ref: 4a3c29c2cc3780e893be27a8445265851eb9758c
parent: 961c08f468a543948e8855d62ce017f61b04fda8
author: rodri <rgl@antares-labs.eu>
date: Sun Oct 8 11:24:56 EDT 2023
make sure andys never stall while searching.
--- a/andy.c
+++ b/andy.c
@@ -39,6 +39,31 @@
return nametab[getrand(nelem(nametab))];
}
+/* TODO replace by abort once it becomes noret-ready */
+static _Noreturn void
+myabort(void)
+{+ abort();
+}
+
+static Point2
+getnextfreecell(Map *m)
+{+ Point2 p;
+ int i, j;
+
+ for(i = 0; i < MAPW; i++)
+ for(j = 0; j < MAPH; j++)
+ if(gettile(m, p = Pt2(i,j,1)) == Twater)
+ return p;
+ /*
+ * XXX getting here would mean that we shot every single cell and
+ * the game's still going, so something went wrong.
+ */
+ myabort();
+// return Pt2(0,0,0);
+}
+
static void
turnaround(Andy *a)
{@@ -91,13 +116,11 @@
cells[i] = Pt2(getrand(MAPW-shiplen(i)), getrand(MAPH-shiplen(i)), 1);
o[i] = getrand(1<<20)&1? OH: OV;
sv[i] = o[i] == OH? Vec2(1,0): Vec2(0,1);
- fprint(2, "%d%c ", i, o[i] == OH? 'h': 'v');
for(j = 0; j < i; j++)
if(lineXline(cells[i], addpt2(cells[i], mulpt2(sv[i], shiplen(i))),
cells[j], addpt2(cells[j], mulpt2(sv[j], shiplen(j)))))
goto Retry;
}
- fprint(2, "\n");
n = 0;
for(i = 0; i < nelem(cells); i++){@@ -118,12 +141,16 @@
{Point2 cell;
char buf[3+1];
+ int tries;
+ tries = 0;
+
Retry:
switch(a->state){case ASearching:
do
- cell = Pt2(getrand(MAPW), getrand(MAPH), 1);
+ cell = ++tries > 100?
+ getnextfreecell(a): Pt2(getrand(MAPW), getrand(MAPH), 1);
while(gettile(a, cell) != Twater);
break;
case ACalibrating:
@@ -192,6 +219,7 @@
Andy *a;
a = emalloc(sizeof *a);
+ memset(a->map, Twater, MAPW*MAPH);
a->ego = p;
snprint(p->name, sizeof p->name, "%s", getaname());
a->state = ASearching;