ф

Greate
inventory = ds_list_create();

ds_list_add(inventory,"apple");
ds_list_add(inventory,"cherry");
ds_list_add(inventory,"lemon");
ds_list_add(inventory,"cucumber");
ds_list_add(inventory,"potato");
ds_list_add(inventory,"meat");
ds_list_add(inventory,"onion");
ds_list_add(inventory,"orange");
ds_list_add(inventory,"watermelon");
ds_list_add(inventory,"melon");
ds_list_add(inventory,"pumkin");
ds_list_add(inventory,"fish");
ds_list_add(inventory,"egg");

// Mouse events
mouse_x_pressed = 0;

// Swipe events
swipe_shift_x = 0;;
swipe_shift_x_last = 0;
swipe_shift_x_number = 0;

// GUI
box_width = 384;
box_height = 16;
box_slot_size = 64;
box_slot_space = 8;
Draw
// Draw item bar
draw_set_alpha(0.5)
draw_rectangle(x, y, x + box_width, y + box_height, false);
draw_set_alpha(1);

// Draw items
var size, items, i, cell;
cell = box_slot_size + box_slot_space;
items = floor(box_width / cell);
size = ds_list_size(inventory) - 1;

for (i = 0; i < items; i += 1)
{
var item, xx, yy, ii;
ii = i - swipe_shift_x_number;
item = ds_list_find_value(inventory, ii);
xx = x + (ii * cell) + swipe_shift_x;
yy = y;

draw_text(xx, yy, item);
}

// Mouse x to mouse GUI
var mouse_x_gui;
mouse_x_gui = (mouse_x - view_xview);
// Pressed
if (mouse_check_button_pressed(mb_left) or mouse_check_button_pressed(mb_right)){
mouse_x_pressed = mouse_x_gui;
swipe_shift_x_last = swipe_shift_x}
// Holded
if (mouse_check_button(mb_left) or mouse_check_button(mb_right)){
swipe_shift_x = swipe_shift_x_last + (mouse_x_gui - mouse_x_pressed);}
else{
var len;
len = cell * size;

if (-swipe_shift_x) > (len - (cell * items))
swipe_shift_x -= (swipe_shift_x + (len - (cell * items))) / 10;
if (-swipe_shift_x) < 0
swipe_shift_x -= (swipe_shift_x - 0) / 10}

// Swipe x to number converter
swipe_shift_x_number = floor(swipe_shift_x / cell);

// Debug
draw_text(mouse_x + 16, mouse_y, "mouse_x_gui:" + string(mouse_x_gui));
draw_text(mouse_x + 16, mouse_y + 16, "swipe_shift_x" + string(swipe_shift_x));
draw_text(mouse_x + 16, mouse_y + 32, "swipe_shift_x_last" + string(swipe_shift_x_last));