This asset is now free and no more supported.
Build with and for GMS 1.4. Grid path is based on a breadth first search algorithm.
scr_find_grid_path(id, target_x, target_y, diag, cell_size)
It finds the shortest way from id.x, id.y to target.x, target.y. All coordinates of the path is kept on a ds_list. Perfect for turn by turn grid based game. As always, it's well commented. Mouse click movements. YYC tested.
End User Licence Agreement (EULA).
Cleaner code and added parentheses to statements and semicolon to all lines.