ds_grid_clear

This function can be used to clear a given DS grid to a specific value. All cells within the grid will then contain this value, which can be a real number or a string. The image below illustrates how this works:

Syntax:

ds_grid_clear(index, val);

Returns:

N/A

Example:

ds_grid_resize(global.Grid, room_width / 32, room_height / 32);
ds_grid_clear(global.Grid, -1)

The above code will resize the DS grid indexed in the global variable "Grid" and then clear it so that each cell holds the value -1.