// ClassicalSharp copyright 2014-2016 UnknownShadow200 | Licensed under MIT
using System;
using ClassicalSharp.Entities;
using ClassicalSharp.GraphicsAPI;
using ClassicalSharp.Physics;
using OpenTK;

namespace ClassicalSharp.Model {

	public class ChibiModel : HumanoidModel {
		
		public ChibiModel(Game window) : base(window) { }
		
		const float size = 0.5f;
		protected override void MakeDescriptions() {
			base.MakeDescriptions();
			head = MakeBoxBounds(-4, 12, -4, 4, 20, 4).RotOrigin(0, 13, 0);
			torso = torso.Scale(size);
			lLeg = lLeg.Scale(size); rLeg = rLeg.Scale(size);
			lArm = lArm.Scale(size); rArm = rArm.Scale(size);
			offset = 0.5f * size;
		}

		public override float MaxScale { get { return 3; } }
		
		public override float ShadowScale { get { return 0.5f; } }
		
		public override float NameYOffset { get { return 20.2f/16; } }
		
		public override float GetEyeY(Entity entity) { return 14/16f; }
		
		public override Vector3 CollisionSize {
			get { return new Vector3(4/16f + 0.6f/16f, 20.1f/16f, 4/16f + 0.6f/16f); }
		}
		
		public override AABB PickingBounds {
			get { return new AABB(-4/16f, 0, -4/16f, 4/16f, 16/16f, 4/16f); }
		}
	}	

	public class HumanoidHeadModel : HumanoidModel {
		
		public HumanoidHeadModel(Game window) : base(window) { }
		
		public ModelPart Head, Hat;
		internal override void CreateParts() {
			vertices = new ModelVertex[boxVertices * 2];
			head = MakeBoxBounds(-4, 0, -4, 4, 8, 4).RotOrigin(0, 4, 0);
			
			Head = BuildBox(head.TexOrigin(0, 0));
			Hat = BuildBox(head.TexOrigin(32, 0).Expand(offset));
		}
		
		public override float NameYOffset { get { return 8/16f + 0.5f/16f; } }
		
		public override float GetEyeY(Entity entity) { return 6/16f; }
		
		public override Vector3 CollisionSize {
			get { return new Vector3(7.9f/16f, 7.9f/16f, 7.9f/16f); }
		}
		
		public override AABB PickingBounds {
			get { return new AABB(-4/16f, 0, -4/16f, 4/16f, 8/16f, 4/16f); }
		}

		protected override void RenderParts(Player p) {
			DrawHeadRotate(-p.PitchRadians, 0, 0, Head);
			UpdateVB();
			
			game.Graphics.AlphaTest = true;
			index = 0;
			DrawHeadRotate(-p.PitchRadians, 0, 0, Hat);
			UpdateVB();
		}
	}
}