<function name="SharedRandom" parent="util" type="libraryfunc"> <description> Generates a random float value that should be the same on client and server. <note>This function is best used in a <page text="predicted hook">prediction</page></note>⤶ <note>This function is best used in a <page text="predicted hook">prediction</page>.</note>⤶ ⤶ This uses a different method of obtaining random numbers and is unaffected by <page>math.randomseed</page>. Instead it uses an internal seed that is based on the player's current predicted command and is fixed to a value of -1 outside of prediction.⤶ </description> <realm>Shared</realm> <args> <arg name="uniqueName" type="string">The seed for the random value</arg> <arg name="min" type="number">The minimum value of the random range</arg> <arg name="max" type="number">The maximum value of the random range</arg> <arg name="additionalSeed" type="number" default="0">The additional seed</arg> </args> <rets> <ret name="" type="number">The random float value</ret> </rets> </function> <example> <description>Example usage of the function. Generates some random values.</description> <code> print( util.SharedRandom( "23", 0, 100 ) ) print( util.SharedRandom( "23", 0, 100 ) ) print( util.SharedRandom( "23", 0, 100, 0 ) ) print( util.SharedRandom( "23", 0, 100, 1337 ) ) print( util.SharedRandom( "lol", 0, 100, 1337 ) ) </code> <output> ``` 15.979786317786 15.979786317786 15.979786317786 24.08124470342 78.480193614252 ``` </output> ⤶ </example></example>⤶ ⤶ <example>⤶ <description>A demonstration of how this function interacts with prediction.</description>⤶ <code>⤶ local function printValues()⤶ print(util.SharedRandom("a seed", 0, 100))⤶ end⤶ ⤶ function SWEP:PrimaryAttack()⤶ -- Because it's being called in prediction these values will change every time you fire, as the⤶ -- internal seed is being updated every tick.⤶ print("Predicted")⤶ printValues()⤶ ⤶ -- The internal seed only ever updates between commands, so the same arguments will give⤶ -- the same results when executed during the same tick.⤶ printValues()⤶ ⤶ -- Timers break prediction, so the code below uses an internal seed of -1 and will⤶ -- always return the same value regardless of game tick.⤶ timer.Simple(0, function()⤶ print("Unpredicted")⤶ printValues()⤶ end)⤶ end⤶ </code>⤶ <output>⤶ ```⤶ Predicted⤶ 1.4230553998719⤶ 1.4230553998719⤶ ⤶ Unpredicted⤶ 43.928178187426⤶ ---⤶ Predicted⤶ 46.720645319075⤶ 46.720645319075⤶ ⤶ Unpredicted⤶ 43.928178187426⤶ ---⤶ Predicted⤶ 99.127414868738⤶ 99.127414868738⤶ ⤶ Unpredicted⤶ 43.928178187426⤶ ```⤶ </output>⤶ </example>