Knight Lore: Routine at AF88

Used by the routine at START.

Builds the lookup tables, shows the menu, and then does the four things that make a game different from the last one: shuffles which objects the wizard will ask for, chooses a starting room, sets the sun and moon running, and places the special objects. Then it falls into player_dies, which brings Sabreman on exactly as it does after a death.

Three of those choices come from the game seed at $5BA0, and two of them from the same two bits of it: bits 0 and 1 pick the starting room in init_start_location and also how far shuffle_objects_required rotates the wizard's list. So on the first game after loading, the starting room tells you the order the cauldron will ask in. The charms' placing adds the refresh register, so that one is not tied.

Used by the routine at START. Builds the lookup tables, shows the menu, and then does the four things that make a game different from the last one: shuffles which objects the wizard will ask for, chooses a starting room, sets the sun and moon running, and places the special objects. Then it falls into player_dies, which brings Sabreman on exactly as it does after a death. Three of those choices come from the game seed at $5BA0, and two of them from the same two bits of it: bits 0 and 1 pick the starting room in init_start_location and also how far shuffle_objects_required rotates the wizard's list. So on the first game after loading, the starting room tells you the order the cauldron will ask in. The charms' placing adds the refresh register, so that one is not tied.
main	AF88	CALL build_lookup_tbls	the tables at reverse_bits_tbl -- see build_lookup_tbls
	AF8B	XOR A	no room has been played yet, so the first room entry has nothing to save back
	AF8C	LD ($5BB2),A
	AF8F	LD (flags12_1),A	clear byte 12 of the player record saved at plyr_spr_1_scratchpad
	AF92	LD A,$05	five lives; the first pass through player_dies takes one of them
	AF94	LD ($5BBA),A
	AF97	LD HL,$5BA0	stir the frame counter into the game seed; it is zero on the first game after loading
	AF9A	LD A,($5BA2)
	AF9D	ADD A,(HL)
	AF9E	LD (HL),A
	AF9F	CALL clear_scrn	clear the screen
	AFA2	CALL do_menu_selection	the control menu; the seed also goes up by one every time round its loop
	AFA5	LD DE,start_game_tune	the tune that plays as the game starts
	AFA8	CALL play_audio	the tune that plays as the game starts
	AFAB	CALL shuffle_objects_required	rotate the list of objects the cauldron wants
	AFAE	CALL init_start_location	pick one of four starting rooms, and make the player records
	AFB1	CALL init_sun	the sun starts at the left of its frame
	AFB4	CALL init_special_objects	deal the charms and extra lives out to their places