// Copyright 2014-2017 ClassicalSharp | Licensed under BSD-3
using System;
using ClassicalSharp.Entities;
using ClassicalSharp.GraphicsAPI;
using ClassicalSharp.Physics;
using OpenTK;

namespace ClassicalSharp.Model {

	public class ZombieModel : IModel {
		
		public ZombieModel(Game window) : base(window) { }
		
		public override void CreateParts() {
			vertices = new ModelVertex[boxVertices * 7];
			Head = BuildBox(MakeBoxBounds(-4, 24, -4, 4, 32, 4)
			                .TexOrigin(0, 0)
			                .RotOrigin(0, 24, 0));
			Hat = BuildBox(MakeBoxBounds(-4, 24, -4, 4, 32, 4)
			                .TexOrigin(32, 0)
			                .RotOrigin(0, 24, 0).Expand(0.5f));
			Torso = BuildBox(MakeBoxBounds(-4, 12, -2, 4, 24, 2)
			                  .TexOrigin(16, 16));
			LeftLeg = BuildBox(MakeBoxBounds(0, 0, -2, -4, 12, 2)
			                    .TexOrigin(0, 16)
			                    .RotOrigin(0, 12, 0));
			RightLeg = BuildBox(MakeBoxBounds(0, 0, -2, 4, 12, 2)
			                    .TexOrigin(0, 16)
			                    .RotOrigin(0, 12, 0));
			LeftArm = BuildBox(MakeBoxBounds(-4, 12, -2, -8, 24, 2)
			                   .TexOrigin(40, 16)
			                   .RotOrigin(-6, 22, 0));
			RightArm = BuildBox(MakeBoxBounds(4, 12, -2, 8, 24, 2)
			                    .TexOrigin(40, 16)
			                    .RotOrigin(6, 22, 0));
		}

		public override float NameYOffset { get { return 2.075f; } }
		
		public override float GetEyeY(Entity entity) { return 26/16f; }
		
		public override Vector3 CollisionSize {
			get { return new Vector3(8/16f + 0.6f/16f, 28.1f/16f, 8/16f + 0.6f/16f); }
		}
		
		public override AABB PickingBounds {
			get { return new AABB(-4/16f, 0, -4/16f, 4/16f, 32/16f, 4/16f); }
		}
		
		protected override void DrawModel(Entity p) {
			game.Graphics.BindTexture(GetTexture(p.MobTextureId));
			DrawRotate(-p.HeadXRadians, 0, 0, Head, true);
			
			DrawPart(Torso);
			DrawRotate(p.anim.legXRot, 0, 0, LeftLeg, false);
			DrawRotate(-p.anim.legXRot, 0, 0, RightLeg, false);
			DrawRotate(90 * Utils.Deg2Rad, 0, p.anim.armZRot, LeftArm, false);
			DrawRotate(90 * Utils.Deg2Rad, 0, -p.anim.armZRot, RightArm, false);
			DrawRotate(-p.HeadXRadians, 0, 0, Hat, true);
			UpdateVB();
		}
		
		ModelPart Head, Hat, Torso, LeftLeg, RightLeg, LeftArm, RightArm;
	}
}