Add path:shift()? #32

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1. Yonaba commented on Jun 30, 2014

   

   Yonaba

   on Jun 30, 2014

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   Can I have some use cases/examples where such a method would be really useful ?
2. saschagehlich commented on Jun 30, 2014

   

   saschagehlich

   on Jun 30, 2014

   ContributorAuthor

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   Well, if I have a path and I'd like an object to move along this path, I will make it move from node to node. As soon as I reached the node, I will want to get the next node and I don't need to know about the previous node any longer.
3. Yonaba

   added

   new feature

   on Jul 12, 2014
4. pancinteractive commented on Aug 27, 2014

   

   pancinteractive

   on Aug 27, 2014

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   You can create this relatively easily by populating a table with all node values. I created something like this for use with Corona SDK, so you can move and actor along the path.

   if path then
       print(('Path found! Length: %.2f'):format(path:getLength()))
       for node, count in path:nodes() do
       print(('Step: %d - x: %d - y: %d'):format(count, node:getX(), node:getY()))
       setX[#setX+1] = node:getX() -- populating coordinate table on each movement
       setY[#setY+1] = node:getY() -- populating coordinate table on each movement
       end
   end
   

   I assume this would be just as easy to bake into the actual library, but you know what they say about assuming.