05919: thoop: Sprite priority bugs with background objects

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
05919	Graphics	Minor	Always	Apr 12, 2015, 21:38	Dec 1, 2021, 23:41

Tester	izius	View Status	Public	Platform	MAME (Official Binary)
Assigned To	Haze	Resolution	Fixed	OS
Status [?]	Resolved			Driver	gaelco/gaelco.cpp
Version	0.160	Fixed in Version	0.239	Build
		Fixed in Git Commit	22fd521	Github Pull Request #

Summary	05919: thoop: Sprite priority bugs with background objects
Description	I seem to recall a few points in which the background objects should cover the sprites. See the attached file section for details.
Steps To Reproduce	Reach the parts listed below. Level 1: 1) roughly 1/3 of the level - the lake of acid with the rising/lowering platforms; 2) roughly halfway the level - the part with the dashing red demons on the grate; 3) the end of level boss, upon entering its room; 4) after defeating the boss, when the character jumps in the sewers; 5) the screen after level complete. Level 4: 6) roughly 3/4 of the level - the part with the trees in foreground and the monsters that rise from the terrain.
Additional Information	Marked as possible, since I found no PCB videos on the internet, and it's been 20+ years since I last played a thoop machine. EDIT: finally found a PCB video; removed the Possible flag (still not sure about point #6, but all the others are confirmed).
Github Commit

Flags	Verified with Original
Regression Version
Affected Sets / Systems	thoop

Attached Files	0000.png (14,166 bytes) Apr 12, 2015, 21:38 Uploaded by izius The platforms shouldn't be visible below the acid level
	0001.png (11,583 bytes) Apr 12, 2015, 21:39 Uploaded by izius The red monsters should be partially hidden behind the purple grate
	0002.png (12,050 bytes) Apr 12, 2015, 21:40 Uploaded by izius The 1st boss should be completely hidden by the red container (and thus invisible) when you arrive in its room
	0003.png (10,736 bytes) Apr 12, 2015, 21:41 Uploaded by izius After defeating the 1st boss, the character should be hidden by the background when jumping thru the container
	0004.png (14,604 bytes) Apr 12, 2015, 21:42 Uploaded by izius The red cross should be possibly over the number
	0005.png (25,279 bytes) Apr 12, 2015, 21:43 Uploaded by izius The tree should possibly cover the character, and the monster should possibly be covered by the ground

No.12508 Osso Moderator Apr 3, 2016, 07:25	FWIW switching from screen_update_maniacsq to screen_update_bigkarnk fixes all the problems but nr. 2.
No.17224 MetalGod Senior Tester Nov 28, 2019, 20:50 edited on: Nov 28, 2019, 21:37	This french guy claims to be playing in a pcb, he even mention some technical stuff related to the pcb.... but his gameplay shows the same issues mentioned in this report. Could MAME be missing a newer version of the game with those issues resolved?
No.17225 Haze Senior Tester Nov 29, 2019, 16:34 edited on: Nov 29, 2019, 16:37	I think it's more likely something is broken / incorrectly replaced on his PCB. We've seen plenty of PCB videos without the glitches, but showing the same bootup versions. (or he's actually just showing a PCB and recording from MAME in this instance, even if he claims otherwise)
No.17226 MetalGod Senior Tester Nov 29, 2019, 21:01 edited on: Nov 29, 2019, 21:02	Ok. On the other hand, Osso said in his comment that there's a way to fix the most of the issues.
No.19515 MetalGod Senior Tester Dec 1, 2021, 23:38 edited on: Dec 1, 2021, 23:39	I've tested this on a WIP version of MAME. It is all fixed, including level four priorities. Fixed by Haze