0000163: zscript - checksight return random values with some actors

ID	Project	Category	View Status	Date Submitted	Last Update

0000163	Gameplay + OpenGL	[All Projects] Bug	public	2017-02-02 14:42	2017-02-02 17:57

Reporter	ibm5155
Assigned To
Priority	normal	Severity	minor	Reproducibility	always
Status	closed	Resolution	no change required

Summary	0000163: zscript - checksight return random values with some actors
Description	On the process of converting my code from acs+decorate to zscript, I noted that raycast were acting like crazy, and so I did an isolated case and I figure out that the problem wass the checksight function with some specific actors... Idk what's going on, I belive since all the actors in that test map aren't moving, the return from that funcion should Always be zero or one, but instead, it's a random bool value.
Steps To Reproduce	-Download this wad:http://www.mediafire.com/file/c5pmd9iyf9sjt5a/zscript_checksight_bug.zip -load both wads and start the game with skill 1. You'll see that there're 0s and 1s on the top of screen, and it's WRONG, because both actors can see each other. -restart the map on the third level difficult from doom 2, and you'll see that those numbers are now Always 1.
Tags	No tags attached.

ibm5155 2017-02-02 14:47 reporter ~0000330	And the problem is with zscript version. Using the acs checksight with a loop will show 1 Always: http://i.imgur.com/kPc3XOF.png (the acs is the acs version of checksight and the number only is the zscript logint)

Graf Zahl 2017-02-02 16:11 administrator ~0000334	No bug here. If you want to get reliable results for invisible things you have to pass SF_IGNOREINVISIBILITY for the flags parameter.

ibm5155 2017-02-02 16:46 reporter ~0000335	Wait a little. I'm trying the gzdoom-x64-g2.4pre-310-gbecc00a version, and just replaced the. return CheckSight(Act); by return CheckSight(Act,SF_IGNOREINVISIBILITY); But, gzdoom says: `Script error, "testobj.wad:ZSCRIPT" line 40: Unknown identifier 'SF_IGNOREINVISIBILITY' Execution could not continue. 1 errors while parsing DECORATE scripts` And I'm quite lost because I didn't found any kind of info about "SF_IGNOREINVISIBILITY" over the wiki neither the fórum O_o

Date Modified	Username	Field	Change
2017-02-02 14:42	ibm5155	New Issue
2017-02-02 14:47	ibm5155	Note Added: 0000330
2017-02-02 16:11	Graf Zahl	Note Added: 0000334
2017-02-02 16:11	Graf Zahl	Status	new => closed
2017-02-02 16:11	Graf Zahl	Resolution	open => no change required
2017-02-02 16:46	ibm5155	Note Added: 0000335