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POGetting EXC_BAD_ACCESS signal received when i tried to get collision detection
 

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  1. POGetting EXC_BAD_ACCESS signal received when i tried to get collision detection
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    <p>I stuck at this position and don't know what went wrong in this,</p> <p>I have enabled ARC in my project. And i made softBody as follows</p> <p><strong>Ball.h</strong></p> <pre><code> B2Body *body[NUM_SEGMENT]; CCSprite *ball; </code></pre> <p><strong>Ball.mm</strong></p> <pre><code> ball = [CCSprite spriteWithFile:@"Ball1.2.png"]; ball.tag = 1; for(int i=0;i&lt;NUM_SEGMENT;i++){ float theta = deltaAngle*i; float x = radius * cosf(theta); float y = radius * sinf(theta); b2Vec2 circlePosition = b2Vec2(x/PTM_RATIO,y/PTM_RATIO); b2BodyDef bodyDef; bodyDef.type = b2_dynamicBody; bodyDef.position = (center + circlePosition); bodyDef.userData = &amp;ball; body[i] = world-&gt;CreateBody(&amp;bodyDef); outerBodyFixture[i]=body[i]-&gt;CreateFixture(&amp;fixtureDef); [bodies addObject:[NSValue valueWithPointer:body[i]]]; } </code></pre> <p>And I have given physics to the tiles as follows,</p> <p><strong>Tile.h</strong></p> <pre><code>CCSprite *tile; </code></pre> <p><strong>Tile.mm</strong></p> <pre><code>tile = [layer1 tileAt:ccp(i, j)]; tile.tag = 0; b2BodyDef tileDef; tileDef.type = b2_staticBody; tileDef.position.Set((tile.position.x+(tile.contentSize.width/2))/(PTM_RATIO), (tile.position.y + (tile.contentSize.height/2))/PTM_RATIO); tileDef.userData = &amp;tile; tileBody = world-&gt;CreateBody(&amp;tileDef); </code></pre> <p>Now i tried to catch collision detection and I have made code which will print the tag number of colliding bodies. The code is as follows,</p> <pre><code>std::vector&lt;MyContact&gt;::iterator pos; for (pos=_contactListener-&gt;_contacts.begin(); pos != _contactListener-&gt;_contacts.end(); ++pos) { MyContact contact = *pos; b2Body *bodyA = contact.fixtureA-&gt;GetBody(); b2Body *bodyB = contact.fixtureB-&gt;GetBody(); if (bodyA-&gt;GetUserData() != NULL &amp;&amp; bodyB-&gt;GetUserData() != NULL) { </code></pre> <p><strong>At this point Getting ERROR: EXC_BAD_ACCESS</strong></p> <pre><code> CCSprite *spriteA = (__bridge CCSprite *) bodyA-&gt;GetUserData(); </code></pre> <p><strong>At this point Getting ERROR: EXC_BAD_ACCESS</strong></p> <pre><code> CCSprite *spriteB = (__bridge CCSprite *) bodyB-&gt;GetUserData(); printf("contact :%d \n",spriteB.tag); } } </code></pre> <p>Don't Know whats wrong with this code,,Give me some solution for this</p>
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    1. PTQuestion
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    1. USRenaissance
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      1. VTUpMod
    1. CObad idea to use tile sprites, from what I remember cocos2d creates the tile sprites dynamically and may recreate or release them.
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      1. POGetting EXC_BAD_ACCESS signal received when i tried to get collision detection
      1. USLearnCocos2D
    2. COactually i want to add physics to some specific sprite..that's why i used tilesprite.
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      1. POGetting EXC_BAD_ACCESS signal received when i tried to get collision detection
      1. USRenaissance
 

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