public override void OnEnter()
{
base.OnEnter();
space.SetIterations(30);
space.SetGravity(new cpVect(0, -100));
space.SetSleepTimeThreshold(0.5f);
cpBody body, staticBody = space.GetStaticBody();
cpShape shape;
// Create segments around the edge of the screen.
shape = space.AddShape(new cpSegmentShape(staticBody, new cpVect(-320, -240), new cpVect(-320, 240), 0.0f));
shape.SetElasticity(1.0f);
shape.SetFriction(1.0f);
shape.SetFilter(NOT_GRABBABLE_FILTER);
shape = space.AddShape(new cpSegmentShape(staticBody, new cpVect(320, -240), new cpVect(320, 240), 0.0f));
shape.SetElasticity(1.0f);
shape.SetFriction(1.0f);
shape.SetFilter(NOT_GRABBABLE_FILTER);
shape = space.AddShape(new cpSegmentShape(staticBody, new cpVect(-320, -240), new cpVect(320, -240), 0.0f));
shape.SetElasticity(1.0f);
shape.SetFriction(1.0f);
shape.SetFilter(NOT_GRABBABLE_FILTER);
shape = space.AddShape(new cpSegmentShape(staticBody, new cpVect(-320, 240), new cpVect(320, 240), 0.0f));
shape.SetElasticity(1.0f);
shape.SetFriction(1.0f);
shape.SetFilter(NOT_GRABBABLE_FILTER);
float mass = 1;
float width = 20;
float height = 30;
float spacing = width * 0.3f;
// Add lots of boxes.
for (int i = 0; i < CHAIN_COUNT; i++)
{
cpBody prev = null;
for (int j = 0; j < LINK_COUNT; j++)
{
cpVect pos = new cpVect(40 * (i - (CHAIN_COUNT - 1) / 2.0f), 240 - (j + 0.5f) * height - (j + 1) * spacing);
body = space.AddBody(new cpBody(mass, cp.MomentForBox(mass, width, height)));
body.SetPosition(pos);
shape = space.AddShape(new cpSegmentShape(body, new cpVect(0, (height - width) / 2.0f), new cpVect(0, (width - height) / 2.0f), width / 2.0f));
shape.SetFriction(0.8f);
float breakingForce = 80000;
cpConstraint constraint = null;
if (prev == null)
{
constraint = space.AddConstraint(new cpSlideJoint(body, staticBody, new cpVect(0, height / 2), new cpVect(pos.x, 240), 0, spacing));
}
else
{
constraint = space.AddConstraint(new cpSlideJoint(body, prev, new cpVect(0, height / 2), new cpVect(0, -height / 2), 0, spacing));
}
constraint.SetMaxForce(breakingForce);
constraint.SetPostSolveFunc(s => BreakableJointPostSolve(constraint));
constraint.SetCollideBodies(false);
//cpConstraintSetPostSolveFunc(constraint, BreakableJointPostSolve);
prev = body;
}
}
float radius = 15.0f;
body = space.AddBody(new cpBody(10.0f, cp.MomentForCircle(10.0f, 0.0f, radius, cpVect.Zero)));
body.SetPosition(new cpVect(0, -240 + radius + 5));
body.SetVelocity(new cpVect(0, 300));
shape = space.AddShape(new cpCircleShape(body, radius, cpVect.Zero));
shape.SetElasticity(0.0f);
shape.SetFriction(0.9f);;
Schedule();
}
