/**
* Creates a new firework of this type and writes it into the given
* instance. The optional parent firework is used to base position
* and velocity on.
*/
void create(Firework *firework, const Firework *parent = NULL) const
{
firework->type = type;
firework->age = crandom.randomReal(minAge, maxAge);
cyclone::Vector3 vel;
if (parent) {
// The position and velocity are based on the parent.
firework->setPosition(parent->getPosition());
vel += parent->getVelocity();
}
else
{
cyclone::Vector3 start;
int x = (int)crandom.randomInt(3) - 1;
start.x = 5.0f * cyclone::real(x);
firework->setPosition(start);
}
vel += crandom.randomVector(minVelocity, maxVelocity);
firework->setVelocity(vel);
// We use a mass of one in all cases (no point having fireworks
// with different masses, since they are only under the influence
// of gravity).
firework->setMass(1);
firework->setDamping(damping);
firework->setAcceleration(cyclone::Vector3::GRAVITY);
firework->clearAccumulator();
}
void RagdollDemo::reset()
{
bones[0].setState(
cyclone::Vector3(0, 0.993, -0.5),
cyclone::Vector3(0.301, 1.0, 0.234));
bones[1].setState(
cyclone::Vector3(0, 3.159, -0.56),
cyclone::Vector3(0.301, 1.0, 0.234));
bones[2].setState(
cyclone::Vector3(0, 0.993, 0.5),
cyclone::Vector3(0.301, 1.0, 0.234));
bones[3].setState(
cyclone::Vector3(0, 3.15, 0.56),
cyclone::Vector3(0.301, 1.0, 0.234));
bones[4].setState(
cyclone::Vector3(-0.054, 4.683, 0.013),
cyclone::Vector3(0.415, 0.392, 0.690));
bones[5].setState(
cyclone::Vector3(0.043, 5.603, 0.013),
cyclone::Vector3(0.301, 0.367, 0.693));
bones[6].setState(
cyclone::Vector3(0, 6.485, 0.013),
cyclone::Vector3(0.435, 0.367, 0.786));
bones[7].setState(
cyclone::Vector3(0, 7.759, 0.013),
cyclone::Vector3(0.45, 0.598, 0.421));
bones[8].setState(
cyclone::Vector3(0, 5.946, -1.066),
cyclone::Vector3(0.267, 0.888, 0.207));
bones[9].setState(
cyclone::Vector3(0, 4.024, -1.066),
cyclone::Vector3(0.267, 0.888, 0.207));
bones[10].setState(
cyclone::Vector3(0, 5.946, 1.066),
cyclone::Vector3(0.267, 0.888, 0.207));
bones[11].setState(
cyclone::Vector3(0, 4.024, 1.066),
cyclone::Vector3(0.267, 0.888, 0.207));
cyclone::real strength = -random.randomReal(500.0f, 1000.0f);
for (unsigned i = 0; i < NUM_BONES; i++)
{
bones[i].body->addForceAtBodyPoint(
cyclone::Vector3(strength, 0, 0), cyclone::Vector3()
);
}
bones[6].body->addForceAtBodyPoint(
cyclone::Vector3(strength, 0, random.randomBinomial(1000.0f)),
cyclone::Vector3(random.randomBinomial(4.0f), random.randomBinomial(3.0f), 0)
);
// Reset the contacts
cData.contactCount = 0;
}
void SailboatDemo::update()
{
// Find the duration of the last frame in seconds
float duration = (float)TimingData::get().lastFrameDuration * 0.001f;
if (duration <= 0.0f) return;
// Start with no forces or acceleration.
sailboat.clearAccumulators();
// Add the forces acting on the boat.
registry.updateForces(duration);
// Update the boat's physics.
sailboat.integrate(duration);
// Change the wind speed.
windspeed = windspeed * 0.9f + r.randomXZVector(1.0f);
Application::update();
}