diff options
| -rw-r--r-- | README | 6 | ||||
| -rw-r--r-- | lunar.c | 48 |
2 files changed, 50 insertions, 4 deletions
@@ -23,10 +23,8 @@ Though written under FreeBSD, it should compile OK on most flavours of unix. USAGE ----- -lunar [-noshm] [scale] - Use scale to magnify and impact overly fast servers. - Use -noshm as well if your server is still too fast - to disable MIT-SHM usage. (Note shm usage will be - disabled if your server doesn't support it anyway). +lunar [-noshm] [scale] - Use scale to magnify the screen. Use -noshm to + disable MIT_SHM usage if it causes problems. ledit <level_file> @@ -37,6 +37,7 @@ static char rcs_id[]="$Id$"; #include <fcntl.h> #include <string.h> #include <errno.h> +#include <signal.h> #include <unistd.h> #include <sys/types.h> @@ -79,6 +80,8 @@ static uchar *coll_data; static double si[3600],co[3600]; +static struct timespec frame_start; + static XFuncControl Key(Window w, XPressRelease s, XEvent *e); static XFuncControl ProcessTitle(void),ProcessIntro(void),ProcessGame(void), ProcessGameOver(void),ProcessHiScore(void); @@ -356,6 +359,8 @@ static int Paused(int k); static void ReadScores(void); static void WriteScores(void); static void ReadLevels(void); +static void StartFrame(void); +static void EndFrame(void); int main(int argc,char *argv[]) @@ -1164,6 +1169,7 @@ static XFuncControl ProcessTitle(void) ctr++; + StartFrame(); Cls(); for(f=0;f<10;f++) @@ -1198,6 +1204,7 @@ static XFuncControl ProcessTitle(void) DoDebugMenu(); Update(); + EndFrame(); k=GetKey(); @@ -1345,6 +1352,7 @@ static XFuncControl ProcessGame(void) if (Paused(k)) return XFUNCCONT; + StartFrame(); Cls(); /* Process movement @@ -1471,6 +1479,7 @@ static XFuncControl ProcessGame(void) CheckCollisions(&landed,&dead); Update(); + EndFrame(); if (k==SCALE_UP) { @@ -1643,6 +1652,7 @@ static XFuncControl ProcessHiScore(void) first=False; } + StartFrame(); Cls(); Centre(16,WHITE,"CONGRATULATIONS!"); @@ -1689,6 +1699,7 @@ static XFuncControl ProcessHiScore(void) bounce--; Update(); + EndFrame(); if (len==3) { @@ -1860,3 +1871,40 @@ static void ReadLevels(void) for(f=0;f<no_levels;f++) free(name[f]); } + +static void StartFrame(void) +{ + clock_gettime(CLOCK_REALTIME, &frame_start); +} + + +static void EndFrame(void) +{ + static const long FRAME = 1000000000 / 25; + struct timespec now; + struct timespec diff; + + clock_gettime(CLOCK_REALTIME, &now); + + diff.tv_sec = now.tv_sec - frame_start.tv_sec; + diff.tv_nsec = now.tv_nsec - frame_start.tv_nsec; + + if (diff.tv_sec > 0) + { + diff.tv_sec--; + diff.tv_nsec += 1000000000; + } + + if (diff.tv_nsec >= 1000000000) + { + diff.tv_sec++; + diff.tv_nsec -= 1000000000; + } + + if (diff.tv_sec == 0 && diff.tv_nsec < FRAME) + { + diff.tv_nsec = FRAME - diff.tv_nsec; + + nanosleep(&diff, NULL); + } +} |