This function will return the width of the given grid. This value is the number of cells the grid has along the x-axis and is always an integer, as shown in the image below:
|index||This index of the grid to find the width of.|
var i, j;
for (i = 0; i < ds_grid_width(grid); i += 1)
for (j = 0; j < ds_grid_height(grid); j += 1)
if ds_grid_get(grid, i, j) = 1
instance_create_layer(i * 32, j * 32, "Walls", obj_Wall);
The above code will loop through the ds_grid indexed in the variable "grid" and if the value found in any specific cell is equal to 1, it will then create an instance of "obj_Wall" at the appropriate position within the room.