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javaif-statementswitch-statementslick2d

how do I use switch and case in a java game?

I'm making a game in Slick2D and I have a lot of 'if' statements and I want to get rid of that. Now this is my code:

if((playerPositionX>570 && playerPositionX<835) && (playerPositionY>16 && playerPositionY<260)){
    g.setColor(Color.red);
    g.drawString("Ready to play? press enter!", 400,350);
}

Everything is fine but I have like 8 and going up of these, obviously with different coordinates. So I would like to know if it's possible to use a switch and case method to fix this.

Solution

  • You can't use a Switch with ranges as cases. In other words, something like this:

     Switch(playerPosition)
     case 570-835: 
     ....

    doesn't exist. You could do:

    int num;

if (playerPositionX>570 && playerPositionX<835){
    num = 0;
if (playerPositionX>836 && playerPositionX<1000){
    num = 1;

    and then 

     Switch(num){
     case 0: 
     ...
     case 1: 
     ...

    but you'll still have to use the if statements.