public static FixedDistanceJoint CreateFixedDistanceJoint(World world, Body body, Vector2 localAnchor, Vector2 worldAnchor)
{
FixedDistanceJoint distanceJoint = new FixedDistanceJoint(body, localAnchor, worldAnchor);
world.AddJoint(distanceJoint);
return(distanceJoint);
}
internal override void UpdateJoint()
{
base.UpdateJoint();
if (this.joint == null)
{
return;
}
FixedDistanceJoint j = this.joint as FixedDistanceJoint;
j.WorldAnchorB = PhysicsConvert.ToPhysicalUnit(this.worldAnchor);
j.LocalAnchorA = GetFarseerPoint(this.BodyA, this.localAnchor);
j.DampingRatio = this.dampingRatio;
j.Frequency = this.frequency;
j.Length = PhysicsConvert.ToPhysicalUnit(this.length);
}
public void LoadStatics()
{
JointFactory.CreateFixedRevoluteJoint(
Platform.Instance.PhysicsWorld,
GameWorldManager.Instance.GetEntity("bridge").PhysicsEntity.GetBody("FloorBody"),
UnitsConverter.ToSimUnits(new Vector2(-120f, 0f)),
UnitsConverter.ToSimUnits(new Vector2(2040f + 60f * 16, -43))
);
FixedDistanceJoint dj = JointFactory.CreateFixedDistanceJoint(
Platform.Instance.PhysicsWorld,
GameWorldManager.Instance.GetEntity("bridge").PhysicsEntity.GetBody("FloorBody"),
UnitsConverter.ToSimUnits(new Vector2(120f, -5f)),
UnitsConverter.ToSimUnits(new Vector2(2040f + 60f * 20, -180f))
);
dj.Frequency = 2f;
dj.DampingRatio = 0.4f;
}
public void LoadSemiStatics()
{
GameWorldManager.Instance.GetEntity("button1").RegisterComponent(
"active",
new ButtonComponent("ButtonJoint1")
);
GameWorldManager.Instance.GetEntity("button0").RegisterComponent(
"active",
new ButtonComponent("ButtonJoint1", false, true)
);
GameWorldManager.Instance.GetEntity("lifteddoor0").RegisterComponent(
"doorHandle",
new LiftedDoorComponent(GameWorldManager.Instance.GetEntity("button1").GetComponent("active"), "DoorJoint1")
);
_gravityButton = GameWorldManager.Instance.GetEntity("button0").GetComponent("active") as ButtonComponent;
JointFactory.CreateFixedRevoluteJoint(
Platform.Instance.PhysicsWorld,
GameWorldManager.Instance.GetEntity("floorbridge0").PhysicsEntity.GetBody("FloorBody"),
UnitsConverter.ToSimUnits(new Vector2(120f, 0f)),
UnitsConverter.ToSimUnits(new Vector2(2689f, 564))
);
FixedDistanceJoint dj = JointFactory.CreateFixedDistanceJoint(
Platform.Instance.PhysicsWorld,
GameWorldManager.Instance.GetEntity("floorbridge0").PhysicsEntity.GetBody("FloorBody"),
UnitsConverter.ToSimUnits(new Vector2(-120f, -5f)),
UnitsConverter.ToSimUnits(new Vector2(2466f, 244f))
);
dj.Frequency = 1.5f;
dj.DampingRatio = 0.355f;
}
private WebTest()
{
World.JointRemoved += JointRemovedFired;
World.BodyRemoved += BodyRemovedFired;
{
PolygonShape shape = new PolygonShape(5);
shape.SetAsBox(0.5f, 0.5f);
_bodies[0] = BodyFactory.CreateBody(World);
_bodies[0].BodyType = BodyType.Dynamic;
_bodies[0].Position = new Vector2(-5.0f, 5.0f);
_bodies[0].CreateFixture(shape);
_bodies[1] = BodyFactory.CreateBody(World);
_bodies[1].BodyType = BodyType.Dynamic;
_bodies[1].Position = new Vector2(5.0f, 5.0f);
_bodies[1].CreateFixture(shape);
_bodies[2] = BodyFactory.CreateBody(World);
_bodies[2].BodyType = BodyType.Dynamic;
_bodies[2].Position = new Vector2(5.0f, 15.0f);
_bodies[2].CreateFixture(shape);
_bodies[3] = BodyFactory.CreateBody(World);
_bodies[3].BodyType = BodyType.Dynamic;
_bodies[3].Position = new Vector2(-5.0f, 15.0f);
_bodies[3].CreateFixture(shape);
FixedDistanceJoint dj = new FixedDistanceJoint(_bodies[0], new Vector2(-0.5f, -0.5f),
new Vector2(-10.0f, 0.0f));
_joints[0] = dj;
dj.Frequency = 2.0f;
dj.DampingRatio = 0.0f;
World.AddJoint(_joints[0]);
FixedDistanceJoint dj1 = new FixedDistanceJoint(_bodies[1], new Vector2(0.5f, -0.5f),
new Vector2(10.0f, 0.0f));
_joints[1] = dj1;
dj1.Frequency = 2.0f;
dj1.DampingRatio = 0.0f;
World.AddJoint(_joints[1]);
FixedDistanceJoint dj2 = new FixedDistanceJoint(_bodies[2], new Vector2(0.5f, 0.5f),
new Vector2(10.0f, 20.0f));
_joints[2] = dj2;
dj2.Frequency = 2.0f;
dj2.DampingRatio = 0.0f;
World.AddJoint(_joints[2]);
FixedDistanceJoint dj3 = new FixedDistanceJoint(_bodies[3], new Vector2(-0.5f, 0.5f),
new Vector2(-10.0f, 20.0f));
_joints[3] = dj3;
dj3.Frequency = 2.0f;
dj3.DampingRatio = 0.0f;
World.AddJoint(_joints[3]);
DistanceJoint dj4 = new DistanceJoint(_bodies[0], _bodies[1], Vector2.Zero,
Vector2.Zero);
_joints[4] = dj4;
dj4.Frequency = 2.0f;
dj4.DampingRatio = 0.0f;
World.AddJoint(_joints[4]);
DistanceJoint dj5 = new DistanceJoint(_bodies[1], _bodies[2], Vector2.Zero,
Vector2.Zero);
_joints[5] = dj5;
dj5.Frequency = 2.0f;
dj5.DampingRatio = 0.0f;
World.AddJoint(_joints[5]);
DistanceJoint dj6 = new DistanceJoint(_bodies[2], _bodies[3], Vector2.Zero,
Vector2.Zero);
_joints[6] = dj6;
dj6.Frequency = 2.0f;
dj6.DampingRatio = 0.0f;
World.AddJoint(_joints[6]);
DistanceJoint dj7 = new DistanceJoint(_bodies[3], _bodies[0], Vector2.Zero,
Vector2.Zero);
_joints[7] = dj7;
dj7.Frequency = 2.0f;
dj7.DampingRatio = 0.0f;
World.AddJoint(_joints[7]);
}
}
public Spiderweb(World world, Vector2 position, float radius, int rings, int sides)
{
const float breakpoint = 100f;
_world = world;
_radius = radius;
List <List <Body> > ringBodys = new List <List <Body> >(rings);
for (int i = 1; i < rings; ++i)
{
Vertices vertices = PolygonTools.CreateCircle(i * 2.9f, sides);
List <Body> bodies = new List <Body>(sides);
//Create the first goo
Body prev = BodyFactory.CreateCircle(world, radius, 0.2f, vertices[0]);
prev.FixedRotation = true;
prev.Position += position;
prev.BodyType = BodyType.Dynamic;
bodies.Add(prev);
//Connect the first goo to the next
for (int j = 1; j < vertices.Count; ++j)
{
Body bod = BodyFactory.CreateCircle(world, radius, 0.2f, vertices[j]);
bod.FixedRotation = true;
bod.BodyType = BodyType.Dynamic;
bod.Position += position;
DistanceJoint dj = JointFactory.CreateDistanceJoint(world, prev, bod, Vector2.Zero, Vector2.Zero);
dj.Frequency = 4.0f;
dj.DampingRatio = 0.5f;
dj.Breakpoint = breakpoint;
prev = bod;
bodies.Add(bod);
}
//Connect the first and the last box
DistanceJoint djEnd = JointFactory.CreateDistanceJoint(world, bodies[0], bodies[bodies.Count - 1],
Vector2.Zero, Vector2.Zero);
djEnd.Frequency = 4.0f;
djEnd.DampingRatio = 0.5f;
djEnd.Breakpoint = breakpoint;
ringBodys.Add(bodies);
}
//Create an outer ring
Vertices lastRing = PolygonTools.CreateCircle(rings * 2.9f, sides);
lastRing.Translate(ref position);
List <Body> lastRingFixtures = ringBodys[ringBodys.Count - 1];
//Fix each of the fixtures of the outer ring
for (int j = 0; j < lastRingFixtures.Count; ++j)
{
FixedDistanceJoint fdj = JointFactory.CreateFixedDistanceJoint(world, lastRingFixtures[j], Vector2.Zero,
lastRing[j]);
fdj.Frequency = 4.0f;
fdj.DampingRatio = 0.5f;
fdj.Breakpoint = breakpoint;
}
//Interconnect the rings
for (int i = 1; i < ringBodys.Count; i++)
{
List <Body> prev = ringBodys[i - 1];
List <Body> current = ringBodys[i];
for (int j = 0; j < prev.Count; j++)
{
Body prevFixture = prev[j];
Body currentFixture = current[j];
DistanceJoint dj = JointFactory.CreateDistanceJoint(world, prevFixture, currentFixture, Vector2.Zero,
Vector2.Zero);
dj.Frequency = 4.0f;
dj.DampingRatio = 0.5f;
}
}
}
