I have the following code... How would I be able to insert values in the array list with different indexes while its looping inside of a while loop? from the 2nd function(HashMine(CarID1))
local function HistoryHash() -- This function is to print out the Hashes "Mined" using Hash.Lib
for Hashindex = 1, #HashHistory do
print("Hash "..Hashindex..":", HashHistory[Hashindex])
end
end
--Mines the BTC pending transaction
local function HashMine(CarID1)
while stringtohash:sub(1,2) ~= "00" do
STRINGTOHASH = stringtohash..HASHNUMBER
stringtohash = HASHLIBRARY.sha256(STRINGTOHASH)
HASHNUMBER = HASHNUMBER + 1
wait(1)
table.insert()
end
HashGUI.Text = stringtohash
PendingTextGui.Text = ""
local CarID1 = CarBought
if CarID1 == 1 then
ConfirmedText.Text = ("Car1 ".. game.Workspace.Cars.Car1Buy.Car1.Value .. "BTC To Malta Car Dealer from " .. Players:GetChildren()[1].Name)
AfterCarPurchase()
elseif CarID1 == 2 then
ConfirmedText.Text = ("Car2 ".. game.Workspace.Cars.Car2Buy.Car2.Value.. "BTC To Malta Car Dealer from " .. Players:GetChildren()[1].Name)
AfterCarPurchase()
elseif CarID1 == 3 then
ConfirmedText.Text = ("Car3 ".. game.Workspace.Cars.Car3Buy.Car3.Value .. "BTC To Malta Car Dealer from " .. Players:GetChildren()[1].Name)
end
AfterCarPurchase()
end
table.insert() will cause the error message
bad argument #1 to 'insert' (table expected, got no value)
According to the Lua 5.4 Reference Manual - table.insert, it is mandatory to provide the table you want to insert to and the value you want to to insert into that table.
table.insert (list, [pos,] value)
Inserts element value at position pos in list, shifting up the
elements list[pos], list[pos+1], ยทยทยท, list[#list]. The default value
for pos is #list+1, so that a call table.insert(t,x) inserts x at the
end of the list t.
If you want to assign a value to a specific table index you need to use indexing assignmet t[key] = value
Related
How would I go about compiling values from a table using a string?
i.e.
NumberDef = {
[1] = 1,
[2] = 2,
[3] = 3
}
TextDef = {
["a"] = 1,
["b"] = 2,
["c"] = 3
}
If I was for example to request "1ABC3", how would I get it to output 1 1 2 3 3?
Greatly appreciate any response.
Try this:
s="1ABC3z9"
t=s:gsub(".",function (x)
local y=tonumber(x)
if y~=nil then
y=NumberDef[y]
else
y=TextDef[x:lower()]
end
return (y or x).." "
end)
print(t)
This may be simplified if you combine the two tables into one.
You can access values in a lua array like so:
TableName["IndexNameOrNumber"]
Using your example:
NumberDef = {
[1] = 1,
[2] = 2,
[3] = 3
}
TextDef = {
["a"] = 1,
["b"] = 2,
["c"] = 3
}
print(NumberDef[2])--Will print 2
print(TextDef["c"])--will print 3
If you wish to access all values of a Lua array you can loop through all values like so (similarly to a foreach in c#):
for i,v in next, TextDef do
print(i, v)
end
--Output:
--c 3
--a 1
--b 2
So to answer your request, you would request those values like so:
print(NumberDef[1], TextDef["a"], TextDef["b"], TextDef["c"], NumberDef[3])--Will print 1 1 2 3 3
One more point, if you're interested in concatenating lua string this can be accomplished like so:
string1 = string2 .. string3
Example:
local StringValue1 = "I"
local StringValue2 = "Love"
local StringValue3 = StringValue1 .. " " .. StringValue2 .. " Memes!"
print(StringValue3) -- Will print "I Love Memes!"
UPDATE
I whipped up a quick example code you could use to handle what you're looking for. This will go through the inputted string and check each of the two tables if the value you requested exists. If it does it will add it onto a string value and print at the end the final product.
local StringInput = "1abc3" -- Your request to find
local CombineString = "" --To combine the request
NumberDef = {
[1] = 1,
[2] = 2,
[3] = 3
}
TextDef = {
["a"] = 1,
["b"] = 2,
["c"] = 3
}
for i=1, #StringInput do --Foreach character in the string inputted do this
local CurrentCharacter = StringInput:sub(i,i); --get the current character from the loop position
local Num = tonumber(CurrentCharacter)--If possible convert to number
if TextDef[CurrentCharacter] then--if it exists in text def array then combine it
CombineString = CombineString .. TextDef[CurrentCharacter]
end
if NumberDef[Num] then --if it exists in number def array then combine it
CombineString = CombineString .. NumberDef[Num]
end
end
print("Combined: ", CombineString) --print the final product.
I start with an empty array, and a Hash of key, values.
I would like to iterate over the Hash and compare it against the empty array. If the value for each k,v pair doesn't already exist in the array, I would like to create an object with that value and then access an object method to append the key to an array inside the object.
This is my code
class Test
def initialize(name)
#name = name
#values = []
end
attr_accessor :name
def values=(value)
#values << value
end
def add(value)
#values.push(value)
end
end
l = []
n = {'server_1': 'cluster_x', 'server_2': 'cluster_y', 'server_3': 'cluster_z', 'server_4': 'cluster_x', 'server_5': 'cluster_y'}
n.each do |key, value|
l.any? do |a|
if a.name == value
a.add(key)
else
t = Test.new(value)
t.add(key)
l << t
end
end
end
p l
I would expect to see this:
[
#<Test:0x007ff8d10cd3a8 #name=:cluster_x, #values=["server_1, server_4"]>,
#<Test:0x007ff8d10cd2e0 #name=:cluster_y, #values=["server_2, server_5"]>,
#<Test:0x007ff8d10cd1f0 #name=:cluster_z, #values=["server_3"]>
]
Instead I just get an empty array.
I think that the condition if a.name == value is not being met and then the add method isn't being called.
#Cyzanfar gave me a clue as to what to look for, and I found the answer here
https://stackoverflow.com/a/34904864/5006720
n.each do |key, value|
found = l.detect {|e| e.name == value}
if found
found.add(key)
else
t = Test.new(value)
t.add(key)
l << t
end
end
#ARL you're almost there! The last thing you need to consider is when found actually returns an object since detect will find a matching one at some point.
n.each do |key, value|
found = l.detect {|e| e.name == value}
if found
found.add(key)
else
t = Test.new(value)
t.add(key)
l << t
end
end
You actually only want to add a new instance of Test when found return nil. This code should yield your desired output:
[
#<Test:0x007ff8d10cd3a8 #name=:cluster_x, #values=["server_1, server_4"]>,
#<Test:0x007ff8d10cd2e0 #name=:cluster_y, #values=["server_2, server_5"]>,
#<Test:0x007ff8d10cd1f0 #name=:cluster_z, #values=["server_3"]>
]
I observe two things in your code :
def values=(value)
#values << value
def add(value)
#values.push(value)
two methods do the same thing, pushing a value, as << is a kind of syntactic sugar meaning push
you have changed the meaning of values=, which is usually reserved for a setter method, equivalent to attire_writer :values.
Just to illustrate that there are many ways to do things in Ruby, I propose the following :
class Test
def initialize(name, value)
#name = name
#values = [value]
end
def add(value)
#values << value
end
end
h_cluster = {} # intermediate hash whose key is the cluster name
n = {'server_1': 'cluster_x', 'server_2': 'cluster_y', 'server_3': 'cluster_z',
'server_4': 'cluster_x', 'server_5': 'cluster_y'}
n.each do | server, cluster |
puts "server=#{server}, cluster=#{cluster}"
cluster_found = h_cluster[cluster] # does the key exist ? => nil or Test
# instance with servers list
puts "cluster_found=#{cluster_found.inspect}"
if cluster_found
then # add server to existing cluster
cluster_found.add(server)
else # create a new cluster
h_cluster[cluster] = Test.new(cluster, server)
end
end
p h_cluster.collect { | cluster, servers | servers }
Execution :
$ ruby -w t.rb
server=server_1, cluster=cluster_x
cluster_found=nil
server=server_2, cluster=cluster_y
cluster_found=nil
server=server_3, cluster=cluster_z
cluster_found=nil
server=server_4, cluster=cluster_x
cluster_found=#<Test:0x007fa7a619ae10 #name="cluster_x", #values=[:server_1]>
server=server_5, cluster=cluster_y
cluster_found=#<Test:0x007fa7a619ac58 #name="cluster_y", #values=[:server_2]>
[#<Test:0x007fa7a619ae10 #name="cluster_x", #values=[:server_1, :server_4]>,
#<Test:0x007fa7a619ac58 #name="cluster_y", #values=[:server_2, :server_5]>,
#<Test:0x007fa7a619aac8 #name="cluster_z", #values=[:server_3]>]
I have a list of xy points that I'm trying to sum together and identify the centroid, but it only uses the last value in the row. I'm trying to create a centroid for each state, Here's the code:
Total_X1 = 0
Total_Y1 = 0
TotalPop1 = 0
#Cat = "cali"
cntyName1 = "cnty"
stateName1 = "statename"
for row in cursor:
#if row[0] >= : ### for condition that is met
#if row[0]== []:
TheStateName1 = row[0]
thecntyName1 = row[4]
idpoly1 = row[5]
idobject1 = row[6]
stateFIPS1 = row[7]
countyFIPS1 = row[8]
fips1 = row[9]
fipSnum1 = row[10]
fipsNumer1 = row[11]
#totarea = row[12]
XPoint = row [13]
YPoint = row[14]
#print Cat
print TheStateName1
print thecntyName1
print row ### do something with that value!
Total_X1 += row[2] *row[3]
print Total_X1
Total_Y1 += row[1] *row[3]
print Total_Y1
TotalPop1 += row[3]
print TotalPop1
print ""
print "X is: " , Total_X1
print "POP is: " , TotalPop1
centroid_X1 = Total_X1/TotalPop1
print "your x centroid is: ",centroid_X1
print ""
#print Cat
print thecntyName1
print TheStateName1
Any Suggestions, Thanks!
The cursor can only 'see' one row at a time, you have to pull info from that row and store it elsewhere.
loc_list = [(row[0], row[1]) for row in arcpy.da.SearchCursor(dataset, ['X_coord', 'Y_coord'])
Will give you a list of X,Y tuples from your attribute table.
After that you've got multiple options for turning that list of tuples into a spatial dataset before calculating the mean - start by reading the ESRI documentation for arcpy.Point and all the related topics linked, and go from there. If you have 10.3 or above you can use Mean Center once you have a point layer.
You'll probably get a wrong answer if you just take the mean of the X and Y without projecting first, so don't.
I should create a search page in which i have to save in an Array all the results of the searching. I had two problems:
1) I used the following statement:
Company.joins(:references).where(sql_string)
that returns an ActiveRecord:Relation and it's not good for me cause i have to display these results in the index action , in which i use an each statement. So , to overcame this problem i used the to_a.
I checked the .class of my variable and with the to_a it passed from ActiveRecord:Relation to Array. So , it seems that this solve the problem.
Company.joins(:references).where(sql_string).to_a
2) Now, i have to pass this variable (Array) into my index action.
I executed the search in the action called search:
def search
...
#companies = Company.joins(:references).where(sql_string).to_a
end
Now, i want to pass this to index:
def index
#companies ||= Company.all
end
I used #companies ||= Company.all cause i think that the #companies is and istance variable and it should be available in all the actions of the class. Isn't it? By the way, it doesn't workl. I mean , the results are not shared through the two methods.
Also , in the search action i don't know how to call index action. I used the redirect_to but this bring me to another problem.
def search
...
#companies = Company.joins(:references).where(sql_string).to_a
redirect_to companies_index_path
end
The second time i call the search action it brings me into the index action.As i insered the searching value. At really he still had the past searching in memory, and i don't want this behavior.
So , in other words, i want to:
passing #companies searching result to index action.
avoid the loop between search-index. So in every new request resets
the old searching.
i want to know if it's correct the casting with the to_a to bring
an ActiveRecord:Relation to Array.
Thank You.
EDIT:
def search
stringa_sql = ""
ragione_sociale = ""
riferimento = ""
note = ""
min_date = ""
max_date = ""
company_type = ""
sector = ""
country = ""
certification = ""
contact = ""
state = ""
manage = ""
consultation = ""
formation = ""
software = ""
if params[:ragione_sociale]
ragione_sociale = params[:ragione_sociale]
stringa_sql = "ragione_sociale like "+"'%"+ragione_sociale+"%'"
end
if params[:riferimento]
riferimento = params[:riferimento]
stringa_sql += " AND nome like "+"'%"+riferimento+"%'"
end
if params[:note]
note = params[:note]
stringa_sql += " AND note like "+"'%"+note+"%'"
end
if params[:min_date] && params[:min_date]!= ""
if params[:max_date] && params[:max_date]!= ""
min_date = params[:min_date]
max_date = params[:max_date]
stringa_sql += " AND richiamare >="+min_date+" AND richiamare <="+max_date
end
end
if params[:company_type] #se inviamo la richesta senza scrivere params[:category] viene passato vuoto
if params[:company_type][:id] != ""
company_type = params[:company_type][:id]
stringa_sql += " AND id_forma_giuridica = "+company_type
end
end
if params[:sector]
if params[:sector][:id] != ""
sector = params[:sector][:id]
stringa_sql += " AND id_settore = "+sector
end
end
if params[:country]
if params[:country][:id] != ""
country = params[:country][:id]
stringa_sql += " AND id_provincia = "+country
end
end
if params[:certification]
if params[:certification][:id] != ""
certification = params[:certification][:id]
stringa_sql += " AND id_certificazione = "+certification
end
end
if params[:contact]
if params[:contact][:id] != ""
contact = params[:contact][:id]
stringa_sql += " AND id_contattato = "+contact
end
end
if params[:state]
if params[:state][:id] != ""
state = params[:state][:id]
stringa_sql += " AND id_stato = "+state
end
end
if params[:manage]
if params[:manage][:id] != ""
manage = params[:manage][:id]
stringa_sql += " AND id_gestito = "+manage
end
end
if params[:consultation]
if params[:consultation][:id] != ""
consultation = params[:consultation][:id]
stringa_sql += " AND id_consulenza = "+consultation
end
end
if params[:formation]
if params[:formation][:id] != ""
formation = params[:formation][:id]
#formazione DA METTERE
end
end
if params[:software]
if params[:software][:id] != ""
software = params[:software][:id]
stringa_sql += " AND id_software = "+software
end
end
#companies = Company.search(stringa_sql).to_a
if not #companies.empty?
redirect_to companies_index_path
end
end
index:
def index
#companies ||= Company.all
end
I used #companies ||= Company.all cause i think that the #companies
is and istance variable and it should be available in all the actions
of the class. Isn't it?
Not really, it depends on from where you want to access the #companies instance variable. e.g. from which view, you need #companies instance variable in the corresponding action method of the controller.
The second time i call the search action it brings me into the index
action
You are using redirect_to companies_index_path in your search method which brings you to the index action.
To implement search in your application, you can follow this somewhat standard process:
In your application_controller.rb which will have the #search_query.
# Returns string
def search_query
#search_query ||= params[:query] || params[:search]
end
Then, in your searches_controller.rb, you can have:
def search
# in the method build your search results based on
# search_query param
#search_results = Company.joins(:references).where(sql_string(search_query)).to_a
end
In your routes.rb, you can have:
get '/search(/:query)' => 'searches#search', query: /.+/, as: 'search'
Which will take you to the searches_controller's search action where you are building the search results #search_results.
Finally, you need to have a app/views/searches/search.html.erb view file where you have access to your #search_results instance variable and you can just loop through them and display them in this view.
Answers to your last 3 questions:
passing #companies searching result to index action.
avoid the loop between search-index. So in every new request resets
the old searching.
You can overcome these problems by following the request/response flow that I have mentioned above. You should not share your index view with your search and you should not have any loop between search and index. Both of them are separate actions of the controller and can be handled separately as I showed above.
i want to know if it's correct the casting with the to_a to bring an
ActiveRecord:Relation to Array.
You can do that if you want. But, you don't really need it in this use case. You can store the ActiveRecord:Relation in your search_results and when you access this instance variable from inside your search.html.erb view, you can easily loop through using a .each do block. So, you don't have to worry about ActiveRecord:Relation and Array.
I will try to as concise as possible with my issue.
Firstly, files are:
block.lua
base.lua
main.lua
In block.lua I create a block, add collision detection and a cleanup code.
In base.lua I create a base made up of 4 columns and 10 rows. 40 blocks in total.
In main.lua I create 4 bases made from the base.class.
All is working fine once the game begins.
I remove the bases and call them again on level 2.
They create themselves ok BUT
when the enemy is destroyed once again, and the bases are to be rebuilt, I get an:
array index 1 is beyond array bounds:1..1
-- all the way up to--
array index 800 is beyond array bounds:1..159
it will then create the bases and continue until the enemys are destroyed and do the same again starting at :
array index 800 is beyond array bounds:1..159
-- all the way up to--
array index 4000 is beyond array bounds:1..159
The terminal points me at block.lua line 23
blockGroup:insert(blockNum,self.block)
Now I cant see anything wrong in the class, I have looked and googled for hours but all to no avail.
I would really appreciate a helping hand to guide me here please.
I have tried rewriting the "cleanup" etc but no joy.
I left a few commented out bits in there and removed some of the irrelevant stuff.
I post below the relevant code:
--MAIN.LUA--
function gameOver()
Runtime:removeEventListener("enterFrame", onEnterFrame)
Runtime:removeEventListener("enterFrame", movePlayer)
layers:removeSelf()
layers = nil
enemyCount = 0
for i = 1,#allEnemys do
timer.cancel(allEnemys[i].clock)
Runtime:removeEventListener( "enterFrame", allEnemys[i] )
display.remove(allEnemys[i].image)
allEnemys[i].image=nil
end
allEnemys=nil
cleanupBlocks()
end
----------------------------------------------------------------------
-- LEVEL UP --
----------------------------------------------------------------------
function levelUp(level)
enemyCount = 0
local enemys = require("modules.enemy")
if allEnemys ~= nil then
for i = 1,#allEnemys do
timer.cancel(allEnemys[i].clock)
Runtime:removeEventListener( "enterFrame", allEnemys[i] )
display.remove(allEnemys[i].image)
allEnemys[i].image=nil
end
end
allEnemys=nil
cleanupBlocks()
levels()
end
----------------------------------------------------------------------
-- LEVELS --
----------------------------------------------------------------------
function levels(level)
function createInvader(x, y, row)
for j = 1, 2 do
for i = 1, 2 do
if allEnemys == nil then
allEnemys = {}
else
enemysCount=#allEnemys
end
allEnemys[#allEnemys + 1] = enemys:new()
allEnemys[#allEnemys ]:init(i * 60, j * 70 + 70,j)
allEnemys[#allEnemys ]:start()
end
end
end
createInvader()
--[[function createBases1()
local base = require("modules.base")
for i = 1, 4 do
base:new()
base:init(i * 180 - 130, 850)
end
end ]]--
createBases()
end
--BLOCK.LUA--
local block = {}
local block_mt = { __index = block}
local scene = scene
local blockGroup = display.newGroup()
local blockNum = 0
function block:new() -- constructor
local group = {}
return setmetatable( group, block_mt )
end
function block:init(xloc,yloc) --initializer
-- Create attributes
self.block = display.newRect( xloc,yloc,10,10)
self.block:setFillColor ( 2, 255, 14 )
blockNum = blockNum + 1
blockGroup:insert(blockNum,self.block)
local blockCollisionFilter = { categoryBits = 128, maskBits = 387}
physics.addBody( self.block, "static", {filter = blockCollisionFilter})
self.count = 1
end
function cleanupBlocks()
--[[ print(blockNum, blockGroup.numChildren)
for i=1,blockGroup.numChildren do
blockGroup[1]:removeSelf()
blockGroup[1] = nil
end ]]--
print(blockNum, blockGroup.numChildren)
while blockGroup.numChildren>0 do
display.remove(blockGroup[1])
blockGroup[1]=nil
end
end
function block:start()
--- Create Listeneres
self.block:addEventListener( "collision", self )
scene:addEventListener('base_block_event', self)
end
return block
--BASE.LUA--
local base = {}
local base_mt = { __index = base}
local scene = scene
local block = require("modules.block")
function base:new() -- constructor
local group = {}
return setmetatable( group, base_mt )
end
function base:init(xloc, yloc) --initializer
-- Create attributes
local base
for j = 1, 4 do
for i = 1, 10 do
base = block:new()
base:init(xloc+i * 10,yloc+j * 10)
base:start()
end
end
end
return base
I see you use
blockNum = blockNum + 1
blockGroup:insert(blockNum,self.block)
Try to use
blockGroup:insert(self.block)
just to see if you still get that error.