Doomsday Engine

Tested under 1.8.6 and Beta5.x and consulted with Dani who deemed it something worthy of posting here.

Attached is an example map wad containing an in wad line_active xg def.

In the example line A is a chain def checking once a second whether all lines with a certain tag are active before it will activate itself. In this case the tag being checked is 50 and there are two lines with a tag of 50 (B+C). These two lines have xg def's on them that have a time value of -1 so they will never deactivate once activated.

Once lines B+C are activated, Line A should activate and it's chain should change the line type on line marked by the Skull switch to a player_use activated end_level def (Line D).

However, the problem is that Line A is never activating for some reason. Checking what is going on in game with XG-Dev1 in 1.9 Beta5 reveals this;

XL_TraverseLines: Line 1, ref (NONE : 50)
Line 1: ABORTING EVENT due to line_active test

1. Walls to shot (Lines B+C)

Line Type {
ID = 1000;
Flags = "ltf_other_shoot ltf_player_shoot ltf_missile_hit_a";
Flags2 = "ltf2_when_act ltf2_any";
Class = "ltc_wall_texture";
Type = "lat_timed_off";
Count = 1;
Time = -1;
Ip0 = "lref_self";
Ip3 = "ZZWOLF5";
Ip4 = "ZZWOLF5";
Ip5 = "ZZWOLF5";
}

1. XG def on Line D before Line A has changed it

Line Type {
ID= 1001;
Comment = "Exit Switch Before Wall Shot";
Count=-1;
Class = command
Flags = player_use_a
Flags2 = when_act | any
Time=0.75;
Act Message = "You haven't shot the walls";
Act sound = "radio"
}

1. Activate this Chain def when all lines with a tag of 50 are activated (Line A). Doesn't seem to work

Line Type {
ID= 1500
Class = chain_sequence
Count = 1
Type = timed_off
Flags = ticker
Flags2 = "ltf2_when_act ltf2_any ltf2_line_act";
Time = -1
Ticker Tics = 35
Ip0 = done_d
Ip1 = 1501
Ap4 = lref_tagged
Ap5 = 50
}

Line Type {
ID= 1501;
Comment = "Make Exit Switch work";
Count= 1;
Class = line_type
Type= timed_off
Flags2 = "ltf2_when_act ltf2_any";
Time= 1;
Ip0 = "lref_tagged"
Ip1 = 30
Ip2 = 1502;
}

1. End Level def placed on Line D by Line A once it activates

Line Type {
ID = 1502;
Flags2 = "ltf_player_use ltf2_when_act ltf2_any";
Class = "ltc_end_level";
Count = 1;
Time = -1;
Ip5 = "1";
}

Labels: XG