using OpenTK;
using OpenTK.Input;
using StgSharp_Entity;
using StgSharp_Logic;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;

namespace StgSharp_Entity
{
    internal class Player:LinkedTarget
    {
		private uint gameTick;
		private uint beginTick;

		private readonly float _velocityHigh;
		private readonly float _vHighCorner;

		public float VelocityHigh
		{
			get { return _velocityHigh; }
		}

		private readonly float _velocityLow;
		private readonly float _vLowCorner;

		public float VelocityLow
		{
			get { return _velocityLow; }
		}

		private float _xLocation;

		public float XLocation
		{
			get { return _xLocation; }
			set { _xLocation = value; }
		}

		public float _yLocation;
		public float YLocation
		{
			get { return _yLocation; }
			set { _yLocation = value; }
		}

		private KeyboardState _keyboardState;

		public KeyboardState KeyboardState
		{
			get { return _keyboardState; }
			set { _keyboardState = value; }
		}


		public Player(float velocityHigh,float velocityLow,KeyboardState keyboardState)
		{
			this._velocityHigh = velocityHigh;
			this._vHighCorner = velocityHigh / 1.4142136f;
			this._velocityLow = velocityLow;
			this._vLowCorner = velocityLow / 1.4142136f;
			this._keyboardState = keyboardState;
		}


		
		public void Action()
		{
			if (_keyboardState.IsAnyKeyDown)
			{
				Move();

			}
		}

		/// <summary>
		/// 自机移动的简单方法
		/// </summary>
		public void Move()
		{
			if (_keyboardState.IsKeyDown(Key.ShiftLeft))
			{
				if (_keyboardState.IsKeyDown(Key.Up))
				{
					if (_keyboardState.IsKeyDown(Key.Left))
					{
						this._yLocation += _vLowCorner;
						this._xLocation -= _vLowCorner;
					}
					else if (_keyboardState.IsKeyDown(Key.Right))
					{
                        this._yLocation += _vLowCorner;
                        this._xLocation += _vLowCorner;
                    }
					else
					{
						this._yLocation += _velocityLow;
					}
                }
				else if (_keyboardState.IsKeyDown(Key.Down))
				{
                    if (_keyboardState.IsKeyDown(Key.Left))
                    {
                        this._yLocation -= _vLowCorner;
                        this._xLocation -= _vLowCorner;
                    }
                    else if (_keyboardState.IsKeyDown(Key.Right))
                    {
                        this._yLocation -= _vLowCorner;
                        this._xLocation += _vLowCorner;
                    }
                    else
                    {
                        this._yLocation -= _velocityLow;
                    }

                }
            }
			else
			{
                if (_keyboardState.IsKeyDown(Key.Up))
                {
                    if (_keyboardState.IsKeyDown(Key.Left))
                    {
                        this._yLocation += _vHighCorner;
                        this._xLocation -= _vHighCorner;
                    }
                    else if (_keyboardState.IsKeyDown(Key.Right))
                    {
                        this._yLocation += _vHighCorner;
                        this._xLocation += _vHighCorner;
                    }
                    else
                    {
                        this._yLocation += _velocityHigh;
                    }
                }
                else if (_keyboardState.IsKeyDown(Key.Down))
                {
                    if (_keyboardState.IsKeyDown(Key.Left))
                    {
                        this._yLocation -= _vHighCorner;
                        this._xLocation -= _vHighCorner;
                    }
                    else if (_keyboardState.IsKeyDown(Key.Right))
                    {
                        this._yLocation -= _vHighCorner;
                        this._xLocation += _vHighCorner;
                    }
                    else
                    {
                        this._yLocation -= _velocityHigh;
                    }

                }

            }
        }

		public void UseSkill(KeyboardState key)
		{
			if (key.IsKeyDown(Key.X))
			{

			}
		}

		public void LaunchBullet(KeyboardState key)
		{
			
		}
		
		public void Die()
		{
			
		}
	}
}