java - CPU usage increases in time -


i making game (asteroids, ship destroys asteroids bullets) , have problem:

if spawn 50 asteroids @ start, cpu usage 2-3%. ok.
if spawn 5 asteroids , play game , moment when there 50 asteroids (increasing each level, when destoy previous), cpu usage becomes 20%
in addition if destroy 49/50 asteroid , leave one alive, cpu usage still 20%, though there nothing compute ( mean moving, collssion detection, etc.)

i have main gameloop timertask

public void startgameloop() {     timer.schedule(gamelooptask, 0, 17);     timer.schedule(updatescoreandlifestask, 2000, 300); // update score views } class gameloop extends timertask {     public void run() {         game.updatestate();         openglview.requestrender();     } } public void updatestate() {     ship.move();      for(int i=0; i<asteroids.size();i++) // asteroids , ship.bullets arraylists         asteroids.get(i).move();      for(int i=0; i<ship.bullets.size();i++)         ship.bullets.get(i).move();      detectcollision(); } public void detectcollision() {     detectcollisionasteroidswithbullets();     if(ship.isalive && !ship.isimmortal)         detectcollisionasteroidswithship();      }

and detectcollision method loops copy of ship.bullets , asteroids arraylists:

public void detectcollisionasteroidswithbullets() {     mainloop: for(int b=0; b < ship.bullets.size(); b++) {           for(int a=0; a<asteroids.size(); a++) {

and

public void detectcollisionasteroidswithship() {             mainloop: for(int a=0; a<asteroids.size(); a++) {         if(isaabboxintersectwithaabbox(asteroids.get(a).aabbcoords, ship.aabbcoords)) {

so shouldn't use cpu hard if there only 1 asteroid. destroying bullets , asteroids = asteroids.remove(asteroid); (i remove arraylist

please, me, have no idea why keeps using cpu if there loops works prety 50 asteroids , sure shouldn't 20% cpu usage 1 asteroid

are supposed make clones of existing objects? asteroids destroy still there in game after destroy them.

you should remove them or start using them again.


Comments

Post a Comment

Popular posts from this blog

apache - Remove .php and add trailing slash in url using htaccess not loading css -

i have add following code htaccess file removing .php extension , add trailing slash urls. worked fine reduced page loading speed , css code not loading @ all. pages ugly. please help rewriteengine on rewritebase / ## hide .php extension snippet # externally redirect /dir/foo.php /dir/foo rewritecond %{the_request} ^[a-z]{3,}\s([^.]+)\.php [nc] rewriterule ^ %1/ [r,l] # add trailing slash rewritecond %{request_filename} !-f rewritecond %{request_uri} !/$ rewriterule . %{request_uri}/ [l,r=301] # internally forward /dir/foo /dir/foo.php rewritecond %{request_filename} !-d rewritecond %{request_filename}.php -f rewriterule ^(.*?)/?$ $1.php [l] we can rewrite urls using .htaccess files. before writing in .htaccess files need verify kind of server using. can check server adding a <?php phpinfo(); ?> in php page. ensure mod_rewrite module enabled in apache server. can identified checking phpinfo included page. common methods used url rewriting follows ...
Read more

inno setup - TLabel or TNewStaticText - change .Font.Style on Focus like Cursor changes with .Cursor -

is possible change .font.style on focus tlabel or tnewstatictext happens cursor when use .cursor ? there no built-in support track mouse hovering in inno setup @ time. however, intercepting window procedure of controls can track yourself. following example need innocallback library: [setup] appname=my program appversion=1.5 defaultdirname={pf}\my program outputdir=userdocs:inno setup examples output [files] source: "innocallback.dll"; destdir: "{tmp}"; flags: dontcopy [code] #ifdef unicode #define aw "w" #else #define aw "a" #endif const gwl_wndproc = -4; wm_mousemove = $0200; type wparam = uint_ptr; lparam = longint; lresult = longint; twindowproc = function(hwnd: hwnd; umsg: uint; wparam: wparam; lparam: lparam): lresult; function setcapture(hwnd: hwnd): hwnd; external 'setcapture@user32.dll stdcall'; function releasecapture: bool; external 'releasecapture@user32.dll stdcall'; func...
Read more