Okay, what if I wanted it sorted in another order, such as lowest damage to highest damage? Btw thanks.
Yeah. That would be a bit of a pain, there's probably an easier way somehow.
Okay that explains a fair bit, thank you!
Ok, this is what I have so far (its not much, but i'm a bit lost).
inventory_array = ds_grid_create(7,5) //7 columns, 5 rows
inventory_array[0,0] = "training sword" //item
inventroy_array[0,1] = 10 //gold value
inventory_array[0,2] = "sword" //Item categorie
inventory_array[1,0] = "dagger"
inventory_array[1,1] = 8
inventory_array[1,2] = "sword"
inventory_array[2,0] = "purple shield"
inventory_array[2,1] = 20
inventory_array[2,2] = "sheild"
inventory_array[3,0] = "standard shield"
inventory_array[3,1] = 10
inventory_array[3,2] = "shield"
ds grids are not the same as arrays. Their syntax is different. I'm actually surprised that is not throwing you an error.Thank you so much! How would I use that to draw the items in the inventory? Also how would I know which item is selected?Good job! .. BUT
You can basically get rid of this line:
----------------------------------------------------------------------------------------------
inventory_array = ds_grid_create(7,5);
----------------------------------------------------------------------------------------------
.. and then you would be using inventory_array as a 2D Array
However, if you want to keep that line and actually use it as a grid..
Then inserting items into it would look like this:
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ds_grid_set( inventory_grid , 0, 0, "training sword");
ds_grid_set( inventory_grid , 0, 1, 10);
ds_grid_set( inventory_grid , 0, 2, "sword");
----------------------------------------------------------------------------------------------
or this ( accesor version )
----------------------------------------------------------------------------------------------
inventory_grid[# 0,0] = "training sword";
inventory_grid[# 0,1] = 10;
inventory_grid[# 0,2] = "sword";
----------------------------------------------------------------------------------------------
Hope that helps.
This might actually be a good time to show you how using scripts might make things easier.
You don't need one right now, but it's good to start thinking about how they can help you organize things.
SCRIPT scr_inventory_insert:
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///scr_inventory_insert( item, value, category)
var insert_position = array_height_2d( inventory_array );
inventory_array[ insert_position ,0] = argument0;
inventory_array[ insert_position ,1] = argument1;
inventory_array[ insert_position ,2] = argument2;
----------------------------------------------------------------------------------------------
If you use your own script similar to that you could replace the code you posted with:
----------------------------------------------------------------------------------------------
scr_inventory_insert( "training sword", 10, "sword" );
scr_inventory_insert( "dagger", 8 "sword" );
scr_inventory_insert( "purple shield", 20, "shield" );
scr_inventory_insert( "standard shield", 10, "shield" );
----------------------------------------------------------------------------------------------
inv_x = 32; //top left corner x
inv_y = 32; //top left corner y
h_cells = 7; //The number of cells across
v_cells = 5; //The number of cells down
cell_size = 14; //The width and the height of a table cell
border_padding = 4; //Padding between the border and the cells.
end_x = inv_x+(h_cells*(cell_size+border_padding));
end_y = inv_y+(v_cells*(cell_size+border_padding));
colour_background=c_black;
colour_border_fill=c_gray;draw_set_colour(colour_background);
draw_rectangle(inv_x,inv_y,end_x,end_y,false) //can substitute with draw_roundrect()
draw_set_colour(colour_border_fill);
var i;
//draw the vertical borders
for (i=0; i<=h_cells; i+=1)
{
draw_rectangle(inv_x+i*(cell_size+border_padding),inv_y,inv_x+i*(cell_size+border_padding)+border_padding,end_y+border_padding,false)
}
//draw the horizontal borders
for (i=0; i<=v_cells; i+=1)
{
draw_rectangle(inv_x,inv_y+i*(cell_size+border_padding),end_x+border_padding,inv_y+i*(cell_size+border_padding)+border_padding,false)
}
draw_set_colour(c_white);
Thank you, but I have actually made the inventory grid as a sprite, since the inventory is more detailed than in my diagram. What I was more looking for was how I would get the inventory to work code wise, if you could help with that. (Also 14x14 does work for each slot because its a pixel art game)
All help is appreciated. 
. Let's roll with Never Mind's idea about using scripts on top of a 2D array. This means the 2D array will store all of the information, but we interact with it only by calling scripts.YES this is exactly what I needed!!!Ok, that's great info. I promise not to give you any more useless code
We will have two arrays. One will be permanent and will reflect the current state of the entire inventory. The second will be temporary and will be generated from scripts. This temporary array will have filtered results that we draw to the screen. It changes when the filtering criteria (i.e. the tabs) change.
Judging from your post, we need scripts to
Anything I missed?
- insert new items into the inventory
- delete items out of the inventory
- Find items in the inventory and modify them
- Filter the list to only show categories/subcategories
- Order the list from most expensive to least expensive. (Essentially, this is numeric ordering based on the 'value' property of an item)
- Draw the items on screen to reflect what is actually in your inventory
- Handle mouse clicks to tell you which item you have selected in the inventory
Now, the scripts themselves just reside in the sidebar of GM. Where do you want the scripts to be called from? Do you have an inventory object where we can handle these operations (and call the code)? I want to make sure you're cool with this before I start writing any code.
global.inventory=0; //initialize the arrayis_array(global.inventory);///inventory_insert(item_id,name,value,description,etc..)
//Create as many parameters as you need properties for a single item.
//now the code. First check if we have an inventory.
var new_index; //Where in the inventory we will put the new item
if is_array(global.inventory)
{
//we already have an array, so just add onto the end
new_index = array_height_2d(global.inventory); //the end
}
else
{
//No array yet. We must assign the first index;
new_index = 0;
}
for (var i=0; i<argument_count; i+=1)
{
global.inventory[new_index,i]=argument[i]; //A fast way to copy all values from the parameters directly into the inventory
}
return new_index; //Not necessary, but it might be helpful to know the index of where it was put in the future.Okay you're awesome. What would the "item ID" look like? Is it numbers or a string like "magic sword"?
Ok so I would probably just leave it as the name of the item then.
^That works as long as you can't pick up more than one of each item. If you did set them up with some kind of identifier, then you could pick up two "daggers" that have their own individual levels of sharpness and make them wear down with use, or any other unique attributes you want.
After you've done that I think you'll have a much better foundation to jump into making an inventory to fit your needs. It should answer a lot of your questions.
So if they had an identifier that was a number, some items like potions could stack? And that would let there be a legendary sword or something that couldn't stack?^That works as long as you can't pick up more than one of each item. If you did set them up with some kind of identifier, then you could pick up two "daggers" that have their own individual levels of sharpness that wear down with use, or any other unique attributes.
I think the main problem your running into is transitioning between data and the graphical interface. You should honestly start a side experiment project (or three) where you can mess around visually presenting / drawing data that you've put into arrays, grids, or lists.
The first thing I would do:
That is the very first basic step to drawing an inventory. Draw a list of names!..
- hard code a list of string names
- in a Draw Event try to loop through the list and draw out all the names somewhere onto the screen.
- test adding a new name to the list and make sure it gets drawn automatically
Once you have that going you can experiment with something like:
After you've done that I think you'll have a much better foundation to jump into making an inventory fit for your needs. I think it will answer a lot of your questions.
If Fishman1175 offers to walk you through setting yours up you should be very grateful. That sort of thing can't really be expected for this scope of project.
@Fishman1175 Hey sorry to bug you but it's my first time seeing you around.. I was just curious if you happen to have any games or tutorials you've made that I can check out! You seem to be great at helping people and have a strong work drive. I bet anything your working on is cool
No problemExactly.
If you have a unique tag on each item you can control whether each thing is a collect-able, rechargeable , replenishing, adding, stacking, poisoning, reforging, character... Haha
Thanks for liking my posts by the way!
. Is the ID unique for that item type... or for that actual specific item that you acquired, so just say the first health potion u pick up is different to the next one you pick up?With the mouse clicks, are they within separate objects or just one script that is only called once?
cell_size=14;
w_cells=7;
h_cells=5;
inventory_x = 32; //This needs to be the top left corner of your inventory sprite. The idea is to create boxes that align with where the inventory sprite is
inventory_y = 32;
for (var i=0; i<h_cells; i+=1) //control the row
{
for (var u=0; u<w_cells; u+=1) //control the column
{
var new_instance;
new_instance=instance_create(inventory_x + (u*cell_size),inventory_y + (i*cell_size),obj_inventory_click_placeholder);
new_instance.cell_number=(i*w_cells)+u; //The created box gets a number. This is what inventory slot the box represents.
}
}inventory_x = obj_inventory.x //I'm just making this up, replace with the actual co-ordinates of the top left of your inventory sprite
inventory_y = obj_inventory.y
cell_size=14;
w_cells=7;
h_cells=5;
//'div' keyword is very important here. It is integer division
vertical_number=(((mouse_y-inventory_y) div cell_size) * w_cells);
if vertical_number < 0 then return -1; //They clicked outside the inventory. Use -1 to indicate invalid selection.
if vertical_number >= h_cells*w_cells then return -1;
horizontal_number=((mouse_x-inventory_x) div cell_size);
if horizontal_number < 0 then return -1; //again, out of bounds selection
if horizontal_number >= w_cells then return -1;
box_clicked=vertical_number + horizontal_number;
return box_clicked;
//box clicked is the index in the inventory array we are looking for
Thank you again so much! How do I draw the items in each box?
I think Never Mind is right about the trouble with transitioning from data to GUI (graphical user interface).
for(var i=0; i<array_height_2d(global.inventory); i+=1)
{
//use the variable 'i' as the index in global.inventory to retrieve one item at a time. Remember, it's a 2D array so you have to provide another number for the property of the item you want to retrieve
}ds_map_find_value(global.inventory_map, global.inventory[clicked_index,0]) //instead of 0, use the index where item IDs are stored.Okay. I'm using your mouse co-ordinates option rather than the objects, to save space and time.
Could you give an example please? Thank you.
Maybe two items that when you change their category in code, will change their category in the inventory. (I know this is a big ask, but I am willing to add you to the credits of the game).
//change the first item's category. Based on your insert script, I'm guessing that index 2 is the category index.
global.inventory[0,2]="staff";Yeah I think that's what I meant. So the "sword" items only appear in the inventory grid, if it's that item type selected. If you could make an example of that I think I should be set. One other thing though, how do I make it so I can equip the items? Because I have the left/right hands that you can equip to but I'm pretty sure currently the code only shows the array. Also I am still a bit stuck in the transition from the code to the graphics. Thanks and happy new year to you too.No need for credit
Now, I'm still not 100% what you want an example of. "Change their category in code" to me means something like:
And then "will change their category in the inventory" is the part I don't quite understand. The inventory is the array that was changed (right above this line). Perhaps you want it so that depending on what tab you click, the graphical representation of the inventory changes?Code://change the first item's category. Based on your insert script, I'm guessing that index 2 is the category index. global.inventory[0,2]="staff";
If you can provide more detail about what you would like to happen, i'll get back to you.
P.S.
Happy New Year! Don't give up!
///filter_inventory_by_category(category)
var filter_text=argument0; //pass in what you want to filter
var filtered_inventory=0; //initialize our filtered inventory. Note that this is a script local array.
//That means that as soon as this script ends, filtered_inventory no longer exists.
for (var i=0; i<array_height_2d(global.inventory_array); i+=1)
{
if (global.inventory_array[i,2] == string(filter_text)) //matching
{
//determine the next open index in filtered_inventory
var next_index;
if is_array(filtered_inventory)
{
next_index=array_height_2d(filtered_inventory);
}
else
{
next_index=0;
}
//copy all parts of the item that matched (at the i index) into filtered_inventory
for (var u=0; u<array_length_2d(global.inventory_array,i); u+=1)
{
filtered_inventory[next_index,u]=global.inventory_array[i,u]
}
}
}
//at the end, return our filtered array
return filtered_inventory;my_filtered_inventory=filter_inventory_by_category("sword");for(var i=0; i<array_height_2d(global.inventory_array); i+=1)
{
draw_sprite(global.inventory_array[i,4],0,view_xview+10,view_yview+i*16)
}
//Where [i,4] is the sprite nameIt works!! Thank you so much!!! Just two more things though, how do I make the items get drawn horizontal and then when it gets to the end, it goes down to the next line using the for loop? And how do I remove items and make some items stack (like items such as potions are in the same slot and have a number indicator)?
Ok thanks and how do I find the index of the item and remove it.
How would I make it so I can equip items by dragging them, such as helmets into a head slot, pants into a leg slot, and any item except armour into a left and right hand slot? (Where the items in the slots can be read and the current item/stats will adjust accordingly).