public void update(float frameTime, List<CollisionSurface> listCollisionSurfaces, List<Manipulator> listManipulators)
{
Vector3f positionTemp = position.copy();
velocity.add(gravity);
positionTemp.add(velocity * frameTime);
remainingLife -= frameTime;
foreach (CollisionSurface cs in listCollisionSurfaces)
{
if (cs.getActive() && cs.collisionDetect(position, positionTemp))
{
velocity = cs.computeTrajectory(velocity);
positionTemp = position.copy();
positionTemp.add(velocity * frameTime);
}
}
foreach (Manipulator m in listManipulators)
{
if (m.getActive())
{
Vector3f deltaVelocity = new Vector3f(0.0f, 0.0f, 0.0f);
Color4f deltaColor = new Color4f(0.0f, 0.0f, 0.0f, 0.0f);
float deltaLife = 0.0f;
m.manipulate(this, deltaVelocity, deltaColor, ref deltaLife);
velocity.add(deltaVelocity.stretch(frameTime));
color.add(deltaColor.multiply(frameTime));
remainingLife += deltaLife * frameTime;
}
}
position.set(positionTemp);
}
public Vector3f computeTrajectory(Vector3f vector)
{
Vector3f newTrajectory = new Vector3f(vector.x, 0 - vector.y, vector.z);
newTrajectory.stretch(friction);
return newTrajectory;
}
public override Particle emit(ParticleFactory particleFactory)
{
Vector3f tmp = new Vector3f(0.5f - random.NextDouble(), 0.5f - random.NextDouble(), 0.5f - random.NextDouble());
tmp.stretch(new Vector3f((float)random.NextDouble() * side.x, (float)random.NextDouble() * side.y, (float)random.NextDouble() * side.z));
tmp.add(position);
return particleFactory.createParticle(tmp, false, null);
}
public override Particle emit(ParticleFactory particleFactory)
{
Vector3f tmp = new Vector3f(0.5f - random.NextDouble(), 0.5f - random.NextDouble(), 0.5f - random.NextDouble());
tmp.Normalize();
tmp.stretch(radius);
tmp.add(position);
return particleFactory.createParticle(tmp, false, null);
}
public override void manipulate(Particle particle, Vector3f deltaVelocity, Color4f deltaColor, ref float deltaLife)
{
Vector3f tmp = this.position.diff(particle.position);
float len2 = tmp.length2();
if (len2 > size2)
return;
else if (len2 < threshold2)
{
deltaVelocity.set(particle.velocity);
deltaVelocity.stretch(strength);
deltaVelocity.invert();
return;
}
len2 = size2 / len2;
deltaVelocity.set(tmp);
deltaVelocity.stretch(strength);
deltaVelocity.stretch(len2);
}
public override void manipulate(Particle particle, Vector3f deltaVelocity, Color4f deltaColor, ref float deltaLife)
{
deltaVelocity.set(particle.velocity);
deltaVelocity.stretch(strength);
deltaVelocity.invert();
}
public override void manipulate(Particle particle, Vector3f deltaVelocity, Color4f deltaColor, ref float deltaLife)
{
deltaVelocity.add(direction);
deltaVelocity.stretch(strength);
}
