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Use path_find() directly where only cost is needed

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dist(), att_reacting_units() and s_commod() are only interested in
cost, not the actual path.  BestLandPath() and BestDistPath() compute
both cost and path.  Use path_find() directly instead.

Destinations are no longer treated as unreachable when the best path
is longer than 1023 characters.
This commit is contained in:
Markus Armbruster 2011-03-21 20:26:02 +01:00
parent 04363a92db
commit aef27e3521
3 changed files with 17 additions and 18 deletions
Download patch file Download diff file Expand all files Collapse all files

7
src/lib/commands/dist.c
View file

@ -30,6 +30,7 @@
* Dave Pare, 1986
* Thomas Ruschak, 1993 (rewritten)
* Steve McClure, 1998
* Markus Armbruster, 2008-2011
*/
#include <config.h>
@ -46,7 +47,7 @@ dist(void)
struct sctstr sect, dsect, tsect;
struct nstr_sect nstr;
char *p;
double move_cost = 0.0;
double move_cost;
coord dstx, dsty;
char buf[1024];
@ -90,7 +91,9 @@ dist(void)
pr("Warning: you don't own %s!\n",
xyas(dsect.sct_x, dsect.sct_y, player->cnum));
if (!BestDistPath(buf, &sect, &dsect, &move_cost)) {
move_cost = path_find(sect.sct_x, sect.sct_y, dstx, dsty,
player->cnum, MOB_MOVE);
if (move_cost < 0) {
pr("No owned path from %s to %s.\n",
xyas(dsect.sct_x, dsect.sct_y, player->cnum),
xyas(sect.sct_x, sect.sct_y, player->cnum));

12
src/lib/subs/attsub.c
View file

@ -29,7 +29,7 @@
* Known contributors to this file:
* Ken Stevens, 1995
* Steve McClure, 1996-2000
* Markus Armbruster, 2006-2009
* Markus Armbruster, 2006-2011
*/
#include <config.h>
@ -1457,7 +1457,6 @@ att_reacting_units(struct combat *def, struct emp_qelem *list, int a_spy,
{
struct nstr_item ni;
struct lndstr land;
struct sctstr sect, dsect;
struct ulist *llp;
int dtotal;
double new_land = 0;
@ -1465,7 +1464,6 @@ att_reacting_units(struct combat *def, struct emp_qelem *list, int a_spy,
double pathcost;
int origx, origy;
double eff = att_combat_eff(def);
char buf[1024];
if (list)
dtotal = get_dtotal(def, list, 1.0, 1);
@ -1497,12 +1495,10 @@ att_reacting_units(struct combat *def, struct emp_qelem *list, int a_spy,
if (!in_oparea((struct empobj *)&land, def->x, def->y))
continue;
getsect(land.lnd_x, land.lnd_y, &sect);
getsect(def->x, def->y, &dsect);
if (!BestLandPath(buf, &sect, &dsect, &pathcost,
lnd_mobtype(&land)))
pathcost = path_find(land.lnd_x, land.lnd_y, def->x, def->y,
def->own, lnd_mobtype(&land));
if (pathcost < 0)
continue;
mobcost = lnd_pathcost(&land, pathcost);
if (land.lnd_mobil < mobcost)
continue;

16
src/lib/subs/supply.c
View file

@ -27,7 +27,7 @@
* supply.c: Supply subroutines
*
* Known contributors to this file:
* Markus Armbruster, 2004-2009
* Markus Armbruster, 2004-2011
*/
#include <config.h>
@ -109,7 +109,7 @@ s_commod(struct empobj *sink, short *vec,
coord x = sink->x;
coord y = sink->y;
int lookrange;
struct sctstr sect, dest;
struct sctstr sect;
struct nstr_sect ns;
struct nstr_item ni;
struct lchrstr *lcp;
@ -122,7 +122,6 @@ s_commod(struct empobj *sink, short *vec,
int packing;
struct dchrstr *dp;
struct ichrstr *ip;
char buf[1024];
if (wanted > limit)
wanted = limit;
@ -130,8 +129,6 @@ s_commod(struct empobj *sink, short *vec,
return 1;
wanted -= vec[type];
getsect(x, y, &dest);
/* try to get it from sector we're in */
if (sink->ef_type != EF_SECTOR) {
getsect(x, y, &sect);
@ -175,7 +172,8 @@ s_commod(struct empobj *sink, short *vec,
continue;
if (sect.sct_effic < 60)
continue;
if (!BestLandPath(buf, &sect, &dest, &move_cost, MOB_MOVE))
move_cost = path_find(sect.sct_x, sect.sct_y, x, y, own, MOB_MOVE);
if (move_cost < 0)
continue;
if (!opt_NOFOOD && type == I_FOOD)
minimum = 1 + (int)ceil(food_needed(sect.sct_item,
@ -247,7 +245,8 @@ s_commod(struct empobj *sink, short *vec,
continue;
if (sect.sct_effic < 2)
continue;
if (!BestLandPath(buf, &sect, &dest, &move_cost, MOB_MOVE))
move_cost = path_find(sect.sct_x, sect.sct_y, x, y, own, MOB_MOVE);
if (move_cost < 0)
continue;
if (!opt_NOFOOD && type == I_FOOD)
minimum = 1 + (int)ceil(food_needed(ship.shp_item,
@ -321,7 +320,8 @@ s_commod(struct empobj *sink, short *vec,
continue;
getsect(land.lnd_x, land.lnd_y, &sect);
if (!BestLandPath(buf, &sect, &dest, &move_cost, MOB_MOVE))
move_cost = path_find(land.lnd_x, land.lnd_y, x, y, own, MOB_MOVE);
if (move_cost < 0)
continue;
if ((land.lnd_ship >= 0) && (sect.sct_type != SCT_HARBR))