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Fix invalid access reading demos

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Fixes: 74dfa29d31 ("Convert most Trigger references to valptridx")
This commit is contained in:
Kp 2016-02-14 18:40:57 +00:00
parent e36abb25cb
commit 90de22b2a5
1 changed files with 6 additions and 2 deletions
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8
similar/main/newdemo.cpp
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@ -2181,12 +2181,16 @@ static int newdemo_read_frame_information(int rewrite)
/* Demo recording is buggy. Descent records
* ND_EVENT_TRIGGER for every segment transition, even
* if there is no wall.
*
* Likewise, ND_EVENT_TRIGGER can be recorded
* when the wall is valid, but there is no
* trigger on the wall.
*/
if (segp->sides[side].wall_num != wall_none)
{
#if defined(DXX_BUILD_DESCENT_II)
const auto &&t = vctrgptr(vcwallptr(segp->sides[side].wall_num)->trigger);
if (t->type == TT_SECRET_EXIT)
auto &w = *vcwallptr(segp->sides[side].wall_num);
if (w.trigger != trigger_none && vctrgptr(w.trigger)->type == TT_SECRET_EXIT)
{
int truth;