java - Comparing items within the same set to eachother -


i have set of shapes , need determine shapes intersecting which. use 2 enhanced-for-loops (one within other) not working expected. seems comparing shape itself. added println() debugging purposes , console output @ end of question.

edit: i've added code interface drawables show how intersects(rectangle rectangle) , shape.getbounds() exposed. i've added collisions class show methods do.

edit 2: can't believe neglected mention: drawables set! drawables.add() behaves set.add()

*edit 8564985294238424:*i never initialize set collisions. have fixed this. works.


class collisionmonitor (includes problem method: set<collision> getcollisions() last in class)

package platformer;  import java.util.collection; import java.util.hashset; import java.util.set;   public class collisionmonitor {  private set<collision> collisions; private set<drawable> drawables;  public collisionmonitor(set<drawable> drawables) {     this.drawables = drawables; }  public set<drawable> getdrawables() {     return drawables; }  public void setdrawables(collection<? extends drawable> drawables) {     if (drawables != null)         this.drawables = (new hashset<drawable>(drawables)); }  public set<drawable> adddrawables(collection<? extends drawable> drawables) {     if (drawables != null && drawables.isempty() == false)         this.drawables.addall(drawables);     return this.drawables; }  public set<collision> getcollisions()    //problem method! {     set<drawable> temp = drawables;      (drawable s : drawables)     {         (drawable ss : temp)         {             system.out.println(s + ", " + ss);             /*if (s.intersects(ss.getbounds()))             {                 collisions.add(new collision(s, ss));             }*/         }     }      return collisions; }  }

interface drawable:

public interface drawable extends shape {     color color = new color(0, 0, 0);      public color getcolor(); }

class collision

public class collision {      drawable drawable1, drawable2;      public collision(drawable drawable1, drawable drawable2)     {         this.drawable1 = drawable1;         this.drawable2 = drawable2;     }  }

output:

platformer.enemy@660de2f0, platformer.enemy@660de2f0 platformer.enemy@660de2f0, platformer.enemy@660de2f0 platformer.enemy@660de2f0, platformer.enemy@660de2f0 platformer.enemy@660de2f0, platformer.enemy@660de2f0 platformer.enemy@660de2f0, platformer.enemy@660de2f0 platformer.enemy@660de2f0, platformer.enemy@660de2f0 platformer.enemy@660de2f0, platformer.enemy@660de2f0 platformer.enemy@660de2f0, platformer.enemy@660de2f0 platformer.enemy@660de2f0, platformer.enemy@660de2f0 platformer.enemy@660de2f0, platformer.enemy@660de2f0 platformer.enemy@660de2f0, platformer.enemy@660de2f0 platformer.enemy@660de2f0, platformer.enemy@660de2f0 platformer.enemy@660de2f0, platformer.enemy@660de2f0 platformer.enemy@660de2f0, platformer.enemy@660de2f0 platformer.enemy@660de2f0, platformer.enemy@660de2f0 platformer.enemy@660de2f0, platformer.enemy@660de2f0 platformer.bullet@26dea769, platformer.bullet@26dea769 platformer.bullet@f1e9457d, platformer.bullet@f1e9457d platformer.enemy@660de2f0, platformer.enemy@660de2f0 platformer.enemy@660de2f0, platformer.enemy@660de2f0 platformer.bullet@11bd2f5a, platformer.bullet@11bd2f5a platformer.enemy@660de2f0, platformer.enemy@660de2f0 platformer.enemy@660de2f0, platformer.enemy@660de2f0 platformer.enemy@660de2f0, platformer.enemy@660de2f0 platformer.enemy@660de2f0, platformer.enemy@660de2f0 platformer.bullet@70a511a, platformer.bullet@70a511a platformer.enemy@660de2f0, platformer.enemy@660de2f0 platformer.enemy@660de2f0, platformer.enemy@660de2f0 platformer.enemy@660de2f0, platformer.enemy@660de2f0 platformer.bullet@6ada16bc, platformer.bullet@6ada16bc platformer.bullet@6ba127e8, platformer.bullet@6ba127e8

temp isn't different drawables. it's pointing same object.

if want exlude exact same element use:

for (drawable s : drawables) {     (drawable ss : temp)     {         if (s == ss) continue;  // don't compare object

Comments

Post a Comment

Popular posts from this blog

.htaccess - First slash is removed after domain when entering a webpage in the browser -

sometimes when hit address of webpage in browser, removes first slash after domain. examples: www.mywebsite.com/scripts/script_6.php -> trying load www.mywebsite.comscripts/script_6.php www.mywebsite.com/test.php -> trying load www.mywebsite.comtest.php after entering again, loads page. a .htaccess settings must wrong: rewritebase / errordocument 404 http://www.mywebsite.com/oops.php errordocument 401 /notallowed.php rewriteengine on # turn on rewriting engine #gzip <ifmodule mod_deflate.c> addoutputfilterbytype deflate text/text text/html text/plain text/xml text/css application/x- javascript application/javascript </ifmodule> #end gzip rewritecond %{http_host} ^mywebsite\.com rewriterule ^(.*)$ http://www.mywebsite.com$1 [r=permanent,l] directoryindex index6.php rewriterule ^termsofuse/?$ termsofuse.php [nc,l] # handle requests "adpolicy" rewriterule ^privacy-policy/?$ privacy-policy.php [nc,l] # handle requ...
Read more

Automatically create pages in phpfox -

i have array of information of places , wanna use them create multiple pages in phpfox site. first tried manually insert data in phpfox database (in tables of phpfox_pages , phpfox_pages_text ). the page shown in site when opening it's link, site says: the page looking cannot found. do know other tables should manipulate make work? or know plugin phpfox same? thanks, solved ( @purefan guide): "pages" has user if take @ phpfox_user table, you'll found out how fetch new records on that. there 2 ambiguous fields in table ( password & password_salt ). can use script create values fields: <?php function generaterandomstring() { $length = 164; $characters = '-_0123456789abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz'; $randomstring = ''; ($i = 0; $i < $length; $i++) { $randomstring .= $characters[rand(0, strlen($characters) - 1)]; } return $randomstring; } $ssalt = '';...
Read more

c# - Farseer ContactListener is not working -

i'm using farseer in xna project, have trouble contactlistener. created class contactlistener these 2 error messages , don't know how fix problems. the type or namespace name 'contactlistener' not found (are missing using directive or assembly reference?) the type or namespace name 'contactimpulse' not found (are missing using directive or assembly reference?) what wrong contactlistener class? class mycontactlistener: contactlistener { void begincontact(contact contact) { /* handle begin event */ } void endcontact(contact contact) { /* handle end event */ } void presolve(contact contact, ref manifold oldmanifold) { fixture fixturea = contact.fixturea; fixture fixtureb = contact.fixtureb; if (fixtureb.collisioncategories == category.cat10) { contact.enabled = false; } } void postsolve(contact contact, ref contactimpulse impulse) { /* handle post-solve event */ } }...
Read more