//-----------------------------------------------------------------------
void SphereSurfaceEmitter::_initParticleDirection(Particle* particle)
{
if (mAutoDirection)
{
// The value of the direction vector that has been set does not have a meaning for
// the sphere surface emitter.
Radian angle;
_generateAngle(angle);
if (angle != Radian(0))
{
particle->direction = mRandomVector.randomDeviant(angle, mUpVector);
particle->originalDirection = particle->direction;
}
else
{
particle->direction = mRandomVector;
particle->originalDirection = particle->direction;
}
}
else
{
// Use the standard way
ParticleEmitter::_initParticleDirection(particle);
}
}
//-----------------------------------------------------------------------
void CircleEmitter::_initParticleDirection(Particle* particle)
{
if (mAutoDirection)
{
// The value of the direction vector that has been set does not have a meaning for
// the circle emitter.
Radian angle;
_generateAngle(angle);
if (angle != Radian(0))
{
particle->direction = (mOrientation * Vector3(mX, 0, mZ) ).randomDeviant(angle, mUpVector);
particle->originalDirection = particle->direction;
}
else
{
particle->direction = Vector3(mX, 0, mZ);
particle->direction = mOrientation * Vector3(mX, 0, mZ);
}
}
else
{
// Use the standard way
ParticleEmitter::_initParticleDirection(particle);
}
}
//-----------------------------------------------------------------------
void ParticleEmitter::_initParticleDirection(Particle* particle)
{
// Use the default way of initialising the particle direction
Radian angle;
_generateAngle(angle);
if (angle != Radian(0))
{
particle->direction = mParticleDirection.randomDeviant(angle, mUpVector);
}
else
{
particle->direction = mParticleDirection;
}
particle->originalDirection = particle->direction;
particle->originalDirectionLength = particle->direction.length();
}
//-----------------------------------------------------------------------
void LineEmitter::_initParticleDirection(Particle* particle)
{
if (mAutoDirection)
{
Radian angle;
_generateAngle(angle);
if (angle != Radian(0))
{
particle->direction = mPerpendicular.randomDeviant(angle, mUpVector);
particle->originalDirection = particle->direction;
}
else
{
particle->direction = mPerpendicular;
particle->originalDirection = particle->direction;
}
}
else
{
// Use the standard way
ParticleEmitter::_initParticleDirection(particle);
}
}
