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Add clean up to K_PuntMine

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This cleans up hnext when a mine shield is P_RemoveMobj'ed while being punted
Otherwise, hnext could point to a removed mobj and cause undefined behavior
This also fixes the bug where if you have multiple mines in your slot, drag one
and have it punted, all your unused mines would disappear.
This should/may fix the crashes/desyncs I've observed in gameplay when a held mine is punted.
This commit is contained in:
Ashnal 2020-07-14 00:21:46 -04:00
parent f856f18233
commit ddc0bc16ab
1 changed files with 14 additions and 1 deletions
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15
src/k_kart.c
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@ -3312,7 +3312,8 @@ void K_PuntMine(mobj_t *thismine, mobj_t *punter)
if (!thismine || P_MobjWasRemoved(thismine))
return;
if (thismine->type == MT_SSMINE_SHIELD) // Create a new mine
//This guarantees you hit a mine being dragged
if (thismine->type == MT_SSMINE_SHIELD) // Create a new mine, and clean up the old one
{
mine = P_SpawnMobj(thismine->x, thismine->y, thismine->z, MT_SSMINE);
P_SetTarget(&mine->target, thismine->target);
@ -3320,7 +3321,19 @@ void K_PuntMine(mobj_t *thismine, mobj_t *punter)
mine->flags2 = thismine->flags2;
mine->floorz = thismine->floorz;
mine->ceilingz = thismine->ceilingz;
//Since we aren't using P_KillMobj, we need to clean up the hnext reference
{
P_SetTarget(&thismine->target->hnext, NULL); //target is the player who owns the mine
thismine->target->player->kartstuff[k_bananadrag] = 0;
thismine->target->player->kartstuff[k_itemheld] = 0;
if (--thismine->target->player->kartstuff[k_itemamount] <= 0)
thismine->target->player->kartstuff[k_itemtype] = KITEM_NONE;
}
P_RemoveMobj(thismine);
}
else
mine = thismine;