games/tetris: hide the cursor during game

[David Coppa]

Hi, 

Nice improvement for the best Tetris implementation ever made.
>From NetBSD.

OK? 

Index: screen.c
===================================================================
RCS file: /cvs/src/games/tetris/screen.c,v
retrieving revision 1.13
diff -u -p -r1.13 screen.c
--- screen.c    20 Apr 2006 03:25:36 -0000      1.13
+++ screen.c    31 Mar 2011 08:16:26 -0000
@@ -80,7 +80,9 @@ static char
        *LLstr,                 /* last line, first column */
        *pcstr,                 /* pad character */
        *TEstr,                 /* end cursor motion mode */
-       *TIstr;                 /* begin cursor motion mode */
+       *TIstr,                 /* begin cursor motion mode */
+       *VIstr,                 /* make cursor invisible */
+       *VEstr;                 /* make cursor appear normal */
 char
        *SEstr,                 /* end standout mode */
        *SOstr;                 /* begin standout mode */
@@ -107,6 +109,8 @@ struct tcsinfo {            /* termcap string info
        {"so", &SOstr},
        {"te", &TEstr},
        {"ti", &TIstr},
+       {"vi", &VIstr},
+       {"ve", &VEstr},
        {"up", &UP},            /* cursor up */
        { {0}, NULL}
 };
@@ -291,6 +295,8 @@ scr_set(void)
         */
        if (TIstr)
                putstr(TIstr);  /* termcap(5) says this is not padded */
+       if (VIstr)
+               putstr(VIstr);  /* termcap(5) says this is not padded */
        if (tstp != SIG_IGN)
                (void) signal(SIGTSTP, scr_stop);
        if (ttou != SIG_IGN)
@@ -321,6 +327,8 @@ scr_end(void)
        /* exit screen mode */
        if (TEstr)
                putstr(TEstr);  /* termcap(5) says this is not padded */
+       if (VEstr)
+               putstr(VEstr);  /* termcap(5) says this is not padded */
        (void) fflush(stdout);
        (void) tcsetattr(0, TCSADRAIN, &oldtt);
        isset = 0;