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POSDL_Surface disappears after game runs for several minutes?
 

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  1. POSDL_Surface disappears after game runs for several minutes?
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    <p>after running my asteroids game for several minutes the SDL_Surface representing my ship disappears. Somehow the surface that holds the rotated image (rot) of the ship is getting set to NULL. I can't figure out why! Before I added the line <code>if(rot != NULL &amp;&amp; image != NULL)</code> the program would crash after running for a about a minute an thirty seconds, but now the image just disappears. I can't seem to figure out whats wrong! Thanks in advance!</p> <p>Sprite Class functions involving rotation and rendering.</p> <pre><code>void Sprite::Rotate(double angleAdd) { rotated = true; double temp = 0; angle += angleAdd; temp = angleAdd + angle; if (temp &gt;= 360) angleAdd = temp - 360; if (temp &lt;= 360) angleAdd = temp + 360; rot = rotozoomSurface(image, angle , 1.0, 1); } void Sprite::Draw(SDL_Surface* screen) { if(image == NULL) SDL_FillRect(screen, &amp;rect, color); else { if (rotated) { rotRect.x = x; rotRect.y = y; //Center the image if(rot != NULL &amp;&amp; image != NULL){ rotRect.x -= ((rot-&gt;w/2) - (image-&gt;w/2)); rotRect.y -= ((rot-&gt;h/2) - (image-&gt;h/2)); } SDL_BlitSurface(rot, NULL, screen, &amp;rotRect); } else SDL_BlitSurface(image, NULL, screen, &amp;rect); } } bool Sprite::SetImage(std::string fileName) { imageFileName = fileName; SDL_Surface* loadedImage = NULL; loadedImage = SDL_LoadBMP(fileName.c_str()); if(loadedImage == NULL) { if (debugEnabled) printf("Failed to load image: %s\n", fileName.c_str()); SDL_FreeSurface(loadedImage); return false; } else { image = SDL_DisplayFormat(loadedImage); SDL_FreeSurface(loadedImage); return true; } } </code></pre> <p>Main:</p> <pre><code> if (arrowPressed[0]) { ship.SetImage(shipFor.GetImage()); if(!phase) ship.Accel(-moveSpeed); else ship.Accel(-moveSpeed * 2); } if (arrowPressed[1]) { ship.Rotate(turnSpeed); ship.SetImage(shipRig.GetImage()); } if (arrowPressed[3]) { ship.Rotate(-turnSpeed); ship.SetImage(shipLef.GetImage()); } if (arrowPressed[0] &amp;&amp; arrowPressed[1]) ship.SetImage(shipForRig.GetImage()); if (arrowPressed[0] &amp;&amp; arrowPressed[3]) ship.SetImage(shipForLef.GetImage()); if (!arrowPressed[0] &amp;&amp; !arrowPressed[1] &amp;&amp; !arrowPressed[3]) ship.SetImage(shipNor.GetImage()); if (ship.GetCenterX() &gt;= RESX - 40) ship.SetPosCentered(50, ship.GetCenterY()); if (ship.GetCenterX() &lt;= 40) ship.SetPosCentered(RESX - 50, ship.GetCenterY()); if (ship.GetCenterY() &gt;= RESY - 40) ship.SetPosCentered(ship.GetCenterX(), 50); if (ship.GetCenterY() &lt;= 40) ship.SetPosCentered(ship.GetCenterX(), RESY - 150); </code></pre>
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    1. PO
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      1. PTAnswer
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    1. PTQuestion
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    1. USPearman
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    1. PO
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    1. VO
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      1. POSDL_Surface disappears after game runs for several minutes?
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      1. VTUpMod
    1. COhow much memory does your program use? i suspect this is a memory leak.
      singulars
      1. POSDL_Surface disappears after game runs for several minutes?
      1. USBartlomiej Lewandowski
 

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