http://www.jwz.org/xscreensaver/xscreensaver-5.07.tar.gz

[xscreensaver] / hacks / eruption.c

diff --git a/hacks/eruption.c b/hacks/eruption.c
index 2084cbf27bc77cfd150c57f5d44f2c806e4cbab1..1674fbfc0be65dd743b306361ee0306c2ebc55ff 100644 (file)
--- a/hacks/eruption.c
+++ b/hacks/eruption.c
@@ -116,6 +116,7 @@ static void Execute( struct state *st )
          else if (st->particles[i].xpos >= st->iWinWidth - 2)
            {
              st->particles[i].xpos = st->iWinWidth - 2;
+             if (st->particles[i].xpos < 1) st->particles[i].xpos = 1;
              st->particles[i].xdir = -st->particles[i].xdir + 4;
              st->particles[i].colorindex = st->iColorCount;
            }
@@ -129,9 +130,11 @@ static void Execute( struct state *st )
          else if (st->particles[i].ypos >= st->iWinHeight - 3)
            {
              st->particles[i].ypos = st->iWinHeight- 3;
+             if (st->particles[i].ypos < 1) st->particles[i].ypos = 1;
              st->particles[i].ydir = (-st->particles[i].ydir >> 2) - (random() % 2);
              st->particles[i].colorindex = st->iColorCount;
            }
+
          
          /* st->gravity kicks in */
          st->particles[i].ydir += st->gravity;
@@ -140,6 +143,7 @@ static void Execute( struct state *st )
          st->particles[i].colorindex--;
          
          /* draw particle */
+         if (st->iWinHeight <= 2 || st->iWinWidth <= 2) continue;
          st->fire[st->particles[i].ypos][st->particles[i].xpos] = st->particles[i].colorindex;
          st->fire[st->particles[i].ypos][st->particles[i].xpos - 1] = st->particles[i].colorindex;
          st->fire[st->particles[i].ypos + 1][st->particles[i].xpos] = st->particles[i].colorindex;
@@ -474,6 +478,7 @@ eruption_free (Display *dpy, Window window, void *closure)
 static const char *eruption_defaults [] = {
   ".background: black",
   ".foreground: white",
+  "*fpsTop:    true",
   "*cycles:   80",
   "*ncolors:  256",
   "*delay:    10000",