dos33fsprogs/games/lemm/level1.s
Vince Weaver 26bc0e7bc4 lemm: some fixes to music
should handle the song-dong-early case now

also bump down to loading at $9000
loading right up against $BF00/$C000 was having bit flips in qboot?
still need to investigate that
2022-03-19 21:48:03 -04:00

331 lines
4.5 KiB
ArmAsm

.include "zp.inc"
.include "hardware.inc"
.include "qload.inc"
.include "lemm.inc"
.include "lemming_status.inc"
.byte 1 ; level 1
do_level1:
;==============
; set up stuff
;==============
lda #9
sta DOOR_X
lda #36
sta DOOR_Y
lda #12
sta INIT_X
lda #45
sta INIT_Y
; flame locations
lda #31 ; 217
sta l_flame_x_smc+1
lda #108
sta l_flame_y_smc+1
sta r_flame_y_smc+1
lda #35 ; 245
sta r_flame_x_smc+1
; door exit location
lda #31 ;
sta exit_x1_smc+1
lda #35
sta exit_x2_smc+1
lda #116
sta exit_y1_smc+1
lda #127
sta exit_y2_smc+1
;==============
; set up intro
;==============
lda #<level1_preview_lzsa
sta level_preview_l_smc+1
lda #>level1_preview_lzsa
sta level_preview_h_smc+1
;==============
; set up music
;==============
lda #0
sta CURRENT_CHUNK
sta DONE_PLAYING
sta BASE_FRAME_L
sta BUTTON_LOCATION
; set up first song
lda #<music5_parts_l
sta chunk_l_smc+1
lda #>music5_parts_l
sta chunk_l_smc+2
lda #<music5_parts_h
sta chunk_h_smc+1
lda #>music5_parts_h
sta chunk_h_smc+2
lda #$D0
sta CHUNK_NEXT_LOAD ; Load at $D0
jsr load_song_chunk
lda #$D0 ; music starts at $d000
sta CHUNK_NEXT_PLAY
sta BASE_FRAME_H
lda #1
sta LOOP
sta CURRENT_CHUNK
;=======================
; show title screen
;=======================
; lda #1
; sta WHICH_LEVEL
jsr intro_level
;=======================
; Load Graphics
;=======================
lda #$20
sta HGR_PAGE
jsr hgr_make_tables
bit SET_GR
bit PAGE0
bit HIRES
bit FULLGR
lda #<level1_lzsa
sta getsrc_smc+1 ; LZSA_SRC_LO
lda #>level1_lzsa
sta getsrc_smc+2 ; LZSA_SRC_HI
lda #$20
jsr decompress_lzsa2_fast
lda #<level1_lzsa
sta getsrc_smc+1 ; LZSA_SRC_LO
lda #>level1_lzsa
sta getsrc_smc+2 ; LZSA_SRC_HI
lda #$40
jsr decompress_lzsa2_fast
;=======================
; Setup cursor
;=======================
lda #0
sta OVER_LEMMING
lda #10
sta CURSOR_X
lda #100
sta CURSOR_Y
;=======================
; Init Lemmings
;=======================
lda #0
sta lemming_out
sta lemming_exploding
lda #12
sta lemming_x
lda #45
sta lemming_y
lda #1
sta lemming_direction
lda #LEMMING_FALLING
sta lemming_status
;=======================
; Play "Let's Go"
;=======================
jsr play_letsgo
;=======================
; start music
;=======================
; cli
;=======================
; init vars
;=======================
lda #0
sta LEVEL_OVER
sta DOOR_OPEN
sta FRAMEL
sta LOAD_NEXT_CHUNK
sta JOYSTICK_ENABLED
sta LEMMINGS_OUT
jsr update_lemmings_out
lda #1
sta LEMMINGS_TO_RELEASE
; jsr save_bg_14x14 ; save initial bg
; set up time
lda #$5
sta TIME_MINUTES
lda #$00
sta TIME_SECONDS
sta TIMER_COUNT
;===================
;===================
; Main Loop
;===================
;===================
l1_main_loop:
;=========================
; load next chunk of music
; if necessary
;=========================
jsr load_music
lda DOOR_OPEN
bne l1_door_is_open
jsr draw_door
l1_door_is_open:
;======================
; release lemmings
;======================
lda LEMMINGS_TO_RELEASE
beq l1_done_release_lemmings
lda DOOR_OPEN
beq l1_done_release_lemmings
lda FRAMEL
and #$f
bne l1_done_release_lemmings
inc LEMMINGS_OUT
jsr update_lemmings_out
lda #1
sta lemming_out
dec LEMMINGS_TO_RELEASE
l1_done_release_lemmings:
jsr draw_flames
lda TIMER_COUNT
cmp #$50
bcc l1_timer_not_yet
jsr update_time
lda #$0
sta TIMER_COUNT
l1_timer_not_yet:
; main drawing loop
jsr erase_lemming
jsr erase_pointer
jsr move_lemmings
jsr draw_lemming
jsr handle_keypress
jsr draw_pointer
lda #$ff
jsr wait
inc FRAMEL
lda LEVEL_OVER
bne l1_level_over
jmp l1_main_loop
l1_level_over:
; bit SET_TEXT
jsr disable_music
jsr outro_level1
rts
.include "graphics/graphics_level1.inc"
music5_parts_h:
.byte >lemm5_part1_lzsa,>lemm5_part2_lzsa,>lemm5_part3_lzsa
.byte >lemm5_part4_lzsa,>lemm5_part5_lzsa,$00
music5_parts_l:
.byte <lemm5_part1_lzsa,<lemm5_part2_lzsa,<lemm5_part3_lzsa
.byte <lemm5_part4_lzsa,<lemm5_part5_lzsa
lemm5_part1_lzsa:
.incbin "music/lemm5.part1.lzsa"
lemm5_part2_lzsa:
.incbin "music/lemm5.part2.lzsa"
lemm5_part3_lzsa:
.incbin "music/lemm5.part3.lzsa"
lemm5_part4_lzsa:
.incbin "music/lemm5.part4.lzsa"
lemm5_part5_lzsa:
.incbin "music/lemm5.part5.lzsa"