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Additional memory safety for follower handling

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toaster 2023-01-08 16:45:14 +00:00
parent cf609113f3
commit 2aa43f04b2
1 changed files with 6 additions and 10 deletions
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16
src/k_follower.c
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@ -315,7 +315,8 @@ void K_HandleFollower(player_t *player)
// don't do anything if we can't have a follower to begin with. // don't do anything if we can't have a follower to begin with.
// (It gets removed under those conditions) // (It gets removed under those conditions)
if (player->spectator || player->followerskin < 0) if (player->spectator || player->followerskin < 0
|| player->mo == NULL || P_MobjWasRemoved(player->mo))
{ {
if (player->follower) if (player->follower)
{ {
@ -377,12 +378,15 @@ void K_HandleFollower(player_t *player)
// Set follower colour // Set follower colour
color = K_GetEffectiveFollowerColor(player->followercolor, player->skincolor); color = K_GetEffectiveFollowerColor(player->followercolor, player->skincolor);
if (player->follower == NULL) // follower doesn't exist / isn't valid if (player->follower == NULL || P_MobjWasRemoved(player->follower)) // follower doesn't exist / isn't valid
{ {
//CONS_Printf("Spawning follower...\n"); //CONS_Printf("Spawning follower...\n");
// so let's spawn one! // so let's spawn one!
P_SetTarget(&player->follower, P_SpawnMobj(sx, sy, sz, MT_FOLLOWER)); P_SetTarget(&player->follower, P_SpawnMobj(sx, sy, sz, MT_FOLLOWER));
if (player->follower == NULL)
return;
K_UpdateFollowerState(player->follower, fl.idlestate, FOLLOWERSTATE_IDLE); K_UpdateFollowerState(player->follower, fl.idlestate, FOLLOWERSTATE_IDLE);
P_SetTarget(&player->follower->target, player->mo); // we need that to know when we need to disappear P_SetTarget(&player->follower->target, player->mo); // we need that to know when we need to disappear
@ -402,14 +406,6 @@ void K_HandleFollower(player_t *player)
} }
else // follower exists, woo! else // follower exists, woo!
{ {
// Safety net (2)
if (P_MobjWasRemoved(player->follower))
{
P_SetTarget(&player->follower, NULL); // Remove this and respawn one, don't crash the game if Lua decides to P_RemoveMobj this thing.
return;
}
// first of all, handle states following the same model as above: // first of all, handle states following the same model as above:
if (player->follower->tics == 1) if (player->follower->tics == 1)
{ {