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Segment.cs
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Segment.cs
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/*
* Copyright (c) 2023 Codefoco (codefoco@codefoco.com)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
using System.ComponentModel;
namespace Tizen.NUI.Physics2D.Chipmunk
{
/// <summary>
/// A line segment shape between two points, which is mainly useful when it behaves statically,
/// though it can be beveled to give it thickness.
/// </summary>
[EditorBrowsable(EditorBrowsableState.Never)]
public class Segment : Shape
{
/// <summary>
/// Create a line segment.
/// </summary>
/// <param name="body">The body to attach the segment to.</param>
/// <param name="a">The first endpoint of the segment.</param>
/// <param name="b">The second endpoint of the segment.</param>
/// <param name="radius">The thickness of the segment.</param>
[EditorBrowsable(EditorBrowsableState.Never)]
public Segment(Body body, Vect a, Vect b, double radius)
: base(NativeMethods.cpSegmentShapeNew(body.Handle, a, b, radius))
{
}
/// <summary>
/// Let Chipmunk know about the geometry of adjacent segments to avoid colliding with endcaps.
/// </summary>
[EditorBrowsable(EditorBrowsableState.Never)]
public void SetNeighbors(Vect prev, Vect next)
{
NativeMethods.cpSegmentShapeSetNeighbors(Handle, prev, next);
}
/// <summary>
/// Get the first endpoint of the segment shape.
/// </summary>
[EditorBrowsable(EditorBrowsableState.Never)]
public Vect A => NativeMethods.cpSegmentShapeGetA(Handle);
/// <summary>
/// Get the second endpoint of the segment shape.
/// </summary>
[EditorBrowsable(EditorBrowsableState.Never)]
public Vect B => NativeMethods.cpSegmentShapeGetB(Handle);
/// <summary>
/// Get the normal of the segment shape.
/// </summary>
[EditorBrowsable(EditorBrowsableState.Never)]
public Vect Normal => NativeMethods.cpSegmentShapeGetNormal(Handle);
/// <summary>
/// Get the segment radius.
/// </summary>
[EditorBrowsable(EditorBrowsableState.Never)]
public double Radius => NativeMethods.cpSegmentShapeGetRadius(Handle);
/// <summary>
/// Calculate the area of the segment, assuming a thickness has been provided. The area is
/// calculated assuming the endpoints would be rounded, like a capsule.
/// </summary>
[EditorBrowsable(EditorBrowsableState.Never)]
public new double Area => AreaForSegment(A, B, Radius);
/// <summary>
/// Calculate the moment of inertia of the segment.
/// </summary>
[EditorBrowsable(EditorBrowsableState.Never)]
public double MomentForMass(double mass)
{
return MomentForSegment(mass, A, B, Radius);
}
/// <summary>
/// Calculate the moment of inertia for the line segment.
/// </summary>
[EditorBrowsable(EditorBrowsableState.Never)]
public static double MomentForSegment(double mass, Vect a, Vect b, double radius)
{
return NativeMethods.cpMomentForSegment(mass, a, b, radius);
}
/// <summary>
/// Calculate the area of a segment, assuming a thickness has been provided. The area is
/// calculated assuming the endpoints would be rounded, like a capsule.
/// </summary>
[EditorBrowsable(EditorBrowsableState.Never)]
public static double AreaForSegment(Vect a, Vect b, double radius)
{
return NativeMethods.cpAreaForSegment(a, b, radius);
}
}
}