91 lines
2.7 KiB
C#

using System;
using System.Collections.Generic;
using System.Linq;
using ANX.Framework.NonXNA.Development;
// This file is part of the ANX.Framework created by the
// "ANX.Framework developer group" and released under the Ms-PL license.
// For details see: http://anxframework.codeplex.com/license
namespace ANX.Framework.Input
{
[PercentageComplete(100)]
[Developer("AstrorEnales")]
[TestState(TestStateAttribute.TestState.Tested)]
public struct KeyboardState
{
private readonly KeyState[] keyState;
public KeyState this[Keys key]
{
get { return keyState[(int)key]; }
}
public KeyboardState(params Keys[] keys)
{
keyState = new KeyState[255];
for (int i = 0; i < keys.Length; i++)
keyState[(int)keys[i]] = KeyState.Down;
}
public bool IsKeyDown(Keys key)
{
return keyState[(int)key] == KeyState.Down;
}
public bool IsKeyUp(Keys key)
{
return keyState[(int)key] == KeyState.Up;
}
public override int GetHashCode()
{
var results = new uint[8];
for (int index = 0; index < keyState.Length; index++)
if (keyState[index] == KeyState.Down)
{
uint num = 1u << index;
int resultIndex = index >> 5;
results[resultIndex] |= num & 4294967295u;
}
return results.Aggregate(0, (current, u) => current ^ u.GetHashCode());
}
public override bool Equals(object obj)
{
return obj is KeyboardState && this == (KeyboardState)obj;
}
public static bool operator ==(KeyboardState lhs, KeyboardState rhs)
{
return lhs.keyState.Length == rhs.keyState.Length && !lhs.keyState.Where((t, i) => t != rhs.keyState[i]).Any();
}
public static bool operator !=(KeyboardState lhs, KeyboardState rhs)
{
return lhs.keyState.Length != rhs.keyState.Length || lhs.keyState.Where((t, i) => t != rhs.keyState[i]).Any();
}
public Keys[] GetPressedKeys()
{
var result = new List<Keys>();
for (int i = 0; i < keyState.Length; ++i)
if (keyState[i] == KeyState.Down)
result.Add((Keys)i);
return result.ToArray();
}
internal void AddPressedKey(Keys key)
{
this.keyState[(int)key] = KeyState.Down;
}
internal void RemovePressedKey(Keys key)
{
this.keyState[(int)key] = KeyState.Up;
}
}
}