MonoGame.Samples/StarWarrior/Core/Components/VelocityComponent.cs

#region File description

// --------------------------------------------------------------------------------------------------------------------
// <copyright file="VelocityComponent.cs" company="GAMADU.COM">
//     Copyright © 2013 GAMADU.COM. All rights reserved.
//
//     Redistribution and use in source and binary forms, with or without modification, are
//     permitted provided that the following conditions are met:
//
//        1. Redistributions of source code must retain the above copyright notice, this list of
//           conditions and the following disclaimer.
//
//        2. Redistributions in binary form must reproduce the above copyright notice, this list
//           of conditions and the following disclaimer in the documentation and/or other materials
//           provided with the distribution.
//
//     THIS SOFTWARE IS PROVIDED BY GAMADU.COM 'AS IS' AND ANY EXPRESS OR IMPLIED
//     WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
//     FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GAMADU.COM OR
//     CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
//     CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
//     SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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//     The views and conclusions contained in the software and documentation are those of the
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// </copyright>
// <summary>
//   The velocity.
// </summary>
// --------------------------------------------------------------------------------------------------------------------
#endregion File description

namespace StarWarrior.Components
{
    #region Using statements

    using System;

    using Artemis.Interface;

    #endregion

    /// <summary>The velocity.</summary>
    internal class VelocityComponent : IComponent
    {
        /// <summary>To radians.</summary>
        private const float ToRadians = (float)(Math.PI / 180.0);

        /// <summary>Initializes a new instance of the <see cref="VelocityComponent" /> class.</summary>
        public VelocityComponent()
            : this(0.0f, 0.0f)
        {
        }

        /// <summary>Initializes a new instance of the <see cref="VelocityComponent" /> class.</summary>
        /// <param name="velocity">The velocity.</param>
        public VelocityComponent(float velocity)
            : this(velocity, 0.0f)
        {
        }

        /// <summary>Initializes a new instance of the <see cref="VelocityComponent" /> class.</summary>
        /// <param name="velocity">The velocity.</param>
        /// <param name="angle">The angle.</param>
        public VelocityComponent(float velocity, float angle)
        {
            this.Speed = velocity;
            this.Angle = angle;
        }

        /// <summary>Gets or sets the angle.</summary>
        /// <value>The angle.</value>
        public float Angle { get; set; }

        /// <summary>Gets the angle as radians.</summary>
        /// <value>The angle as radians.</value>
        public float AngleAsRadians
        {
            get
            {
                return this.Angle * ToRadians;
            }
        }

        /// <summary>Gets or sets the speed.</summary>
        /// <value>The speed.</value>
        public float Speed { get; set; }

        /// <summary>The add angle.</summary>
        /// <param name="angle">The angle.</param>
        public void AddAngle(float angle)
        {
            this.Angle = (this.Angle + angle) % 360;
        }
    }
}