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Fix #1219

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Lactozilla 2024-03-14 00:59:49 -03:00
parent 4018a7fa0f
commit 7469a6271b
1 changed files with 18 additions and 6 deletions
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24
src/p_maputl.c
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@ -1026,22 +1026,34 @@ boolean P_BlockLinesIterator(INT32 x, INT32 y, boolean (*func)(line_t *))
//
boolean P_BlockThingsIterator(INT32 x, INT32 y, boolean (*func)(mobj_t *))
{
mobj_t *mobj;
blocknode_t *block;
mobj_t *bnext = NULL;
blocknode_t *block, *next = NULL;
if (x < 0 || y < 0 || x >= bmapwidth || y >= bmapheight)
return true;
// Check interaction with the objects in the blockmap.
for (block = blocklinks[y*bmapwidth + x]; block; block = block->mnext)
for (block = blocklinks[y*bmapwidth + x]; block; block = next)
{
mobj = block->mobj;
next = block->mnext;
if (next)
P_SetTarget(&bnext, next->mobj); // We want to note our reference to bnext here in case it is MF_NOTHINK and gets removed!
if (!func(mobj))
if (!func(block->mobj))
{
P_SetTarget(&bnext, NULL);
return false;
if (P_MobjWasRemoved(tmthing)) // func just broke blockmap chain, cannot continue.
}
if (P_MobjWasRemoved(tmthing) // func just popped our tmthing, cannot continue.
|| (bnext && P_MobjWasRemoved(bnext))) // func just broke blockmap chain, cannot continue.
{
P_SetTarget(&bnext, NULL);
return true;
}
}
P_SetTarget(&bnext, NULL);
return true;
}