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Editorial Team
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Asked: 2026-06-17T20:55:10+00:00

Below is a screenshot from a famous structure building game. As you can see

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Below is a screenshot from a famous structure building game.

enter image description here

As you can see rods are attached together with ball joints. I’m trying to achieve something similar with Cosos2d on iPhone. I’ve got two questions here:

  1. Should I draw those ball joints or should I just add them as sprites?
  2. I guess the rods are not drawn bur are rather images. But considering that the length of the rods will change depending on need, how do I make rods with different lengths from just one image?
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1 Answer

  1. Editorial Team

    I am not sure what would be the best approach for one. I would imagine that either way would be fine, but it would be harder to achieve whatever visual affect you want through drawing them. I think the hardest part would be making sure that they are anchored to vertices in a grid system that has the dimension that you want.

    As for (2) you can always scale your image. 

         CCSprite *rod = [CCSprite spriteWithFile:@"rod.png"];
     rod.scaleY = 2.0; //or scaleX

    Then rotate and change its anchor points as needed.

    Again I imagine the most difficult part would be anchoring them and positioning them correctly, so that align properly with the vertices.

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