 |
Cheat Engine
The Official Site of Cheat Engine
|
| View previous topic :: View next topic |
| Author |
Message |
Reclaimer Shawn
Advanced Cheater
![]() Reputation: 0
Joined: 09 Jun 2015
Posts: 77
|
 Posted: Sat Aug 27, 2016 12:19 pm Post subject: How do I make a better Random Number Generator? |
 |
|
Hello guys. So, a trainer I'm making checks the OS time and then based on that writes a random value to several addresses. The only problem is is the random values generated for each are all the same. I did some reading, and it's because Lua doesn't measure OS time in milliseconds, only seconds. This is my code as of right now:
| Code: |
math.randomseed( os.time() )
if (intatk1Byte1 == 0) then
intatk1Byte2 = math.random(1, 255)
else
intatk1Byte2 = math.random(0, 117)
end
if (intatk2Byte1 == 0) then
intatk2Byte2 = math.random(1, 255)
else
intatk2Byte2 = math.random(0, 117)
end
if (intatk3Byte1 == 0) then
intatk3Byte2 = math.random(1, 255)
else
intatk3Byte2 = math.random(0, 117)
end
if (intatk4Byte1 == 0) then
intatk4Byte2 = math.random(1, 255)
else
intatk4Byte2 = math.random(0, 117)
end
|
Is there any way I could wait a second between generating the random numbers above so I get a different result? Or better yet, get OS.time to interpret milliseconds so it can do the work within milliseconds(as I need to constantly write these random values to said addresses) Thanks in advanced![/code]
|
|
| Back to top |
|
 |
Zanzer
I post too much
![]() Reputation: 126
Joined: 09 Jun 2013
Posts: 3278
|
| Posted: Sat Aug 27, 2016 12:38 pm Post subject: |
 |
|
| Code: | myvar = myvar and myvar < 1000 and myvar or 0
math.randomseed( os.time() * 1000 + myvar )
myvar = myvar + 1 |
|
|
| Back to top |
|
|
Reclaimer Shawn
Advanced Cheater
![]() Reputation: 0
Joined: 09 Jun 2015
Posts: 77
|
| Posted: Sat Aug 27, 2016 1:42 pm Post subject: |
|
|
| Zanzer wrote: | | Code: | myvar = myvar and myvar < 1000 and myvar or 0
math.randomseed( os.time() * 1000 + myvar )
myvar = myvar + 1 |
|
This is how I included your code:
| Code: |
function random()
math.randomseed( os.time() )
inta = readInteger("8049901C")
intspeciesByte1 = math.random(0, 1)
intspeciesByte2 = 0
intatk1Byte1 = math.random(0, 1)
intatk1Byte2 = 1
intatk2Byte1 = math.random(0, 1)
intatk2Byte2 = 2
intatk3Byte1 = math.random(0, 1)
intatk3Byte2 = 3
intatk4Byte1 = math.random(0, 1)
intatk4Byte2 = 4
if (intspeciesByte1 == 0) then
intspeciesByte2 = math.random(1, 251)
else
intspeciesByte2 = math.random(21, 155)
end
if (intatk1Byte1 == 0) then
myvar = myvar and myvar < 1000 and myvar or 0
math.randomseed( os.time() * 1000 + myvar )
myvar = myvar + 1
intatk1Byte2 = math.random(1, 255)
else
myvar = myvar and myvar < 1000 and myvar or 0
math.randomseed( os.time() * 1000 + myvar )
myvar = myvar + 1
intatk1Byte2 = math.random(0, 117)
end
if (intatk2Byte1 == 0) then
myvar = myvar and myvar < 1000 and myvar or 0
math.randomseed( os.time() * 1000 + myvar )
myvar = myvar + 1
intatk2Byte2 = math.random(1, 255)
else
myvar = myvar and myvar < 1000 and myvar or 0
math.randomseed( os.time() * 1000 + myvar )
myvar = myvar + 1
intatk2Byte2 = math.random(0, 117)
end
if (intatk3Byte1 == 0) then
myvar = myvar and myvar < 1000 and myvar or 0
math.randomseed( os.time() * 1000 + myvar )
myvar = myvar + 1
intatk3Byte2 = math.random(1, 255)
else
myvar = myvar and myvar < 1000 and myvar or 0
math.randomseed( os.time() * 1000 + myvar )
myvar = myvar + 1
intatk3Byte2 = math.random(0, 117)
end
if (intatk4Byte1 == 0) then
myvar = myvar and myvar < 1000 and myvar or 0
math.randomseed( os.time() * 1000 + myvar )
myvar = myvar + 1
intatk4Byte2 = math.random(1, 255)
else
myvar = myvar and myvar < 1000 and myvar or 0
math.randomseed( os.time() * 1000 + myvar )
myvar = myvar + 1
intatk4Byte2 = math.random(0, 117)
end
|
I feel I didn't know how to use the code you provided as the values of said code are either always the same or 1 number bigger. The code looks simple enough, but could you provide me with an example on how to use it? Sorry for all of the trouble, just not used to generating random numbers within CE.
|
|
| Back to top |
|
|
panraven
Grandmaster Cheater
![]() Reputation: 55
Joined: 01 Oct 2008
Posts: 942
|
| Posted: Sat Aug 27, 2016 2:54 pm Post subject: |
|
|
This a high resolution counter using windows api QueryPerformanceCounter, for ce 6.5+
| Code: | function qpc(calltype)
if not readIntegerLocal('_qpc') then
local ht = cheatEngineIs64Bit() and {'mov rcx,_qpc','ret'} or {'push _qpc','ret 04'}
autoAssemble(table.concat({
'globalalloc(_qpc,$100)',
'_qpc+20:',
ht[1],
'call QueryPerformanceCounter',
ht[2],
'_qpc+80:',
ht[1],
'call QueryPerformanceFrequency',
ht[2]
},'\n'),true)
end
local call = type(calltype)=='string' and calltype:lower():sub(1,1)=='f' and '_qpc+80' or '_qpc+20'
if executeCodeLocal(call) ~= 0 then
return readQwordLocal('_qpc')
end
end
|
It return the cpu Ticks since os up.
qpc('f') to get the QueryPerformanceFrequency, ticks per second, which can be used to convert the ticks to seconds.
Hopefully, replacing os.time() with qpc() should serve the purpose.
bye~
_________________
- Retarded. |
|
| Back to top |
|
|
kuntz
Cheater
![]() Reputation: 0
Joined: 29 Aug 2016
Posts: 44
Location: Canada
|
| Posted: Tue Aug 30, 2016 5:00 pm Post subject: |
|
|
What is the over-all goal of the code you are trying to produce? There is probably a very easy solution!
- How often is this code called? Once per frame? Once per second?
- Are you able to save a single variable between script-executions to hold the seed?
- Is the reason you are using time to seed the PRNG because you cannot store a value? (That is the only reason to do this)
|
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
|
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
