/**
* Creates a new circle object.
*/
public CircleObject(World world, string texturename, float density, float friction, float restitution,float myScale)
: base(world)
{
textureName = texturename;
// Initialize
this.texture = GameEngine.TextureList[texturename];
TextureFilename = texturename;
Width = texture.Width * myScale;
Height = Width;
scale = myScale;
// Determine dimension
float radius = (float)texture.Width / (2 * CASSWorld.SCALE) * scale;
// Create collision shape
CircleDef shape = new CircleDef();
shape.Radius = radius;
shape.Density = density;
shape.Friction = friction;
shape.Restitution = restitution;
shapes.Add(shape);
}
public (Body, Drawable) ToBody(World world)
{
var circleBody = world.CreateBody(new BodyDef {
Position = new Vec2(PosX, PosY),
FixedRotation = true,
});
var circleDef = new CircleDef
{
Radius = Radius,
Density = Density,
Friction = Friction,
};
circleBody.CreateShape(circleDef);
var drawable = new CircleDrawable(
circleBody,
System.Windows.Media.Color.FromRgb(
(byte)(Friction * 255.0f),
80,
(byte)(Density * 255.0f)),
circleDef);
circleBody.SetMassFromShapes();
return(circleBody, drawable);
}
public void AddCircle(float x, float y, float radius, float angle, float density,
float friction, float restetution, float mass, bool IsBullet = true,
bool IsSensor = false, bool AllowSleep = false, short group_index = 1, Object userDate = null)
{
BodyDef bDef = new BodyDef();
bDef.Position.Set(x / metric, y / metric);
bDef.Angle = angle;
bDef.AllowSleep = AllowSleep;
bDef.IsBullet = IsBullet;
CircleDef pDef = new CircleDef();
pDef.Restitution = restetution;
pDef.Friction = friction;
pDef.Density = density;
pDef.Radius = radius / metric;
pDef.Filter.GroupIndex = group_index;
pDef.IsSensor = IsSensor;
Body body = world.CreateBody(bDef);
body.CreateShape(pDef);
body.SetMassFromShapes();
float Inertia = body.GetInertia();
MassData md = new MassData();
md.I = Inertia;
md.Mass = mass;
body.SetMass(md);
}
public VaryingRestitution()
{
{
PolygonDef sd = new PolygonDef();
sd.SetAsBox(50.0f, 10.0f);
BodyDef bd = new BodyDef();
bd.Position.Set(0.0f, -10.0f);
Body ground = _world.CreateBody(bd);
ground.CreateShape(sd);
}
{
CircleDef sd = new CircleDef();
sd.Radius = 1.0f;
sd.Density = 1.0f;
float[] restitution = new float[7] {
0.0f, 0.1f, 0.3f, 0.5f, 0.75f, 0.9f, 1.0f
};
for (int i = 0; i < 7; ++i)
{
BodyDef bd = new BodyDef();
bd.Position.Set(-10.0f + 3.0f * i, 20.0f);
Body body = _world.CreateBody(bd);
sd.Restitution = restitution[i];
body.CreateShape(sd);
body.SetMassFromShapes();
}
}
}
public virtual void SetupPhysics(World world)
{
float angle = Object.EulerAngles.z;
angle = angle * Mathf.Deg2Rad;
bodyDef = new BodyDef();
bodyDef.Position.Set(Object.Position.x, Object.Position.y);
bodyDef.Angle = angle;
circleDef = new CircleDef();
circleDef.Restitution = 0.2f;
circleDef.Friction = 0.3f;
circleDef.Density = 0.5f;
circleDef.Radius = Mathf.Max(Object.Size.x / 3f, Object.Size.y / 3f, Object.Size.z / 3f);
body = world.CreateBody(bodyDef);
while (body == null)
{
body = world.CreateBody(bodyDef);
}
body.CreateShape(circleDef);
body.SetMassFromShapes();
body.SetUserData(this);
this.world = world;
}
public void Reset()
{
if (b2Body != null)
{
refWorld.B2World.DestroyBody(b2Body);
b2Body.Dispose();
}
b2BodyDef = new BodyDef();
b2CircleDef = new CircleDef();
b2BodyDef.Angle = Angle / 180.0f * 3.14f;
b2BodyDef.Position = PhysicalConvert.Tob2Vector(Position);
b2CircleDef.Radius = PhysicalConvert.Tob2Single(OuterDiameter / 2.0f);
b2CircleDef.Density = Density;
b2CircleDef.Restitution = Restitution;
b2CircleDef.Friction = Friction;
b2CircleDef.Filter = new FilterData()
{
GroupIndex = GroupIndex,
CategoryBits = CategoryBits,
MaskBits = MaskBits
};
b2Body = refWorld.B2World.CreateBody(b2BodyDef);
b2Body.CreateFixture(b2CircleDef);
if (physicalShapeType == PhysicalShapeType.Dynamic)
{
b2Body.SetMassFromShapes();
}
}
public override void Keyboard(System.Windows.Forms.Keys key)
{
switch (key)
{
case System.Windows.Forms.Keys.C:
if (_shape2 == null)
{
CircleDef sd = new CircleDef();
sd.Radius = 3.0f;
sd.Density = 10.0f;
sd.LocalPosition.Set(0.5f, -4.0f);
_shape2 = _body.CreateShape(sd);
_body.SetMassFromShapes();
_body.WakeUp();
}
break;
case System.Windows.Forms.Keys.D:
if (_shape2 != null)
{
_body.DestroyShape(_shape2);
_shape2 = null;
_body.SetMassFromShapes();
_body.WakeUp();
}
break;
}
}
public override void Keyboard(System.Windows.Forms.Keys key)
{
switch (key)
{
case System.Windows.Forms.Keys.B:
if (_bullet != null)
{
_world.DestroyBody(_bullet);
_bullet = null;
}
{
CircleDef sd = new CircleDef();
sd.Density = 20.0f;
sd.Radius = 0.25f;
sd.Restitution = 0.05f;
BodyDef bd = new BodyDef();
bd.IsBullet = true;
bd.Position.Set(-31.0f, 5.0f);
_bullet = _world.CreateBody(bd);
_bullet.CreateFixture(sd);
_bullet.SetMassFromShapes();
_bullet.SetLinearVelocity(new Vec2(400.0f, 0.0f));
}
break;
}
}
void LaunchBomb()
{
if (bomb != null)
{
world.DestroyBody(bomb);
bomb = null;
}
BodyDef bd = new BodyDef();
bd.BodyType = BodyType.e_dynamicBody;
bd.AllowSleep = true;
Random rand = new Random();
bd.Position = new Vector((float)rand.NextDouble() * 30 - 15, 30.0f);
bd.IsBullet = true;
bomb = world.CreateBody(bd);
bomb.LinearVelocity = bd.Position * -5;
CircleDef sd = new CircleDef();
sd.Radius = 0.3f;
sd.Density = 20.0f;
sd.Restitution = 0.1f;
bomb.CreateShape(sd);
bomb.SetMassFromShapes();
}
public override void Keyboard(System.Windows.Forms.Keys key)
{
switch (key)
{
case System.Windows.Forms.Keys.C:
if (_shape2 == null)
{
CircleDef sd = new CircleDef();
sd.Radius = 3.0f;
sd.Density = 10.0f;
sd.LocalPosition.Set(0.5f, -4.0f);
_shape2 = _body.CreateShape(sd);
_body.SetMassFromShapes();
_body.WakeUp();
}
break;
case System.Windows.Forms.Keys.D:
if (_shape2 != null)
{
_body.DestroyShape(_shape2);
_shape2 = null;
_body.SetMassFromShapes();
_body.WakeUp();
}
break;
}
}
public void LaunchBomb()
{
if (_bomb != null)
{
_world.DestroyBody(_bomb);
_bomb = null;
}
BodyDef bd = new BodyDef();
bd.AllowSleep = true;
bd.Position.Set(Box2DNet.Common.Math.Random(-15.0f, 15.0f), 30.0f);
bd.IsBullet = true;
_bomb = _world.CreateBody(bd);
_bomb.SetLinearVelocity(-5.0f * bd.Position);
CircleDef sd = new CircleDef();
sd.Radius = 0.3f;
sd.Density = 20.0f;
sd.Restitution = 0.1f;
_bomb.CreateFixture(sd);
_bomb.SetMassFromShapes();
}
public VaryingRestitution()
{
{
PolygonDef sd = new PolygonDef();
sd.SetAsBox(50.0f, 10.0f);
BodyDef bd = new BodyDef();
bd.Position.Set(0.0f, -10.0f);
Body ground = _world.CreateBody(bd);
ground.CreateShape(sd);
}
{
CircleDef sd = new CircleDef();
sd.Radius = 1.0f;
sd.Density = 1.0f;
float[] restitution = new float[7] { 0.0f, 0.1f, 0.3f, 0.5f, 0.75f, 0.9f, 1.0f };
for (int i = 0; i < 7; ++i)
{
BodyDef bd = new BodyDef();
bd.Position.Set(-10.0f + 3.0f * i, 20.0f);
Body body = _world.CreateBody(bd);
sd.Restitution = restitution[i];
body.CreateShape(sd);
body.SetMassFromShapes();
}
}
}
public MyModel3D AddCircle(float x, float y, float radius, float angle, float density,
float friction, float restetution)
{
MyModel3D model = new MyModel3D(models, x, -y, 0, Environment.CurrentDirectory + "\\" + PATH_CIRCLE, new System.Windows.Size(radius * 2, radius * 2));
BodyDef bDef = new BodyDef();
bDef.Position.Set(x, y);
bDef.Angle = angle;
CircleDef pDef = new CircleDef();
pDef.Restitution = restetution;
pDef.Friction = friction;
pDef.Density = density;
pDef.Radius = radius;
Body body = world.CreateBody(bDef);
body.CreateShape(pDef);
body.SetMassFromShapes();
body.SetUserData(model);
return(model);
}
public Player(World world, Vector2 midPoint, PlayerController controller)
{
// sprite for rendering
sprite = new AnimatedSprite(new Texture("Textures/Character/idle_00.png"), 0.05F, 20, new Vector2i(62, 50));
sprite.Origin = ((Vector2)sprite.spriteSize) / 2F;
sprite.Scale = Vector2.One * 1.4F;
sprite.restartAnimation(Program.gameTime);
// controller
this.controller = controller;
// set properties
this.size = new Vector2(1F, 1F);
// Physics init
BodyDef bodydef = new BodyDef();
bodydef.Position.Set(midPoint.X, midPoint.Y);
body = world.CreateBody(bodydef);
CircleDef circleDef = new CircleDef();
circleDef.Radius = 0.5F;
circleDef.Density = 1.0F;
circleDef.Friction = 1.0F;
circleDef.Restitution = 0.0F;
body.SetUserData(this);
body.CreateShape(circleDef);
body.SetMassFromShapes();
// weapon
weapon = new Weapon(WeaponType.Gatling);
}
private static ShapeDef CreateBaseCircleDef(PhysicsSetups setups, SizeF size)
{
ShapeDef circleShape = new CircleDef();
(circleShape as CircleDef).Radius = size.Width / 2;
circleShape.Restitution = setups.restetution;
circleShape.Friction = setups.friction;
circleShape.Density = setups.density;
return(circleShape);
}
public static void DefineBody(EntityID entity, Registry registry, PhysicsWorld2D physicsWorld, TransformComponent transform)
{
var rigidBody = registry.GetComponent <RigidBody2D>(entity);
BodyDef bodyDef = new BodyDef();
bodyDef.Position = Util.UtilFunctions.ToVec2(transform.Position / PhysicsWorld2D.PixelToMeter);
bodyDef.Angle = transform.Rotation.Z;
bodyDef.AngularDamping = rigidBody.AngularDamping;
bodyDef.LinearDamping = rigidBody.LinearDamping;
bodyDef.FixedRotation = rigidBody.FixedRotation;
bodyDef.IsSleeping = false;
bodyDef.IsBullet = rigidBody.IsBullet;
Body body = physicsWorld.World.CreateBody(bodyDef);
FixtureDef shapeDef = null;
if (registry.TryGetComponent(entity, out BoxCollider box))
{
shapeDef = new PolygonDef();
((PolygonDef)shapeDef).SetAsBox((box.Width / 2) / PhysicsWorld2D.PixelToMeter, (box.Height / 2) / PhysicsWorld2D.PixelToMeter);
}
else if (registry.TryGetComponent(entity, out CircleCollider circle))
{
shapeDef = new CircleDef();
((CircleDef)shapeDef).Radius = circle.Radius;
}
shapeDef.Density = rigidBody.Density;
shapeDef.Friction = rigidBody.Friction;
shapeDef.Restitution = rigidBody.Restitution;
body.CreateFixture(shapeDef);
if (rigidBody.Mass > 0)
{
MassData massData = new MassData();
massData.Mass = rigidBody.Mass;
massData.Center = body.GetLocalCenter();
body.SetMass(massData);
}
else
{
body.SetMassFromShapes();
}
body.SetUserData(entity);
if (rigidBody.StartVelocity != Vector2.Zero)
{
body.SetLinearVelocity(Util.UtilFunctions.ToVec2(rigidBody.StartVelocity));
}
rigidBody.SetBody(body);
}
/// <summary>
/// Creates a circle geometry and attaches it to a body.
/// </summary>
/// <param name="body">Body to attach circle too.</param>
/// <param name="radius">Radius of the circle.</param>
/// <returns></returns>
public Shape CreateCircleGeom(Body body, float radius)
{
CircleDef geomDef = new CircleDef();
geomDef.Radius = radius;
// add the shape to the body
Shape geom = body.CreateShape(geomDef);
// set the mass from the all the shapes associated with the body
body.SetMassFromShapes();
return(geom);
}
protected override void CreatePhysics(World world, float positionX, float positionY, float friction)
{
var bodyDef = new BodyDef();
bodyDef.Position.Set(positionX, positionY);
bodyDef.LinearDamping = 0.3f;
bodyDef.AngularDamping = 0.6f;
var circleDef = new CircleDef();
circleDef.Density = this.Density;
circleDef.Radius = this.Radius * 0.5f;
circleDef.Friction = friction;
circleDef.Restitution = 0.3f;
this.body = world.CreateBody(bodyDef);
this.body.CreateShape(circleDef);
this.body.SetMassFromShapes();
}
public RigidBody CreateCircleDef(float restetution, float friction, float density,
float radius, short group_index = 1, bool isSensor = false)
{
var pDef = new CircleDef();
pDef.Restitution = restetution;
pDef.Friction = friction;
pDef.Density = density;
pDef.Radius = radius / PhysicsController.metric;
pDef.Filter.GroupIndex = group_index;
pDef.IsSensor = isSensor;
_shapeDef = pDef;
return(this);
}
private Body CreatePole(Vec2 basePose, float angle, float radius, float friction, float restitution, float density, ushort layers)
{
const float __poleLength = 1f;
// ==== Create bar. ====
// Determine position of top of pole with base position of (0, 0), length of 1m and an angle CCW is +ve.
Vec2 polePosTop = new Vec2(__poleLength * (float)-SysMath.Sin(angle), __poleLength * (float)SysMath.Cos(angle));
Vec2 polePosCenter = (polePosTop * 0.5f) + basePose;
BodyDef bodyDef = new BodyDef();
bodyDef.Position.Set(polePosCenter.X, polePosCenter.Y);
bodyDef.Angle = angle;
// Create body object; The body is also added to the world.
Body body = _world.CreateBody(bodyDef);
PolygonDef shapeDef = new PolygonDef();
shapeDef.SetAsBox(radius, __poleLength * 0.5f);
shapeDef.Friction = friction;
shapeDef.Restitution = restitution;
shapeDef.Density = density;
shapeDef.Filter.MaskBits = layers;
shapeDef.Filter.CategoryBits = 0x3;
body.CreateShape(shapeDef);
// ==== Place some end caps on the pole. ====
CircleDef circleDef = new CircleDef();
circleDef.Radius = radius;
circleDef.Friction = friction;
circleDef.Restitution = restitution;
circleDef.Density = 0f;
circleDef.Filter.MaskBits = layers;
circleDef.Filter.CategoryBits = 0x3;
// Top cap.
circleDef.LocalPosition.Set(0f, __poleLength * 0.5f);
body.CreateShape(circleDef);
// Bottom cap.
circleDef.LocalPosition.Set(0f, -__poleLength * 0.5f);
body.CreateShape(circleDef);
body.SetMassFromShapes();
return(body);
}
public Buoyancy()
{
BuoyancyController bc = _bc;
_world.AddController(bc);
bc.Offset = 15;
bc.Normal.Set(0, 1);
bc.Density = 2;
bc.LinearDrag = 2;
bc.AngularDrag = 1;
for (int i = 0; i < 2; ++i)
{
PolygonDef sd = new PolygonDef();
sd.VertexCount = 3;
sd.Vertices[0].Set(-0.5f, 0.0f);
sd.Vertices[1].Set(0.5f, 0.0f);
sd.Vertices[2].Set(0.0f, 1.5f);
sd.Density = 1.0f;
BodyDef bd = new BodyDef();
bd.Position.Set(-8.0f + 8.0f * i, 12.0f);
Body body = _world.CreateBody(bd);
body.CreateFixture(sd);
body.SetMassFromShapes();
bc.AddBody(body);
}
for (int i = 0; i < 3; ++i)
{
CircleDef sd = new CircleDef();
sd.Radius = 0.5f;
sd.Density = 1.0f;
BodyDef bd = new BodyDef();
bd.Position.Set(-6.0f + 6.0f * i, 10.0f);
Body body = _world.CreateBody(bd);
body.CreateFixture(sd);
body.SetMassFromShapes();
bc.AddBody(body);
}
}
BipedTest()
{
const float k_restitution = 1.4f;
{
BodyDef bd = new BodyDef();
bd.Position.Set(0.0f, 20.0f);
Body body = _world.CreateBody(bd);
PolygonDef sd = new PolygonDef();
sd.Density = 0.0f;
sd.Restitution = k_restitution;
sd.SetAsBox(0.1f, 10.0f, new Vec2(-10.0f, 0.0f), 0.0f);
body.CreateShape(sd);
sd.SetAsBox(0.1f, 10.0f, new Vec2(10.0f, 0.0f), 0.0f);
body.CreateShape(sd);
sd.SetAsBox(0.1f, 10.0f, new Vec2(0.0f, -10.0f), 0.5f * Box2DX.Common.Settings.Pi);
body.CreateShape(sd);
sd.SetAsBox(0.1f, 10.0f, new Vec2(0.0f, 10.0f), -0.5f * Box2DX.Common.Settings.Pi);
body.CreateShape(sd);
}
_biped = new Biped(_world, new Vec2(0.0f, 20.0f));
for (int i = 0; i < 8; ++i)
{
BodyDef bd = new BodyDef();
bd.Position.Set(5.0f, 20.0f + i);
bd.IsBullet = true;
Body body = _world.CreateBody(bd);
body.SetLinearVelocity(new Vec2(0.0f, -100.0f));
body.SetAngularVelocity(Box2DX.Common.Math.Random(-50.0f, 50.0f));
CircleDef sd = new CircleDef();
sd.Radius = 0.25f;
sd.Density = 15.0f;
sd.Restitution = k_restitution;
body.CreateShape(sd);
body.SetMassFromShapes();
}
}
BipedTest()
{
const float k_restitution = 1.4f;
{
BodyDef bd = new BodyDef();
bd.Position.Set(0.0f, 20.0f);
Body body = _world.CreateBody(bd);
PolygonDef sd = new PolygonDef();
sd.Density = 0.0f;
sd.Restitution = k_restitution;
sd.SetAsBox(0.1f, 10.0f, new Vec2(-10.0f, 0.0f), 0.0f);
body.CreateShape(sd);
sd.SetAsBox(0.1f, 10.0f, new Vec2(10.0f, 0.0f), 0.0f);
body.CreateShape(sd);
sd.SetAsBox(0.1f, 10.0f, new Vec2(0.0f, -10.0f), 0.5f * Box2DX.Common.Settings.Pi);
body.CreateShape(sd);
sd.SetAsBox(0.1f, 10.0f, new Vec2(0.0f, 10.0f), -0.5f * Box2DX.Common.Settings.Pi);
body.CreateShape(sd);
}
_biped = new Biped(_world, new Vec2(0.0f, 20.0f));
for (int i = 0; i < 8; ++i)
{
BodyDef bd = new BodyDef();
bd.Position.Set(5.0f, 20.0f + i);
bd.IsBullet = true;
Body body = _world.CreateBody(bd);
body.SetLinearVelocity(new Vec2(0.0f, -100.0f));
body.SetAngularVelocity(Box2DX.Common.Math.Random(-50.0f, 50.0f));
CircleDef sd = new CircleDef();
sd.Radius = 0.25f;
sd.Density = 15.0f;
sd.Restitution = k_restitution;
body.CreateShape(sd);
body.SetMassFromShapes();
}
}
public Buoyancy()
{
BuoyancyController bc = _bc;
_world.AddController(bc);
bc.offset = 15;
bc.normal.Set(0, 1);
bc.density = 2;
bc.linearDrag = 2;
bc.angularDrag = 1;
for (int i = 0; i < 2; ++i)
{
PolygonDef sd = new PolygonDef();
sd.VertexCount = 3;
sd.Vertices[0].Set(-0.5f, 0.0f);
sd.Vertices[1].Set(0.5f, 0.0f);
sd.Vertices[2].Set(0.0f, 1.5f);
sd.Density = 1.0f;
BodyDef bd = new BodyDef();
bd.Position.Set(-8.0f + 8.0f * i, 12.0f);
Body body = _world.CreateBody(bd);
body.CreateShape(sd);
body.SetMassFromShapes();
bc.AddBody(body);
}
for (int i = 0; i < 3; ++i)
{
CircleDef sd = new CircleDef();
sd.Radius = 0.5f;
sd.Density = 1.0f;
BodyDef bd = new BodyDef();
bd.Position.Set(-6.0f + 6.0f * i, 10.0f);
Body body = _world.CreateBody(bd);
body.CreateShape(sd);
body.SetMassFromShapes();
bc.AddBody(body);
}
}
private void GenMultiIslands()
{
Log.Message("[Map Designer] Island Multispawn");
outerRadius /= 2;
innerRadius /= 2;
//beachSize /= 2;
List <CircleDef> islandList = new List <CircleDef>();
islandList.Add(new CircleDef(center, outerRadius));
CircleDef circle = new CircleDef(center, outerRadius);
islandList = GenNestedCircles(circle, islandList);
List <CircleDef> finalIslands = new List <CircleDef>();
islandList = islandList.OrderByDescending(ci => ci.Radius).ToList();
foreach (CircleDef c in islandList)
{
if (c.Radius > 3)
{
if (c.Center.DistanceToEdge(myMap) >= 15)
{
List <IntVec3> newCells = HelperMethods.GenCircle(myMap, c.Center, c.Radius);
if (!newCells.Intersect(beachCells).Any())
{
finalIslands.Add(c);
beachCells.AddRange(HelperMethods.GenCircle(myMap, c.Center, c.Radius));
}
}
}
}
foreach (CircleDef f in finalIslands)
{
if (f.Radius > beachSize * 2)
{
landCells.AddRange(HelperMethods.GenCircle(myMap, f.Center, f.Radius - beachSize));
beachCells = beachCells.Except(HelperMethods.GenCircle(myMap, f.Center, f.Radius - beachSize)).ToList();
}
}
}
public Revolute()
{
Body ground = null;
{
PolygonDef sd = new PolygonDef();
sd.SetAsBox(50.0f, 10.0f);
BodyDef bd = new BodyDef();
bd.Position.Set(0.0f, -10.0f);
ground = _world.CreateBody(bd);
ground.CreateShape(sd);
}
{
CircleDef sd = new CircleDef();
sd.Radius = 0.5f;
sd.Density = 5.0f;
BodyDef bd = new BodyDef();
RevoluteJointDef rjd = new RevoluteJointDef();
bd.Position.Set(0.0f, 20.0f);
Body body = _world.CreateBody(bd);
body.CreateShape(sd);
body.SetMassFromShapes();
float w = 100.0f;
body.SetAngularVelocity(w);
body.SetLinearVelocity(new Vec2(-8.0f * w, 0.0f));
rjd.Initialize(ground, body, new Vec2(0.0f, 12.0f));
rjd.MotorSpeed = 1.0f * Box2DX.Common.Settings.Pi;
rjd.MaxMotorTorque = 10000.0f;
rjd.EnableMotor = false;
rjd.LowerAngle = -0.25f * Box2DX.Common.Settings.Pi;
rjd.UpperAngle = 0.5f * Box2DX.Common.Settings.Pi;
rjd.EnableLimit = true;
rjd.CollideConnected = true;
_joint = (RevoluteJoint)_world.CreateJoint(rjd);
}
}
public Revolute()
{
Body ground = null;
{
PolygonDef sd = new PolygonDef();
sd.SetAsBox(50.0f, 10.0f);
BodyDef bd = new BodyDef();
bd.Position.Set(0.0f, -10.0f);
ground = _world.CreateBody(bd);
ground.CreateFixture(sd);
}
{
CircleDef sd = new CircleDef();
sd.Radius = 0.5f;
sd.Density = 5.0f;
BodyDef bd = new BodyDef();
RevoluteJointDef rjd = new RevoluteJointDef();
bd.Position.Set(0.0f, 20.0f);
Body body = _world.CreateBody(bd);
body.CreateFixture(sd);
body.SetMassFromShapes();
float w = 100.0f;
body.SetAngularVelocity(w);
body.SetLinearVelocity(new Vec2(-8.0f * w, 0.0f));
rjd.Initialize(ground, body, new Vec2(0.0f, 12.0f));
rjd.MotorSpeed = 1.0f * Box2DNet.Common.Settings.Pi;
rjd.MaxMotorTorque = 10000.0f;
rjd.EnableMotor = false;
rjd.LowerAngle = -0.25f * Box2DNet.Common.Settings.Pi;
rjd.UpperAngle = 0.5f * Box2DNet.Common.Settings.Pi;
rjd.EnableLimit = true;
rjd.CollideConnected = true;
_joint = (RevoluteJoint)_world.CreateJoint(rjd);
}
}
/// <summary>
/// 初期化
/// </summary>
/// <param name="shapeType">物理形状タイプ</param>
/// <param name="world">登録するワールド</param>
public PhysicalCircleShape(PhysicalShapeType shapeType, PhysicalWorld world)
{
density = 1.0f;
restitution = 0.3f;
base.Angle = 0.0f;
groupIndex = 0;
categoryBits = 0x0001;
maskBits = 0xffff;
b2BodyDef = new BodyDef();
b2CircleDef = new CircleDef();
refWorld = world;
physicalShapeType = shapeType;
b2Body = refWorld.B2World.CreateBody(b2BodyDef);
b2Body.CreateFixture(b2CircleDef);
if (physicalShapeType == PhysicalShapeType.Dynamic)
{
b2Body.SetMassFromShapes();
}
world.Add(this);
}
private void addCircle(Body body)
{
try
{
if (body.GetUserData() == null)
{
return;
}
GizmoComponents myGizmo = (GizmoComponents)body.GetUserData();
CircleDef circleDef = new CircleDef();
circleDef.Radius = myGizmo.Radius;
circleDef.Density = myGizmo.Density;
circleDef.Restitution = myGizmo.Restitution;
circleDef.Friction = myGizmo.Friction;
body.CreateFixture(circleDef);
}
catch (Exception e)
{
MessageBox.Show("PhysicalWorld-addBaffleX函数出错");
}
}
public RaycastTest()
{
Body ground = null;
{
BodyDef bd = new BodyDef();
bd.Position.Set(0.0f, -10.0f);
ground = _world.CreateBody(bd);
PolygonDef sd = new PolygonDef();
sd.SetAsBox(50.0f, 10.0f);
ground.CreateFixture(sd);
}
{
BodyDef bd = new BodyDef();
bd.Position.Set(0.0f, 1.0f);
laserBody = _world.CreateBody(bd);
PolygonDef sd = new PolygonDef();
sd.SetAsBox(5.0f, 1.0f);
sd.Density = 4.0f;
laserBody.CreateFixture(sd);
laserBody.SetMassFromShapes();
Body body;
//Create a few shapes
bd.Position.Set(-5.0f, 10.0f);
body = _world.CreateBody(bd);
CircleDef cd = new CircleDef();
cd.Radius = 3;
body.CreateFixture(cd);
bd.Position.Set(5.0f, 10.0f);
body = _world.CreateBody(bd);
body.CreateFixture(cd);
}
}
public RaycastTest()
{
Body ground = null;
{
BodyDef bd = new BodyDef();
bd.Position.Set(0.0f, -10.0f);
ground = _world.CreateBody(bd);
PolygonDef sd = new PolygonDef();
sd.SetAsBox(50.0f, 10.0f);
ground.CreateShape(sd);
}
{
BodyDef bd = new BodyDef();
bd.Position.Set(0.0f, 1.0f);
laserBody = _world.CreateBody(bd);
PolygonDef sd = new PolygonDef();
sd.SetAsBox(5.0f, 1.0f);
sd.Density = 4.0f;
laserBody.CreateShape(sd);
laserBody.SetMassFromShapes();
Body body;
//Create a few shapes
bd.Position.Set(-5.0f, 10.0f);
body = _world.CreateBody(bd);
CircleDef cd = new CircleDef();
cd.Radius = 3;
body.CreateShape(cd);
bd.Position.Set(5.0f, 10.0f);
body = _world.CreateBody(bd);
body.CreateShape(cd);
}
}
//только для тестов
public SolidBody(IGameObject parent) : base(parent)
{
shape = new RectangleF(60, 70, 5, 5);
BodyDef bDef = new BodyDef();
bDef.Position.Set(shape.X, shape.Y);
bDef.Angle = 0;
bDef.FixedRotation = true;
CircleDef pDef = new CircleDef();
pDef.Restitution = 0;
pDef.Friction = 0;
pDef.Density = 0.5f;
pDef.Radius = shape.Width / 2;
pDef.Filter.CategoryBits = 0;
pDef.Filter.MaskBits = 0;
Body = Parent.Model.Field.CreateBody(bDef);
Body.CreateShape(pDef);
Body.SetMassFromShapes();
Body.SetUserData(this);
}
public InfoBody AddCircle(float x, float y, float radius, float angle, float density,
float friction, float restetution, float mass, Image image, object userDate = null)
{
BodyDef bDef = new BodyDef();
bDef.Position.Set(x / metric, y / metric);
bDef.Angle = angle;
CircleDef pDef = new CircleDef();
pDef.Restitution = restetution;
pDef.Friction = friction;
pDef.Density = density;
pDef.Radius = radius / metric;
Body body = world.CreateBody(bDef);
body.CreateShape(pDef);
body.SetMassFromShapes();
float Inertia = body.GetInertia();
MassData md = new MassData();
md.I = Inertia;
md.Mass = mass;
body.SetMass(md);
InfoBody info = new InfoBody();
info.image = image;
info.body = body;
info.userDate = userDate;
body.SetUserData(info);
return(info);
}
public SensorTest()
{
{
BodyDef bd = new BodyDef();
bd.Position.Set(0.0f, -10.0f);
Body ground = _world.CreateBody(bd);
PolygonDef sd = new PolygonDef();
sd.SetAsBox(50.0f, 10.0f);
ground.CreateFixture(sd);
CircleDef cd = new CircleDef();
cd.IsSensor = true;
cd.Radius = 5.0f;
cd.LocalPosition.Set(0.0f, 20.0f);
_fixtureCircle = ground.CreateFixture(cd);
_sensor = _fixtureCircle.Shape;
}
{
CircleDef sd = new CircleDef();
sd.Radius = 1.0f;
sd.Density = 1.0f;
for (int i = 0; i < 7; ++i)
{
BodyDef bd = new BodyDef();
bd.Position.Set(-10.0f + 3.0f * i, 20.0f);
Body body = _world.CreateBody(bd);
body.CreateFixture(sd);
body.SetMassFromShapes();
}
}
}
private static List <CircleDef> GenNestedCircles(CircleDef starterCircle, List <CircleDef> circles, int i = 0)
{
int radDist = starterCircle.Radius;
if (i < 3)
{
IntRange additions = new IntRange((int)(radDist * 1.3), (int)(radDist * 3));
IntRange sizeWobble = new IntRange(-5, 5);
for (int j = 0; j < 4 - i; j++)
{
IntVec3 newCenter = starterCircle.Center;
if (Rand.Bool)
{
newCenter.x += additions.RandomInRange;
}
else
{
newCenter.x -= additions.RandomInRange;
}
if (Rand.Bool)
{
newCenter.z += additions.RandomInRange;
}
else
{
newCenter.z -= additions.RandomInRange;
}
CircleDef newCircle = new CircleDef(newCenter, (int)(sizeWobble.RandomInRange + radDist * 0.65));
circles.Add(newCircle);
circles.Concat(GenNestedCircles(newCircle, circles, i + 1));
}
}
return(circles);
}
public SensorTest()
{
{
BodyDef bd = new BodyDef();
bd.Position.Set(0.0f, -10.0f);
Body ground = _world.CreateBody(bd);
PolygonDef sd = new PolygonDef();
sd.SetAsBox(50.0f, 10.0f);
ground.CreateShape(sd);
CircleDef cd = new CircleDef();
cd.IsSensor = true;
cd.Radius = 5.0f;
cd.LocalPosition.Set(0.0f, 20.0f);
_sensor = ground.CreateShape(cd);
}
{
CircleDef sd = new CircleDef();
sd.Radius = 1.0f;
sd.Density = 1.0f;
for (int i = 0; i < 7; ++i)
{
BodyDef bd = new BodyDef();
bd.Position.Set(-10.0f + 3.0f * i, 20.0f);
Body body = _world.CreateBody(bd);
body.CreateShape(sd);
body.SetMassFromShapes();
}
}
}
public InfoBody AddCircle(float x, float y, float radius, float angle, float density,
float friction, float restetution, Bitmap image, object userDate = null)
{
Image g_image = new Image(game);
g_image.SetImage(image);
g_image.SetWidth(radius * 2);
g_image.SetHeight(radius * 2);
BodyDef bDef = new BodyDef();
bDef.Position.Set(x / metric, y / metric);
bDef.Angle = angle;
CircleDef pDef = new CircleDef();
pDef.Restitution = restetution;
pDef.Friction = friction;
pDef.Density = density;
pDef.Radius = radius / metric;
Body body = world.CreateBody(bDef);
body.CreateShape(pDef);
body.SetMassFromShapes();
InfoBody info = new InfoBody();
info.image = g_image;
info.body = body;
info.userDate = userDate;
body.SetUserData(info);
return(info);
}
private Body CreatePole(Vec2 basePose, float length, float angle, float radius, float density, ushort layers)
{
// ==== Create bar. ====
// Determine position of top of pole with base position of (0, 0), length of 1m and an angle CCW is +ve.
Vec2 polePosTop = new Vec2(length * (float)-SysMath.Sin(angle), length * (float)SysMath.Cos(angle));
Vec2 polePosCenter = (polePosTop * 0.5f) + basePose;
BodyDef bodyDef = new BodyDef();
bodyDef.Position.Set(polePosCenter.X, polePosCenter.Y);
bodyDef.Angle = angle;
bodyDef.IsBullet = true;
// Create body object; The body is also added to the world.
Body body = _world.CreateBody(bodyDef);
PolygonDef shapeDef = new PolygonDef();
shapeDef.SetAsBox(radius, length * 0.5f);
shapeDef.Friction = _simParams._defaultFriction;
shapeDef.Restitution = _simParams._defaultRestitution;
shapeDef.Density = density;
shapeDef.Filter.MaskBits = 0xFFFE;
shapeDef.Filter.CategoryBits = layers;
body.CreateShape(shapeDef);
// ==== Place some end caps on the pole. ====
CircleDef circleDef = new CircleDef();
circleDef.Radius = radius;
circleDef.Friction = _simParams._defaultFriction;
circleDef.Restitution = _simParams._defaultRestitution;
circleDef.Density = density;
circleDef.Filter.MaskBits = 0xFFFE;
circleDef.Filter.CategoryBits = layers;
// Top cap.
circleDef.LocalPosition.Set(0f, length * 0.5f);
body.CreateShape(circleDef);
// Bottom cap.
circleDef.LocalPosition.Set(0f, -length * 0.5f);
body.CreateShape(circleDef);
body.SetMassFromShapes();
return body;
}
public override void Generate(Map map, GenStepParams parms)
{
IntVec3 center = map.Center;
int outerRadius = (int)(0.01 * map.Size.x * MapDesignerMod.mod.settings.priIslandSize);
int beachSize = (int)MapDesignerMod.mod.settings.priBeachSize;
int innerRadius = outerRadius - beachSize;
List <IntVec3> beachCells = new List <IntVec3>();
List <IntVec3> landCells = new List <IntVec3>();
Log.Message("[Map Designer] Creating multiple islands");
if (MapDesignerMod.mod.settings.priMultiSpawn)
{
Log.Message("[Map Designer] Island Multispawn");
outerRadius /= 2;
innerRadius /= 2;
//beachSize /= 2;
List <CircleDef> islandList = new List <CircleDef>();
islandList.Add(new CircleDef(center, outerRadius));
CircleDef circle = new CircleDef(center, outerRadius);
islandList = GenNestedCircles(circle, islandList);
List <CircleDef> finalIslands = new List <CircleDef>();
islandList = islandList.OrderByDescending(ci => ci.Radius).ToList();
foreach (CircleDef c in islandList)
{
if (c.Radius > 3)
{
if (c.Center.DistanceToEdge(map) >= 15)
{
List <IntVec3> newCells = HelperMethods.GenCircle(map, c.Center, c.Radius);
if (!newCells.Intersect(beachCells).Any())
{
finalIslands.Add(c);
beachCells.AddRange(HelperMethods.GenCircle(map, c.Center, c.Radius));
}
}
}
}
foreach (CircleDef f in finalIslands)
{
if (f.Radius > beachSize * 2)
{
landCells.AddRange(HelperMethods.GenCircle(map, f.Center, f.Radius - beachSize));
beachCells = beachCells.Except(HelperMethods.GenCircle(map, f.Center, f.Radius - beachSize)).ToList();
}
}
}
else
{
Log.Message("[Map Designer] Creating single island");
landCells = HelperMethods.GenCircle(map, center, innerRadius);
beachCells = HelperMethods.GenCircle(map, center, outerRadius).Except(landCells).ToList();
}
MapGenFloatGrid elevation = MapGenerator.Elevation;
MapGenFloatGrid fertility = MapGenerator.Fertility;
List <IntVec3> waterCells = map.AllCells.Except(landCells).Except(beachCells).ToList();
foreach (IntVec3 current in beachCells)
{
fertility[current] = -1075f;
elevation[current] = 0;
}
foreach (IntVec3 current in waterCells)
{
fertility[current] = -2025f;
elevation[current] = 0;
}
}
// Main...
public ElasticBody()
{
// Bottom static body
{
PolygonDef sd = new PolygonDef();
sd.SetAsBox(50.0f, 2.0f);
sd.Friction = 0.1f;
sd.Restitution = 0.1f;
BodyDef bd = new BodyDef();
bd.Position.Set(-1.0f, -7.5f);
_ground = _world.CreateBody(bd);
_ground.CreateShape(sd);
}
// Upper static body
{
PolygonDef sd = new PolygonDef();
sd.SetAsBox(20.0f, 0.50f, new Vec2(0.0f, 0.0f), 0.047f * Box2DX.Common.Settings.Pi);
sd.Friction = 0.01f;
sd.Restitution = 0.001f;
BodyDef bd = new BodyDef();
bd.Position.Set(-20.0f, 93.0f);
Body g = _world.CreateBody(bd);
g.CreateShape(sd);
sd.SetAsBox(15.0f, 0.50f, new Vec2(-15.0f, 12.5f), 0.0f);
g.CreateShape(sd);
sd.SetAsBox(20.0f, 0.5f, new Vec2(0.0f, -25.0f), -0.5f);
g.CreateShape(sd);
}
// Left channel left wall
{
PolygonDef sd = new PolygonDef();
sd.SetAsBox(0.7f, 55.0f);
sd.Friction = 0.1f;
sd.Restitution = 0.1f;
BodyDef bd = new BodyDef();
bd.Position.Set(-49.3f, 50.0f);
Body g = _world.CreateBody(bd);
g.CreateShape(sd);
}
// Right wall
{
PolygonDef sd = new PolygonDef();
sd.SetAsBox(0.7f, 55.0f);
sd.Friction = 0.1f;
sd.Restitution = 0.1f;
BodyDef bd = new BodyDef();
bd.Position.Set(45.0f, 50.0f);
Body g = _world.CreateBody(bd);
g.CreateShape(sd);
}
// Left channel right upper wall
{
PolygonDef sd = new PolygonDef();
sd.SetAsBox(0.5f, 20.0f);
sd.Friction = 0.05f;
sd.Restitution = 0.01f;
BodyDef bd = new BodyDef();
bd.Position.Set(-42.0f, 70.0f);
bd.Angle = -0.03f * Box2DX.Common.Settings.Pi;
Body g = _world.CreateBody(bd);
g.CreateShape(sd);
}
// Left channel right lower wall
{
PolygonDef sd = new PolygonDef();
sd.SetAsBox(0.50f, 23.0f);
sd.Friction = 0.05f;
sd.Restitution = 0.01f;
BodyDef bd = new BodyDef();
bd.Position.Set(-44.0f, 27.0f);
Body g = _world.CreateBody(bd);
g.CreateShape(sd);
// Bottom motors
CircleDef cd = new CircleDef();
cd.Radius = 3.0f;
cd.Density = 15.0f;
cd.Friction = 1.0f;
cd.Restitution = 0.2f;
// 1.
bd.Position.Set(-40.0f, 2.5f);
Body body = _world.CreateBody(bd);
body.CreateShape(cd);
body.SetMassFromShapes();
RevoluteJointDef jr = new RevoluteJointDef();
jr.Initialize(g, body, body.GetWorldCenter() + new Vec2(0.0f, 1.0f));
jr.MaxMotorTorque = 30000.0f;
jr.EnableMotor = true;
jr.MotorSpeed = 20.0f;
_world.CreateJoint(jr);
// 1. left down
bd.Position.Set(-46.0f, -2.5f);
cd.Radius = 1.5f; jr.MotorSpeed = -20.0f;
body = _world.CreateBody(bd);
body.CreateShape(cd);
sd.SetAsBox(2.0f, 0.50f);
body.CreateShape(sd);
body.SetMassFromShapes();
jr.Initialize(g, body, body.GetWorldCenter());
_world.CreateJoint(jr);
// 2.
cd.Radius = 3.0f; jr.MotorSpeed = 20.0f;
bd.Position.Set(-32.0f, 2.5f);
body = _world.CreateBody(bd);
body.CreateShape(cd);
body.SetMassFromShapes();
jr.Initialize(g, body, body.GetWorldCenter() + new Vec2(0.0f, 1.0f));
_world.CreateJoint(jr);
// 3.
jr.MotorSpeed = 20.0f;
bd.Position.Set(-24.0f, 1.5f);
body = _world.CreateBody(bd);
body.CreateShape(cd);
body.SetMassFromShapes();
jr.Initialize(g, body, body.GetWorldCenter() + new Vec2(0.0f, 1.0f));
_world.CreateJoint(jr);
// 4.
bd.Position.Set(-16.0f, 0.8f);
body = _world.CreateBody(bd);
body.CreateShape(cd);
body.SetMassFromShapes();
jr.Initialize(g, body, body.GetWorldCenter() + new Vec2(0.0f, 1.0f));
_world.CreateJoint(jr);
// 5.
bd.Position.Set(-8.0f, 0.5f);
body = _world.CreateBody(bd);
body.CreateShape(cd);
body.SetMassFromShapes();
jr.Initialize(g, body, body.GetWorldCenter() + new Vec2(0.0f, 1.0f));
_world.CreateJoint(jr);
// 6.
bd.Position.Set(0.0f, 0.1f);
body = _world.CreateBody(bd);
body.CreateShape(cd);
body.SetMassFromShapes();
jr.Initialize(g, body, body.GetWorldCenter() + new Vec2(0.0f, 1.0f));
_world.CreateJoint(jr);
// 7.
bd.Position.Set(8.0f, -0.5f);
body = _world.CreateBody(bd);
body.CreateShape(cd);
sd.SetAsBox(3.7f, 0.5f);
body.CreateShape(sd);
body.SetMassFromShapes();
jr.Initialize(g, body, body.GetWorldCenter() + new Vec2(0.0f, 1.0f));
_world.CreateJoint(jr);
// 8. right rotator
sd.SetAsBox(5.0f, 0.5f);
sd.Density = 2.0f;
bd.Position.Set(18.0f, 1.0f);
Body rightmotor = _world.CreateBody(bd);
rightmotor.CreateShape(sd);
sd.SetAsBox(4.5f, 0.5f, new Vec2(0.0f, 0.0f), Box2DX.Common.Settings.Pi / 3.0f);
rightmotor.CreateShape(sd);
sd.SetAsBox(4.5f, 0.5f, new Vec2(0.0f, 0.0f), Box2DX.Common.Settings.Pi * 2.0f / 3.0f);
rightmotor.CreateShape(sd);
cd.Radius = 4.2f;
rightmotor.CreateShape(cd);
rightmotor.SetMassFromShapes();
jr.Initialize(g, rightmotor, rightmotor.GetWorldCenter());
jr.MaxMotorTorque = 70000.0f;
jr.MotorSpeed = -4.0f;
_world.CreateJoint(jr);
// 9. left rotator
sd.SetAsBox(8.5f, 0.5f);
sd.Density = 2.0f;
bd.Position.Set(-34.0f, 17.0f);
body = _world.CreateBody(bd);
body.CreateShape(sd);
sd.SetAsBox(8.5f, 0.5f, new Vec2(0.0f, 0.0f), Box2DX.Common.Settings.Pi * .5f);
body.CreateShape(sd);
cd.Radius = 7.0f;
cd.Friction = 0.9f;
body.CreateShape(cd);
body.SetMassFromShapes();
jr.Initialize(g, body, body.GetWorldCenter());
jr.MaxMotorTorque = 100000.0f;
jr.MotorSpeed = -5.0f;
_world.CreateJoint(jr);
// big compressor
sd.SetAsBox(3.0f, 4.0f);
sd.Density = 10.0f;
bd.Position.Set(-16.0f, 17.0f);
Body hammerleft = _world.CreateBody(bd);
hammerleft.CreateShape(sd);
hammerleft.SetMassFromShapes();
DistanceJointDef jd = new DistanceJointDef();
jd.Initialize(body, hammerleft, body.GetWorldCenter() + new Vec2(0.0f, 6.0f), hammerleft.GetWorldCenter());
_world.CreateJoint(jd);
bd.Position.Set(4.0f, 17.0f);
Body hammerright = _world.CreateBody(bd);
hammerright.CreateShape(sd);
hammerright.SetMassFromShapes();
jd.Initialize(body, hammerright, body.GetWorldCenter() - new Vec2(0.0f, 6.0f), hammerright.GetWorldCenter());
_world.CreateJoint(jd);
// pusher
sd.SetAsBox(6.0f, 0.75f);
bd.Position.Set(-21.0f, 9.0f);
Body pusher = _world.CreateBody(bd);
pusher.CreateShape(sd);
sd.SetAsBox(2.0f, 1.5f, new Vec2(-5.0f, 0.0f), 0.0f);
pusher.SetMassFromShapes();
pusher.CreateShape(sd);
jd.Initialize(rightmotor, pusher, rightmotor.GetWorldCenter() + new Vec2(-8.0f, 0.0f),
pusher.GetWorldCenter() + new Vec2(5.0f, 0.0f));
_world.CreateJoint(jd);
}
// Static bodies above motors
{
PolygonDef sd = new PolygonDef();
CircleDef cd = new CircleDef();
sd.SetAsBox(9.0f, 0.5f);
sd.Friction = 0.05f;
sd.Restitution = 0.01f;
BodyDef bd = new BodyDef();
bd.Position.Set(-15.5f, 12.0f);
bd.Angle = 0.0f;
Body g = _world.CreateBody(bd);
g.CreateShape(sd);
sd.SetAsBox(8.0f, 0.5f, new Vec2(23.0f, 0.0f), 0.0f);
g.CreateShape(sd);
// compressor statics
sd.SetAsBox(7.0f, 0.5f, new Vec2(-2.0f, 9.0f), 0.0f);
g.CreateShape(sd);
sd.SetAsBox(9.0f, 0.5f, new Vec2(22.0f, 9.0f), 0.0f);
g.CreateShape(sd);
sd.SetAsBox(19.0f, 0.5f, new Vec2(-9.0f, 15.0f), -0.05f);
g.CreateShape(sd);
sd.SetAsBox(4.7f, 0.5f, new Vec2(15.0f, 11.5f), -0.5f);
g.CreateShape(sd);
// below compressor
sd.SetAsBox(26.0f, 0.3f, new Vec2(17.0f, -4.4f), -0.02f);
g.CreateShape(sd);
cd.Radius = 1.0f; cd.Friction = 1.0f;
cd.LocalPosition = new Vec2(29.0f, -6.0f);
g.CreateShape(cd);
cd.Radius = 0.7f;
cd.LocalPosition = new Vec2(-2.0f, -4.5f);
g.CreateShape(cd);
}
// Elevator
{
BodyDef bd = new BodyDef();
CircleDef cd = new CircleDef();
PolygonDef sd = new PolygonDef();
bd.Position.Set(40.0f, 4.0f);
_elev = _world.CreateBody(bd);
sd.SetAsBox(0.5f, 2.5f, new Vec2(3.0f, -3.0f), 0.0f);
sd.Density = 1.0f;
sd.Friction = 0.01f;
_elev.CreateShape(sd);
sd.SetAsBox(7.0f, 0.5f, new Vec2(-3.5f, -5.5f), 0.0f);
_elev.CreateShape(sd);
sd.SetAsBox(0.5f, 2.5f, new Vec2(-11.0f, -3.5f), 0.0f);
_elev.CreateShape(sd);
_elev.SetMassFromShapes();
PrismaticJointDef jp = new PrismaticJointDef();
jp.Initialize(_ground, _elev, bd.Position, new Vec2(0.0f, 1.0f));
jp.LowerTranslation = 0.0f;
jp.UpperTranslation = 100.0f;
jp.EnableLimit = true;
jp.EnableMotor = true;
jp.MaxMotorForce = 10000.0f;
jp.MotorSpeed = 0.0f;
_joint_elev = (PrismaticJoint)_world.CreateJoint(jp);
// Korb
sd.SetAsBox(2.3f, 0.5f, new Vec2(1.0f, 0.0f), 0.0f);
sd.Density = 0.5f;
bd.Position.Set(29.0f, 6.5f);
Body body = _world.CreateBody(bd);
body.CreateShape(sd);
sd.SetAsBox(2.5f, 0.5f, new Vec2(3.0f, -2.0f), Box2DX.Common.Settings.Pi / 2.0f);
body.CreateShape(sd);
sd.SetAsBox(4.6f, 0.5f, new Vec2(7.8f, -4.0f), 0.0f);
body.CreateShape(sd);
sd.SetAsBox(0.5f, 4.5f, new Vec2(12.0f, 0.0f), 0.0f);
body.CreateShape(sd);
sd.SetAsBox(0.5f, 0.5f, new Vec2(13.0f, 4.0f), 0.0f);
body.CreateShape(sd);
cd.Radius = 0.7f; cd.Density = 1.0f; cd.Friction = 0.01f;
cd.LocalPosition = new Vec2(0.0f, 0.0f);
body.CreateShape(cd);
body.SetMassFromShapes();
RevoluteJointDef jr = new RevoluteJointDef();
jr.Initialize(_elev, body, bd.Position);
jr.EnableLimit = true;
jr.LowerAngle = -0.2f;
jr.UpperAngle = Box2DX.Common.Settings.Pi * 1.1f;
jr.CollideConnected = true;
_world.CreateJoint(jr);
// upper body exit
sd.SetAsBox(14.0f, 0.5f, new Vec2(-3.5f, -10.0f), 0.0f);
bd.Position.Set(17.5f, 96.0f);
body = _world.CreateBody(bd);
body.CreateShape(sd);
}
// "Elastic body" 64 bodies - something like a lin. elastic compound
// connected via dynamic forces (springs)
{
PolygonDef sd = new PolygonDef();
sd.SetAsBox(0.55f, 0.55f);
sd.Density = 1.5f;
sd.Friction = 0.01f;
sd.Filter.GroupIndex = -1;
Vec2 startpoint = new Vec2(30.0f, 20.0f);
BodyDef bd = new BodyDef();
bd.IsBullet = false;
bd.AllowSleep = false;
for (int i = 0; i < 8; ++i)
{
for (int j = 0; j < 8; ++j)
{
bd.Position.Set(j * 1.02f, 2.51f + 1.02f * i);
bd.Position += startpoint;
Body body = _world.CreateBody(bd);
bodies[8 * i + j] = body;
body.CreateShape(sd);
body.SetMassFromShapes();
}
}
}
}
public Gears()
{
Body ground = null;
{
BodyDef bd = new BodyDef();
bd.Position.Set(0.0f, -10.0f);
ground = _world.CreateBody(bd);
PolygonDef sd = new PolygonDef();
sd.SetAsBox(50.0f, 10.0f);
ground.CreateShape(sd);
}
{
CircleDef circle1 = new CircleDef();
circle1.Radius = 1.0f;
circle1.Density = 5.0f;
CircleDef circle2 = new CircleDef();
circle2.Radius = 2.0f;
circle2.Density = 5.0f;
PolygonDef box = new PolygonDef();
box.SetAsBox(0.5f, 5.0f);
box.Density = 5.0f;
BodyDef bd1 = new BodyDef();
bd1.Position.Set(-3.0f, 12.0f);
Body body1 = _world.CreateBody(bd1);
body1.CreateShape(circle1);
body1.SetMassFromShapes();
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.CreateShape(circle2);
body2.SetMassFromShapes();
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.CreateShape(box);
body3.SetMassFromShapes();
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);
}
}
public CompoundShapes()
{
{
BodyDef bd = new BodyDef();
bd.Position.Set(0.0f, -10.0f);
Body body = _world.CreateBody(bd);
PolygonDef sd = new PolygonDef();
sd.SetAsBox(50.0f, 10.0f);
body.CreateShape(sd);
}
{
CircleDef sd1 = new CircleDef();
sd1.Radius = 0.5f;
sd1.LocalPosition.Set(-0.5f, 0.5f);
sd1.Density = 2.0f;
CircleDef sd2 = new CircleDef();
sd2.Radius = 0.5f;
sd2.LocalPosition.Set(0.5f, 0.5f);
sd2.Density = 0.0f; // massless
for (int i = 0; i < 10; ++i)
{
float x = Box2DX.Common.Math.Random(-0.1f, 0.1f);
BodyDef bd = new BodyDef();
bd.Position.Set(x + 5.0f, 1.05f + 2.5f * i);
bd.Angle = Box2DX.Common.Math.Random(-Box2DX.Common.Settings.Pi, Box2DX.Common.Settings.Pi);
Body body = _world.CreateBody(bd);
body.CreateShape(sd1);
body.CreateShape(sd2);
body.SetMassFromShapes();
}
}
{
PolygonDef sd1 = new PolygonDef();
sd1.SetAsBox(0.25f, 0.5f);
sd1.Density = 2.0f;
PolygonDef sd2 = new PolygonDef();
sd2.SetAsBox(0.25f, 0.5f, new Vec2(0.0f, -0.5f), 0.5f * Box2DX.Common.Settings.Pi);
sd2.Density = 2.0f;
for (int i = 0; i < 10; ++i)
{
float x = Box2DX.Common.Math.Random(-0.1f, 0.1f);
BodyDef bd = new BodyDef();
bd.Position.Set(x - 5.0f, 1.05f + 2.5f * i);
bd.Angle = Box2DX.Common.Math.Random(-Box2DX.Common.Settings.Pi, Box2DX.Common.Settings.Pi);
Body body = _world.CreateBody(bd);
body.CreateShape(sd1);
body.CreateShape(sd2);
body.SetMassFromShapes();
}
}
{
XForm xf1 = new XForm();
xf1.R.Set(0.3524f * Box2DX.Common.Settings.Pi);
xf1.Position = Box2DX.Common.Math.Mul(xf1.R, new Vec2(1.0f, 0.0f));
PolygonDef sd1 = new PolygonDef();
sd1.VertexCount = 3;
sd1.Vertices[0] = Box2DX.Common.Math.Mul(xf1, new Vec2(-1.0f, 0.0f));
sd1.Vertices[1] = Box2DX.Common.Math.Mul(xf1, new Vec2(1.0f, 0.0f));
sd1.Vertices[2] = Box2DX.Common.Math.Mul(xf1, new Vec2(0.0f, 0.5f));
sd1.Density = 2.0f;
XForm xf2 = new XForm();
xf2.R.Set(-0.3524f * Box2DX.Common.Settings.Pi);
xf2.Position = Box2DX.Common.Math.Mul(xf2.R, new Vec2(-1.0f, 0.0f));
PolygonDef sd2 = new PolygonDef();
sd2.VertexCount = 3;
sd2.Vertices[0] = Box2DX.Common.Math.Mul(xf2, new Vec2(-1.0f, 0.0f));
sd2.Vertices[1] = Box2DX.Common.Math.Mul(xf2, new Vec2(1.0f, 0.0f));
sd2.Vertices[2] = Box2DX.Common.Math.Mul(xf2, new Vec2(0.0f, 0.5f));
sd2.Density = 2.0f;
for (int i = 0; i < 10; ++i)
{
float x = Box2DX.Common.Math.Random(-0.1f, 0.1f);
BodyDef bd = new BodyDef();
bd.Position.Set(x, 2.05f + 2.5f * i);
bd.Angle = 0.0f;
Body body = _world.CreateBody(bd);
body.CreateShape(sd1);
body.CreateShape(sd2);
body.SetMassFromShapes();
}
}
{
PolygonDef sd_bottom = new PolygonDef();
sd_bottom.SetAsBox(1.5f, 0.15f);
sd_bottom.Density = 4.0f;
PolygonDef sd_left = new PolygonDef();
sd_left.SetAsBox(0.15f, 2.7f, new Vec2(-1.45f, 2.35f), 0.2f);
sd_left.Density = 4.0f;
PolygonDef sd_right = new PolygonDef();
sd_right.SetAsBox(0.15f, 2.7f, new Vec2(1.45f, 2.35f), -0.2f);
sd_right.Density = 4.0f;
BodyDef bd = new BodyDef();
bd.Position.Set(0.0f, 2.0f);
Body body = _world.CreateBody(bd);
body.CreateShape(sd_bottom);
body.CreateShape(sd_left);
body.CreateShape(sd_right);
body.SetMassFromShapes();
}
}
public CollisionProcessing()
{
// Ground body
{
PolygonDef sd = new PolygonDef();
sd.SetAsBox(50.0f, 10.0f);
sd.Friction = 0.3f;
BodyDef bd = new BodyDef();
bd.Position.Set(0.0f, -10.0f);
Body ground = _world.CreateBody(bd);
ground.CreateShape(sd);
}
float xLo = -5.0f, xHi = 5.0f;
float yLo = 2.0f, yHi = 35.0f;
// Small triangle
PolygonDef triangleShapeDef = new PolygonDef();
triangleShapeDef.VertexCount = 3;
triangleShapeDef.Vertices[0].Set(-1.0f, 0.0f);
triangleShapeDef.Vertices[1].Set(1.0f, 0.0f);
triangleShapeDef.Vertices[2].Set(0.0f, 2.0f);
triangleShapeDef.Density = 1.0f;
BodyDef triangleBodyDef = new BodyDef();
//triangleBodyDef.Position.Set(Box2DX.Common.Math.Random(xLo, xHi), Box2DX.Common.Math.Random(yLo, yHi));
triangleBodyDef.Position.Set(Box2DX.Common.Math.Random(xLo, xHi), 35f);
Body body1 = _world.CreateBody(triangleBodyDef);
body1.CreateShape(triangleShapeDef);
body1.SetMassFromShapes();
// Large triangle (recycle definitions)
triangleShapeDef.Vertices[0] *= 2.0f;
triangleShapeDef.Vertices[1] *= 2.0f;
triangleShapeDef.Vertices[2] *= 2.0f;
//triangleBodyDef.Position.Set(Box2DX.Common.Math.Random(xLo, xHi), Box2DX.Common.Math.Random(yLo, yHi));
triangleBodyDef.Position.Set(Box2DX.Common.Math.Random(xLo, xHi), 30f);
Body body2 = _world.CreateBody(triangleBodyDef);
body2.CreateShape(triangleShapeDef);
body2.SetMassFromShapes();
// Small box
PolygonDef boxShapeDef = new PolygonDef();
boxShapeDef.SetAsBox(1.0f, 0.5f);
boxShapeDef.Density = 1.0f;
BodyDef boxBodyDef = new BodyDef();
//boxBodyDef.Position.Set(Box2DX.Common.Math.Random(xLo, xHi), Box2DX.Common.Math.Random(yLo, yHi));
boxBodyDef.Position.Set(Box2DX.Common.Math.Random(xLo, xHi), 25f);
Body body3 = _world.CreateBody(boxBodyDef);
body3.CreateShape(boxShapeDef);
body3.SetMassFromShapes();
// Large box (recycle definitions)
boxShapeDef.SetAsBox(2.0f, 1.0f);
//boxBodyDef.Position.Set(Box2DX.Common.Math.Random(xLo, xHi), Box2DX.Common.Math.Random(yLo, yHi));
boxBodyDef.Position.Set(Box2DX.Common.Math.Random(xLo, xHi), 15f);
Body body4 = _world.CreateBody(boxBodyDef);
body4.CreateShape(boxShapeDef);
body4.SetMassFromShapes();
// Small circle
CircleDef circleShapeDef = new CircleDef();
circleShapeDef.Radius = 1.0f;
circleShapeDef.Density = 1.0f;
BodyDef circleBodyDef = new BodyDef();
//circleBodyDef.Position.Set(Box2DX.Common.Math.Random(xLo, xHi), Box2DX.Common.Math.Random(yLo, yHi));
circleBodyDef.Position.Set(Box2DX.Common.Math.Random(xLo, xHi), 10f);
Body body5 = _world.CreateBody(circleBodyDef);
body5.CreateShape(circleShapeDef);
body5.SetMassFromShapes();
// Large circle
circleShapeDef.Radius *= 2.0f;
//circleBodyDef.Position.Set(Box2DX.Common.Math.Random(xLo, xHi), Box2DX.Common.Math.Random(yLo, yHi));
circleBodyDef.Position.Set(Box2DX.Common.Math.Random(xLo, xHi), 5f);
Body body6 = _world.CreateBody(circleBodyDef);
body6.CreateShape(circleShapeDef);
body6.SetMassFromShapes();
}
public Dominos()
{
Body b1;
{
PolygonDef sd = new PolygonDef();
sd.SetAsBox(50.0f, 10.0f);
BodyDef bd = new BodyDef();
bd.Position.Set(0.0f, -10.0f);
b1 = _world.CreateBody(bd);
b1.CreateShape(sd);
}
{
PolygonDef sd = new PolygonDef();
sd.SetAsBox(6.0f, 0.25f);
BodyDef bd = new BodyDef();
bd.Position.Set(-1.5f, 10.0f);
Body ground = _world.CreateBody(bd);
ground.CreateShape(sd);
}
{
PolygonDef sd = new PolygonDef();
sd.SetAsBox(0.1f, 1.0f);
sd.Density = 20.0f;
sd.Friction = 0.1f;
for (int i = 0; i < 10; ++i)
{
BodyDef bd = new BodyDef();
bd.Position.Set(-6.0f + 1.0f * i, 11.25f);
Body body = _world.CreateBody(bd);
body.CreateShape(sd);
body.SetMassFromShapes();
}
}
{
PolygonDef sd = new PolygonDef();
sd.SetAsBox(7.0f, 0.25f, Vec2.Zero, 0.3f);
BodyDef bd = new BodyDef();
bd.Position.Set(1.0f, 6.0f);
Body ground = _world.CreateBody(bd);
ground.CreateShape(sd);
}
Body b2;
{
PolygonDef sd = new PolygonDef();
sd.SetAsBox(0.25f, 1.5f);
BodyDef bd = new BodyDef();
bd.Position.Set(-7.0f, 4.0f);
b2 = _world.CreateBody(bd);
b2.CreateShape(sd);
}
Body b3;
{
PolygonDef sd = new PolygonDef();
sd.SetAsBox(6.0f, 0.125f);
sd.Density = 10.0f;
BodyDef bd = new BodyDef();
bd.Position.Set(-0.9f, 1.0f);
bd.Angle = -0.15f;
b3 = _world.CreateBody(bd);
b3.CreateShape(sd);
b3.SetMassFromShapes();
}
RevoluteJointDef jd = new RevoluteJointDef();
Vec2 anchor = new Vec2();
anchor.Set(-2.0f, 1.0f);
jd.Initialize(b1, b3, anchor);
jd.CollideConnected = true;
_world.CreateJoint(jd);
Body b4;
{
PolygonDef sd = new PolygonDef();
sd.SetAsBox(0.25f, 0.25f);
sd.Density = 10.0f;
BodyDef bd = new BodyDef();
bd.Position.Set(-10.0f, 15.0f);
b4 = _world.CreateBody(bd);
b4.CreateShape(sd);
b4.SetMassFromShapes();
}
anchor.Set(-7.0f, 15.0f);
jd.Initialize(b2, b4, anchor);
_world.CreateJoint(jd);
Body b5;
{
BodyDef bd = new BodyDef();
bd.Position.Set(6.5f, 3.0f);
b5 = _world.CreateBody(bd);
PolygonDef sd = new PolygonDef();
sd.Density = 10.0f;
sd.Friction = 0.1f;
sd.SetAsBox(1.0f, 0.1f, new Vec2(0.0f, -0.9f), 0.0f);
b5.CreateShape(sd);
sd.SetAsBox(0.1f, 1.0f, new Vec2(-0.9f, 0.0f), 0.0f);
b5.CreateShape(sd);
sd.SetAsBox(0.1f, 1.0f, new Vec2(0.9f, 0.0f), 0.0f);
b5.CreateShape(sd);
b5.SetMassFromShapes();
}
anchor.Set(6.0f, 2.0f);
jd.Initialize(b1, b5, anchor);
_world.CreateJoint(jd);
Body b6;
{
PolygonDef sd = new PolygonDef();
sd.SetAsBox(1.0f, 0.1f);
sd.Density = 30.0f;
sd.Friction = 0.2f;
BodyDef bd = new BodyDef();
bd.Position.Set(6.5f, 4.1f);
b6 = _world.CreateBody(bd);
b6.CreateShape(sd);
b6.SetMassFromShapes();
}
anchor.Set(7.5f, 4.0f);
jd.Initialize(b5, b6, anchor);
_world.CreateJoint(jd);
Body b7;
{
PolygonDef sd = new PolygonDef();
sd.SetAsBox(0.1f, 1.0f);
sd.Density = 10.0f;
BodyDef bd = new BodyDef();
bd.Position.Set(7.4f, 1.0f);
b7 = _world.CreateBody(bd);
b7.CreateShape(sd);
b7.SetMassFromShapes();
}
DistanceJointDef djd = new DistanceJointDef();
djd.Body1 = b3;
djd.Body2 = b7;
djd.LocalAnchor1.Set(6.0f, 0.0f);
djd.LocalAnchor2.Set(0.0f, -1.0f);
Vec2 d = djd.Body2.GetWorldPoint(djd.LocalAnchor2) - djd.Body1.GetWorldPoint(djd.LocalAnchor1);
djd.Length = d.Length();
_world.CreateJoint(djd);
{
CircleDef sd = new CircleDef();
sd.Radius = 0.2f;
sd.Density = 10.0f;
for (int i = 0; i < 4; ++i)
{
BodyDef bd = new BodyDef();
bd.Position.Set(5.9f + 2.0f * sd.Radius * i, 2.4f);
Body body = _world.CreateBody(bd);
body.CreateShape(sd);
body.SetMassFromShapes();
}
}
}
List<Vec2> vertices = new List<Vec2>(); // we need this for drawing between the vertices
#endregion Fields
#region Constructors
/**
* Creates a new drawn object
*/
public PaintedObject(World world, string blobtexturename, string segmenttexturename, List<Vector2> unsanitized_blobs)
: base(world, blobtexturename, POB_DENSITY, POB_FRICTION, POB_RESTITUTION, 1f)
{
List<Vector2> blobs = SanitizeBlobs(unsanitized_blobs);
if (blobs.Count == 0)
return;
Position = blobs[0]; // CASSWorld.SCALE; // position of the painting is the first blob in it
Texture2D segmenttexture = GameEngine.TextureList[segmenttexturename];
Texture2D blobtexture = GameEngine.TextureList[blobtexturename];
this.blobTextureName = blobtexturename;
this.segmentTextureName = segmenttexturename;
TextureFilename = segmenttexturename;
//boundingBox = new Rectangle((int)Position.X, (int)Position.Y, (int)Height, (int)Width);
segmentTexture = segmenttexture;
blobTexture = blobtexture;
radius = (float)(blobtexture.Width) / (2 * CASSWorld.SCALE);
//radius = (float)(blobtexture.Width - 6) / (2 * CASSWorld.SCALE);
//radius = 4 / CASSWorld.SCALE; // really small physics object to keep cosmo from stubbing his toes
// calculate amount of instasteel that was taken from this object during sanitation so we can return it to you
float origamount = 0;
for (int i = 0; i < unsanitized_blobs.Count - 1; i++)
{
origamount += Vector2.Distance(unsanitized_blobs[i], unsanitized_blobs[i + 1]) * CASSWorld.SCALE;
}
//foreach (Vector2 blobpos in blobs)
for (int i=0; i<blobs.Count-1; i++)
{
// Vector2 localpos = (blobs[i] / CASSWorld.SCALE) - Position;
//Vector2 localpos2 = (blobs[i+1] / CASSWorld.SCALE) - Position;
Vector2 localpos = blobs[i] - Position;
Vector2 localpos2 = blobs[i+1]- Position;
amountOfInstasteel += Vector2.Distance(blobs[i], blobs[i + 1]) * CASSWorld.SCALE; // moved above
// add a circle fixture to this object at each point
CircleDef circle = new CircleDef();
circle.LocalPosition = Common.Utils.Convert(localpos);
circle.Radius = radius;
circle.Density = POB_DENSITY;
circle.Friction = POB_FRICTION;
circle.Restitution = POB_RESTITUTION;
shapes.Add(circle);
float scaledTextureWidth = segmentTexture.Width / CASSWorld.SCALE;
Vector2 shapeVec = localpos2 - localpos;
shapeVec.Normalize();
Vector2 cornerOrtho = new Vector2(-shapeVec.Y, shapeVec.X);// * segmentTexture.Width / 2;
// manually calculate the positions of each corner of the box/line between localpos and localpos2
Vector2[] cornerpoints = new Vector2[] { // if box were lying flat...
localpos - cornerOrtho * scaledTextureWidth / 2, // lower-left corner
localpos2 - cornerOrtho * scaledTextureWidth / 2, // lower-right corner
localpos2 + cornerOrtho * scaledTextureWidth / 2, // upper-right corner
localpos + cornerOrtho * scaledTextureWidth / 2 // upper-left corner
};
LinkedList<int> polygon = new LinkedList<int>();
for (int j = 0; j < cornerpoints.Length; j++)
polygon.AddLast(j);
// Triangles generated
List<Vector2[]> triangles = new List<Vector2[]>();
Split(polygon, cornerpoints, triangles);
CreateShapes(triangles, POB_DENSITY, POB_FRICTION, POB_RESTITUTION);
vertices.Add(Common.Utils.Convert(localpos)); // that is, vertices of the curve approximation
numBlobs++;
}
// return the instasteel that was taken from you during sanitation of your drawing
ScrollingWorld.numDrawLeft += (origamount - amountOfInstasteel);
// add the last vertex
//Vector2 lastlocalpos = (blobs[blobs.Count - 1] / CASSWorld.SCALE) - Position;
//vertices.Add(Common.Utils.Convert(lastlocalpos));
Vector2 lastlocalpos = blobs[blobs.Count - 1]- Position;
vertices.Add(Utils.Convert(lastlocalpos));
numBlobs++;
}
public TheoJansen()
{
_offset.Set(0.0f, 8.0f);
_motorSpeed = 2.0f;
_motorOn = true;
Vec2 pivot = new Vec2(0.0f, 0.8f);
{
PolygonDef sd = new PolygonDef();
sd.SetAsBox(50.0f, 10.0f);
BodyDef bd = new BodyDef();
bd.Position.Set(0.0f, -10.0f);
Body ground = _world.CreateBody(bd);
ground.CreateShape(sd);
sd.SetAsBox(0.5f, 5.0f, new Vec2(-50.0f, 15.0f), 0.0f);
ground.CreateShape(sd);
sd.SetAsBox(0.5f, 5.0f, new Vec2(50.0f, 15.0f), 0.0f);
ground.CreateShape(sd);
}
for (int i = 0; i < 40; ++i)
{
CircleDef sd = new CircleDef();
sd.Density = 1.0f;
sd.Radius = 0.25f;
BodyDef bd = new BodyDef();
bd.Position.Set(-40.0f + 2.0f * i, 0.5f);
Body body = _world.CreateBody(bd);
body.CreateShape(sd);
body.SetMassFromShapes();
}
{
PolygonDef sd = new PolygonDef();
sd.Density = 1.0f;
sd.SetAsBox(2.5f, 1.0f);
sd.Filter.GroupIndex = -1;
BodyDef bd = new BodyDef();
bd.Position = pivot + _offset;
_chassis = _world.CreateBody(bd);
_chassis.CreateShape(sd);
_chassis.SetMassFromShapes();
}
{
CircleDef sd = new CircleDef();
sd.Density = 1.0f;
sd.Radius = 1.6f;
sd.Filter.GroupIndex = -1;
BodyDef bd = new BodyDef();
bd.Position = pivot + _offset;
_wheel = _world.CreateBody(bd);
_wheel.CreateShape(sd);
_wheel.SetMassFromShapes();
}
{
RevoluteJointDef jd = new RevoluteJointDef();
jd.Initialize(_wheel, _chassis, pivot + _offset);
jd.CollideConnected = false;
jd.MotorSpeed = _motorSpeed;
jd.MaxMotorTorque = 400.0f;
jd.EnableMotor = _motorOn;
_motorJoint = (RevoluteJoint)_world.CreateJoint(jd);
}
Vec2 wheelAnchor;
wheelAnchor = pivot + new Vec2(0.0f, -0.8f);
CreateLeg(-1.0f, wheelAnchor);
CreateLeg(1.0f, wheelAnchor);
_wheel.SetXForm(_wheel.GetPosition(), 120.0f * Box2DX.Common.Settings.Pi / 180.0f);
CreateLeg(-1.0f, wheelAnchor);
CreateLeg(1.0f, wheelAnchor);
_wheel.SetXForm(_wheel.GetPosition(), -120.0f * Box2DX.Common.Settings.Pi / 180.0f);
CreateLeg(-1.0f, wheelAnchor);
CreateLeg(1.0f, wheelAnchor);
}
void LaunchBomb()
{
if (bomb != null)
{
world.DestroyBody(bomb);
bomb = null;
}
BodyDef bd = new BodyDef();
bd.BodyType = BodyType.e_dynamicBody;
bd.AllowSleep = true;
Random rand = new Random();
bd.Position = new Vector((float)rand.NextDouble() * 30 - 15, 30.0f);
bd.IsBullet = true;
bomb = world.CreateBody(bd);
bomb.LinearVelocity = bd.Position * -5;
CircleDef sd = new CircleDef();
sd.Radius = 0.3f;
sd.Density = 20.0f;
sd.Restitution = 0.1f;
bomb.CreateShape(sd);
bomb.SetMassFromShapes();
}
public override void Keyboard(System.Windows.Forms.Keys key)
{
switch (key)
{
case System.Windows.Forms.Keys.S:
if (_bullet != null)
{
_world.DestroyBody(_bullet);
_bullet = null;
}
{
CircleDef sd = new CircleDef();
sd.Density = 20.0f;
sd.Radius = 0.25f;
sd.Restitution = 0.05f;
BodyDef bd = new BodyDef();
bd.IsBullet = true;
bd.AllowSleep = false;
bd.Position.Set(-31.0f, 5.0f);
_bullet = _world.CreateBody(bd);
_bullet.CreateShape(sd);
_bullet.SetMassFromShapes();
_bullet.SetLinearVelocity(new Vec2(400.0f, 0.0f));
}
break;
}
}
public virtual void InitPhysics()
{
if (_physBody != null)
{
Log.Instance.Log("WARNING: Call to InitPhysics had no effect. Actor has already had physics initialized.");
return;
}
ShapeType shapeType = ShapeType.Box;
Box2D.World physicsWorld = Angel.World.Instance.PhysicsWorld;
ShapeDef shape;
switch (shapeType)
{
case ShapeType.Box:
PolygonDef box = new PolygonDef();
box.SetAsBox(0.5f * Size.X, 0.5f * Size.Y);
shape = box;
break;
case ShapeType.Circle:
CircleDef circle = new CircleDef();
circle.Radius = 0.5f * Size.X;
shape = circle;
break;
default:
Log.Instance.Log("InitPhysics(): Invalid shape type given");
return;
}
shape.Density = _fDensity;
shape.Friction = _fFriction;
shape.Restitution = _fRestitution;
shape.IsSensor = _bIsSensor;
if (_iCollisionFlags != -1)
{
//shape->maskBits = (short)collisionFlags;
//shape->categoryBits = (short)collisionFlags;
}
// InitShape( shape );
BodyDef bodyDef = new BodyDef();
bodyDef.UserData = this;
bodyDef.Position = this.Position;
bodyDef.Angle = MathHelper.ToRadians(-Rotation);
bodyDef.FixedRotation = _bFixedRotation;
_physBody = physicsWorld.CreateBody(bodyDef);
_physBody.CreateShape(shape);
_physBody.SetMassFromShapes();
CustomInitPhysics();
}
public PlayerCharacter(World _world, Vector2 _position)
: base(_world, _position)
{
playerIndex = playerCount++;
color = PlayerCharacter.Colors[playerIndex];
accelerate = 0;
rotate = 0;
isDead = false;
this.angVelocity = 0;
//build the unicycle
CircleDef circleDef = new CircleDef();
circleDef.Radius = 1;
circleDef.Density = 1f;
circleDef.Friction = 1.0f;
circleDef.Restitution = 0.0f;
circleDef.LocalPosition.Set(0, 0);
wheel = body.CreateShape(circleDef);
body.SetMassFromShapes();
body.SetUserData(this); // link body and this to register collisions in this
//build the head and connect with the wheel
BodyDef bodydef = new BodyDef();
bodydef.Position = _position + new Vector2(0.0f, 3.5f);
bodydef.Angle = 0f;
chest = _world.CreateBody(bodydef);
//add the head
circleDef.Density = 0.0001f;
circleDef.Radius = 0.75f;
circleDef.LocalPosition.Set(0, 3);
head = chest.CreateShape(circleDef);
rotationHead = _position;
PolygonDef Boxdef = new PolygonDef();
Boxdef.SetAsBox(1, 1.5f);
Boxdef.Density = 0.25f;
Boxdef.Friction = 0.4f;
Box2DX.Collision.Shape s2 = chest.CreateShape(Boxdef);
chest.SetMassFromShapes();
chest.SetUserData(this);
//Jointshit
RevoluteJointDef jointDefKW = new RevoluteJointDef();
jointDefKW.Body2 = chest;
jointDefKW.Body1 = body;
jointDefKW.CollideConnected = false;
jointDefKW.LocalAnchor2 = new Vector2(-0.0f, -3.8f);
jointDefKW.LocalAnchor1 = new Vector2(0, 0);
jointDefKW.EnableLimit = false;
_world.CreateJoint(jointDefKW);
// add visuals
Texture wheelTexture = AssetManager.getTexture(AssetManager.TextureName.ShoopWheel);
wheelSprite = new AnimatedSprite(wheelTexture, 1.0f, 1, (Vector2)wheelTexture.Size);
wheelSprite.Scale = Constants.windowScaleFactor * new Vector2(0.2f, 0.2f); //(Vector2.One / (Vector2)wheelTexture.Size * 2F * circleDef.Radius).toScreenCoord() - Vector2.Zero.toScreenCoord();//new Vector2(0.08f, 0.08f);
wheelSprite.Origin = ((Vector2)wheelSprite.spriteSize) / 2F;
sheepSprite = new Sprite(AssetManager.getTexture(AssetManager.TextureName.ShoopInfronUnicycle));
sheepSprite.Origin = ((Vector2)sheepSprite.Texture.Size) / 2F;
sheepSprite.Scale = Constants.windowScaleFactor * new Vector2(_position.X > Constants.worldSizeX / 2F ? -0.2f : 0.2f, 0.2f);
}
public Car()
{
{ // car body
PolygonDef poly1 = new PolygonDef(), poly2 = new PolygonDef();
// bottom half
poly1.VertexCount = 5;
poly1.Vertices[4].Set(-2.2f, -0.74f);
poly1.Vertices[3].Set(-2.2f, 0);
poly1.Vertices[2].Set(1.0f, 0);
poly1.Vertices[1].Set(2.2f, -0.2f);
poly1.Vertices[0].Set(2.2f, -0.74f);
poly1.Filter.GroupIndex = -1;
poly1.Density = 20.0f;
poly1.Friction = 0.68f;
poly1.Filter.GroupIndex = -1;
// top half
poly2.VertexCount = 4;
poly2.Vertices[3].Set(-1.7f, 0);
poly2.Vertices[2].Set(-1.3f, 0.7f);
poly2.Vertices[1].Set(0.5f, 0.74f);
poly2.Vertices[0].Set(1.0f, 0);
poly2.Filter.GroupIndex = -1;
poly2.Density = 5.0f;
poly2.Friction = 0.68f;
poly2.Filter.GroupIndex = -1;
BodyDef bd = new BodyDef();
bd.Position.Set(-35.0f, 2.8f);
_vehicle = _world.CreateBody(bd);
_vehicle.CreateShape(poly1);
_vehicle.CreateShape(poly2);
_vehicle.SetMassFromShapes();
}
{ // vehicle wheels
CircleDef circ = new CircleDef();
circ.Density = 40.0f;
circ.Radius = 0.38608f;
circ.Friction = 0.8f;
circ.Filter.GroupIndex = -1;
BodyDef bd = new BodyDef();
bd.AllowSleep = false;
bd.Position.Set(-33.8f, 2.0f);
_rightWheel = _world.CreateBody(bd);
_rightWheel.CreateShape(circ);
_rightWheel.SetMassFromShapes();
bd.Position.Set(-36.2f, 2.0f);
_leftWheel = _world.CreateBody(bd);
_leftWheel.CreateShape(circ);
_leftWheel.SetMassFromShapes();
}
{ // join wheels to chassis
Vec2 anchor = new Vec2();
RevoluteJointDef jd = new RevoluteJointDef();
jd.Initialize(_vehicle, _leftWheel, _leftWheel.GetWorldCenter());
jd.CollideConnected = false;
jd.EnableMotor = true;
jd.MaxMotorTorque = 10.0f;
jd.MotorSpeed = 0.0f;
_leftJoint = (RevoluteJoint)_world.CreateJoint(jd);
jd.Initialize(_vehicle, _rightWheel, _rightWheel.GetWorldCenter());
jd.CollideConnected = false;
_rightJoint = (RevoluteJoint)_world.CreateJoint(jd);
}
{ // ground
PolygonDef box = new PolygonDef();
box.SetAsBox(19.5f, 0.5f);
box.Friction = 0.62f;
BodyDef bd = new BodyDef();
bd.Position.Set(-25.0f, 1.0f);
Body ground = _world.CreateBody(bd);
ground.CreateShape(box);
}
{ // more ground
PolygonDef box = new PolygonDef();
BodyDef bd = new BodyDef();
box.SetAsBox(9.5f, 0.5f, Vec2.Zero, 0.1f * Box2DX.Common.Settings.Pi);
box.Friction = 0.62f;
bd.Position.Set(27.0f - 30.0f, 3.1f);
Body ground = _world.CreateBody(bd);
ground.CreateShape(box);
}
{ // more ground
PolygonDef box = new PolygonDef();
BodyDef bd = new BodyDef();
box.SetAsBox(9.5f, 0.5f, Vec2.Zero, -0.1f * Box2DX.Common.Settings.Pi);
box.Friction = 0.62f;
bd.Position.Set(55.0f - 30.0f, 3.1f);
Body ground = _world.CreateBody(bd);
ground.CreateShape(box);
}
{ // more ground
PolygonDef box = new PolygonDef();
BodyDef bd = new BodyDef();
box.SetAsBox(9.5f, 0.5f, Vec2.Zero, 0.03f * Box2DX.Common.Settings.Pi);
box.Friction = 0.62f;
bd.Position.Set(41.0f, 2.0f);
Body ground = _world.CreateBody(bd);
ground.CreateShape(box);
}
{ // more ground
PolygonDef box = new PolygonDef();
BodyDef bd = new BodyDef();
box.SetAsBox(5.0f, 0.5f, Vec2.Zero, 0.15f * Box2DX.Common.Settings.Pi);
box.Friction = 0.62f;
bd.Position.Set(50.0f, 4.0f);
Body ground = _world.CreateBody(bd);
ground.CreateShape(box);
}
{ // more ground
PolygonDef box = new PolygonDef();
BodyDef bd = new BodyDef();
box.SetAsBox(20.0f, 0.5f);
box.Friction = 0.62f;
bd.Position.Set(85.0f, 2.0f);
Body ground = _world.CreateBody(bd);
ground.CreateShape(box);
}
}
public void LaunchBomb()
{
if (_bomb != null)
{
_world.DestroyBody(_bomb);
_bomb = null;
}
BodyDef bd = new BodyDef();
bd.AllowSleep = true;
bd.Position.Set(Box2DX.Common.Math.Random(-15.0f, 15.0f), 30.0f);
bd.IsBullet = true;
_bomb = _world.CreateBody(bd);
_bomb.SetLinearVelocity(-5.0f * bd.Position);
CircleDef sd = new CircleDef();
sd.Radius = 0.3f;
sd.Density = 20.0f;
sd.Restitution = 0.1f;
_bomb.CreateShape(sd);
_bomb.SetMassFromShapes();
}
public CollisionProcessing()
{
// Ground body
{
PolygonDef sd = new PolygonDef();
sd.SetAsBox(50.0f, 10.0f);
sd.Friction = 0.3f;
BodyDef bd = new BodyDef();
bd.Position.Set(0.0f, -10.0f);
Body ground = _world.CreateBody(bd);
ground.CreateShape(sd);
}
float xLo = -5.0f, xHi = 5.0f;
float yLo = 2.0f, yHi = 35.0f;
// Small triangle
PolygonDef triangleShapeDef = new PolygonDef();
triangleShapeDef.VertexCount = 3;
triangleShapeDef.Vertices[0].Set(-1.0f, 0.0f);
triangleShapeDef.Vertices[1].Set(1.0f, 0.0f);
triangleShapeDef.Vertices[2].Set(0.0f, 2.0f);
triangleShapeDef.Density = 1.0f;
BodyDef triangleBodyDef = new BodyDef();
//triangleBodyDef.Position.Set(Box2DX.Common.Math.Random(xLo, xHi), Box2DX.Common.Math.Random(yLo, yHi));
triangleBodyDef.Position.Set(Box2DX.Common.Math.Random(xLo, xHi), 35f);
Body body1 = _world.CreateBody(triangleBodyDef);
body1.CreateShape(triangleShapeDef);
body1.SetMassFromShapes();
// Large triangle (recycle definitions)
triangleShapeDef.Vertices[0] *= 2.0f;
triangleShapeDef.Vertices[1] *= 2.0f;
triangleShapeDef.Vertices[2] *= 2.0f;
//triangleBodyDef.Position.Set(Box2DX.Common.Math.Random(xLo, xHi), Box2DX.Common.Math.Random(yLo, yHi));
triangleBodyDef.Position.Set(Box2DX.Common.Math.Random(xLo, xHi), 30f);
Body body2 = _world.CreateBody(triangleBodyDef);
body2.CreateShape(triangleShapeDef);
body2.SetMassFromShapes();
// Small box
PolygonDef boxShapeDef = new PolygonDef();
boxShapeDef.SetAsBox(1.0f, 0.5f);
boxShapeDef.Density = 1.0f;
BodyDef boxBodyDef = new BodyDef();
//boxBodyDef.Position.Set(Box2DX.Common.Math.Random(xLo, xHi), Box2DX.Common.Math.Random(yLo, yHi));
boxBodyDef.Position.Set(Box2DX.Common.Math.Random(xLo, xHi), 25f);
Body body3 = _world.CreateBody(boxBodyDef);
body3.CreateShape(boxShapeDef);
body3.SetMassFromShapes();
// Large box (recycle definitions)
boxShapeDef.SetAsBox(2.0f, 1.0f);
//boxBodyDef.Position.Set(Box2DX.Common.Math.Random(xLo, xHi), Box2DX.Common.Math.Random(yLo, yHi));
boxBodyDef.Position.Set(Box2DX.Common.Math.Random(xLo, xHi), 15f);
Body body4 = _world.CreateBody(boxBodyDef);
body4.CreateShape(boxShapeDef);
body4.SetMassFromShapes();
// Small circle
CircleDef circleShapeDef = new CircleDef();
circleShapeDef.Radius = 1.0f;
circleShapeDef.Density = 1.0f;
BodyDef circleBodyDef = new BodyDef();
//circleBodyDef.Position.Set(Box2DX.Common.Math.Random(xLo, xHi), Box2DX.Common.Math.Random(yLo, yHi));
circleBodyDef.Position.Set(Box2DX.Common.Math.Random(xLo, xHi), 10f);
Body body5 = _world.CreateBody(circleBodyDef);
body5.CreateShape(circleShapeDef);
body5.SetMassFromShapes();
// Large circle
circleShapeDef.Radius *= 2.0f;
//circleBodyDef.Position.Set(Box2DX.Common.Math.Random(xLo, xHi), Box2DX.Common.Math.Random(yLo, yHi));
circleBodyDef.Position.Set(Box2DX.Common.Math.Random(xLo, xHi), 5f);
Body body6 = _world.CreateBody(circleBodyDef);
body6.CreateShape(circleShapeDef);
body6.SetMassFromShapes();
}
public CCDTest()
{
const float k_restitution = 1.4f;
{
BodyDef bd = new BodyDef();
bd.Position.Set(0.0f, 20.0f);
Body body = _world.CreateBody(bd);
PolygonDef sd = new PolygonDef();
sd.Density = 0.0f;
sd.Restitution = k_restitution;
sd.SetAsBox(0.1f, 10.0f, new Vec2(-10.0f, 0.0f), 0.0f);
body.CreateShape(sd);
sd.SetAsBox(0.1f, 10.0f, new Vec2(10.0f, 0.0f), 0.0f);
body.CreateShape(sd);
sd.SetAsBox(0.1f, 10.0f, new Vec2(0.0f, -10.0f), 0.5f * Box2DX.Common.Settings.Pi);
body.CreateShape(sd);
sd.SetAsBox(0.1f, 10.0f, new Vec2(0.0f, 10.0f), -0.5f * Box2DX.Common.Settings.Pi);
body.CreateShape(sd);
}
{
PolygonDef sd_bottom = new PolygonDef();
sd_bottom.SetAsBox( 1.5f, 0.15f );
sd_bottom.Density = 4.0f;
PolygonDef sd_left = new PolygonDef();
sd_left.SetAsBox(0.15f, 2.7f, new Vec2(-1.45f, 2.35f), 0.2f);
sd_left.Density = 4.0f;
PolygonDef sd_right = new PolygonDef();
sd_right.SetAsBox(0.15f, 2.7f, new Vec2(1.45f, 2.35f), -0.2f);
sd_right.Density = 4.0f;
BodyDef bd = new BodyDef();
bd.Position.Set( 0.0f, 15.0f );
Body body = _world.CreateBody(bd);
body.CreateShape(sd_bottom);
body.CreateShape(sd_left);
body.CreateShape(sd_right);
body.SetMassFromShapes();
}
for (int i = 0; i < 0; ++i)
{
BodyDef bd = new BodyDef();
bd.Position.Set(0.0f, 15.0f + i);
bd.IsBullet = true;
Body body = _world.CreateBody(bd);
body.SetAngularVelocity(Box2DX.Common.Math.Random(-50.0f, 50.0f));
CircleDef sd = new CircleDef();
sd.Radius = 0.25f;
sd.Density = 1.0f;
sd.Restitution = 0.0f;
body.CreateShape(sd);
body.SetMassFromShapes();
}
}
private Body CreatePole(Vec2 basePos, float angle, float radius, float friction, float restitution, float density, ushort layers)
{
// ==== Create bar. ====
// Determine position of top of pole relative to its center of mass.
Vec2 polePosTopRelative = new Vec2(__ArmLength * (float)-SysMath.Sin(angle), __ArmLength * (float)SysMath.Cos(angle));
Vec2 polePosTop = polePosTopRelative + basePos;
Vec2 polePosCenter = (polePosTopRelative * 0.5f) + basePos;
BodyDef bodyDef = new BodyDef();
bodyDef.Position.Set(polePosCenter.X, polePosCenter.Y);
bodyDef.Angle = angle;
// Create body object; The body is also added to the world.
Body body = _world.CreateBody(bodyDef);
PolygonDef shapeDef = new PolygonDef();
shapeDef.SetAsBox(radius, __ArmLength * 0.5f);
shapeDef.Friction = friction;
shapeDef.Restitution = restitution;
shapeDef.Density = density;
shapeDef.Filter.MaskBits = layers;
shapeDef.Filter.CategoryBits = 0x3;
body.CreateShape(shapeDef);
// ==== Place some end caps on the bar. ====
CircleDef circleDef = new CircleDef();
circleDef.Radius = radius;
circleDef.Friction = friction;
circleDef.Restitution = restitution;
circleDef.Density = 0f;
circleDef.Filter.MaskBits = layers;
circleDef.Filter.CategoryBits = 0x3;
// Top cap.
circleDef.LocalPosition.Set(0f, __ArmLength * 0.5f);
body.CreateShape(circleDef);
// Bottom cap.
circleDef.LocalPosition.Set(0f, -__ArmLength * 0.5f);
body.CreateShape(circleDef);
body.SetMassFromShapes();
return body;
}
public CollisionFiltering()
{
// Ground body
{
PolygonDef sd = new PolygonDef();
sd.SetAsBox(50.0f, 10.0f);
sd.Friction = 0.3f;
BodyDef bd = new BodyDef();
bd.Position.Set(0.0f, -10.0f);
Body ground = _world.CreateBody(bd);
ground.CreateShape(sd);
}
// Small triangle
PolygonDef triangleShapeDef = new PolygonDef();
triangleShapeDef.VertexCount = 3;
triangleShapeDef.Vertices[0].Set(-1.0f, 0.0f);
triangleShapeDef.Vertices[1].Set(1.0f, 0.0f);
triangleShapeDef.Vertices[2].Set(0.0f, 2.0f);
triangleShapeDef.Density = 1.0f;
triangleShapeDef.Filter.GroupIndex = k_smallGroup;
triangleShapeDef.Filter.CategoryBits = k_triangleCategory;
triangleShapeDef.Filter.MaskBits = k_triangleMask;
BodyDef triangleBodyDef = new BodyDef();
triangleBodyDef.Position.Set(-5.0f, 2.0f);
Body body1 = _world.CreateBody(triangleBodyDef);
body1.CreateShape(triangleShapeDef);
body1.SetMassFromShapes();
// Large triangle (recycle definitions)
triangleShapeDef.Vertices[0] *= 2.0f;
triangleShapeDef.Vertices[1] *= 2.0f;
triangleShapeDef.Vertices[2] *= 2.0f;
triangleShapeDef.Filter.GroupIndex = k_largeGroup;
triangleBodyDef.Position.Set(-5.0f, 6.0f);
triangleBodyDef.FixedRotation = true; // look at me!
Body body2 = _world.CreateBody(triangleBodyDef);
body2.CreateShape(triangleShapeDef);
body2.SetMassFromShapes();
// Small box
PolygonDef boxShapeDef = new PolygonDef();
boxShapeDef.SetAsBox(1.0f, 0.5f);
boxShapeDef.Density = 1.0f;
boxShapeDef.Filter.GroupIndex = k_smallGroup;
boxShapeDef.Filter.CategoryBits = k_boxCategory;
boxShapeDef.Filter.MaskBits = k_boxMask;
BodyDef boxBodyDef = new BodyDef();
boxBodyDef.Position.Set(0.0f, 2.0f);
Body body3 = _world.CreateBody(boxBodyDef);
body3.CreateShape(boxShapeDef);
body3.SetMassFromShapes();
// Large box (recycle definitions)
boxShapeDef.SetAsBox(2.0f, 1.0f);
boxShapeDef.Filter.GroupIndex = k_largeGroup;
boxBodyDef.Position.Set(0.0f, 6.0f);
Body body4 = _world.CreateBody(boxBodyDef);
body4.CreateShape(boxShapeDef);
body4.SetMassFromShapes();
// Small circle
CircleDef circleShapeDef = new CircleDef();
circleShapeDef.Radius = 1.0f;
circleShapeDef.Density = 1.0f;
circleShapeDef.Filter.GroupIndex = k_smallGroup;
circleShapeDef.Filter.CategoryBits = k_circleCategory;
circleShapeDef.Filter.MaskBits = k_circleMask;
BodyDef circleBodyDef = new BodyDef();
circleBodyDef.Position.Set(5.0f, 2.0f);
Body body5 = _world.CreateBody(circleBodyDef);
body5.CreateShape(circleShapeDef);
body5.SetMassFromShapes();
// Large circle
circleShapeDef.Radius *= 2.0f;
circleShapeDef.Filter.GroupIndex = k_largeGroup;
circleBodyDef.Position.Set(5.0f, 6.0f);
Body body6 = _world.CreateBody(circleBodyDef);
body6.CreateShape(circleShapeDef);
body6.SetMassFromShapes();
}
