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boomerang path (trunk only)

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Thrown boomerangs travelled in a clockwise path, appropriate for
left-handed throwing.  But nethack heroes are treated as right-handed by
the weapon wielding and shield wearing code, so make boomerangs travel
counterclockwise instead.  Switching is straightforward, in case we ever
implement user-specified or random handedness.
This commit is contained in:
nethack.rankin
2006-12-21 04:03:33 +00:00
parent f4faab3f73
commit fb07e9d06f
2 changed files with 22 additions and 5 deletions
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1
doc/fixes35.0
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@@ -181,6 +181,7 @@ same-race sacrifice can't damage high altars
allow corpses on floor to be offered at high altars
allow hero to attempt to offer the Amulet at ordinary altars
shooting range for crossbow isn't affected by strength; multi-shot volley is
right-handed boomerang throw travels counterclockwise
Platform- and/or Interface-Specific Fixes

26
src/zap.c
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@@ -3082,17 +3082,31 @@ struct obj *obj;
int dx, dy;
{
register int i, ct;
int boom = S_boomleft; /* showsym[] index */
int boom; /* showsym[] index */
struct monst *mtmp;
boolean counterclockwise = TRUE; /* right-handed throw */
/* counterclockwise traversal patterns:
* ..........................54.................................
* ..................43.....6..3....765.........................
* ..........32.....5..2...7...2...8...4....87..................
* .........4..1....6..1...8..1....9...3...9..6.....98..........
* ..21@....5...@...7..@....9@......@12....@...5...@..7.....@9..
* .3...9....6..9....89.....................1..4...1..6....1..8.
* .4...8.....78.............................23....2..5...2...7.
* ..567............................................34....3..6..
* ........................................................45...
* (invert rows for corresponding clockwise patterns)
*/
bhitpos.x = u.ux;
bhitpos.y = u.uy;
boom = counterclockwise ? S_boomleft : S_boomright;
for (i = 0; i < 8; i++) if (xdir[i] == dx && ydir[i] == dy) break;
tmp_at(DISP_FLASH, cmap_to_glyph(boom));
for (ct = 0; ct < 10; ct++) {
if(i == 8) i = 0;
boom = (boom == S_boomleft) ? S_boomright : S_boomleft;
i = (i + 8) % 8; /* 0..7 (8 -> 0, -1 -> 7) */
boom = (S_boomleft + S_boomright - boom); /* toggle */
tmp_at(DISP_CHANGE, cmap_to_glyph(boom));/* change glyph */
dx = xdir[i];
dy = ydir[i];
@@ -3126,11 +3140,13 @@ int dx, dy;
}
tmp_at(bhitpos.x, bhitpos.y);
delay_output();
if(ct % 5 != 0) i++;
#ifdef SINKS
if(IS_SINK(levl[bhitpos.x][bhitpos.y].typ))
break; /* boomerang falls on sink */
#endif
/* ct==0, initial position, we want next delta to be same;
ct==5, opposite position, repeat delta undoes first one */
if (ct % 5 != 0) i += (counterclockwise ? -1 : 1);
}
tmp_at(DISP_END, 0); /* do not leave last symbol */
return (struct monst *)0;