From: Eric S. Raymond <esr@thyrsus.com>
Date: Wed, 20 Sep 2006 16:29:48 +0000 (+0000)
Subject: Incorporate BSD-Trek visual-scan code, just in case.
X-Git-Tag: 2.0~213
X-Git-Url: https://jxself.org/git/?p=super-star-trek.git;a=commitdiff_plain;h=0def1139fe1c02cd25c21fe26c9a9722debf4211

Incorporate BSD-Trek visual-scan code, just in case.
---

diff --git a/TODO b/TODO
index 19769b0..e5a3b22 100644
--- a/TODO
+++ b/TODO
@@ -24,12 +24,9 @@ BSD-Trek features we haven't swiped yet:
 
 * Summoning Klingons to surrender and taking captives.
 
-* Automatic bugout sets your warp factor to > 6.
-
 * Smarter computer, with multiple requests.
 
 * There is a small probility that a nova event will leave a black hole.
 
 * Multiple laser banks and beam spreading.
 
-* Visual scans for when sensors are out.
diff --git a/doc/sst-doc.xml b/doc/sst-doc.xml
index ef76268..5807be7 100644
--- a/doc/sst-doc.xml
+++ b/doc/sst-doc.xml
@@ -411,6 +411,21 @@ short-range scan anytime you like.</para>
 the contents of adjacent sectors.</para>
 
 </sect1>
+<!--
+<sect1><title>Visual Scan</title>
+
+<literallayout>
+Mnemonic:  VISUAL
+Shortest abbreviation: V
+</literallayout>
+
+<para>A visual scan is made in a particular direction of three sectors
+in the general direction specified.  This takes time, and Klingons can
+attack you, so it should be done only when short-range sensors are
+out.</para>
+
+</sect1>
+-->
 <sect1><title>Status Report</title>
 
 <literallayout>
diff --git a/src/reports.c b/src/reports.c
index 90b9faf..39fcf36 100644
--- a/src/reports.c
+++ b/src/reports.c
@@ -557,3 +557,74 @@ void eta(void)
     }
 			
 }
+
+#if BSD_BUG_FOR_BUG
+/*
+ *	A visual scan is made in a particular direction of three sectors
+ *	in the general direction specified.  This takes time, and
+ *	Klingons can attack you, so it should be done only when sensors
+ * 	are out.  Code swiped from BSD-Trek.  Not presently used, as we
+ *	automatically display all adjacent sectors on the short-range
+ *	scan even when short-range sensors are out.
+ */
+
+/* This struct[] has the delta x, delta y for particular directions */
+coord visdelta[] =
+{
+    {-1,-1},
+    {-1, 0},
+    {-1, 1},
+    {0,	 1},
+    {1,	 1},
+    {1,	 0},
+    {1,	-1},
+    {0,	-1},
+    {-1,-1},
+    {-1, 0},
+    {-1, 1},
+};
+
+void visual(void)
+{
+    int		co, ix, iy;
+    coord	*v;
+
+    if (scan() != IHREAL) {
+	chew();
+	proutn(_("Direction? "));
+	if (scan()!=IHREAL) {
+	    huh();
+	    return;
+	}
+    }
+    if (aaitem < 0.0 || aaitem > 360.0)
+	return;
+    co = (aaitem + 22) / 45;
+    v = &visdelta[co];
+    ix = game.sector.x + v->x;
+    iy = game.sector.y + v->y;
+    if (ix < 0 || ix >= QUADSIZE || iy < 0 || iy >= QUADSIZE)
+	co = '?';
+    else
+	co = game.quad[ix][iy];
+    printf("%d,%d %c ", ix, iy, co);
+    v++;
+    ix = game.sector.x + v->x;
+    iy = game.sector.y + v->y;
+    if (ix < 0 || ix >= QUADSIZE || iy < 0 || iy >= QUADSIZE)
+	co = '?';
+    else
+	co = game.quad[ix][iy];
+    printf("%c ", co);
+    v++;
+    ix = game.sector.x + v->x;
+    iy = game.sector.y + v->y;
+    if (ix < 0 || ix >= QUADSIZE || iy < 0 || iy >= QUADSIZE)
+	co = '?';
+    else
+	co = game.quad[ix][iy];
+    printf("%c %d,%d\n", co, ix, iy);
+    game.optime = 0.5;
+    game.ididit = true;
+}
+#endif
diff --git a/src/sst.c b/src/sst.c
index d196984..0ae5598 100644
--- a/src/sst.c
+++ b/src/sst.c
@@ -291,6 +291,10 @@ commands[] = {
 	{"HELP",	HELP,		0},
 #define SEED	37
 	{"SEED",	SEED,		0},
+#if BSD_BUG_FOR_BUG
+#define VISUAL	38
+	{"VISUAL",	VISUAL,		0},
+#endif
 };
 
 #define NUMCOMMANDS	sizeof(commands)/sizeof(commands[0])
@@ -572,6 +576,11 @@ static void makemoves(void)
 	    if (key == IHREAL)
 		seed = (int)aaitem;
 	    break;
+#if BSD_BUG_FOR_BUG
+	case VISUAL:
+	    visual();			// perform visual scan
+	    break;
+#endif
 	}
 	commandhook(commands[i].name, false);
 	for (;;) {
diff --git a/src/sst.h b/src/sst.h
index 344ddcb..c7a146d 100644
--- a/src/sst.h
+++ b/src/sst.h
@@ -438,6 +438,9 @@ void makechart(void);
 void enqueue(char *);
 char *systemname(int);
 coord newkling(int);
+#if BSD_BUG_FOR_BUG
+void visual(void);
+#endif
 
 extern WINDOW *curwnd;
 extern WINDOW *fullscreen_window;