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k_collide.cpp: Guard against dereferencing possibly invalid t2

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toaster 2023-04-11 17:41:41 +01:00
parent b9133530e2
commit c7e510a3ec
1 changed files with 25 additions and 6 deletions
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31
src/k_collide.cpp
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@ -444,15 +444,22 @@ boolean K_LandMineCollide(mobj_t *t1, mobj_t *t2)
else
t2->z += t2->height;
P_SpawnMobj(t2->x/2 + t1->x/2, t2->y/2 + t1->y/2, t2->z/2 + t1->z/2, MT_ITEMCLASH);
S_StartSound(t2, t2->info->deathsound);
P_KillMobj(t2, t1, t1, DMG_NORMAL);
P_SetObjectMomZ(t2, 24*FRACUNIT, false);
P_InstaThrust(t2, bounceangle, 16*FRACUNIT);
if (P_MobjWasRemoved(t2))
{
t2 = NULL; // handles the arguments to P_KillMobj
}
else
{
P_SetObjectMomZ(t2, 24*FRACUNIT, false);
P_InstaThrust(t2, bounceangle, 16*FRACUNIT);
P_SpawnMobj(t2->x/2 + t1->x/2, t2->y/2 + t1->y/2, t2->z/2 + t1->z/2, MT_ITEMCLASH);
t1->reactiontime = t2->hitlag;
t1->reactiontime = t2->hitlag;
}
P_KillMobj(t1, t2, t2, DMG_NORMAL);
}
else if (t2->type == MT_SSMINE_SHIELD || t2->type == MT_SSMINE || t2->type == MT_LANDMINE)
@ -466,7 +473,15 @@ boolean K_LandMineCollide(mobj_t *t1, mobj_t *t2)
// Shootable damage
P_DamageMobj(t2, t1, t1->target, 1, DMG_NORMAL);
t1->reactiontime = t2->hitlag;
if (P_MobjWasRemoved(t2))
{
t2 = NULL; // handles the arguments to P_KillMobj
}
else
{
t1->reactiontime = t2->hitlag;
}
P_KillMobj(t1, t2, t2, DMG_NORMAL);
}
@ -796,6 +811,10 @@ boolean K_KitchenSinkCollide(mobj_t *t1, mobj_t *t2)
{
// Shootable damage
P_KillMobj(t2, t2, t1->target, DMG_NORMAL);
if (P_MobjWasRemoved(t2))
{
t2 = NULL; // handles the arguments to P_KillMobj
}
// This item damage
P_KillMobj(t1, t2, t2, DMG_NORMAL);
}