internal static Joint Create(JointDef def)
{
Joint result = null;
switch (def.Type)
{
case JointType.RevoluteJoint:
{
result = new RevoluteJoint((RevoluteJointDef)def);
break;
}
case JointType.PrismaticJoint:
{
result = new PrismaticJoint((PrismaticJointDef)def);
break;
}
case JointType.DistanceJoint:
{
result = new DistanceJoint((DistanceJointDef)def);
break;
}
case JointType.PulleyJoint:
{
result = new PulleyJoint((PulleyJointDef)def);
break;
}
case JointType.MouseJoint:
{
result = new MouseJoint((MouseJointDef)def);
break;
}
case JointType.GearJoint:
{
result = new GearJoint((GearJointDef)def);
break;
}
case JointType.LineJoint:
{
result = new LineJoint((LineJointDef)def);
break;
}
default:
{
Box2DXDebug.Assert(false);
break;
}
}
return(result);
}
internal static Joint Create(JointDef def)
{
Joint joint = null;
switch (def.Type)
{
case JointType.DistanceJoint:
{
joint = new DistanceJoint((DistanceJointDef)def);
}
break;
case JointType.MouseJoint:
{
joint = new MouseJoint((MouseJointDef)def);
}
break;
case JointType.PrismaticJoint:
{
joint = new PrismaticJoint((PrismaticJointDef)def);
}
break;
case JointType.RevoluteJoint:
{
joint = new RevoluteJoint((RevoluteJointDef)def);
}
break;
case JointType.PulleyJoint:
{
joint = new PulleyJoint((PulleyJointDef)def);
}
break;
case JointType.GearJoint:
{
joint = new GearJoint((GearJointDef)def);
}
break;
default:
Box2DXDebug.Assert(false);
break;
}
return(joint);
}
public Gears()
{
Body ground = null;
{
BodyDef bd = new BodyDef();
ground = _world.CreateBody(bd);
PolygonShape shape = new PolygonShape();
shape.SetAsEdge(new Vec2(50.0f, 0.0f), new Vec2(-50.0f, 0.0f));
ground.CreateFixture(shape, 0);
}
{
CircleShape circle1 = new CircleShape();
circle1._radius = 1.0f;
CircleShape circle2 = new CircleShape();
circle2._radius = 2.0f;
PolygonShape box = new PolygonShape();
box.SetAsBox(0.5f, 5.0f);
BodyDef bd1 = new BodyDef();
bd1.Position.Set(-3.0f, 12.0f);
Body body1 = _world.CreateBody(bd1);
body1.CreateFixture(circle1, 5.0f);
RevoluteJointDef jd1 = new RevoluteJointDef();
jd1.Body1 = ground;
jd1.Body2 = body1;
jd1.LocalAnchor1 = ground.GetLocalPoint(bd1.Position);
jd1.LocalAnchor2 = body1.GetLocalPoint(bd1.Position);
jd1.ReferenceAngle = body1.GetAngle() - ground.GetAngle();
_joint1 = (RevoluteJoint)_world.CreateJoint(jd1);
BodyDef bd2 = new BodyDef();
bd2.Position.Set(0.0f, 12.0f);
Body body2 = _world.CreateBody(bd2);
body2.CreateFixture(circle2, 5.0f);
RevoluteJointDef jd2 = new RevoluteJointDef();
jd2.Initialize(ground, body2, bd2.Position);
_joint2 = (RevoluteJoint)_world.CreateJoint(jd2);
BodyDef bd3 = new BodyDef();
bd3.Position.Set(2.5f, 12.0f);
Body body3 = _world.CreateBody(bd3);
body3.CreateFixture(box, 5.0f);
PrismaticJointDef jd3 = new PrismaticJointDef();
jd3.Initialize(ground, body3, bd3.Position, new Vec2(0.0f, 1.0f));
jd3.LowerTranslation = -5.0f;
jd3.UpperTranslation = 5.0f;
jd3.EnableLimit = true;
_joint3 = (PrismaticJoint)_world.CreateJoint(jd3);
GearJointDef jd4 = new GearJointDef();
jd4.Body1 = body1;
jd4.Body2 = body2;
jd4.Joint1 = _joint1;
jd4.Joint2 = _joint2;
jd4.Ratio = circle2._radius / circle1._radius;
_joint4 = (GearJoint)_world.CreateJoint(jd4);
GearJointDef jd5 = new GearJointDef();
jd5.Body1 = body2;
jd5.Body2 = body3;
jd5.Joint1 = _joint2;
jd5.Joint2 = _joint3;
jd5.Ratio = -1.0f / circle2._radius;
_joint5 = (GearJoint)_world.CreateJoint(jd5);
}
}
internal static Joint Create(JointDef def)
{
Joint result = null;
switch (def.Type)
{
case JointType.RevoluteJoint:
{
result = new RevoluteJoint((RevoluteJointDef)def);
break;
}
case JointType.PrismaticJoint:
{
result = new PrismaticJoint((PrismaticJointDef)def);
break;
}
case JointType.DistanceJoint:
{
result = new DistanceJoint((DistanceJointDef)def);
break;
}
case JointType.PulleyJoint:
{
result = new PulleyJoint((PulleyJointDef)def);
break;
}
case JointType.MouseJoint:
{
result = new MouseJoint((MouseJointDef)def);
break;
}
case JointType.GearJoint:
{
result = new GearJoint((GearJointDef)def);
break;
}
case JointType.LineJoint:
{
result = new LineJoint((LineJointDef)def);
break;
}
default:
{
Box2DXDebug.Assert(false);
break;
}
}
return result;
}
