mirror of
https://github.com/Facepunch/sbox-public.git
synced 2026-01-02 11:28:19 -05:00
71f266059a
This commit imports the C# engine code and game files, excluding C++ source code. [Source-Commit: ceb3d758046e50faa6258bc3b658a30c97743268]
129 lines
2.8 KiB
C#
129 lines
2.8 KiB
C#
namespace Sandbox;
|
|
|
|
/// <summary>
|
|
/// Weld two physics objects together
|
|
/// </summary>
|
|
[Expose]
|
|
[Title( "Fixed Joint" )]
|
|
[Category( "Physics" )]
|
|
[Icon( "join_inner" )]
|
|
[EditorHandle( "materials/gizmo/pinned.png" )]
|
|
public sealed class FixedJoint : Joint
|
|
{
|
|
[Property, Title( "Frequency" ), Group( "Linear" )]
|
|
public float LinearFrequency
|
|
{
|
|
get;
|
|
set
|
|
{
|
|
if ( value == field )
|
|
return;
|
|
|
|
field = value;
|
|
|
|
if ( _joint.IsValid() )
|
|
{
|
|
_joint.SpringLinear = new PhysicsSpring( field, LinearDamping );
|
|
_joint.WakeBodies();
|
|
}
|
|
}
|
|
} = 10;
|
|
|
|
[Property, Title( "Damping" ), Group( "Linear" )]
|
|
public float LinearDamping
|
|
{
|
|
get;
|
|
set
|
|
{
|
|
if ( value == field )
|
|
return;
|
|
|
|
field = value;
|
|
|
|
if ( _joint.IsValid() )
|
|
{
|
|
_joint.SpringLinear = new PhysicsSpring( LinearFrequency, field );
|
|
_joint.WakeBodies();
|
|
}
|
|
}
|
|
} = 1;
|
|
|
|
[Property, Title( "Frequency" ), Group( "Angular" )]
|
|
public float AngularFrequency
|
|
{
|
|
get;
|
|
set
|
|
{
|
|
if ( value == field )
|
|
return;
|
|
|
|
field = value;
|
|
|
|
if ( _joint.IsValid() )
|
|
{
|
|
_joint.SpringAngular = new PhysicsSpring( field, AngularDamping );
|
|
_joint.WakeBodies();
|
|
}
|
|
}
|
|
} = 10;
|
|
|
|
[Property, Title( "Damping" ), Group( "Angular" )]
|
|
public float AngularDamping
|
|
{
|
|
get;
|
|
set
|
|
{
|
|
if ( value == field )
|
|
return;
|
|
|
|
field = value;
|
|
|
|
if ( _joint.IsValid() )
|
|
{
|
|
_joint.SpringAngular = new PhysicsSpring( AngularFrequency, field );
|
|
_joint.WakeBodies();
|
|
}
|
|
}
|
|
} = 1;
|
|
|
|
Physics.FixedJoint _joint;
|
|
|
|
protected override PhysicsJoint CreateJoint( PhysicsPoint point1, PhysicsPoint point2 )
|
|
{
|
|
var localFrame1 = LocalFrame1;
|
|
var localFrame2 = LocalFrame2;
|
|
|
|
if ( Attachment == AttachmentMode.Auto )
|
|
{
|
|
// Anchor point is the midpoint between the two world-space attachment points.
|
|
var anchor = 0.5f * (point1.Transform.Position + point2.Transform.Position);
|
|
|
|
// Convert anchor to body1's local space.
|
|
localFrame1 = new Transform( point1.Body.Transform.PointToLocal( anchor ) );
|
|
|
|
// Convert anchor to body2's local space and apply the rotation offset from body2 to body1,
|
|
// so the joint preserves their initial relative orientation.
|
|
localFrame2 = new Transform( point2.Body.Transform.PointToLocal( anchor ), point2.Body.Rotation.Conjugate * point1.Body.Rotation );
|
|
}
|
|
|
|
if ( !Scene.IsEditor )
|
|
{
|
|
LocalFrame1 = localFrame1;
|
|
LocalFrame2 = localFrame2;
|
|
|
|
Attachment = AttachmentMode.LocalFrames;
|
|
}
|
|
|
|
point1 = new PhysicsPoint( point1.Body, localFrame1.Position, localFrame1.Rotation );
|
|
point2 = new PhysicsPoint( point2.Body, localFrame2.Position, localFrame2.Rotation );
|
|
|
|
_joint = PhysicsJoint.CreateFixed( point1, point2 );
|
|
_joint.SpringLinear = new PhysicsSpring( LinearFrequency, LinearDamping );
|
|
_joint.SpringAngular = new PhysicsSpring( AngularFrequency, AngularDamping );
|
|
|
|
_joint.WakeBodies();
|
|
|
|
return _joint;
|
|
}
|
|
}
|