Processing 1.0 - Processing Discourse - case x

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case x - variable modes ... (Read 556 times)

annemarie

case x - variable modes ...
Nov 7^th, 2006, 5:47am

Hi all,

I am working with the 'case'. I have 3 different cases, or 3 different modes that are activated in different ways. In case 3 the graphic changes when the mouse is over it. But if case 2 was active before the mouse was over it, then it should go back to case 2, and if case 1 was active before the mouse is over it, then case 1 should be active when the mouse leaves. How does that work?

Can I have a variable case number in the }else{ ? How do I define a variable case number?

Thanks a lot for your help!

for(int i = 0; i < myGraphic.length; i++){ // here the graphic class is activated
if (myGraphic[i].over()) {
myGraphic[i].mode=3;
selected = i;
}
else {
myGraphic[i].mode = 0; // can this be a variable?, so that the mode that was last activated can be active?
}
}

Daniel Shiffman

Re: case x - variable modes ...
Reply #1 - Nov 7^th, 2006, 3:19pm

I think what you need is just another variable, called "lastMode" or something, this way, when you change to mode #3, you can save the previous mode and restore it, i.e.:

Code:


for(int i = 0; i < myGraphic.length; i++){
  if (myGraphic[i].over()) {  
    myGraphic[i].lastMode = myGraphic[i].mode;
    myGraphic[i].mode=3;
    selected = i;
  } else {
    myGraphic[i].mode = myGraphic[i].lastMode; 
  }
}

It's better practice to access the data of objects using methods, so ultimately you might want to rewrite you code to look something like:

Code:


for(int i = 0; i < myGraphic.length; i++){
  if (myGraphic[i].over()) {  
    myGraphic[i].saveMode();
    myGraphic[i].setMode(3);
    selected = i;
  } else {
    myGraphic[i].restoreLastMode(); 
  }
}

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