Post processing the agent's path

The geometric shortest path will usually contain sharp corners.
We can eliminate these by post processing the path with the generateCurvedPath() method.

We do this with the following modification immediately after finding a path:

auto base_path = agent->findShortestPathTo(context,target);
if(base_path)
{
    path = agent->generateCurvedPath(*base_path,context,0,0,20,0.3f,0.4f);
}

(And a similar modification for paths away.)

See Path Post Processing for details about the generateCurvedPath() method.