protected override void SetupPhysics(World world)
{
#if !EDITOR
Vector2 simPosition = ConvertUnits.ToSimUnits(this._position);
if (_useShape)
{
float simHeight = ConvertUnits.ToSimUnits(this._height);
float simWidth = ConvertUnits.ToSimUnits(this._width);
this.Body = new Body(world);
this.Body.Position = simPosition;
this._origin = new Vector2(this._texture.Width, this._texture.Height) * 0.5f;
switch (_shapeType)
{
case ObjectShape.Quadrilateral:
{
Fixture fixture = FixtureFactory.AttachRectangle(simWidth, simHeight, _mass, Vector2.Zero, Body);
break;
}
case ObjectShape.Circle:
{
Fixture fixture = FixtureFactory.AttachCircle(simWidth * 0.5f, _mass, this.Body);
break;
}
}
this._revoluteJoint = JointFactory.CreateFixedRevoluteJoint(world, Body, Vector2.Zero, simPosition);
}
else
{
bool useCentroid = false;
if (_rotatesWithLevel)
{
useCentroid = true;
}
TexVertOutput input = SpinAssist.TexToVert(world, _texture, _mass, false);
this._origin = Vector2.Zero;
this.Body = input.Body;
this.Body.Position = simPosition;
if (useCentroid)
{
this._revoluteJoint = JointFactory.CreateFixedRevoluteJoint(world, Body, this.Body.LocalCenter, simPosition);
}
else
{
this._revoluteJoint = JointFactory.CreateFixedRevoluteJoint(world, Body, this.Body.LocalCenter, simPosition);
}
this._revoluteJoint.MaxMotorTorque = float.MaxValue;
this._revoluteJoint.MotorEnabled = true;
if (!_rotatesWithLevel)
{
this.Body.BodyType = BodyType.Dynamic;
}
else
{
this.Body.BodyType = BodyType.Dynamic;
this.Body.Rotation = this._rotation;
float newSpeed = 1 / _motorSpeed;
this._motorSpeed = newSpeed;
}
if (this._motorEnabled)
{
this._revoluteJoint.MotorSpeed = _motorSpeed;
}
else
{
this._revoluteJoint.MotorSpeed = 0.0f;
}
}
this.Body.CollidesWith = Category.All & ~Category.Cat20;
this.Body.CollisionCategories = Category.Cat20;
this.Body.Friction = 3.0f;
this.Body.UserData = _materialType;
#endif
}
protected override void SetupPhysics(World world)
{
float textureWidth = ConvertUnits.ToSimUnits(this._texture.Width);
float textureHeight = ConvertUnits.ToSimUnits(this._texture.Height);
Vector2 axis = SpinAssist.ModifyVectorByOrientation(new Vector2(0, -1), _orientation);
Body body;
#region Shaft
for (int i = 0; i < _shaftPieces; i++)
{
body = new Body(world);
body.Position = ConvertUnits.ToSimUnits(this._position);
body.Rotation = SpinAssist.RotationByOrientation(this._orientation);
if (i == 0)
{
Fixture fixture = FixtureFactory.AttachRectangle(textureWidth, textureHeight, 1.0f, Vector2.Zero, body);
body.BodyType = BodyType.Static;
}
else
{
Fixture fixture = FixtureFactory.AttachRectangle(textureWidth - ((textureWidth * 0.04f) * i), textureHeight, 1.0f, Vector2.Zero, body);
body.BodyType = BodyType.Dynamic;
FixedPrismaticJoint _joint = JointFactory.CreateFixedPrismaticJoint(world, body, ConvertUnits.ToSimUnits(this._position), axis);
_joint.MotorEnabled = true;
_joint.MaxMotorForce = float.MaxValue;
_joint.LimitEnabled = true;
_joint.LowerLimit = 0;
_joint.UpperLimit = (textureHeight * i);
_joints.Add(_joint);
}
body.Friction = 3.0f;
body.CollisionCategories = Category.Cat2;
// Ignore collision with Statics and other pistons.
body.CollidesWith = Category.All & ~Category.Cat2 & ~Category.Cat20;
body.UserData = _materialType;
_shaftBodies.Add(body);
}
#endregion
#region Endpiece
TexVertOutput input = SpinAssist.TexToVert(world, _crusherTexture, ConvertUnits.ToSimUnits(10), true);
_crusherTextureOrigin = -ConvertUnits.ToSimUnits(input.Origin);
this.Body = input.Body;
this.Body.Position = ConvertUnits.ToSimUnits(this._position);
this.Body.Rotation = this._rotation;
this.Body.Friction = 3.0f;
this.Body.Restitution = 0.0f;
this.Body.BodyType = BodyType.Dynamic;
this.Body.Mass = 100.0f;
this.Body.CollisionCategories = Category.Cat2;
// Ignore collision with Statics and other pistons.
this.Body.CollidesWith = Category.All & ~Category.Cat2 & ~Category.Cat20;
this.Body.UserData = _materialType;
this._prismaticJoint = JointFactory.CreateFixedPrismaticJoint(world, this.Body, ConvertUnits.ToSimUnits(this._position + new Vector2(0, 40)), axis);
this._prismaticJoint.UpperLimit = (textureHeight * (_shaftPieces));
this._prismaticJoint.LowerLimit = (textureHeight * 0.5f);
this._prismaticJoint.LimitEnabled = true;
this._prismaticJoint.MotorEnabled = true;
this._prismaticJoint.MaxMotorForce = float.MaxValue;
#endregion
if (_isLethal)
{
float endHeight = ConvertUnits.ToSimUnits(_crusherTexture.Height);
Fixture fix = FixtureFactory.AttachRectangle(
ConvertUnits.ToSimUnits(_crusherTexture.Width - 20),
endHeight * 0.38f,
1.0f, new Vector2(0, -endHeight * 0.4f),
Body);
fix.IsSensor = true;
fix.IgnoreCollisionWith(this.Body.FixtureList[0]);
fix.Body.OnCollision += TouchedLethal;
fix.Body.OnSeparation += LeftLethal;
}
}
