http://www.cocos2d-iphone.org/forum/ A fast, easy to use, free, and community supported 2D game engine en-US Sat, 20 Mar 2010 13:23:40 +0000 http://bbpress.org/?v=1.0.2 q http://www.cocos2d-iphone.org/forum/search.php http://www.cocos2d-iphone.org/forum/topic/5170#post-30897 Sat, 20 Mar 2010 12:06:08 +0000 julesv 30897@http://www.cocos2d-iphone.org/forum/ <p>How could I make it so my program returns the GID of the tile I just touched on? I loaded my level1 tiled map through it's enum tag thing. Then I tired in despair something like this:<br /> <pre><code>- (void)ccTouchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [touches anyObject]; CGPoint point = [touch locationInView:[touch view]]; point = [[CCDirector sharedDirector] convertToGL:point]; CCNode *level1temp = [self getChildByTag:kTagLevel1]; [level1temp setTileGID:1 at:ccp(touch.x,touch.y)]; }</code></pre> <p>Thanks for your help. </p> http://www.cocos2d-iphone.org/forum/topic/5169#post-30896 Sat, 20 Mar 2010 10:49:33 +0000 Happyjimbo 30896@http://www.cocos2d-iphone.org/forum/ <p>Hey guys,</p> <p>Our app has just been approved on the appstore, it's called Fidi and designed around using the full rotation of the iPhone/iPad Touch device. Took just over 4 weeks being mostly a 1 man project and of course uses Cocos2d :) Uses OpenFeint too.</p> <p><a href="http://itunes.apple.com/gb/app/fidi/id362481685?mt=8" rel="nofollow">http://itunes.apple.com/gb/app/fidi/id362481685?mt=8</a></p> <p>Here's some promo codes, would be great if you could leave some feedback too (let others know if you use them):</p> <p>T9YAY6FT97EJ<br /> 7MJATL4LNHLH<br /> 3KR7YM7N66PJ<br /> JPE6FHYNWX6E<br /> EXRMAXLJ3WJ4</p> <p>Video too, though the quality is not great at the moment I'm afraid:</p> <p><object width="480" height="385"><param name="movie" value="http://www.youtube.com/v/u2zPo4uNUNo&amp;hl=en_US&amp;fs=1&amp;" />&lt;/param&gt;</p> <param name="allowFullScreen" value="true" />&lt;/param&gt;</p> <param name="allowscriptaccess" value="always" />&lt;/param&gt;<embed src="http://www.youtube.com/v/u2zPo4uNUNo&amp;hl=en_US&amp;fs=1&amp;" type="application/x-shockwave-flash" width="480" height="385" />&lt;/embed&gt;</object></p> <p><img src="http://percypea.co.uk/fidi/shot1.png" /><br /> <img src="http://percypea.co.uk/fidi/shot2.png" /><br /> <img src="http://percypea.co.uk/fidi/shot3.png" /><br /> <img src="http://percypea.co.uk/fidi/shot4.png" /></p> <p>Will be great to hear opinions, thanks! :) </p> http://www.cocos2d-iphone.org/forum/topic/5163#post-30895 Sat, 20 Mar 2010 10:36:15 +0000 patrickC 30895@http://www.cocos2d-iphone.org/forum/ <p>In these cases it's always a good idea to take a look at the documentation first:</p> <p><a href="http://www.cocos2d-iphone.org/api-ref/latest-stable/interface_c_c_t_m_x_layer.html" rel="nofollow">http://www.cocos2d-iphone.org/api-ref/latest-stable/interface_c_c_t_m_x_layer.html</a></p> <p>There you'll find answers to all your questions.<br /> I'd say you're interested in:<br /> <pre><code>- (unsigned int) tileGIDAt:(CGPoint)tileCoordinate returns the tile gid at a given tile coordinate. if it returns 0, it means that the tile is empty. This method requires the the tile map has not been previously released (eg. don&#39;t call [layer releaseMap])</code></pre> <p>AND<br /> <pre><code>- (void) setTileGID:(unsigned int)gid at:(CGPoint)tileCoordinate sets the tile gid (gid = tile global id) at a given tile coordinate. The Tile GID can be obtained by using the method &quot;tileGIDAt&quot; or by using the TMX editor -&gt; Tileset Mgr +1. If a tile is already placed at that position, then it will be removed.</code></pre> <p>Once you read the manual and understand the tools, if something's not clear to you then you can ask more questions and people would be happy to help.<br /> Nothing beats doing your own homework first and showing that you tried before you asked :)<br /> Good luck! </p> http://www.cocos2d-iphone.org/forum/topic/5168#post-30894 Sat, 20 Mar 2010 10:29:47 +0000 MrLucky 30894@http://www.cocos2d-iphone.org/forum/ <p>Yeah, in your cocos2d-iphone-0.9.9-rc0 folder, just open the cocos2d-iphone.xcodeproj and you are good to go </p> http://www.cocos2d-iphone.org/forum/topic/5167#post-30893 Sat, 20 Mar 2010 10:17:06 +0000 patrickC 30893@http://www.cocos2d-iphone.org/forum/ <p>I would subclass CCBitmapFontAtlas, then add a custom method that arranges all the children along a curve.<br /> Calculate point on curve, calculate tangent (angle), place letter, repeat for next letter/point.</p> <p>Calculating the coordinates and tangent of a point on a circle is pretty easy, google around and it shouldn't take you long to do it. </p> http://www.cocos2d-iphone.org/forum/topic/5164#post-30892 Sat, 20 Mar 2010 10:09:24 +0000 zombie 30892@http://www.cocos2d-iphone.org/forum/ <p>Its not a problem to set the position of the particle system every frame, But try to avoid to initializations of object during your game is running. I do not know how many particles your CCParticleSun is allocating. The higher that number the worse. Preallocate some systems and reuse them. You can improve this even further by batching them, but this is much more work. Start with the preallocation.</p> <p>Hope thats helpful somehow. </p> http://www.cocos2d-iphone.org/forum/topic/5164#post-30891 Sat, 20 Mar 2010 09:42:30 +0000 mack 30891@http://www.cocos2d-iphone.org/forum/ <p>I run this method via schedule in 5 sec intervals. I'm thinking it may have something to do with initializing obstacle every tick.</p> <pre><code>-(void) moveObstacleTick: (ccTime) dt { if([self isObstacleOnScreen] == NO) { obstacleType = 1+arc4random()%numberOfObstacles; switch (obstacleType) { case fireBall: obstacle = [CCParticleSun node]; obstacle.texture = [[CCTextureCache sharedTextureCache] addImage: @&quot;fire.pvr&quot;]; [obstacle setEmissionRate:50]; break; default: break; } [obstacle setPosition: ccp(481,321)]; [self addChild:obstacle z:0 tag:obstacleTag]; CGPoint fireFromLane; // #2:lane1 #3:lane2 #4:lane3 int randomLane = lane1 + arc4random()%lane1; switch (randomLane) { case lane1: fireFromLane = ccp(490, 190); break; case lane2: fireFromLane = ccp(490, 140); break; case lane3: fireFromLane = ccp(490, 90); break; default: break; } [obstacle setPosition:fireFromLane]; id throw = [CCMoveTo actionWithDuration:3 position: ccp(-50, fireFromLane.y)]; id actionSeq = [CCSequence actions:throw, nil]; [obstacle runAction:actionSeq]; } }</code></pre> http://www.cocos2d-iphone.org/forum/topic/5164#post-30890 Sat, 20 Mar 2010 09:17:35 +0000 zombie 30890@http://www.cocos2d-iphone.org/forum/ <p>That should not happen. Give some more details about what you are doing, please. </p> http://www.cocos2d-iphone.org/forum/topic/5154#post-30889 Sat, 20 Mar 2010 09:12:49 +0000 ob1 30889@http://www.cocos2d-iphone.org/forum/ <p>Hey,</p> <p>For BlackBerry, you usually code with Eclipse or JDE (RIM's own IDE). I don't think you can use visual studio.</p> <p>Shameless plug, I just released my first BB game (a port):</p> <p><a href="http://appworld.blackberry.com/webstore/content/6709" rel="nofollow">http://appworld.blackberry.com/webstore/content/6709</a></p> <p>Cheers. </p> http://www.cocos2d-iphone.org/forum/topic/5168#post-30888 Sat, 20 Mar 2010 08:46:15 +0000 MikeSz 30888@http://www.cocos2d-iphone.org/forum/ <p>your step 1 is all wrong</p> <p>download the packed archive with cocos2d</p> <p>go to the folder, find.... ummm the xcodeproj file, dont remember name, not on a mac now</p> <p>open it and you will have all the targets/sample projects inside </p> http://www.cocos2d-iphone.org/forum/topic/5168#post-30887 Sat, 20 Mar 2010 08:34:19 +0000 MisterX 30887@http://www.cocos2d-iphone.org/forum/ <p>I read Riq's blog on the "most unknown coco2ds feature, the tests and samples".</p> <p>As a new user to cocos2d, the instructions he gave were not quite clear to me.</p> <p>1. Open the cocos2d Xcode project ( I assume this means to create a NEW Xcode project with the regular cocos2D template).</p> <p>2. Select the test target: Xcode -&gt; Project -&gt; Set Active Target -&gt; eg: TransitionTest (When I try to do this it gives me only two choices, 1 - The name of the new project I created (ex. "Testing1") or 2 - "cocos2D libraries"</p> <p>3. Make sure that the running executable is correct: Xcode -&gt; Project -&gt; Set Active Executable -&gt; eg: TransitionTest (When I try to set the active executable, the only option is the name of the new project I created (ex. "Testing1")</p> <p>4. Build and run: Xcode -&gt; Build and run (This I understand, if I could get step 2 and 3 to work)</p> <p>On step 2, if I select "cocos2D libraries" I still can only select the name of my new project from step 3.</p> <p>Following the given instructions above I am not able to select any of the tests for Active Target or Active Executable. Could someone please explain what I need to do or what I am missing so I can build and run these tests? </p> http://www.cocos2d-iphone.org/forum/topic/5154#post-30886 Sat, 20 Mar 2010 08:30:26 +0000 computer-man 30886@http://www.cocos2d-iphone.org/forum/ <p>ok thanks and one last question: the visual studio used to create video games for blackberry? </p> http://www.cocos2d-iphone.org/forum/topic/4717/page/2#post-30885 Sat, 20 Mar 2010 08:10:53 +0000 itlgames 30885@http://www.cocos2d-iphone.org/forum/ <p>I did "Alone", the isometric platformer game, you did try it: <a href="http://www.cocos2d-iphone.org/forum/topic/4634" rel="nofollow">http://www.cocos2d-iphone.org/forum/topic/4634</a> </p> http://www.cocos2d-iphone.org/forum/topic/4634/page/2#post-30884 Sat, 20 Mar 2010 08:08:24 +0000 itlgames 30884@http://www.cocos2d-iphone.org/forum/ <p>I think I will do that, ease the initial levels a bit more! I have played so many times those levels that I can pass them even blind...</p> <p>@Lev, I think I know what you mean, releasing the right finger would stop jumping, is that what you mean?<br /> you can still do that just release the left finger, the fact that the jump button doesn't control the length is because some times you just need to jump vertically, then concentrate on the d-pad control, to move, note you can also control the direction of the jump, this is vital in some levels, so you jump, then change direction on the fly. I guess this is all inheritance from those ZX Spectrum games, try play Head over Heels and you will understand what I mean (there is a nice free PC remake by the way: <a href="http://retrospec.sgn.net/games/hoh/)" rel="nofollow">http://retrospec.sgn.net/games/hoh/)</a></p> <p>In the other hand, would it help if I put an option to inverse controls? so d-pad on right, and jump/fire on left?</p> <p>Thanks guys for your input. </p> http://www.cocos2d-iphone.org/forum/topic/5167#post-30883 Sat, 20 Mar 2010 06:57:06 +0000 jayhaase 30883@http://www.cocos2d-iphone.org/forum/ <p>I would like to display a short text phrase along a curve (imagine a semi-circle and then imagine the letters of the text hugging the outline of the semi-circle).</p> <p>How can text be rendered along a curve with cocos2d?</p> <p>Thanks, Jay. </p> http://www.cocos2d-iphone.org/forum/topic/5160#post-30882 Sat, 20 Mar 2010 06:20:46 +0000 mobilebros 30882@http://www.cocos2d-iphone.org/forum/ <p>I believe they are just C functions:</p> <pre><code>cpSlideJointSetMin(joint, min); cpSlideJointSetMax(joint, max);</code></pre> <p>where joint is the joint/constraint var. </p> http://www.cocos2d-iphone.org/forum/topic/4634/page/2#post-30881 Sat, 20 Mar 2010 05:21:37 +0000 blackmouth 30881@http://www.cocos2d-iphone.org/forum/ <p>@itlgames</p> <p>I never got through the first level but after seeing your video walk-through I know why. I played again a week ago and made it back to the robots &amp; aliens room . I realize now that there is a bottom room with a knife. I couldn't tell because I thought it was just a reflection of the top room door. </p> <p>I don't think you need to entirely redesign the levels at the moment. I think you just need to ease in the difficulty. For example, you should make the first key really easy to get. Like a platform straight to the key with one jump of spikes. This way you ease in the difficulty. </p> <p>I like the shadow, it really helps with the jumps. </p> http://www.cocos2d-iphone.org/forum/topic/5045#post-30880 Sat, 20 Mar 2010 05:01:17 +0000 tmsquasher 30880@http://www.cocos2d-iphone.org/forum/ <p>Hey riq, thanks for your response.</p> <p>This all takes place in a "Global Rankings" scene that I created. Upon initialization, I submit the user's total score. At the end of the 'scorePostOk:' method, I do a rank request via 'requestRankForScore:andCategory:'. At the end of the 'scoreRequestRankOk:' method, I do a final request for the top 100 scores via 'requestScores:limit:offset:flags:category:'. </p> <p>So, I basically am submitting the user's score, then requesting that score's rank, then requesting the top 100 scores, all in sequence. This is probably not the best way to do this, but it was what I came up with.</p> <p>Hopefully this gives you a better idea of where I'm coming from.</p> <p>Your thoughts are appreciated! </p> http://www.cocos2d-iphone.org/forum/topic/5166#post-30879 Sat, 20 Mar 2010 04:54:33 +0000 Vicious Cuts 30879@http://www.cocos2d-iphone.org/forum/ <p>Hey I'm just trying to fool around making a random game to get a better understanding of everything and I would like to know how to make a sprite jump straight up.</p> <p>Lets say the user touches the screen or a button and the sprite jumps as long as a the user has the button held down for a max of 2 seconds or something along those lines. When the user releases the button or the max time has been reached the sprite will fall back down.</p> <p>Now I know we will have to use velocity on the x/y values but exactly how to do all this eludes me.</p> <p>If there's any tutorials or open source projects out there that anyone knows about I'd love to have the chance to take a look. </p> http://www.cocos2d-iphone.org/forum/topic/4717/page/2#post-30878 Sat, 20 Mar 2010 04:51:10 +0000 pfg2009 30878@http://www.cocos2d-iphone.org/forum/ <p>Thank you for the review, itlgames! What's your game?</p> <p>Doodle Blast! is my 7th game and it started life more as a dare than seriously structured effort. The other games have died pretty shortly after being published so it's not like I know some magical formula. I just got lucky this time. It almost seems that the more I try, the more likely I am to fail.</p> <p>However, I think I might agree with you. Simpler can be better, at least to test out the waters before you invest serious time and effort into it. </p> http://www.cocos2d-iphone.org/forum/topic/5145#post-30877 Sat, 20 Mar 2010 04:32:58 +0000 programmerdave 30877@http://www.cocos2d-iphone.org/forum/ <p>Thanks riq </p> http://www.cocos2d-iphone.org/forum/topic/5165#post-30876 Sat, 20 Mar 2010 04:14:03 +0000 karthik 30876@http://www.cocos2d-iphone.org/forum/ <p>hello</p> <p>Im getting a proper output of my game but after changing the default.png and icon.png. I cleaned my target, after cleaning it im not getting my output.. Can anyone explain me why this is happening. This is happening for the second time. just a blank screen of default.png is coming after that agin going back to the iphone screen. </p> http://www.cocos2d-iphone.org/forum/topic/4634/page/2#post-30875 Sat, 20 Mar 2010 03:06:46 +0000 Lev 30875@http://www.cocos2d-iphone.org/forum/ <p>Nice work, I really like the iso pixel art!</p> <p>I was a little surprised that there's no inertia in the jumps. I think it would be easier for me if the jump distance were governed by the length of time the jump button is held. Perhaps this is because I've more dexterity in my right hand, and timing being more difficult to articulate than the direction state. </p> http://www.cocos2d-iphone.org/forum/topic/5161#post-30874 Sat, 20 Mar 2010 02:30:30 +0000 zenkimoto 30874@http://www.cocos2d-iphone.org/forum/ <p>Awesome! Thanks Riq! </p> http://www.cocos2d-iphone.org/forum/topic/4634/page/2#post-30873 Sat, 20 Mar 2010 01:50:54 +0000 David994A 30873@http://www.cocos2d-iphone.org/forum/ <p>Thanks for the walkthrough video, I'll give it a try :) </p> http://www.cocos2d-iphone.org/forum/topic/5156#post-30872 Sat, 20 Mar 2010 01:30:00 +0000 randomtruth 30872@http://www.cocos2d-iphone.org/forum/ <p>Is the sprite sheet added to your main layer or your subclass of CCSprite?<br /> If it is on your main layer, you need to over ride the -setPosition function (of your parent CCSprite) with this.<br /> <pre><code>-(void)setPosition:(CGPoint)p { float x = position_.x-p.x; float y = position_.y-p.y; child.position = ccp(child.position-x,child.position.y-y); position_ = p; isTransformDirty_ = isInverseDirty_ = YES; }</code></pre> http://www.cocos2d-iphone.org/forum/topic/5068#post-30871 Sat, 20 Mar 2010 01:23:44 +0000 Codemattic 30871@http://www.cocos2d-iphone.org/forum/ <p>"multiply it by (1-scale)."</p> <p>Maybe its 1.0/scale instead? So if you had a scale of 2.0 you multiply it by 0.5? </p> http://www.cocos2d-iphone.org/forum/topic/5164#post-30870 Sat, 20 Mar 2010 01:07:02 +0000 mack 30870@http://www.cocos2d-iphone.org/forum/ <p>Is this normal? how do you guys manage a stable fps with a particle system. I'm moving a particle across the screen every 5 seconds and every time I get a 10 fps decrease of CCParticleSun and even higher on CCParticleMeteor, dropping it down to 30 fps. </p> http://www.cocos2d-iphone.org/forum/topic/4940#post-30869 Sat, 20 Mar 2010 00:39:06 +0000 MisterX 30869@http://www.cocos2d-iphone.org/forum/ <p>Yes, of course Ray Wenderlich, duh. I thought you were maybe referring to Zombie Smash's author (I don't even know who that is right now).</p> <p>Yes I tested Ray's tutorial game MANY times on my iPod before I discovered I was compiling a debug version the entire time. Compiling to a release version makes a HUGE difference in performance.</p> <p>On my test app:</p> <p>Debug = 20 to 30 FPS with jerky movement</p> <p>Release = 50 to 60 FPS with smooth movement </p> http://www.cocos2d-iphone.org/forum/topic/5094#post-30868 Sat, 20 Mar 2010 00:34:29 +0000 asinesio 30868@http://www.cocos2d-iphone.org/forum/ <p>@misterx - Promo codes function like itunes gift cards that basically entitle you to 1 free download of the application.</p> <p>Go to the iTunes Store, click "Redeem", and paste in the promo code.</p> <p>Each time you release an updated version of your app, you get 50 promo codes to give out. They work great for getting reviews on web sites. </p> http://www.cocos2d-iphone.org/forum/topic/4940#post-30867 Sat, 20 Mar 2010 00:18:39 +0000 Steve Oldmeadow 30867@http://www.cocos2d-iphone.org/forum/ <p>Ray's app is the game at the URL you posted. Ray is the author - as in Ray Wenderlich. I'm glad you sorted out your problem. I suggested a release version on a device because your problem was either you were running a debug version or your simulator had bad performance. I'm glad you found the issue.</p> <p>For your further adventures - my golden rule is always test performance with a release version on a device. As you have pointed out the debug version may contain logging statements but release versions are also built with different compiler settings which make them faster. </p> http://www.cocos2d-iphone.org/forum/topic/5158#post-30866 Sat, 20 Mar 2010 00:17:20 +0000 riq 30866@http://www.cocos2d-iphone.org/forum/ <p>@arsenio: it makes sense if the sprites share the same texture </p> http://www.cocos2d-iphone.org/forum/topic/4940#post-30865 Sat, 20 Mar 2010 00:10:07 +0000 MisterX 30865@http://www.cocos2d-iphone.org/forum/ <p>Wayne and I are just dumb noobs I guess! lol I just found the solution to the problem!!</p> <p>Under "Active Configuration" in Xcode (from the drop down on upper left of screen), you need to check "Release" and make sure "Debug" is NOT checked. I had Debug checked, and this must be generating a bunch of debug statements on the fly in a similar manner to having "trace" statements enabled when you compile a Flash project (which will make your Flash game slow to a crawl).</p> <p>After making this change, recompiling and testing on my IPod Touch the tutorial game runs PERFECTLY SMOOTH now!! Yeay!! It even runs smooth with a 480 x 320 backdrop png image and a 480 x 320 overlay image. And with the double full screen png images it stays in the 50 to 60 FPS range! My God, this is wonderful! lol I am now officially impressed by Cocos2D!!! Wow, this makes me so happy :):):) lol</p> <p>Steve - No, I have not run a Cocos2D demo on my device, nor have I run Zombie Smash (I assume "Ray" must be the author?). I am totally new to Cocos2D and have only owned an iPod Touch for 2.5 months. My name is Steve too by the way. </p> http://www.cocos2d-iphone.org/forum/topic/5148#post-30864 Sat, 20 Mar 2010 00:01:56 +0000 Steve Oldmeadow 30864@http://www.cocos2d-iphone.org/forum/ <p>The code is the same for deforming the vertices. An fbo is attached to a texture. All the code you need is sitting in cocos2d right now. </p> http://www.cocos2d-iphone.org/forum/topic/5148#post-30863 Fri, 19 Mar 2010 23:51:45 +0000 manucorporat 30863@http://www.cocos2d-iphone.org/forum/ <p>yeah, I don't want to use FBO, only deforms a texture. </p>