Every one of the 132 graphic numbers. An object's graphic, the first byte of its record, is what it is: it picks the sprite it is drawn with, through GRAPHICS, and the update routine the main loop runs for it every turn, through UPDATES (MAIN_NEXT_OBJECT, in AFTER_GAME). There is no separate frame number: a thing animates, turns or becomes something else by changing its own graphic -- a step frame, a sparkle's next frame, a valve seated in its socket. Many graphics share a sprite: the 12 kinds of block are all one picture.

The update table has 131 words, one fewer than the graphic table: graphic 131, the icon beside the count of chambers on the panel, has a sprite and no routine. It is only ever drawn by DISPLAY_PANEL through the spare record at PANEL_RECORD, which the main loop never runs; in a room's records it would send the main loop to the word made of the next two bytes, the first instructions of NO_UPDATE.

They are grouped here by what their routines do. Each line gives the sprite (click it for the sprite), the routine and a line on what it does, and where the graphic comes from: the backgrounds and templates that name it, the panel, the border and the scenes' lists, and the routines that give it to an object. Every graphic number is used by something. Knight Lore has the same two tables, by object type (see Knight Lore's objects).

Graphics 0 and 1 -- The robot -- Appearing and vanishing -- Doorways -- Walls and plain blocks -- Blocks, lifts and conveyors -- Things that kill where they stand -- Creatures -- The remote-controlled robots -- Valves, sockets, cryonauts and extra lives -- The scenes after a game -- The panel and the border

Graphics 0 and 1

Not things: 0 is an empty record, which the main loop still runs (a RET) and nothing draws, and 1 an object on its way out -- a valve picked up, the end of a sparkle -- which the drawing code empties instead of drawing (CALC_PIXEL_XY_AND_RENDER). Both name the empty sprite.

Graphic	Sprite	What it shows	Update routine	Where it comes from
0	$792F		NO_UPDATE: nothing	nothing places it
1				an object on its way out: picked up (TAKE_OR_LEAVE) or at a sparkle's end (SPARKLE_END_PLACE); emptied when next drawn (CALC_PIXEL_XY_AND_RENDER)

The robot

He is two records, legs and top (OBJECTS). The legs' routine does his whole turn, and their graphic is his facing and his step: bit 2 picks the view from behind (facing lower U or V, away from the viewer) or from the front, bits 0-1 the step frame, and the mirror flag the other two facings (HANDLE_LEFT_RIGHT). A quarter turn passes through an in-between view, 24 to 27, held for two turns -- Alien 8's own. The top copies the legs every turn, its graphic theirs plus 16. See how the robot moves and turns.

Graphic	Sprite	What it shows	Update routine	Where it comes from
16	$9C7B	the robot's legs	PLAYER_LEGS: his whole turn: controls, taking, turning, jumping, stepping, moving	the legs' step frames (HANDLE_FORWARD) and a turn's end (TURN_RIGHT_ENDS, TURN_LEFT_ENDS)
17	$9D8F
18	$9EA3
19	$9D8F
20	$993F
21	$9A53
22	$9B67			the legs and the top as a game starts (NEW_GAME_START); the legs' step frames (HANDLE_FORWARD) and a turn's end (TURN_RIGHT_ENDS, TURN_LEFT_ENDS)
23	$9A53			the legs' step frames (HANDLE_FORWARD) and a turn's end (TURN_RIGHT_ENDS, TURN_LEFT_ENDS)
24	$971F	the robot's legs, from behind	TURNING_LEGS: holds the in-between view two turns, then the new facing	the in-between view of a turn (TURN_RIGHT_VIEWS, TURN_LEFT_VIEWS)
25	$9613	the robot's legs, from the front
26	$982B	the robot's legs, side-on
27
32	$9D05	the robot's top	TOP_FOLLOWS_LEGS: sits on the legs, their graphic plus 16	the top: the legs' graphic plus 16 (TOP_FOLLOWS_LEGS)
33	$9E19
34	$9F2D
35	$9E19
36	$99C9
37	$9ADD
38	$9BF1			the legs and the top as a game starts (NEW_GAME_START); the top: the legs' graphic plus 16 (TOP_FOLLOWS_LEGS)
39	$9ADD			the top: the legs' graphic plus 16 (TOP_FOLLOWS_LEGS)
40	$97A9	the robot's top, from behind
41	$969D	the robot's top, from the front
42	$98B5	the robot's top, side-on
43

Appearing and vanishing

A frame a turn: 48 to 55 is the sparkle he dies in, 56 to 63 the same sprites the other way round as he appears, keeping his real graphic at +$10, and 64 and 65 the short vanish of a collapsing block or an extra life. The sparkle's sprites are shared with the sockets' sparkle and the chaser.

Graphic	Sprite	What it shows	Update routine	Where it comes from
48	$A2C3	a sparkle, largest	SPARKLE_STEP: the next frame, with a shorter sound each time	his death: the first frame of the sparkle (START_SPARKLE)
49	$A231	a sparkle		the sparkle's next frame (SPARKLE_STEP)
50	$A2C3	a sparkle, largest
51	$A231	a sparkle
52	$A19F
53	$A113
54	$A093			the sparkle's next frame (SPARKLE_STEP); a thing that breaks, when moved (FRAGILE)
55	$A019	a sparkle, smallest	SPARKLE_END, in SPARKLE_END_PLACE: the last frame: emptied when next drawn	the sparkle's next frame (SPARKLE_STEP)
56			PLAYER_APPEARING: the next frame every other turn	the robot appearing: at a new life (NEW_LIFE), and through a doorway (the end of EXIT_LOW_U)
57	$A093	a sparkle		the appearing's next frame (PLAYER_APPEARING)
58	$A113
59	$A19F
60	$A231
61	$A2C3	a sparkle, largest
62	$A231	a sparkle
63	$A2C3	a sparkle, largest	PLAYER_APPEARED: back to his real graphic, and its routine at once
64			SPARKLE_STEP: the next frame, with a shorter sound each time	an extra life touched (EXTRA_LIFE), or a block landed on (COLLAPSING_BLOCK)
65	$A231	a sparkle	SPARKLE_END_PLACE: empties its place for good, then the record	the vanish's second frame (SPARKLE_STEP)

Doorways

Each doorway is two pillars from one background: the first marks him as in the doorway and nudges him onto its middle line, the second only draws. See rooms and doorways.

Graphic	Sprite	What it shows	Update routine	Where it comes from
2	$8EE7	a doorway's pillar	FIRST_PILLAR: the doorway: lets him through the wall and steers him to its middle	background 0, 1, 2, 3, 10, 11
3	$8FE1	a doorway's other pillar, with the top of the frame	SECOND_PILLAR: sets its drawing nudge

Walls and plain blocks

The whole update routine is to set the nudge that lines the sprite up with the position (+$12 and +$13); nothing about the thing changes, so it is never redrawn unless something passes in front of it.

Graphic	Sprite	What it shows	Update routine	Where it comes from
13	$9103	a long panel of a hexagon-tiled wall	DRAW_AT_L12_D7: sets its drawing nudge	background 4, 5, 6, 7, 8, 9
14	$9FB7	the narrow end of the wall	DRAW_AT_L4_D3: sets its drawing nudge	background 4, 5, 8, 9
15	$9255	a short panel of the wall	DRAW_AT_L8_D5: sets its drawing nudge	background 8, 9
30	$8C9B	a plain block	DRAW_AT_L16_D9: sets its drawing nudge	background 12, 13; object template 1 (91 rooms)

Blocks, lifts and conveyors

Blocks that can be pushed, that sink or vanish when stood on, that lift a rider or bob by themselves, that shuttle to and fro, and the conveyors, which never move but give what stands on them their step (ADJ_DZ_FOR_OBJ_INTERSECT). Knight Lore's movers, mostly, with their names.

Graphic	Sprite	What it shows	Update routine	Where it comes from
28	$8AD7	a block with a raised round top	PUSHABLE: falls; a push moves it once	object template 2 (19 rooms)
29	$8BC1	a block tapering to the bottom	PUSHABLE_INVERTED: falls; a push moves it once	object template 3 (13 rooms)
31	$8C9B	a plain block	BOBBER, in LIFT: falls, then rises two a turn to where it began, over and over	object template 4 (9 rooms)
44			DROPPING_BLOCK: sinks a unit a turn while something stands on it	object template 5 (9 rooms)
45			COLLAPSING_BLOCK: vanishes in a sparkle when landed on	object template 6 (38 rooms)
47			LIFT: carries a rider up 48, and back down	object template 12 (6 rooms)
66			SHUTTLE_U: shuttles 16 units to and fro in U, with the turn counter	object template 13 (2 rooms)
67			SHUTTLE_V: shuttles 16 units to and fro in V, with the turn counter	object template 14 (4 rooms)
68			CONVEYOR_PLUS_V: carries what stands on it forwards in V, two a turn	object template 8 (8 rooms)
69			CONVEYOR_PLUS_U: carries what stands on it forwards in U, two a turn	object template 9 (8 rooms)
70			CONVEYOR_MINUS_V: carries what stands on it back in V, two a turn	object template 10 (7 rooms)
71			CONVEYOR_MINUS_U: carries what stands on it back in U, two a turn	object template 11 (5 rooms)

Things that kill where they stand

Deadly both ways (MAKE_DEADLY, in SPIKES): whatever touches them, or whatever they touch, dies.

Graphic	Sprite	What it shows	Update routine	Where it comes from
46	$8821	a crown of spikes on a base	SPIKES: deadly both ways; never moves	object template 7 (36 rooms)
72	$950B	a pyramid	STILL_DEADLY: deadly both ways; never moves	object template 15 (30 rooms)
75	$8E1D	three cylinders on a plate		object template 23 (27 rooms)

Creatures

All deadly both ways but the spark chaser, which only pushes. The wanderer and the pacers walk on a lower half of their own (graphic 11), which follows them 12 below; the others are one record each. See the clock, the remote robots and the dangers.

Graphic	Sprite	What it shows	Update routine	Where it comes from
11	$874B	a creature's lower half	LOWER_HALF: stays 12 under the creature above it	object template 17 (6 rooms), 18 (1 room), 19 (2 rooms)
73	$87AD	a spiked dome	CEILING_DROP: deadly; hangs, then drops at random	object template 20 (4 rooms)
76	$A2C3	a sparkle, largest	SPARK_CHASER: heads for him four a turn, cycling its frames; harmless	object template 16 (6 rooms)
77	$A231	a sparkle		the chaser's next frame (SPARK_CHASER)
78	$A19F
79	$A231
86	$8A3F	a bug-eyed creature	PACER: deadly; walks to and fro along one axis	object template 18 (1 room); a creature turning: bit 0 of the graphic is half its facing (TURN_QUARTER, FACE_ALONG_STEP)
87	$8D85	a bug-eyed creature, the other view		object template 19 (2 rooms); a creature turning: bit 0 of the graphic is half its facing (TURN_QUARTER, FACE_ALONG_STEP)
94	$8A3F	a bug-eyed creature	WANDERER: deadly; walks, turning a quarter at random when stopped	object template 17 (6 rooms); a creature turning: bit 0 of the graphic is half its facing (TURN_QUARTER, FACE_ALONG_STEP)
95	$8D85	a bug-eyed creature, the other view		a creature turning: bit 0 of the graphic is half its facing (TURN_QUARTER, FACE_ALONG_STEP)
116	$8117	a clockwork mouse	CLOCKWORK_MOUSE: deadly; runs straight, turns a quarter at random	object template 28 (7 rooms)
117	$81B5			a mouse's frames and turns (CLOCKWORK_MOUSE)
118	$8079
119	$8253
120	$82F1	a domed column of rings	SLOW_CHASER: deadly; homes in on him a unit a turn	object template 29 (2 rooms)
121	$83A7			the chaser's other frame (SLOW_CHASER)
129	$7BC5	a round thing with prongs	FRAGILE: deadly; breaks when anything moves it	object template 38 (7 rooms)
130	$7B0B	a spiky ball	LEAPER: deadly; now and then leaps 48 up and falls back	object template 39 (3 rooms)

The remote-controlled robots

Alien 8's own: four buttons and a pad in a room steer the little robots in it, which are harmless and push what the robot cannot touch.

Graphic	Sprite	What it shows	Update routine	Where it comes from
122	$7EA5	a box with an arrow on its lid	REMOTE_BUTTON: while stood on, orders the robot in control one way	object template 33 (8 rooms), 34 (8 rooms)
123	$7F8F	a box with an arrow on its lid, the other way		object template 35 (8 rooms), 36 (8 rooms)
124	$7C5D	a little domed robot with feelers	REMOTE_ROBOT: walks where the buttons say; harmless, pushes things	object template 30 (8 rooms)
125	$7CEF			a remote robot's frames as it walks (REMOTE_ROBOT)
126	$7D81
127	$7E13
128	$8C9B	a plain block	REMOTE_PAD: while stood on, orders the robot in control to stand	object template 37 (8 rooms)

Valves, sockets, cryonauts and extra lives

The things of the quest: the four kinds of valve, dealt to the 36 places at PLACES at every new game with two or three extra lives among them; the socket of each chamber with its sparkle, which now and then shows the valve it wants; a valve once seated; and the frozen crew. A valve's four graphics each share one sprite: loose, seated and pictured. The four sockets share one sprite too, so what tells a chamber's kind is the valve its sparkle shows (SOCKET_SPARKLE). See valves, sockets and the cryogenic chambers.

Graphic	Sprite	What it shows	Update routine	Where it comes from
12	$95CD	a little robot	EXTRA_LIFE: a life when he touches it, gone for good; falls	the panel (PANEL_DATA, 1 entry); dealt to the places at every new game (INIT_SPECIAL_OBJECTS)
74	$897D	a frozen spaceman	CRYONAUT: stands frozen; sets its drawing nudge	object template 21 (20 rooms), 22 (13 rooms)
96	$A41F	a valve: a drum on feet	LOOSE_VALVE: falls, can be carried; in its chamber seats itself and activates it	dealt to the places at every new game (INIT_SPECIAL_OBJECTS); drawn on the panel while carried (SHOW_CARRIED)
97	$A4B1	a valve: a cube on feet
98	$A53D	a valve: a point on feet
99	$A5B1	a valve: a ball on feet
100	$A41F	a valve: a drum on feet	SEATED_VALVE: stays put: the chamber is activated	a valve seated in its socket: its graphic plus 4 (LOOSE_VALVE)
101	$A4B1	a valve: a cube on feet
102	$A53D	a valve: a point on feet
103	$A5B1	a valve: a ball on feet
104	$A41F	a valve: a drum on feet	WANTED_VALVE: shows the valve wanted for two turns, then the sparkle	the sparkle showing the valve wanted: its graphic less 4 (SOCKET_SPARKLE)
105	$A4B1	a valve: a cube on feet
106	$A53D	a valve: a point on feet
107	$A5B1	a valve: a ball on feet
108	$A19F	a sparkle	SOCKET_SPARKLE: sparkles over the socket; now and then shows the valve wanted	object template 24 (6 rooms); the sparkle again after the picture (WANTED_VALVE), or brought back (SOCKET)
109	$A231			object template 25 (6 rooms); the sparkle again after the picture (WANTED_VALVE), or brought back (SOCKET)
110	$A2C3	a sparkle, largest		object template 26 (6 rooms); the sparkle again after the picture (WANTED_VALVE), or brought back (SOCKET)
111	$A231	a sparkle		object template 27 (6 rooms); the sparkle again after the picture (WANTED_VALVE), or brought back (SOCKET)
112	$A355	a domed socket on a plinth	SOCKET: brings the sparkle back once the room's valves are gone	object template 24 (6 rooms)
113				object template 25 (6 rooms)
114				object template 26 (6 rooms)
115				object template 27 (6 rooms)

The scenes after a game

Placed by SET_UP_SCENE from the lists at SCENE_LOST (a lost game: the robot re-programmed by a glove, a hammer and a hook) and SCENE_WON (a won game: the robot lowered into oil), at pixel places rather than in the room, and run by the main loop with GAME_OVER set, which stops the projection. Each paints its own attribute cells.

Graphic	Sprite	What it shows	Update routine	Where it comes from
80	$8571	sparks	SCENE_SPARKS: flashes sixteen times, then lets the tools swing	the scene after a lost game (SCENE_LOST)
81	$84DF	a glove	SCENE_TOOL: swings at the robot at random; fifteen swings end the scene
82	$845D	a hammer
83	$85B5	a hook
85	$79AB	a tub of oil, on feet	COLOUR_SCENE_OBJECT, in SCENE_SPARKS: colours the cells it covers	the scene after a won game (SCENE_WON)
88	$8661	a piece of the robot's stand		the scene after a lost game (SCENE_LOST)
89	$8693
90	$9613	the robot's legs, from the front
91	$969D	the robot's top, from the front
92	$9613	the robot's legs, from the front	OILED_ROBOT: lowered into the oil and raised again, white	the scene after a won game (SCENE_WON)
93	$969D	the robot's top, from the front	SCENE_ROBOT_TOP: keeps 16 pixels above the legs

The panel and the border

Drawn through the spare record at PANEL_RECORD, never in a room: the panel's scroll-work and icons at the foot of the screen (DISPLAY_PANEL) and the border round the menu and the end screens (PRINT_BORDER).

The panel as the game draws it on the first turn in a room -- here a room with nothing in it but a back wall -- read from the screen buffer with the attributes COLOUR_PANEL gives it: the light years a few turns into a game, the last digit part way through its roll (RUN_CLOCK); DISPLAY_PANEL's scroll-work and icons; and the lives and the count of chambers. The label is red because the room's ink is white, as an activated chamber's is; in a room of any other colour it is yellow, cyan, green or magenta. The robot beside the lives is graphic 12, the extra life. Below, the border as PRINT_BORDER draws it on a cleared buffer, in the menu's red.

Graphic	Sprite	What it shows	Update routine	Where it comes from
4	$9327	a corner of the border	NO_UPDATE: nothing	the border of the text screens (BORDER_DATA)
5	$945B	a length of the border's sides, one pixel high
6	$9429	a length of the border's top and bottom
7	$9475	a piece of the panel's scroll-work		the panel (PANEL_DATA, 2 entries)
8	$94A7
9	$94E9	a slanting line: the panel's slope
10	$9463	a small square: the panel's edge
84	$86C5	half of the frame round the light years
131	$7931	a small domed pod on a round base	none: the table ends at graphic 130	the panel (PANEL_DATA, 1 entry)