SGE Documentation - Misc. functions

# Misc. functions

- sge_Random
- sge_Randomize
- sge_CalibrateDelay
- sge_DelayRes
- sge_Delay

int sge_Random(int min, int max)
Returns a random integer between (and including) min and max.
void sge_Randomize(void)
Seed the random number generator with a number from the system clock. Should be called once before the first use of sge_Random.
Uint32 sge_CalibrateDelay(void)
Tests and returns the current resolution (the smallest delay possible) of SDL_Delay(). This test will take 10-50ms to complete.
Uint32 sge_DelayRes(void)
Returns the latest result of sge_CalibrateDelay() or 10ms as default.
Uint32 sge_Delay(Uint32 ticks)
The SGE version of SDL_Delay(). SDL_Delay() burns time by giving it to the system, which gives other tasks more CPU time. BUT (if you're not running a realtime OS) the delay will not take the exact time you specified and will not be the same on a different machine or OS. sge_Delay() uses sge_DelayRes() to get the safe amount of time to burn with SDL_Delay() and burns the rest in a loop. This should give the same delay on all machines & OSes but still give more CPU time to other tasks if possible. Note that if the user starts something CPU intensive after you called sge_CalibrateDelay() the result will be less reliable.
Returns the exact time delayed.

Copyright © 1999-2003 Anders Lindström
Last updated 030808