MP Grids allow you to create dynamic paths on the fly that will find a path between two points, avoiding instances along the way.
Great for
Enemies searching for the player.
Automated instances that search for food or supplies.
Setting a Grid
First you can set the grid size, depending on how your room is set up, for example:
global.grid=mp_grid_create(0,0,room_width / 64, room_height / 64, 64, 64);
which would set a grid size of 64.
You can set which instances need to be avoided by adding them to the grid:
mp_grid_add_instances(global.grid,obj_wall,true); ...
