curds01
commented
7 years ago We need to have an "explicit navigation mesh" agent generator.
Navigation meshes support named regions. In this case, if the explicit navigation mesh generator takes as arguments: a navigation mesh and a region name, the x-y position can be interpreted directly as that region name as a target.
There has to be a well-defined behavior if the x-y position does not project onto the named region either:
- Simply throw an error and put the burden on the user to get it right
- Try to project it to any point on the nav mesh. Warning if successful, error if not.
There is no facility for placing agents on arbitrary levels of a navigation mesh. For example, if a two-story building were modeled with a navigation mesh, placement onto the mesh at position (x,y) would project the point down from an infinite height and stop at the first polygon encountered. Thus, if two polygons project to the same (x, y) point, an agent will only be initialized on the upper polygon.