now have variety in their sizes! The default range for the size modifier is anywhere from 0.95-1.05 times the currently entity size, but each entity's size range can be set in their respective configuration file. These values can also apply modify to the mobs attack, knockback, health, and other attributes (All Configurable). There are now also set dimensional, biome and entity name overrides to create event more variation in mob spawning, however the names will only work if you have another mod that adds entity names. You can also modify how scale affects mobs spawned by breeding from their parents! This mod should work with all vanilla and modded entities. The ender dragon, wither, and some other entities are blacklisted by default. There are NBT values such as "vmhScale" to get the mob's size and other information for more customization when using entities modified through VMH, such as using them to modify loot tables, and resource packs.

This mod works with Nyf's Spiders, a port of Spiders 2.0!

Notes:

Distribution Types:

Distribution types are set by an integer 0-5. Distributions now use Guassian Distributions. I will work on getting new ones out, the code for the distribution types can be found below:

public static float setScalingValue(double min, double max, double median, int dist){
    float scale;
    double stdDev;

    //***Set Size Value based on Distribution Types
    switch (dist) {
        case 1 -> {//Guassian Distribution based on the mean  using stdDev- Trends towards median
            stdDev = (max - min) / (2 * 2.576);
            scale=(float)randomGaussianDistScale(median, min, max, stdDev);
        }
        case 2 -> {//Guassian Distribution based on the median using 1/2*stdDev - Trends Slightly towards median
            stdDev = (max - min) / (2 * 1.288);
            scale=(float)randomGaussianDistScale(median, min, max, stdDev);
        }
        case 3 -> {//Guassian Distribution based on the median using 2*stdDev  - Trends Heavily towards median
            stdDev = (max - min) / (2 * 5.152);
            scale=(float)randomGaussianDistScale(median, min, max, stdDev);
        }
        case 4 -> {//Guassian Distribution based on the mean using 1/4*stdDev - Trends Very Slightly towards median
            stdDev = (max - min) / (2 * 0.644);
            scale=(float)randomGaussianDistScale(median, min, max, stdDev);
        }
        case 5 -> {//Guassian Distribution based on the median using 4*stdDev  - Trends Very Heavily towards median
            stdDev = (max - min) / (2 * 10.304);
            scale=(float)randomGaussianDistScale(median, min, max, stdDev);
        }
        default ->
                scale = (float) (min + (max - min) * (Math.random())); //Default. Based on Max and Min, and Mean. Even distribution.
    }
    return scale;
}

Default Entity List With Values:

These are the old values. The default values are now between 0.95-1.05.

                        "minecraft:allay;0.9;1.1;1;0",
                        "minecraft:axolotl;0.9;1.1;1;0",
                        "minecraft:bat;0.9;1.1;1;0",
                        "minecraft:bee;0.9;1.1;1;0",
                        "minecraft:blaze;0.9;1.1;1;0",
                        "minecraft:cat;0.9;1.1;1;0",
                        "minecraft:cave_spider;0.9;1.1;1;0",
                        "minecraft:chicken;0.9;1.1;1;0",
                        "minecraft:cod;0.9;1.1;1;0",
                        "minecraft:cow;0.9;1.1;1;0",
                        "minecraft:creeper;0.9;1.1;1;0",
                        "minecraft:dolphin;0.9;1.1;1;0",
                        "minecraft:donkey;0.9;1.1;1;0",
                        "minecraft:drowned;0.9;1.1;1;0",
                        "minecraft:enderman;0.9;1.1;1;0",
                        "minecraft:evoker;0.9;1.1;1;0",
                        "minecraft:fox;0.9;1.1;1;0",
                        "minecraft:frog;0.9;1.1;1;0",
                        "minecraft:ghast;0.9;1.1;1;0",
                        "minecraft:glow_squid;0.9;1.1;1;0",
                        "minecraft:goat;0.9;1.1;1;0",
                        "minecraft:guardian;0.9;1.1;1;0",
                        "minecraft:hoglin;0.9;1.1;1;0",
                        "minecraft:horse;0.9;1.1;1;0",
                        "minecraft:husk;0.9;1.1;1;0",
                        "minecraft:illusioner;0.9;1.1;1;0",
                        "minecraft:iron_golem;0.9;1.1;1;0",
                        "minecraft:llama;0.9;1.1;1;0",
                        "minecraft:magma_cube;0.9;1.1;1;0",
                        "minecraft:mooshroom;0.9;1.1;1;0",
                        "minecraft:mule;0.9;1.1;1;0",
                        "minecraft:ocelot;0.9;1.1;1;0",
                        "minecraft:panda;0.9;1.1;1;0",
                        "minecraft:parrot;0.9;1.1;1;0",
                        "minecraft:phantom;0.9;1.1;1;0",
                        "minecraft:pig;0.9;1.1;1;0",
                        "minecraft:piglin_brute;0.9;1.1;1;0",
                        "minecraft:pillager;0.9;1.1;1;0",
                        "minecraft:polar_bear;0.9;1.1;1;0",
                        "minecraft:pufferfish;0.9;1.1;1;0",
                        "minecraft:rabbit;0.9;1.1;1;0",
                        "minecraft:ravager;0.9;1.1;1;0",
                        "minecraft:salmon;0.9;1.1;1;0",
                        "minecraft:sheep;0.9;1.1;1;0",
                        "minecraft:shulker;0.9;1.1;1;0",
                        "minecraft:silverfish;0.9;1.1;1;0",
                        "minecraft:skeleton;0.9;1.1;1;0",
                        "minecraft:slime;0.7;1.3;1;0",
                        "minecraft:snow_golem;0.9;1.1;1;0",
                        "minecraft:spider;0.8;1.2;1;0",
                        "minecraft:squid;0.9;1.1;1;0",
                        "minecraft:stray;0.9;1.1;1;0",
                        "minecraft:strider;0.9;1.1;1;0",
                        "minecraft:tadpole;0.9;1.1;1;0",
                        "minecraft:trader_llama;0.9;1.1;1;0",
                        "minecraft:tropical_fish;0.9;1.1;1;0",
                        "minecraft:turtle;0.9;1.1;1;0",
                        "minecraft:vex;0.9;1.1;1;0",
                        "minecraft:villager;0.92;1.08;1;0",
                        "minecraft:vindicator;0.9;1.1;1;0",
                        "minecraft:wandering_trader;0.92;1.08;1;0",
                        "minecraft:witch;0.9;1.1;1;0",
                        "minecraft:wither_skeleton;0.9;1.1;1;0",
                        "minecraft:wolf;0.9;1.1;1;0",
                        "minecraft:zoglin;0.9;1.1;1;0",
                        "minecraft:zombie;0.9;1.1;1;0",
                        "minecraft:zombie_horse;0.9;1.1;1;0",
                        "minecraft:zombie_villager;0.9;1.1;1;0",
                        "minecraft:zombified_piglin;0.9;1.1;1;0"

Plans:

(v1.1.8) Release new mod Mob Notebook to get values from this mod+others
(v1.1.7) Release addon VMH - Breeding to handle breeding values.

Notes:

More information will be released on the wiki soon!
If you change config values after loading a world, some mobs will have values from before still if they loaded before the change was made, as the values are applied upon entity spawn.

If you like my content and want to help support me make more please consider donating to my patreon!

Join my discord server: discord.io/Rikurob.

Special Thanks To:

Virtuoel - Pehkui Creator
telepathicgrunt - Initial config help
agadoo1211 -Mod testing/feedback

VMH - Variable Mob Height

Pehkui