Code/net/minecraft/client/model/PhantomModel.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.PhantomRenderState;
import net.minecraft.util.Mth;
import net.minecraftforge.api.distmarker.Dist;
import net.minecraftforge.api.distmarker.OnlyIn;

@OnlyIn(Dist.CLIENT)
public class PhantomModel extends EntityModel<PhantomRenderState> {
    private static final String TAIL_BASE = "tail_base";
    private static final String TAIL_TIP = "tail_tip";
    private final ModelPart leftWingBase;
    private final ModelPart leftWingTip;
    private final ModelPart rightWingBase;
    private final ModelPart rightWingTip;
    private final ModelPart tailBase;
    private final ModelPart tailTip;

    public PhantomModel(ModelPart p_170788_) {
        super(p_170788_);
        ModelPart modelpart = p_170788_.getChild("body");
        this.tailBase = modelpart.getChild("tail_base");
        this.tailTip = this.tailBase.getChild("tail_tip");
        this.leftWingBase = modelpart.getChild("left_wing_base");
        this.leftWingTip = this.leftWingBase.getChild("left_wing_tip");
        this.rightWingBase = modelpart.getChild("right_wing_base");
        this.rightWingTip = this.rightWingBase.getChild("right_wing_tip");
    }

    public static LayerDefinition createBodyLayer() {
        MeshDefinition meshdefinition = new MeshDefinition();
        PartDefinition partdefinition = meshdefinition.getRoot();
        PartDefinition partdefinition1 = partdefinition.addOrReplaceChild(
            "body", CubeListBuilder.create().texOffs(0, 8).addBox(-3.0F, -2.0F, -8.0F, 5.0F, 3.0F, 9.0F), PartPose.rotation(-0.1F, 0.0F, 0.0F)
        );
        PartDefinition partdefinition2 = partdefinition1.addOrReplaceChild(
            "tail_base", CubeListBuilder.create().texOffs(3, 20).addBox(-2.0F, 0.0F, 0.0F, 3.0F, 2.0F, 6.0F), PartPose.offset(0.0F, -2.0F, 1.0F)
        );
        partdefinition2.addOrReplaceChild(
            "tail_tip", CubeListBuilder.create().texOffs(4, 29).addBox(-1.0F, 0.0F, 0.0F, 1.0F, 1.0F, 6.0F), PartPose.offset(0.0F, 0.5F, 6.0F)
        );
        PartDefinition partdefinition3 = partdefinition1.addOrReplaceChild(
            "left_wing_base",
            CubeListBuilder.create().texOffs(23, 12).addBox(0.0F, 0.0F, 0.0F, 6.0F, 2.0F, 9.0F),
            PartPose.offsetAndRotation(2.0F, -2.0F, -8.0F, 0.0F, 0.0F, 0.1F)
        );
        partdefinition3.addOrReplaceChild(
            "left_wing_tip",
            CubeListBuilder.create().texOffs(16, 24).addBox(0.0F, 0.0F, 0.0F, 13.0F, 1.0F, 9.0F),
            PartPose.offsetAndRotation(6.0F, 0.0F, 0.0F, 0.0F, 0.0F, 0.1F)
        );
        PartDefinition partdefinition4 = partdefinition1.addOrReplaceChild(
            "right_wing_base",
            CubeListBuilder.create().texOffs(23, 12).mirror().addBox(-6.0F, 0.0F, 0.0F, 6.0F, 2.0F, 9.0F),
            PartPose.offsetAndRotation(-3.0F, -2.0F, -8.0F, 0.0F, 0.0F, -0.1F)
        );
        partdefinition4.addOrReplaceChild(
            "right_wing_tip",
            CubeListBuilder.create().texOffs(16, 24).mirror().addBox(-13.0F, 0.0F, 0.0F, 13.0F, 1.0F, 9.0F),
            PartPose.offsetAndRotation(-6.0F, 0.0F, 0.0F, 0.0F, 0.0F, -0.1F)
        );
        partdefinition1.addOrReplaceChild(
            "head",
            CubeListBuilder.create().texOffs(0, 0).addBox(-4.0F, -2.0F, -5.0F, 7.0F, 3.0F, 5.0F),
            PartPose.offsetAndRotation(0.0F, 1.0F, -7.0F, 0.2F, 0.0F, 0.0F)
        );
        return LayerDefinition.create(meshdefinition, 64, 64);
    }

    public void setupAnim(PhantomRenderState p_368422_) {
        super.setupAnim(p_368422_);
        float f = p_368422_.flapTime * 7.448451F * (float) (Math.PI / 180.0);
        float f1 = 16.0F;
        this.leftWingBase.zRot = Mth.cos(f) * 16.0F * (float) (Math.PI / 180.0);
        this.leftWingTip.zRot = Mth.cos(f) * 16.0F * (float) (Math.PI / 180.0);
        this.rightWingBase.zRot = -this.leftWingBase.zRot;
        this.rightWingTip.zRot = -this.leftWingTip.zRot;
        this.tailBase.xRot = -(5.0F + Mth.cos(f * 2.0F) * 5.0F) * (float) (Math.PI / 180.0);
        this.tailTip.xRot = -(5.0F + Mth.cos(f * 2.0F) * 5.0F) * (float) (Math.PI / 180.0);
    }
}