Inventory system 
2 comments Ladies and Gentlemen, I would like to present you my inventory system.
Spoiler 

Code:
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function init_array(length,mode)
local array={}
for i=1,length do
array[i]=mode end
return array
end
function table.copy(t, lookup_table)
if (t == nil) then return nil end
local copy = {}
setmetatable(copy, getmetatable(t))
for i,v in pairs(t) do
if type(v) ~= "table" then
copy[i] = v
else
lookup_table = lookup_table or {}
lookup_table[t] = copy
if lookup_table[v] then
copy[i] = lookup_table[v]
else
copy[i] = table.copy(v, lookup_table)
end
end
end
return copy
end
_menu=menu
menu={}
menu.data={
["@main_menu"]={
title="Menu Principal";
button={
{name="Inventário",func="menu.inv_show(v_me)"};
{name="Loja",target="@shop"};
}
};
["@shop"]={
title="Loja@b";
button={
{name="Menu Principal";caption="Voltar";target="@main_menu"};
}
};
["@buy"]={
title="Deseja comprar esse item?";
button={
{name="Loja";caption="Voltar";target="@shop"};
{name="Comprar";func="menu.inv_buy(v_me,USER[v_me].sel)"};
{name="Ver descrição",func="menu.inv_shopdesc(v_me,USER[v_me].sel)"};
}
};
["@equip"]={
title="Test";
button={
{name="Menu Principal",caption="Voltar",target="@main_menu"};
{name="Usar",func="menu.inv_use(v_me,USER[v_me].sel)"};
{name="Vender",func="menu.inv_sell(v_me,USER[v_me].sel)"};
{name="Ver descrição",func="menu.inv_desc(v_me,USER[v_me].sel)"};
{name="Jogar fora",func="menu.inv_remove(v_me,USER[v_me].sel)"};
}
};
}
menu.itemdata={
{name="Poção de HP [250]",price=120,desc="Esta poção recupera totalmente sua saude.",func="heal_p(v_me,250)"};
{name="Poção de HP [100]",price=50,desc="Esta poção recupera sua saude.",func="heal_p(v_me,100)"};
{name="Poção de HP [50]",price=30,desc="Esta poção recupera um pouco sua saude.",func="heal_p(v_me,50)"};
{name="Poção de HP [20]",price=10,desc="Esta poção recupera um pouquinho sua saude.",func="heal_p(v_me,20)"};
}
for index,value in ipairs(menu.itemdata) do menu.data["@shop"].button[index+1]={name=menu.itemdata[index].name;caption=menu.itemdata[index].price.." créditos";func="USER[v_me].sel=(v_slot-1)";target="@buy"} end
USERDATA={
menu_page="";
menu_name="";
sel="";
inv={};
}
USER=init_array(32,USERDATA)
USER_ITEMS=init_array(32,{})
function menu.get(name,page,button)
local data={}
if type(name) == "table" then
data = name
else
data = menu.data[name]
end
local slot=7*(page-1)+button
local item=data.button[slot]
--print(item.name)
return item,slot
end
function menu.show(uid,name,page)
local menu_page = page or 1
local menu_name = name
local data = {}
if type(name) == "table" then
data = name
else
data = menu.data[name]
end
if data then
local title = data.title
local content = data.title
local button = data.button or {}
local length = math.ceil(#button/ 7)
if #button > 9 then
if menu_page < 1 then
menu_page = length
elseif menu_page > length then
menu_page = 1
end
for i = 7 * menu_page - 6, 7 * menu_page do
if button[i] then
content = content ..','..button[i].name
if button[i].caption then
content = content.."|"..button[i].caption
end
else
content = content ..','
end
end
if menu_page == length
then content = content ..',(Proximo)'
else content = content ..',>> Proximo >>|Pagina '..menu_page+1
end
if menu_page == 1
then content = content ..',(Anterior)'
else content = content ..',<< Anterior <<|Pagina '..menu_page-1
end
else
for slot,button in ipairs(button) do
content = content..","..button.name
if button.caption then
content = content.."|"..button.caption
end
end
end
USER[uid].menu_name = menu_name
USER[uid].menu_page = menu_page
_menu(uid,content)
end
end
addhook("menu","menu.hook")
function menu.hook(uid,title,button)
if button==0 then return end
local menu_name = USER[uid].menu_name
local menu_page = USER[uid].menu_page
local menu_button = 0
if type(menu_name) == "table" then
menu_button = #menu_name.button
else
menu_button = #menu.data[menu_name].button
end
if menu_button > 9 then
if button==9 then menu.show(uid,menu_name,menu_page-1) return end
if button==8 then menu.show(uid,menu_name,menu_page+1) return end
end
local item,slot=menu.get(menu_name,menu_page,button)
v_me=uid
v_slot=slot
if item.func then loadstring(item.func)() end
if item.target then
menu.show(uid,item.target)
end
end
addhook("serveraction","menu.input")
function menu.input(uid,action)
if action==3 then
menu.show(uid,"@main_menu")
end
end
function menu.inv_remove(uid,item_slot)
local items=table.copy(USER_ITEMS[uid])
for slot,item in ipairs(items) do
if item_slot == slot then
table.remove(items,slot)
USER_ITEMS[uid]=items
break
end
end
end
function menu.inv_buy(uid,item_id)
local item=menu.itemdata[item_id]
if player(uid,"money") >= item.price then
msg2(uid,"Você adquiriu "..item.name.."!")
menu.inv_add(uid,item_id)
parse("setmoney "..uid.." "..(player(uid,"money")-item.price))
else
msg2(uid,"Você não tem dinheiro suficiente para comprar "..item.name..".")
end
end
function menu.inv_shopdesc(uid,item_id)
local item=menu.itemdata[item_id]
msg2(uid,item.name..": "..item.desc)
end
function menu.inv_desc(uid,item_slot)
local item_id=USER_ITEMS[uid][item_slot]
local item=menu.itemdata[item_id]
msg2(uid,item.name..": "..item.desc)
end
function menu.inv_use(uid,item_slot)
local item_id=USER_ITEMS[uid][item_slot]
loadstring(menu.itemdata[item_id].func)()
menu.inv_remove(uid,item_slot)
end
function menu.inv_sell(uid,item_slot)
local item_id=USER_ITEMS[uid][item_slot]
local item=menu.itemdata[item_id]
parse("setmoney "..uid.." "..(player(uid,"money")+math.floor(item.price/2)))
msg2(uid,item.name.." vendido por "..item.price.." de cash.")
menu.inv_remove(uid,item_slot)
end
function menu.inv_add(uid,item_id)
local item_id=item_id or 1
local items=table.copy(USER_ITEMS[uid])
table.insert(items,item_id)
if #USER_ITEMS[uid] <= 14 then
USER_ITEMS[uid] = items
else
msg2(uid,"Desculpe, o seu inventório está cheio.")
end
end
function menu.inv_show(uid)
local data=USER_ITEMS[uid]
local newdata={title="Inventório";button={{name="Menu Principal",caption="Voltar",target="@main_menu"}}}
for slot,item_id in pairs(data) do
newdata.button[slot+1] = {name=(menu.itemdata[item_id].name),func="USER[v_me].sel=(v_slot-1)",target="@equip"}
end
menu.show(uid,newdata)
end
function menu.inv_addname(uid,_name)
for item_id,data in ipairs(menu.itemdata) do
if menu.itemdata[item_id].name:lower()==_name:lower() then
menu.inv_add(uid,item_id)
return
end
end
return error("Erro, esse item não existe.")
end
function heal_p(uid,amount)
parse("sethealth "..uid.." "..player(uid,"health")+amount)
msg2(uid,"Você foi curado em "..amount.." pontos")
end
local array={}
for i=1,length do
array[i]=mode end
return array
end
function table.copy(t, lookup_table)
if (t == nil) then return nil end
local copy = {}
setmetatable(copy, getmetatable(t))
for i,v in pairs(t) do
if type(v) ~= "table" then
copy[i] = v
else
lookup_table = lookup_table or {}
lookup_table[t] = copy
if lookup_table[v] then
copy[i] = lookup_table[v]
else
copy[i] = table.copy(v, lookup_table)
end
end
end
return copy
end
_menu=menu
menu={}
menu.data={
["@main_menu"]={
title="Menu Principal";
button={
{name="Inventário",func="menu.inv_show(v_me)"};
{name="Loja",target="@shop"};
}
};
["@shop"]={
title="Loja@b";
button={
{name="Menu Principal";caption="Voltar";target="@main_menu"};
}
};
["@buy"]={
title="Deseja comprar esse item?";
button={
{name="Loja";caption="Voltar";target="@shop"};
{name="Comprar";func="menu.inv_buy(v_me,USER[v_me].sel)"};
{name="Ver descrição",func="menu.inv_shopdesc(v_me,USER[v_me].sel)"};
}
};
["@equip"]={
title="Test";
button={
{name="Menu Principal",caption="Voltar",target="@main_menu"};
{name="Usar",func="menu.inv_use(v_me,USER[v_me].sel)"};
{name="Vender",func="menu.inv_sell(v_me,USER[v_me].sel)"};
{name="Ver descrição",func="menu.inv_desc(v_me,USER[v_me].sel)"};
{name="Jogar fora",func="menu.inv_remove(v_me,USER[v_me].sel)"};
}
};
}
menu.itemdata={
{name="Poção de HP [250]",price=120,desc="Esta poção recupera totalmente sua saude.",func="heal_p(v_me,250)"};
{name="Poção de HP [100]",price=50,desc="Esta poção recupera sua saude.",func="heal_p(v_me,100)"};
{name="Poção de HP [50]",price=30,desc="Esta poção recupera um pouco sua saude.",func="heal_p(v_me,50)"};
{name="Poção de HP [20]",price=10,desc="Esta poção recupera um pouquinho sua saude.",func="heal_p(v_me,20)"};
}
for index,value in ipairs(menu.itemdata) do menu.data["@shop"].button[index+1]={name=menu.itemdata[index].name;caption=menu.itemdata[index].price.." créditos";func="USER[v_me].sel=(v_slot-1)";target="@buy"} end
USERDATA={
menu_page="";
menu_name="";
sel="";
inv={};
}
USER=init_array(32,USERDATA)
USER_ITEMS=init_array(32,{})
function menu.get(name,page,button)
local data={}
if type(name) == "table" then
data = name
else
data = menu.data[name]
end
local slot=7*(page-1)+button
local item=data.button[slot]
--print(item.name)
return item,slot
end
function menu.show(uid,name,page)
local menu_page = page or 1
local menu_name = name
local data = {}
if type(name) == "table" then
data = name
else
data = menu.data[name]
end
if data then
local title = data.title
local content = data.title
local button = data.button or {}
local length = math.ceil(#button/ 7)
if #button > 9 then
if menu_page < 1 then
menu_page = length
elseif menu_page > length then
menu_page = 1
end
for i = 7 * menu_page - 6, 7 * menu_page do
if button[i] then
content = content ..','..button[i].name
if button[i].caption then
content = content.."|"..button[i].caption
end
else
content = content ..','
end
end
if menu_page == length
then content = content ..',(Proximo)'
else content = content ..',>> Proximo >>|Pagina '..menu_page+1
end
if menu_page == 1
then content = content ..',(Anterior)'
else content = content ..',<< Anterior <<|Pagina '..menu_page-1
end
else
for slot,button in ipairs(button) do
content = content..","..button.name
if button.caption then
content = content.."|"..button.caption
end
end
end
USER[uid].menu_name = menu_name
USER[uid].menu_page = menu_page
_menu(uid,content)
end
end
addhook("menu","menu.hook")
function menu.hook(uid,title,button)
if button==0 then return end
local menu_name = USER[uid].menu_name
local menu_page = USER[uid].menu_page
local menu_button = 0
if type(menu_name) == "table" then
menu_button = #menu_name.button
else
menu_button = #menu.data[menu_name].button
end
if menu_button > 9 then
if button==9 then menu.show(uid,menu_name,menu_page-1) return end
if button==8 then menu.show(uid,menu_name,menu_page+1) return end
end
local item,slot=menu.get(menu_name,menu_page,button)
v_me=uid
v_slot=slot
if item.func then loadstring(item.func)() end
if item.target then
menu.show(uid,item.target)
end
end
addhook("serveraction","menu.input")
function menu.input(uid,action)
if action==3 then
menu.show(uid,"@main_menu")
end
end
function menu.inv_remove(uid,item_slot)
local items=table.copy(USER_ITEMS[uid])
for slot,item in ipairs(items) do
if item_slot == slot then
table.remove(items,slot)
USER_ITEMS[uid]=items
break
end
end
end
function menu.inv_buy(uid,item_id)
local item=menu.itemdata[item_id]
if player(uid,"money") >= item.price then
msg2(uid,"Você adquiriu "..item.name.."!")
menu.inv_add(uid,item_id)
parse("setmoney "..uid.." "..(player(uid,"money")-item.price))
else
msg2(uid,"Você não tem dinheiro suficiente para comprar "..item.name..".")
end
end
function menu.inv_shopdesc(uid,item_id)
local item=menu.itemdata[item_id]
msg2(uid,item.name..": "..item.desc)
end
function menu.inv_desc(uid,item_slot)
local item_id=USER_ITEMS[uid][item_slot]
local item=menu.itemdata[item_id]
msg2(uid,item.name..": "..item.desc)
end
function menu.inv_use(uid,item_slot)
local item_id=USER_ITEMS[uid][item_slot]
loadstring(menu.itemdata[item_id].func)()
menu.inv_remove(uid,item_slot)
end
function menu.inv_sell(uid,item_slot)
local item_id=USER_ITEMS[uid][item_slot]
local item=menu.itemdata[item_id]
parse("setmoney "..uid.." "..(player(uid,"money")+math.floor(item.price/2)))
msg2(uid,item.name.." vendido por "..item.price.." de cash.")
menu.inv_remove(uid,item_slot)
end
function menu.inv_add(uid,item_id)
local item_id=item_id or 1
local items=table.copy(USER_ITEMS[uid])
table.insert(items,item_id)
if #USER_ITEMS[uid] <= 14 then
USER_ITEMS[uid] = items
else
msg2(uid,"Desculpe, o seu inventório está cheio.")
end
end
function menu.inv_show(uid)
local data=USER_ITEMS[uid]
local newdata={title="Inventório";button={{name="Menu Principal",caption="Voltar",target="@main_menu"}}}
for slot,item_id in pairs(data) do
newdata.button[slot+1] = {name=(menu.itemdata[item_id].name),func="USER[v_me].sel=(v_slot-1)",target="@equip"}
end
menu.show(uid,newdata)
end
function menu.inv_addname(uid,_name)
for item_id,data in ipairs(menu.itemdata) do
if menu.itemdata[item_id].name:lower()==_name:lower() then
menu.inv_add(uid,item_id)
return
end
end
return error("Erro, esse item não existe.")
end
function heal_p(uid,amount)
parse("sethealth "..uid.." "..player(uid,"health")+amount)
msg2(uid,"Você foi curado em "..amount.." pontos")
end
Spoiler 

See those lines:
This is where you are going to add information about itens.
price
The price of the item (enough said)
name
The name of the item (enough said too)
desc
The description of the item (too obvious)
func
The function that will be executed when you use that item. "v_me" is the global variable that represents your own ID. Inside the "", you write as if you were doing lua scripts normally. It is called string.load, you can check this function in the beginning of the script.
And some functions about items:
menu.inv_add(id,item_id)
Add an item to player by Item ID
menu.inv_addname(id,name)
Add an item to player by name
menu.inv_buy(id,item_id)
Buy an item to player by Item ID
menu.inv_remove(id,item_id)
Remove an item from player by Item ID
menu.inv_shopdesc(id,item_id)
Show a description of Item ID to player.
menu.inv_desc(id,item_slot)
Show a description of the slot inventory of the player.
menu.inv_use(id,item_slot)
Use an item from slot inventory of the player.
menu.inv_sell(id,item_slot)
Sells an item from slot inventory of the player for the half price it was bought.
menu.inv_show(id)
Show the player's inventory.
There is a very advanced menu function in the script too, if you guys want me to explain that, dont PM me. Just ask it here.
And I'm sorry if the script is in portuguese, I don't have interest in translating it.
Quote:
menu.itemdata={
{
name="Poção de HP [250]",
price=120,
desc="Esta poção recupera totalmente sua saude.",
func="heal_p(v_me,250)"
};
{
name="Poção de HP [100]",
price=50,
desc="Esta poção recupera sua saude.",
func="heal_p(v_me,100)"
};
{
name="Poção de HP [50]",
price=30,
desc="Esta poção recupera um pouco sua saude.",
func="heal_p(v_me,50)"
};
{
name="Poção de HP [20]",
price=10,
desc="Esta poção recupera um pouquinho sua saude.",
func="heal_p(v_me,20)"
};
}
{
name="Poção de HP [250]",
price=120,
desc="Esta poção recupera totalmente sua saude.",
func="heal_p(v_me,250)"
};
{
name="Poção de HP [100]",
price=50,
desc="Esta poção recupera sua saude.",
func="heal_p(v_me,100)"
};
{
name="Poção de HP [50]",
price=30,
desc="Esta poção recupera um pouco sua saude.",
func="heal_p(v_me,50)"
};
{
name="Poção de HP [20]",
price=10,
desc="Esta poção recupera um pouquinho sua saude.",
func="heal_p(v_me,20)"
};
}
This is where you are going to add information about itens.


The price of the item (enough said)


The name of the item (enough said too)


The description of the item (too obvious)


The function that will be executed when you use that item. "v_me" is the global variable that represents your own ID. Inside the "", you write as if you were doing lua scripts normally. It is called string.load, you can check this function in the beginning of the script.
And some functions about items:


Add an item to player by Item ID


Add an item to player by name


Buy an item to player by Item ID


Remove an item from player by Item ID


Show a description of Item ID to player.


Show a description of the slot inventory of the player.


Use an item from slot inventory of the player.


Sells an item from slot inventory of the player for the half price it was bought.


Show the player's inventory.
There is a very advanced menu function in the script too, if you guys want me to explain that, dont PM me. Just ask it here.
And I'm sorry if the script is in portuguese, I don't have interest in translating it.

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Agustindz23: As I said, i don't have interest in translating strings. That simply doesn't matter. You can perfectly understand the core functions without it.




