Trigger for tower game in C# for wp7 [closed]

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I was thinking about building a tower defence game and was trying to find the best way to find the shortest path to the other side.

How can i do this?

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I know I need to re evaluate the path on every move due to people adding more towers. I am thinking I need to use visualtreehelper to find what is in the way.

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This might be better asked at https://gamedev.stackexchange.com/

You don't need to re-calculate the path all the time, only when a tower is created or destroyed.

The A* algorithm would be commonly used, there are many samples around. Making your game tile-based would simplify its use, as each tile would be a node, and it's trivial to work out the connections (i.e. up/down/left/right, providing the node isn't blocked).