Through the Trap Door: Routine at 37586

37586: Update the states of the spiders (level 1) and store current positions in script data

Used by the routine at 36791.
37586	LD IX,43749	Load IX with address of complex state data for spider 1 (level 1)
37590	LD IY,37580	Load IY with start address of table of current positions in spiders' script data
37594	LD B,3	Load B with 3 as there are 3 spiders
37596	LD L,(IY+0)	Load HL with current position in script data for current spider...
37599	LD H,(IY+1)	...
37602	LD (34277),HL	...and store at 34277 as position in script currently running
37605	PUSH IX	Store IX
37607	PUSH IY	Store IY
37609	PUSH BC	Store BC
37610	CALL 37639	Update the state of the current spider (level 1)
37613	POP BC	Restore BC
37614	POP IY	Restore IY
37616	POP IX	Restore IX
37618	LD HL,(34277)	Store address (current position in script data for current spider) stored at 34277...
37621	LD (IY+0),L	...in table at 37580 as current position in this spider's script data...
37624	LD (IY+1),H	...
37627	INC IY	Advance IY to next entry in table (i.e. position in next spider's script data)...
37629	INC IY	...
37631	LD DE,13	Advance IX by 13 bytes (i.e. to entry for next spider)...
37634	ADD IX,DE	...
37636	DJNZ 37596	Decrease B (remaining number of spiders to process) and loop back to 37596
37638	RET	Return