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Click And Drag - Increase/Decrease Value

[1 Reply]
- 06-Mar-2012 11:14 AM
- Forum: Programming Questions
Hello,

I have a circle that pops up when you click the mouse down, and if you were to drag the mouse outward (away from the circle), the circle gets bigger. But I also want it when you drag the mouse closer, the circle then begins to get smaller.

So like a highlighter, but with a circle. This is what I have so far:
1. void draw(){
3. ellipse(10, 10, draggingX ,draggingY);
5. }
7. Boolean isDragging = false;
8. int draggingReferenceX;
9. int draggingReferenceY;
11. int draggingX = 10;
12. int draggingY = 10;
15. void mousePressed(){
16. draggingX = 10;
17. draggingY = 10;
19. isDragging = true;
20. draggingReferenceX = mouseX;
21. draggingReferenceY = mouseY;
22. }
25. void mouseDragged(){
26. if(isDragging == true){
27. //println("dragging");
29. if(mouseX > draggingReferenceX && mouseY > draggingReferenceY){
30. draggingX ++;
31. draggingY ++;
32. }
33. else{
34. draggingX --;
35. draggingY --;
36. }
37. }
38. }
Now, this 'kind of' work... The circle will only start shrinking when the mouse has gone negative beyond the centre of the circle. I just want it so that, when you drag your mouse outward, it gets bigger. And smaller when you start moving the drag mouse towards the centre again.
Would appreciate any help. Thanks

Populating Array With XML Elements

[1 Reply]
- 03-Mar-2012 05:07 PM
- Forum: Programming Questions
Hello,

I've been trying to solve this for sometime now, and I'm stumped. What I'm doing is connecting to the BBC website and pulling the story out of this particular article. I can pull the data from the site fine, what I want to do is populate an array with some info thats being pulled.
1. int a;
2. int foundIntroLine;
4. String Articles[] = new String[10];
6. void setup(){
8. a = foundIntroLine;
9. while(a < bbcPage.length){
10. int indexArticle = bbcPage[a].indexOf("<p>");
11. int endArticle = bbcPage[a].indexOf("</p>");
13. if(indexArticle > 0 && endArticle > 0){
14. println("Article: "+bbcPage[a].substring(indexArticle + 3, endArticle));
15. }
16. a++;
17. }
18. //now I want to populate Articles[0 - 9] with the bbcPage.substring
19. }
The foundIntroLine is a value that is established somewhere else, its where all the article lines start on the web page, bbcPage is an array that uses 'loadStrings' from the BBC URL.

Now, how would I go about populating Articles with the bbcPage.substrings?

Thanks

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