Water Hose Script [Mathf.Lerp] question/problem

Hi there,
Im having problem with the script from unity assets as i dont understand it quite right :/
It's all confusing me the mathf lerp and after get mouse ? :.
Could someone translate it for me to more 'Simplified version' because this one is really confusing, i would really appreciate if someone could explain it well or translate this code into if statement, most confusing is first like m_power.
I just want something like when mouse is pressed and hold then {inside here do something eg play particle and stuff so i could add here sound effect and other stuff while particle is playing} and then if mouse is up or no longer press {then in these if statement stop sound particle etc etc}

Code (JavaScript):

1.  
2. m_Power = Mathf.Lerp(m_Power, Input.GetMouseButton(0) ? maxPower : minPower, Time.deltaTime*changeSpeed );
3.             for each (var system in hoseWaterSystems)
4.             {
5.  
6.                 system.startSpeed = m_Power;
7.                 system.enableEmission = (m_Power > minPower * 1.1f);
8.             }
9.             else
10.             {
11.             system.enableEmission = false;
12.             }
13.  

If someone could translate this into something like [example]

Code (JavaScript):

1.  
2. //if(Input.GetMouseButton(0))
3. //{
4. //and idk [because the mpower and other max and min is confusing
5. //}
6. //all i want is to when i press and hold mouse it plays these particles and when i release
7. //mouse it stops with all these max and min power
8.  
9.  

Thanks for helping !

 

That example doesn't even use Lerp correctly anyway.

For the record that structure is called a ternary operator. It's basically a collapsed if statement and can be read like this

Code (csharp):

1.  
2. theValue = boolToEvaluate ? valueIfTrue : valueIfFalse;
3. // as an if statement
4. if (boolToEvaluate)
5.     theValue = valueIfTrue;
6. else
7.     theValue = valueIfFalse;
8.  

So essentially it's saying if mouse button down lerp to max power otherwise lerp to min power. But again, it's not using Lerp correctly because it's passing Time.deltaTime to affect the percentage; which they do all over the place but is wrong and will never actually fully Lerp to completion.

 

Sure no problem

Code (CSharp):

1. if (Input.GetMouseButton(0))
2. {
3.     for each (var system in hoseWaterSystems)
4.     {
5.         system.startSpeed = maxPower;
6.         system.enabledEmission = true;
7.     }
8. }
9. else
10. {
11.     for each (var system in hoseWaterSystems)
12.     {
13.         system.enabledEmission = false;
14.     }
15. }

 

Thanks for quick help guys !
I used this one as this is what i meant is simple and i understand it well so i know now where it plays and where not and where to add sound

Code (JavaScript):

1. if (Input.GetMouseButton(0))
2. {
3.     for each (var system in hoseWaterSystems)
4.     {
5.         system.startSpeed = maxPower;
6.         system.enabledEmission = true;
7.     }
8. }
9. else
10. {
11.     for each (var system in hoseWaterSystems)
12.     {
13.         system.enabledEmission = false;
14.     }
15. }

But for future this code

Code (JavaScript):

1.  
2. theValue = boolToEvaluate ? valueIfTrue : valueIfFalse;
3. // as an if statement
4. //so it basically means that if boolToEvaluate= true [but what boolToEvaluate means does it mean mouse click or what :?]
5. // what does the : mean
6. if (boolToEvaluate)// and why there is if another 'if' if there is already if above :?
7.     theValue = valueIfTrue;
8. else
9.     theValue = valueIfFalse;
10.  

 

I was giving you the if equivalent of the ternary operation.

The "if" in this case is Input.GetMouseButton(0)

Code (csharp):

1.  
2. // logs On when you press the mouse button and Off when you aren't
3. Debug.Log(Input.GetMouseButton(0) ? "On" : "Off");
4.  

 

Ok thanks for helping