public Vector3 GetEmitRotation(EffectNode node)
{
Vector3 ret = Vector3.zero;
//Set Direction:
if (Layer.DirType == DIRECTION_TYPE.Sphere)
{
ret = node.GetOriginalPos() - Layer.DirCenter.position;
if (ret == Vector3.zero)
{
//use random rotation.
Vector3 r = Vector3.up;
Quaternion rot = Quaternion.Euler(Random.Range(0, 360), Random.Range(0, 360), Random.Range(0, 360));
ret = rot * r;
}
}
else if (Layer.DirType == DIRECTION_TYPE.Planar)
{
ret = Layer.OriVelocityAxis;
}
else if (Layer.DirType == DIRECTION_TYPE.Cone)
{
//if emit uniform circle, the rotation should be spread from the center.
if (Layer.EmitType == (int)EMITTYPE.CIRCLE && Layer.EmitUniform)
{
Vector3 dir;
if (!Layer.SyncClient)
{
dir = node.Position - (node.GetRealClientPos() + Layer.EmitPoint);
}
else
{
dir = node.Position - Layer.EmitPoint;
}
Vector3 target = Vector3.RotateTowards(dir, Layer.CircleDir, (90 - Layer.AngleAroundAxis) * Mathf.Deg2Rad, 1);
Quaternion rot = Quaternion.FromToRotation(dir, target);
ret = rot * dir;
}
else
{
//first, rotate y around z 30 degrees
Quaternion rotY = Quaternion.Euler(0, 0, Layer.AngleAroundAxis);
//second, rotate around y 360 random dir;
Quaternion rotAround = Quaternion.Euler(0, Random.Range(0, 360), 0);
//last, rotate the dir to OriVelocityAxis
Quaternion rotTo = Quaternion.FromToRotation(Vector3.up, Layer.OriVelocityAxis);
ret = rotTo * rotAround * rotY * Vector3.up;
}
}
else if (Layer.DirType == DIRECTION_TYPE.Cylindrical)
{
Vector3 dir = node.GetOriginalPos() - Layer.DirCenter.position;
float dist = Vector3.Dot(Layer.OriVelocityAxis, dir);
ret = dir - dist * Layer.OriVelocityAxis.normalized;
}
return(ret);
}
public Vector3 GetEmitRotation(EffectNode node)
{
Vector3 ret = Vector3.zero;
//Set Direction:
if (Layer.DirType == DIRECTION_TYPE.Sphere)
{
ret = node.GetOriginalPos() - Layer.DirCenter.position;
if (ret == Vector3.zero)
{
//use random rotation.
Vector3 r = Vector3.up;
Quaternion rot = Quaternion.Euler(Random.Range(0, 360), Random.Range(0, 360), Random.Range(0, 360));
ret = rot * r;
}
}
else if (Layer.DirType == DIRECTION_TYPE.Planar)
{
ret = Layer.OriVelocityAxis;
}
else if (Layer.DirType == DIRECTION_TYPE.Cone)
{
//if emit uniform circle, the rotation should be spread from the center.
if (Layer.EmitType == (int)EMITTYPE.CIRCLE && Layer.EmitUniform)
{
Vector3 dir;
if (!Layer.SyncClient)
dir = node.Position - (node.GetRealClientPos() + Layer.EmitPoint);
else
dir = node.Position - Layer.EmitPoint;
Vector3 target = Vector3.RotateTowards(dir, Layer.CircleDir, (90 - Layer.AngleAroundAxis) * Mathf.Deg2Rad, 1);
Quaternion rot = Quaternion.FromToRotation(dir, target);
ret = rot * dir;
}
else
{
//first, rotate y around z 30 degrees
Quaternion rotY = Quaternion.Euler(0, 0, Layer.AngleAroundAxis);
//second, rotate around y 360 random dir;
Quaternion rotAround = Quaternion.Euler(0, Random.Range(0, 360), 0);
//last, rotate the dir to OriVelocityAxis
Quaternion rotTo = Quaternion.FromToRotation(Vector3.up, Layer.OriVelocityAxis);
ret = rotTo * rotAround * rotY * Vector3.up;
}
}
else if (Layer.DirType == DIRECTION_TYPE.Cylindrical)
{
Vector3 dir = node.GetOriginalPos() - Layer.DirCenter.position;
float dist = Vector3.Dot(Layer.OriVelocityAxis, dir);
ret = dir - dist * Layer.OriVelocityAxis.normalized;
}
return ret;
}
