Avalon: Routine at 51359

51359: Deal with and check room item, creature or scenery

Used by the routine at 51255.
The first byte of the working data set at 60227 (this data is copied from each of the 16 byte room item data sets at 31744) is checked here. It indicates the type of room object that needs to be drawn, checked or generally dealt with.
51359	LD A,(60227)
51362	CP 1	Back wall bricks/scenery, or door frames, wall/floor connector graphics or cursor
51364	JP Z,53885
51367	CP 2	Door
51369	JP Z,51420	Door
51372	CP 3	Creature
51374	JP Z,52616	Creature
51377	CP 4	Interactable objects (e.g. key, chest, scroll)
51379	JP Z,51968	Interactable objects (e.g. key, chest, scroll)
51382	CP 5	Missile fired by creature/warlock
51384	JP Z,53403	Missile fired by creature/warlock
51387	CP 6	Vertical back wall/floor connector (left)
51389	JP Z,53601	Vertical back wall/floor connector (left)
51392	CP 7	Vertical back wall/floor connector (right)
51394	JP Z,53616	Vertical back wall/floor connector (right)
51397	CP 8	Missile fired by Maroc
51399	JP Z,53403	Missile fired by Maroc
51402	CP 15	Tunnel position (& direction)
51404	JP Z,53625	Tunnel position (& direction)
51407	CP 14	Tunnel item (side boundary wall, bat or spider)
51409	JP Z,53714	Tunnel item (side boundary wall, bat or spider)
51412	CP 32	Room position & viewport
51414	JP Z,53870	Room position & viewport
51417	JP 53885	Jump from here if nothing to deal with. Data set room items that are no longer present (e.g. a destroyed creature) will have this byte set to 0 to indicate they no longer exist.