Snippets
Note:
Code posted here is considered Public Domain unless otherwise noted. Be aware of this before posting your code! You may release your code here only under the following licenses: Public Domain, BSD, GPL, or LGPL.
Random hash generator
random_hash(len)
random_hash()
Description:
Generates a random filled hash containing numbers and (capitol) letters. It will generate and return a hash that is 'len' characters long. If 'len' is not specified, then a 32 character hash will be assumed.
Purpose: Random hashes are, often, used in place of passwords. It is considered more secure than storing a reversible hash simply because it cannot be reversed (as it contains no real information). For example, after a successful login, a server might generate a random hash for that specific user. The client (user) will now use the random hash for future authentication instead of the password.
License: Public Domain
Author: "Elverion"
-- Generates a random hash with the specified length.
-- If length is less than or equal to zero, or unspecified, 32 bytes will be assumed.
function random_hash(len)
if( len == nil or len <= 0 ) then len = 32; end;
local holder = ""; -- a string for holding our hash temporarily
-- create an array of all acceptable characters that can be put in our hash.
local hash_chars = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E",
"F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T",
"U", "V", "W", "X", "Y", "Z"};
for i = 1, len do
local index = math.random(1, #hash_chars);
holder = holder .. hash_chars[index];
end
return holder;
end
memory Write String
memoryWriteString(proc, address, msg)
Description:
Enters a string into memory.
Purpose: So strings can be written. Be sure not to write a string that's greater than the strings allocated memory.
License: Public Domain
Author: "zerosignal"
function memoryWriteString(proc, address, msg)
local l_msg_len = msg:len()
local l_char = nil;
for i=0, (l_msg_len-1) do
l_char = msg:byte(i)
--debug_message("char: " .. l_char);
memoryWriteByte(proc, address + i, l_char)
end
memoryWriteByte(proc, address + l_msg_len, 0)
end
Experience per Hour
Description: Estimates the total experience in a hour. Can be extended for Gold, Kills or anything else.
License: Public Domain
Author: "Elverion"
local expGained = 0;
local startTime = os.time();
local lastAnnounce = os.time();
local lastTotalExp = 0;
while(true) do
local newTotalExp = memoryReadInt(proc, experienceaddr, experience_offset);
if( newTotalExp > lastTotalExp ) then
expGained = expGained + (newTotalExp - lastTotalExp);
lastTotalExp = newTotalExp;
end
-- has 10 seconds elapsed? update the exp/min
if( os.difftime(os.time(), lastAnnounce) > 10 ) then
local timeElapsed = os.difftime(os.time(), startTime);
local expPerMin = 0;
if( timeElapsed == 0 ) then timeElapsed = 1; end; -- prevent division by zero
expPerMin = expGained/(timeElapsed/60.0);
lastAnnounce = os.time();
printf("Exp/min: %0.1f\n" expPerMin);
end
end