Greenfoot

Mariachi

2014/12/13

#

Hi, I wondered if it was possible to change if else if in switch in this kind of code? I shall like relieving the code.

 if (Level.level <= 0) 
        {
            setBackground(new GreenfootImage("Backgroundtutorial.gif"));
            // Le lvl 0 a l'image de Mountains en background.
            level0.playLoop(); //La musique sympa pour le niveau 0.
        }
        else if (Level.level <= 6) 
        {
            setBackground(new GreenfootImage("Backgroundtuto.gif"));
            // Le lvl 0 a l'image de Mountains en background.
            level0.playLoop(); //La musique sympa pour le niveau 0.
        }

Super_Hippo

2014/12/13

#

You could, but it wouldn't make much sense.

switch(Level.level)
{
    case 0: ... break;
    case 1: case 2: case 3: case 4: case 5: case 6: ... break;
}

Mariachi

2014/12/13

#

But Where do I have to implant setBackground and playLoop?

Super_Hippo

2014/12/13

#

In the "..." part.

Mariachi

2014/12/13

#

Ok Thank you, why did you say that it would'nt make much sense ?

Mariachi

2014/12/13

#

And where do I have to add <= *number of the level* ?

danpost

2014/12/13

#

In the switch code Super_Hippo gave, line 3 would be like your 'if' part. All valid 'Level.level' values must be explicitly cased (all possible values less than or equal to zero). Line 4 is like your 'else if' part (all possible value less than or equal to six, but greater than zero). I believe what was meant by it would not make much sense is that you have to basically list all the possible values for each case; and, in your case, it would make more sense to just use an 'if-else if'. Here is another way to write the snippet:

if (Level.level <= 6)
{
    String bg = "Backgroundtuto.gif";
    if (Level.level <= 0) bg = "Backgroundtutorial.gif";
    setBackground(bg);
    level0.playLoop();
}

Mariachi

2014/12/13

#

I understand thank you !

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Change if...else if in switch