native bind_pcvar_float(pcvar, &Float:var);
Pointer to cvar
Global variable to keep updated
Binds a cvar's float value to a global variable. The variable will then
always contain the current cvar value as it is automatically kept up to date.
The variable *has* to be a global or a static variable. Local variables
created within functions can not be used for technical reasons.
Variables can not be bound to multiple cvars.
This function has no return value.
If an invalid cvar pointer or variable is provided, an error
will be thrown.