Pentagram: Routine at 46702

46702: Resolve Object Order

The routines selected by the table at SortJumpTable, once DrawObjectsInOrder has compared two objects. IX holds the object that is being considered and IY holds the object that it has been compared with.
The order of the objects is not known, so look at the next object.
ResolveObjectOrder	46702	JP DrawObjectsInOrder_NextOther	Jump to DrawObjectsInOrder_NextOther to compare the object considered with the next object in the list.
The object considered is behind the other, so it needs no wait: look at the next object.
ResolveObjectOrder_Behind	46705	JP DrawObjectsInOrder_NextOther	Jump to DrawObjectsInOrder_NextOther to compare the object considered with the next object in the list.
The object considered is in front of the other so it must be drawn after it. Make the other one the object that is being considered, unless it has already been tried, and so is part of a loop.
ResolveObjectOrder_InFront	46708	LD HL,(42779)	Fetch the list pointer, which is just after the entry of the other object.
	46711	DEC HL	Point HL at the entry.
	46712	LD C,(HL)	Fetch the number of the object in C.
	46713	LD DE,46797	Point DE at the list of the objects that have been tried, ObjectsTriedList.
ResolveObjectOrder_FindTried	46716	LD A,(DE)	Fetch the next number in the list of the objects tried.
	46717	CP 255	Jump to ResolveObjectOrder_AddTried if the end of that list has been reached.
	46719	JR Z,ResolveObjectOrder_AddTried
	46721	CP C	Jump to ResolveObjectOrder_Loop if the object has already been tried, which means that there is a loop.
	46722	JR Z,ResolveObjectOrder_Loop
	46724	INC DE	Move on in the list.
	46725	JR ResolveObjectOrder_FindTried	Jump to ResolveObjectOrder_FindTried to look at the next number.
Add the object to the list of the objects tried.
ResolveObjectOrder_AddTried	46727	LD A,C	Fetch the number of the object.
	46728	LD (DE),A	Add it to the list.
	46729	INC DE	Move on in the list.
	46730	LD A,255	Set A to 255.
	46732	LD (DE),A	Mark the end of the list.
Make the other object the one that is considered and start the search again from the top of the list.
	46733	PUSH IY	Copy IY to IX (using the stack).
	46735	POP IX	Copy IY to IX (using the stack).
	46737	LD HL,(42779)	Fetch the list pointer.
	46740	LD (42777),HL	Make it the pointer to the entry of the object that is considered.
	46743	LD DE,46426	Point DE at the start of the draw list, DrawList.
	46746	JP DrawObjectsInOrder_NextOther	Jump to DrawObjectsInOrder_NextOther to compare the object with the others.
The object has been tried before, so there is a loop. Draw it, to break the loop, once its place in the list has been found.
ResolveObjectOrder_Loop	46749	LD HL,46426	Point HL at the start of the draw list, DrawList.
ResolveObjectOrder_FindEntry	46752	LD A,(HL)	Fetch the next number from the list.
	46753	INC HL	Fetch the next number from the list.
	46754	CP 255	Jump to DrawObjectsInOrder_Restart if the end of the list has been reached.
	46756	JP Z,DrawObjectsInOrder_Restart
	46759	CP C	Jump to ResolveObjectOrder_FindEntry if it is not the entry of the object.
	46760	JR NZ,ResolveObjectOrder_FindEntry
	46762	PUSH IY	Copy IY to IX (using the stack).
	46764	POP IX	Copy IY to IX (using the stack).
	46766	JR ResolveObjectOrder_DrawEntry	Jump to ResolveObjectOrder_DrawEntry to draw the object.
The two objects overlap completely, so look at the next object.
ResolveObjectOrder_Overlap	46768	JP DrawObjectsInOrder_NextOther	Jump to DrawObjectsInOrder_NextOther to compare the object considered with the next object in the list.
This entry point is used by the routine at DrawObjectsInOrder. Nothing has to be drawn before the object considered, so draw it now.
ResolveObjectOrder_Draw	46771	LD HL,(42777)	Fetch the pointer to the entry of the object in the list.
ResolveObjectOrder_DrawEntry	46774	DEC HL	Point HL at the entry.
	46775	SET 7,(HL)	Set bit 7 of the entry, to show that the object has been drawn.
	46777	LD A,255	Set A to 255.
	46779	LD (46797),A	Empty the list of the objects that have been tried.
	46782	LD HL,42772	Point HL at the count of the objects drawn, DrawingWorkCount.
	46785	INC (HL)	Count the object.
	46786	CALL DrawObject	Call DrawObject to draw the object.
	46789	JP DrawObjectsInOrder_Restart	Jump to DrawObjectsInOrder_Restart to look for the next object to draw.
This entry point is used by the routine at DrawObjectsInOrder. All the objects have been drawn.
ResolveObjectOrder_Done	46792	POP IY	Restore IY and IX from the stack.
	46794	POP IX	Restore IY and IX from the stack.
	46796	RET	Return.