public b2ChainShape(b2ChainShape clone)
: base((b2Shape)clone)
{
CreateChain(clone.m_vertices, m_count);
PrevVertex = clone.PrevVertex;
NextVertex = clone.NextVertex;
m_hasPrevVertex = clone.m_hasPrevVertex;
m_hasNextVertex = clone.m_hasNextVertex;
}
public b2ChainShape(b2ChainShape clone)
: base((b2Shape)clone)
{
CreateChain(clone.m_vertices, m_count);
PrevVertex = clone.PrevVertex;
NextVertex = clone.NextVertex;
m_hasPrevVertex = clone.m_hasPrevVertex;
m_hasNextVertex = clone.m_hasNextVertex;
}
public b2ChainShape(b2ChainShape clone)
: base((b2Shape)clone)
{
CreateChain(clone.Vertices, clone.Count);
PrevVertex = clone.PrevVertex;
NextVertex = clone.NextVertex;
HasPrevVertex = clone.HasPrevVertex;
HasNextVertex = clone.HasNextVertex;
}
public b2ChainShape(b2ChainShape clone)
: base((b2Shape)clone)
{
CreateChain(clone.Vertices, clone.Count);
PrevVertex = clone.PrevVertex;
NextVertex = clone.NextVertex;
HasPrevVertex = clone.HasPrevVertex;
HasNextVertex = clone.HasNextVertex;
}
public override b2Shape Clone()
{
b2ChainShape clone = new b2ChainShape(this);
return(clone);
}
public override b2Shape Clone()
{
b2ChainShape clone = new b2ChainShape(this);
return clone;
}
public Pinball()
{
// Ground body
b2Body ground;
{
b2BodyDef bd = new b2BodyDef();
ground = m_world.CreateBody(bd);
b2Vec2[] vs = new b2Vec2[5];
vs[0].Set(0.0f, -2.0f);
vs[1].Set(8.0f, 6.0f);
vs[2].Set(8.0f, 20.0f);
vs[3].Set(-8.0f, 20.0f);
vs[4].Set(-8.0f, 6.0f);
b2ChainShape loop = new b2ChainShape();
loop.CreateLoop(vs, 5);
b2FixtureDef fd = new b2FixtureDef();
fd.shape = loop;
fd.density = 0.0f;
ground.CreateFixture(fd);
}
// Flippers
{
b2Vec2 p1 = new b2Vec2(-2.0f, 0.0f);
b2Vec2 p2 = new b2Vec2(2.0f, 0.0f);
b2BodyDef bd = new b2BodyDef();
bd.type = b2BodyType.b2_dynamicBody;
bd.position = p1;
b2Body leftFlipper = m_world.CreateBody(bd);
bd.position = p2;
b2Body rightFlipper = m_world.CreateBody(bd);
b2PolygonShape box = new b2PolygonShape();
box.SetAsBox(1.75f, 0.1f);
b2FixtureDef fd = new b2FixtureDef();
fd.shape = box;
fd.density = 1.0f;
leftFlipper.CreateFixture(fd);
rightFlipper.CreateFixture(fd);
b2RevoluteJointDef jd = new b2RevoluteJointDef();
jd.BodyA = ground;
jd.localAnchorB.SetZero();
jd.enableMotor = true;
jd.maxMotorTorque = 1000.0f;
jd.enableLimit = true;
jd.motorSpeed = 0.0f;
jd.localAnchorA = p1;
jd.BodyB = leftFlipper;
jd.lowerAngle = -30.0f * b2Settings.b2_pi / 180.0f;
jd.upperAngle = 5.0f * b2Settings.b2_pi / 180.0f;
m_leftJoint = (b2RevoluteJoint) m_world.CreateJoint(jd);
jd.motorSpeed = 0.0f;
jd.localAnchorA = p2;
jd.BodyB = rightFlipper;
jd.lowerAngle = -5.0f * b2Settings.b2_pi / 180.0f;
jd.upperAngle = 30.0f * b2Settings.b2_pi / 180.0f;
m_rightJoint = (b2RevoluteJoint) m_world.CreateJoint(jd);
}
// Circle character
{
b2BodyDef bd = new b2BodyDef();
bd.position.Set(1.0f, 15.0f);
bd.type = b2BodyType.b2_dynamicBody;
bd.bullet = true;
m_ball = m_world.CreateBody(bd);
b2CircleShape shape = new b2CircleShape();
shape.Radius = 0.2f;
b2FixtureDef fd = new b2FixtureDef();
fd.shape = shape;
fd.density = 1.0f;
m_ball.CreateFixture(fd);
}
m_button = false;
}
// REVISADO =====================================================================
b2Fixture j2b2Fixture(b2Body body, JObject fixtureValue)
{
if (null == fixtureValue)
return null;
b2FixtureDef fixtureDef = new b2FixtureDef();
//Fixture fixtureDef = new Fixture();
fixtureDef.restitution = jsonToFloat("restitution", fixtureValue);
fixtureDef.friction = jsonToFloat("friction", fixtureValue);
fixtureDef.density = jsonToFloat("density", fixtureValue);
fixtureDef.isSensor = fixtureValue["sensor"] == null ? false : (bool)fixtureValue["sensor"];
fixtureDef.filter.categoryBits = (fixtureValue["filter-categoryBits"] == null) ? (ushort)0x0001 : (ushort)fixtureValue["filter-categoryBits"];
fixtureDef.filter.maskBits = fixtureValue["filter-maskBits"] == null ? (ushort)0xffff : (ushort)fixtureValue["filter-maskBits"];
fixtureDef.filter.groupIndex = fixtureValue["filter-groupIndex"] == null ? (short)0 : (short)fixtureValue["filter-groupIndex"];
b2Fixture fixture = null;
if (null != fixtureValue["circle"])
{
JObject circleValue = (JObject)fixtureValue["circle"];
b2CircleShape circleShape = new b2CircleShape();
circleShape.Radius = jsonToFloat("radius", circleValue);
circleShape.Position = jsonToVec("center", circleValue);
fixtureDef.shape = circleShape;
fixture = body.CreateFixture(fixtureDef);
}
else if (null != fixtureValue["edge"])
{
JObject edgeValue = (JObject)fixtureValue["edge"];
b2EdgeShape edgeShape = new b2EdgeShape();
edgeShape.Vertex1 = jsonToVec("vertex1", edgeValue);
edgeShape.Vertex2 = jsonToVec("vertex2", edgeValue);
edgeShape.HasVertex0 = edgeValue["hasVertex0"] == null ? false : (bool)edgeValue["hasVertex0"];
edgeShape.HasVertex3 = edgeValue["hasVertex3"] == null ? false : (bool)edgeValue["hasVertex3"];
if (edgeShape.HasVertex0)
edgeShape.Vertex0 = jsonToVec("vertex0", edgeValue);
if (edgeShape.HasVertex3)
edgeShape.Vertex3 = jsonToVec("vertex3", edgeValue);
fixtureDef.shape = edgeShape;
fixture = body.CreateFixture(fixtureDef);
}
else if (null != fixtureValue["loop"])
{// support old
// format (r197)
JObject chainValue = (JObject)fixtureValue["loop"];
b2ChainShape chainShape = new b2ChainShape();
int numVertices = ((JArray)chainValue["x"]).Count;
b2Vec2[] vertices = new b2Vec2[numVertices];
for (int i = 0; i < numVertices; i++)
vertices[i] = jsonToVec("vertices", chainValue, i);
chainShape.CreateLoop(vertices, numVertices);
fixtureDef.shape = chainShape;
fixture = body.CreateFixture(fixtureDef);
}
else if (null != fixtureValue["chain"])
{
// FPE. See http://www.box2d.org/forum/viewtopic.php?f=4&t=7973&p=35363
JObject chainValue = (JObject)fixtureValue["chain"];
b2ChainShape chainShape = new b2ChainShape();
int numVertices = ((JArray)chainValue["vertices"]["x"]).Count;
var vertices = new b2Vec2[numVertices];
for (int i = 0; i < numVertices; i++)
vertices[i] = jsonToVec("vertices", chainValue, i);
chainShape.CreateChain(vertices, numVertices);
chainShape.HasPrevVertex = chainValue["hasPrevVertex"] == null ? false : (bool)chainValue["hasPrevVertex"];
chainShape.HasNextVertex = chainValue["hasNextVertex"] == null ? false : (bool)chainValue["hasNextVertex"];
if (chainShape.HasPrevVertex)
chainShape.PrevVertex = (jsonToVec("prevVertex", chainValue));
if (chainShape.HasNextVertex)
chainShape.NextVertex = (jsonToVec("nextVertex", chainValue));
fixtureDef.shape = chainShape;
fixture = body.CreateFixture(fixtureDef);
}
else if (null != fixtureValue["polygon"])
{
JObject polygonValue = (JObject)fixtureValue["polygon"];
b2Vec2[] vertices = new b2Vec2[b2Settings.b2_maxPolygonVertices];
int numVertices = ((JArray)polygonValue["vertices"]["x"]).Count;
if (numVertices > b2Settings.b2_maxPolygonVertices)
{
Console.WriteLine("Ignoring polygon fixture with too many vertices.");
}
else if (numVertices < 2)
{
Console.WriteLine("Ignoring polygon fixture less than two vertices.");
}
else if (numVertices == 2)
{
Console.WriteLine("Creating edge shape instead of polygon with two vertices.");
b2EdgeShape edgeShape = new b2EdgeShape();
edgeShape.Vertex1 = jsonToVec("vertices", polygonValue, 0);
edgeShape.Vertex2 = jsonToVec("vertices", polygonValue, 1);
fixtureDef.shape = edgeShape;
fixture = body.CreateFixture(fixtureDef);
}
else
{
b2PolygonShape polygonShape = new b2PolygonShape();
for (int i = 0; i < numVertices; i++)
vertices[i] = jsonToVec("vertices", polygonValue, i);
polygonShape.Set(vertices, numVertices);
fixtureDef.shape = polygonShape;
fixture = body.CreateFixture(fixtureDef);
}
}
String fixtureName = fixtureValue["name"] == null ? "" : fixtureValue["name"].ToString();
if (fixtureName != "")
{
SetFixtureName(fixture, fixtureName);
}
return fixture;
}
public CharacterCollision()
{
// Ground body
{
b2BodyDef bd = new b2BodyDef();
b2Body ground = m_world.CreateBody(bd);
b2EdgeShape shape = new b2EdgeShape();
shape.Set(new b2Vec2(-20.0f, 0.0f), new b2Vec2(20.0f, 0.0f));
ground.CreateFixture(shape, 0.0f);
}
// Collinear edges with no adjacency information.
// This shows the problematic case where a box shape can hit
// an internal vertex.
{
b2BodyDef bd = new b2BodyDef();
b2Body ground = m_world.CreateBody(bd);
b2EdgeShape shape = new b2EdgeShape();
shape.Set(new b2Vec2(-8.0f, 1.0f), new b2Vec2(-6.0f, 1.0f));
ground.CreateFixture(shape, 0.0f);
shape.Set(new b2Vec2(-6.0f, 1.0f), new b2Vec2(-4.0f, 1.0f));
ground.CreateFixture(shape, 0.0f);
shape.Set(new b2Vec2(-4.0f, 1.0f), new b2Vec2(-2.0f, 1.0f));
ground.CreateFixture(shape, 0.0f);
}
// Chain shape
{
b2BodyDef bd = new b2BodyDef();
bd.angle = 0.25f * b2Settings.b2_pi;
b2Body ground = m_world.CreateBody(bd);
b2Vec2[] vs = new b2Vec2[4];
vs[0].Set(5.0f, 7.0f);
vs[1].Set(6.0f, 8.0f);
vs[2].Set(7.0f, 8.0f);
vs[3].Set(8.0f, 7.0f);
b2ChainShape shape = new b2ChainShape();
shape.CreateChain(vs, 4);
ground.CreateFixture(shape, 0.0f);
}
// Square tiles. This shows that adjacency shapes may
// have non-smooth collision. There is no solution
// to this problem.
{
b2BodyDef bd = new b2BodyDef();
b2Body ground = m_world.CreateBody(bd);
b2PolygonShape shape = new b2PolygonShape();
shape.SetAsBox(1.0f, 1.0f, new b2Vec2(4.0f, 3.0f), 0.0f);
ground.CreateFixture(shape, 0.0f);
shape.SetAsBox(1.0f, 1.0f, new b2Vec2(6.0f, 3.0f), 0.0f);
ground.CreateFixture(shape, 0.0f);
shape.SetAsBox(1.0f, 1.0f, new b2Vec2(8.0f, 3.0f), 0.0f);
ground.CreateFixture(shape, 0.0f);
}
// Square made from an edge loop. Collision should be smooth.
{
b2BodyDef bd = new b2BodyDef();
b2Body ground = m_world.CreateBody(bd);
b2Vec2[] vs = new b2Vec2[4];
vs[0].Set(-1.0f, 3.0f);
vs[1].Set(1.0f, 3.0f);
vs[2].Set(1.0f, 5.0f);
vs[3].Set(-1.0f, 5.0f);
b2ChainShape shape = new b2ChainShape();
shape.CreateLoop(vs, 4);
ground.CreateFixture(shape, 0.0f);
}
// Edge loop. Collision should be smooth.
{
b2BodyDef bd = new b2BodyDef();
bd.position.Set(-10.0f, 4.0f);
b2Body ground = m_world.CreateBody(bd);
b2Vec2[] vs = new b2Vec2[10];
vs[0].Set(0.0f, 0.0f);
vs[1].Set(6.0f, 0.0f);
vs[2].Set(6.0f, 2.0f);
vs[3].Set(4.0f, 1.0f);
vs[4].Set(2.0f, 2.0f);
vs[5].Set(0.0f, 2.0f);
vs[6].Set(-2.0f, 2.0f);
vs[7].Set(-4.0f, 3.0f);
vs[8].Set(-6.0f, 2.0f);
vs[9].Set(-6.0f, 0.0f);
b2ChainShape shape = new b2ChainShape();
shape.CreateLoop(vs, 10);
ground.CreateFixture(shape, 0.0f);
}
// Square character 1
{
b2BodyDef bd = new b2BodyDef();
bd.position.Set(-3.0f, 8.0f);
bd.type = b2BodyType.b2_dynamicBody;
bd.fixedRotation = true;
bd.allowSleep = false;
b2Body body = m_world.CreateBody(bd);
b2PolygonShape shape = new b2PolygonShape();
shape.SetAsBox(0.5f, 0.5f);
b2FixtureDef fd = new b2FixtureDef();
fd.Defaults();
fd.shape = shape;
fd.density = 20.0f;
body.CreateFixture(fd);
}
// Square character 2
{
b2BodyDef bd = new b2BodyDef();
bd.position.Set(-5.0f, 5.0f);
bd.type = b2BodyType.b2_dynamicBody;
bd.fixedRotation = true;
bd.allowSleep = false;
b2Body body = m_world.CreateBody(bd);
b2PolygonShape shape = new b2PolygonShape();
shape.SetAsBox(0.25f, 0.25f);
b2FixtureDef fd = new b2FixtureDef();
fd.Defaults();
fd.shape = shape;
fd.density = 20.0f;
body.CreateFixture(fd);
}
// Hexagon character
{
b2BodyDef bd = new b2BodyDef();
bd.position.Set(-5.0f, 8.0f);
bd.type = b2BodyType.b2_dynamicBody;
bd.fixedRotation = true;
bd.allowSleep = false;
b2Body body = m_world.CreateBody(bd);
float angle = 0.0f;
float delta = b2Settings.b2_pi / 3.0f;
b2Vec2[] vertices = new b2Vec2[6];
for (int i = 0; i < 6; ++i)
{
vertices[i].Set(0.5f * (float) Math.Cos(angle), 0.5f * (float) Math.Sin(angle));
angle += delta;
}
b2PolygonShape shape = new b2PolygonShape();
shape.Set(vertices, 6);
b2FixtureDef fd = new b2FixtureDef();
fd.Defaults();
fd.shape = shape;
fd.density = 20.0f;
body.CreateFixture(fd);
}
// Circle character
{
b2BodyDef bd = new b2BodyDef();
bd.position.Set(3.0f, 5.0f);
bd.type = b2BodyType.b2_dynamicBody;
bd.fixedRotation = true;
bd.allowSleep = false;
b2Body body = m_world.CreateBody(bd);
b2CircleShape shape = new b2CircleShape();
shape.Radius = 0.5f;
b2FixtureDef fd = new b2FixtureDef();
fd.shape = shape;
fd.density = 20.0f;
body.CreateFixture(fd);
}
// Circle character
{
b2BodyDef bd = new b2BodyDef();
bd.position.Set(-7.0f, 6.0f);
bd.type = b2BodyType.b2_dynamicBody;
bd.allowSleep = false;
m_character = m_world.CreateBody(bd);
b2CircleShape shape = new b2CircleShape();
shape.Radius = 0.25f;
b2FixtureDef fd = new b2FixtureDef();
fd.Defaults();
fd.shape = shape;
fd.density = 20.0f;
fd.friction = 1.0f;
m_character.CreateFixture(fd);
}
}
public virtual b2Shape Clone()
{
b2ChainShape clone = new b2ChainShape(this);
return(clone);
}
public virtual b2Shape Clone()
{
b2ChainShape clone = new b2ChainShape(this);
return clone;
}
