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SW: Fix crash issues when Track sprites are set up incorrectly

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git-svn-id: https://svn.eduke32.com/eduke32@8485 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
hendricks266 2019-12-22 10:21:22 +00:00 committed by Christoph Oelckers
parent e50cdbad0c
commit f4fda7e646
3 changed files with 14 additions and 3 deletions
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2
source/sw/src/sprite.cpp
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@ -817,6 +817,8 @@ KillSprite(int16_t SpriteNum)
void ChangeState(short SpriteNum, STATEp statep) void ChangeState(short SpriteNum, STATEp statep)
{ {
USERp u = User[SpriteNum]; USERp u = User[SpriteNum];
if (u == nullptr)
return;
u->Tics = 0; u->Tics = 0;
u->State = u->StateStart = statep; u->State = u->StateStart = statep;

8
source/sw/src/track.cpp
View file

@ -642,7 +642,7 @@ TrackSetup(void)
{ {
int i, nexti; int i, nexti;
auto const sp = (uspritetype const *)&sprite[headspritestat[STAT_TRACK+ndx]]; auto const sp = (uspritetype const *)&sprite[headspritestat[STAT_TRACK+ndx]];
buildprintf("WARNING: Did not find first point of Track Number %d, x %d, y %d", ndx, sp->x, sp->y); buildprintf("WARNING: Did not find first point of Track Number %d, x %d, y %d\n", ndx, sp->x, sp->y);
for (i=headspritestat[STAT_TRACK+ndx]; i>=0; i=nexti) for (i=headspritestat[STAT_TRACK+ndx]; i>=0; i=nexti)
{ {
// neuter the track's sprite list // neuter the track's sprite list
@ -1598,6 +1598,12 @@ PlaceActorsOnTracks(void)
NextActorTrackPoint(i); NextActorTrackPoint(i);
if (Track[u->track].NumPoints == 0)
{
buildprintf("WARNING: Sprite %d (%d, %d) placed on track %d with no points!\n", i, TrackerCast(sp->x), TrackerCast(sp->y), u->track);
continue;
}
// check angle in the "forward" direction // check angle in the "forward" direction
sp->ang = getangle((tpoint + u->point)->x - sp->x, (tpoint + u->point)->y - sp->y); sp->ang = getangle((tpoint + u->point)->x - sp->x, (tpoint + u->point)->y - sp->y);
} }

7
source/sw/src/weapon.cpp
View file

@ -4949,8 +4949,11 @@ SetSuicide(short SpriteNum)
SPRITEp sp = &sprite[SpriteNum]; SPRITEp sp = &sprite[SpriteNum];
USERp u = User[SpriteNum]; USERp u = User[SpriteNum];
SET(u->Flags, SPR_SUICIDE); if (u != nullptr)
u->RotNum = 0; {
SET(u->Flags, SPR_SUICIDE);
u->RotNum = 0;
}
ChangeState(SpriteNum, s_Suicide); ChangeState(SpriteNum, s_Suicide);
#else #else
// this will NOT work because // this will NOT work because