Code/net/minecraft/client/model/PufferfishMidModel.java

package net.minecraft.client.model;

import net.minecraft.client.model.geom.ModelPart;
import net.minecraft.client.model.geom.PartPose;
import net.minecraft.client.model.geom.builders.CubeListBuilder;
import net.minecraft.client.model.geom.builders.LayerDefinition;
import net.minecraft.client.model.geom.builders.MeshDefinition;
import net.minecraft.client.model.geom.builders.PartDefinition;
import net.minecraft.client.renderer.entity.state.EntityRenderState;
import net.minecraft.util.Mth;
import net.minecraftforge.api.distmarker.Dist;
import net.minecraftforge.api.distmarker.OnlyIn;

@OnlyIn(Dist.CLIENT)
public class PufferfishMidModel extends EntityModel<EntityRenderState> {
    private final ModelPart leftBlueFin;
    private final ModelPart rightBlueFin;

    public PufferfishMidModel(ModelPart p_170842_) {
        super(p_170842_);
        this.leftBlueFin = p_170842_.getChild("left_blue_fin");
        this.rightBlueFin = p_170842_.getChild("right_blue_fin");
    }

    public static LayerDefinition createBodyLayer() {
        MeshDefinition meshdefinition = new MeshDefinition();
        PartDefinition partdefinition = meshdefinition.getRoot();
        int i = 22;
        partdefinition.addOrReplaceChild(
            "body", CubeListBuilder.create().texOffs(12, 22).addBox(-2.5F, -5.0F, -2.5F, 5.0F, 5.0F, 5.0F), PartPose.offset(0.0F, 22.0F, 0.0F)
        );
        partdefinition.addOrReplaceChild(
            "right_blue_fin",
            CubeListBuilder.create().texOffs(24, 0).addBox(-2.0F, 0.0F, 0.0F, 2.0F, 0.0F, 2.0F),
            PartPose.offset(-2.5F, 18.0F, -1.5F)
        );
        partdefinition.addOrReplaceChild(
            "left_blue_fin", CubeListBuilder.create().texOffs(24, 3).addBox(0.0F, 0.0F, 0.0F, 2.0F, 0.0F, 2.0F), PartPose.offset(2.5F, 18.0F, -1.5F)
        );
        partdefinition.addOrReplaceChild(
            "top_front_fin",
            CubeListBuilder.create().texOffs(19, 17).addBox(-2.5F, -1.0F, 0.0F, 5.0F, 1.0F, 0.0F),
            PartPose.offsetAndRotation(0.0F, 17.0F, -2.5F, (float) (Math.PI / 4), 0.0F, 0.0F)
        );
        partdefinition.addOrReplaceChild(
            "top_back_fin",
            CubeListBuilder.create().texOffs(11, 17).addBox(-2.5F, -1.0F, 0.0F, 5.0F, 1.0F, 0.0F),
            PartPose.offsetAndRotation(0.0F, 17.0F, 2.5F, (float) (-Math.PI / 4), 0.0F, 0.0F)
        );
        partdefinition.addOrReplaceChild(
            "right_front_fin",
            CubeListBuilder.create().texOffs(5, 17).addBox(-1.0F, -5.0F, 0.0F, 1.0F, 5.0F, 0.0F),
            PartPose.offsetAndRotation(-2.5F, 22.0F, -2.5F, 0.0F, (float) (-Math.PI / 4), 0.0F)
        );
        partdefinition.addOrReplaceChild(
            "right_back_fin",
            CubeListBuilder.create().texOffs(9, 17).addBox(-1.0F, -5.0F, 0.0F, 1.0F, 5.0F, 0.0F),
            PartPose.offsetAndRotation(-2.5F, 22.0F, 2.5F, 0.0F, (float) (Math.PI / 4), 0.0F)
        );
        partdefinition.addOrReplaceChild(
            "left_back_fin",
            CubeListBuilder.create().texOffs(1, 17).addBox(0.0F, -5.0F, 0.0F, 1.0F, 5.0F, 0.0F),
            PartPose.offsetAndRotation(2.5F, 22.0F, 2.5F, 0.0F, (float) (-Math.PI / 4), 0.0F)
        );
        partdefinition.addOrReplaceChild(
            "left_front_fin",
            CubeListBuilder.create().texOffs(1, 17).addBox(0.0F, -5.0F, 0.0F, 1.0F, 5.0F, 0.0F),
            PartPose.offsetAndRotation(2.5F, 22.0F, -2.5F, 0.0F, (float) (Math.PI / 4), 0.0F)
        );
        partdefinition.addOrReplaceChild(
            "bottom_back_fin",
            CubeListBuilder.create().texOffs(18, 20).addBox(0.0F, 0.0F, 0.0F, 5.0F, 1.0F, 0.0F),
            PartPose.offsetAndRotation(-2.5F, 22.0F, 2.5F, (float) (Math.PI / 4), 0.0F, 0.0F)
        );
        partdefinition.addOrReplaceChild(
            "bottom_front_fin",
            CubeListBuilder.create().texOffs(17, 19).addBox(-2.5F, 0.0F, 0.0F, 5.0F, 1.0F, 1.0F),
            PartPose.offsetAndRotation(0.0F, 22.0F, -2.5F, (float) (-Math.PI / 4), 0.0F, 0.0F)
        );
        return LayerDefinition.create(meshdefinition, 32, 32);
    }

    @Override
    public void setupAnim(EntityRenderState p_364209_) {
        super.setupAnim(p_364209_);
        this.rightBlueFin.zRot = -0.2F + 0.4F * Mth.sin(p_364209_.ageInTicks * 0.2F);
        this.leftBlueFin.zRot = 0.2F - 0.4F * Mth.sin(p_364209_.ageInTicks * 0.2F);
    }
}