/// <summary> MusicalLoop Constructor </summary>
/// <exception cref="ArgumentNullException"> Thrown if input material, particle system, or LoopFGHashMap are null </exception>
/// <exception cref="MultipleActiveLoopsInFGException"> Thrown if fg has multiple active loops </exception>
public MusicalLoop(LoopFunctionalGroup fg1, string soundFile1, Material mat1, uint currMeasure, ParticleSystem particleSystem1, LoopFGHashMap lFGHashMap1)
{
// Pre-conditions
if (mat1 == null)
{
throw new ArgumentNullException(String.Format("{0} is null", mat1),
"mat1");
}
if (particleSystem1 == null)
{
throw new ArgumentNullException(String.Format("{0} is null", particleSystem1),
"particleSystem1");
}
if (lFGHashMap1 == null)
{
throw new ArgumentNullException(String.Format("{0} is null", lFGHashMap1),
"lFGHashMap1");
}
if (!lFGHashMap1.CheckMaxOneActiveFGLoop(fg1))
{
throw new MultipleActiveLoopsInFGException(fg1.ToString());
}
// Initialize variables
this.funcGroup = fg1;
this.soundFile = soundFile1;
this.mat = mat1;
this.particleSystem = particleSystem1;
this.lFGHashMap = lFGHashMap1;
SetLoopState(LoopState.Inactive, currMeasure);
}
/// <summary> LoopState Setter
/// (calling it rather than _state will ensure variables that need to be changed and
/// methods() that need to be called with the LoopState are
/// Will discuss my struggle with information hiding vs. principle of least suprise in interview
/// </summary>
/// <exception cref="ArgumentNullException"> Thrown if NewLoopState is null </exception>
/// <exception cref="MultipleActiveLoopsInFGException">
/// Thrown if after method, multiple loops associated with one fg are now active </exception>
private void SetLoopState(LoopState value, uint currMeasure)
{
//Preconditions
if (value == null)
{
throw new ArgumentNullException(String.Format("{0} is null", value),
"value");
}
//Change State
this._state = value;
//Every time Loop State is changed, must also:
mat.BeginAnimation();
this.measureOfLastStateChange = currMeasure;
Console.WriteLine("Set MusicalLoop's new state to: " + _state.Name);
if (!lFGHashMap.CheckMaxOneActiveFGLoop(funcGroup))
{
throw new MultipleActiveLoopsInFGException(funcGroup.ToString());
}
}
