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Purge magic numbers from C side of destination handling.

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This commit is contained in:
Eric S. Raymond 2017-07-07 07:50:39 -04:00
parent e619c41048
commit 2bdf9e2803
2 changed files with 33 additions and 17 deletions
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27
main.c
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@ -384,9 +384,10 @@ static bool dwarfmove(void)
kk = tkey[game.dloc[i]];
if (kk != 0)
do {
game.newloc = travel[kk].dest;
enum desttype_t desttype = travel[kk].desttype;
game.newloc = travel[kk].destval;
/* Have we avoided a dwarf encounter? */
if (SPECIAL(game.newloc))
if (desttype != dest_goto)
continue;
else if (!INDEEP(game.newloc))
continue;
@ -509,7 +510,8 @@ static bool traveleq(long a, long b)
/* Are two travel entries equal for purposes of skip after failed condition? */
{
return (travel[a].cond == travel[b].cond)
&& (travel[a].dest == travel[b].dest);
&& (travel[a].desttype == travel[b].desttype)
&& (travel[a].destval == travel[b].destval);
}
/* Given the current location in "game.loc", and a motion verb number in
@ -545,10 +547,11 @@ static void playermove( int motion)
if (spk == 0) {
int te_tmp = 0;
for (;;) {
scratchloc = travel[travel_entry].dest;
if (scratchloc != motion) {
if (!SPECIAL(scratchloc)) {
if (FORCED(scratchloc) && travel[tkey[scratchloc]].dest == motion)
enum desttype_t desttype = travel[travel_entry].desttype;
scratchloc = travel[travel_entry].destval;
if (desttype != dest_goto || scratchloc != motion) {
if (desttype == dest_goto) {
if (FORCED(scratchloc) && travel[tkey[scratchloc]].destval == motion)
te_tmp = travel_entry;
}
if (!travel[travel_entry].stop) {
@ -662,17 +665,17 @@ static void playermove( int motion)
}
/* Found an eligible rule, now execute it */
game.newloc = travel[travel_entry].dest;
if (!SPECIAL(game.newloc))
enum desttype_t desttype = travel[travel_entry].desttype;
game.newloc = travel[travel_entry].destval;
if (desttype == dest_goto)
return;
if (game.newloc > 500) {
if (desttype == dest_speak) {
/* Execute a speak rule */
rspeak(L_SPEAK(game.newloc));
rspeak(game.newloc);
game.newloc = game.loc;
return;
} else {
game.newloc -= SPECIALBASE;
switch (game.newloc) {
case 1:
/* Special travel 1. Plover-alcove passage. Can carry only

23
make_dungeon.py
View file

@ -149,10 +149,13 @@ typedef struct {{
const char* message;
}} special_t;
enum desttype_t {{dest_goto, dest_special, dest_speak}};
typedef struct {{
const long motion;
const long cond;
const long dest;
const enum desttype_t desttype;
const long destval;
const bool nodwarves;
const bool stop;
}} travelop_t;
@ -163,7 +166,6 @@ typedef struct {{
* encoding description for travel.
*/
#define T_TERMINATE(entry) ((entry).motion == 1)
#define L_SPEAK(loc) ((loc) - 500)
extern const location_t locations[];
extern const object_t objects[];
@ -702,7 +704,7 @@ def buildtravel(locs, objs):
#
# In order to de-crypticize the runtime code, we're going to break these
# magic numbers up into a struct.
travel = [[0, "LOC_NOWHERE", 0, 0, 0, "false", "false"]]
travel = [[0, "LOC_NOWHERE", 0, 0, 0, 0, "false", "false"]]
tkey = [0]
oldloc = 0
while ltravel:
@ -717,11 +719,21 @@ def buildtravel(locs, objs):
while rule:
cond = newloc // 1000
dest = newloc % 1000
if dest <= 300:
desttype = "dest_goto";
destval = locnames[dest]
elif dest > 500:
desttype = "dest_speak";
destval = msgnames[dest - 500]
else:
desttype = "dest_special";
destval = locnames[dest - 300]
travel.append([len(tkey)-1,
locnames[len(tkey)-1],
rule.pop(0),
cond,
locnames[dest] if dest <= 300 else dest,
desttype,
destval,
"true" if cond==100 else "false",
"false"])
travel[-1][-1] = "true"
@ -731,7 +743,8 @@ def get_travel(travel):
template = """ {{ // from {}: {}
.motion = {},
.cond = {},
.dest = {},
.desttype = {},
.destval = {},
.nodwarves = {},
.stop = {},
}},