/// Map Array Storage where Map is your 2d Array


// define the size of each tile
var tile_size = 32;

// define the number of rows and columns in the map
var num_rows = array_height_2d(map);
var num_cols = array_length_2d(map, 0);

// define the offset of the currently visible row
var row_offset = 0;

// define the number of visible rows
var num_visible_rows = room_height div tile_size;

// draw the visible portion of the map
for (var row = row_offset; row < row_offset + num_visible_rows; row++) {
    for (var col = 0; col < num_cols; col++) {
        var tile = map[row, col];
        draw_sprite(tile_sprite, tile, col*tile_size, (row-row_offset)*tile_size);
    }
}

// increment the row offset when scrolling down
if (keyboard_check_pressed(vk_down)) {
    row_offset += 1;
}

// decrement the row offset when scrolling up
if (keyboard_check_pressed(vk_up)) {
    row_offset -= 1;
}