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- fixed: When moving a sector plane P_CheckPosition must do the same anti-overlap checks for monsters like P_Move to avoid monster pile-ups.

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SVN r2801 (trunk)
This commit is contained in:
Christoph Oelckers 2010-09-16 20:15:44 +00:00
parent 6db772b4e5
commit 6789b8936c
1 changed files with 20 additions and 8 deletions
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28
src/p_map.cpp
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@ -844,16 +844,23 @@ bool PIT_CheckThing (AActor *thing, FCheckPosition &tm)
if (tm.FromPMove)
{
fixed_t newdist = P_AproxDistance(thing->x - tm.x, thing->y - tm.y);
fixed_t olddist = P_AproxDistance(thing->x - tm.thing->x, thing->y - tm.thing->y);
// Both actors already overlap. To prevent them from remaining stuck allow the move if it
// takes them further apart.
if (newdist > olddist)
// takes them further apart or the move does not change the position (when called from P_ChangeSector.)
if (tm.x == tm.thing->x && tm.y == tm.thing->y)
{
// ... but not if they did not overlap in z-direction before but would after the move.
unblocking = !((tm.thing->x >= thing->x + thing->height && tm.x < thing->x + thing->height) ||
(tm.thing->x + tm.thing->height <= thing->x && tm.x + tm.thing->height > thing->x));
unblocking = true;
}
else
{
fixed_t newdist = P_AproxDistance(thing->x - tm.x, thing->y - tm.y);
fixed_t olddist = P_AproxDistance(thing->x - tm.thing->x, thing->y - tm.thing->y);
if (newdist > olddist)
{
// ... but not if they did not overlap in z-direction before but would after the move.
unblocking = !((tm.thing->z >= thing->z + thing->height && tm.z < thing->z + thing->height) ||
(tm.thing->z + tm.thing->height <= thing->z && tm.z + tm.thing->height > thing->z));
}
}
}
@ -4512,6 +4519,11 @@ bool P_AdjustFloorCeil (AActor *thing, FChangePosition *cpos)
int flags2 = thing->flags2 & MF2_PASSMOBJ;
FCheckPosition tm;
if ((thing->flags2 & MF2_PASSMOBJ) && (thing->flags3 & MF3_ISMONSTER))
{
tm.FromPMove = true;
}
if (cpos->movemidtex)
{
// From Eternity: