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dos33fsprogs/mist/mist_title.s

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mist: some work on lores part
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; Mist Title
; loads a HGR version of the title
mist: move initial entry screen to title also modularize the linking book sound
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; also handles the initial link to mist
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; by deater (Vince Weaver) <vince@deater.net>
; Zero Page
.include "zp.inc"
.include "hardware.inc"
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.include "common_defines.inc"
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mist_start:
;===================
; init screen
jsr TEXT
jsr HOME
bit KEYRESET
bit SET_GR
bit PAGE0
bit HIRES
bit FULLGR
;===================
; Load graphics
;===================
reload_everything:
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lda #<file
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sta LZSA_SRC_LO
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lda #>file
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sta LZSA_SRC_HI
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lda #$20
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jsr decompress_lzsa2_fast
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;====================================
; load linking audio (12k) to $9000
lda #<linking_filename
sta OUTL
lda #>linking_filename
sta OUTH
jsr opendir_filename
;====================================
; wait for keypress or a few seconds
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bit KEYRESET
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lda #0
sta FRAMEL
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keyloop:
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lda #64 ; delay a bit
jsr WAIT
inc FRAMEL
lda FRAMEL ; time out eventually
beq done_keyloop
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lda KEYPRESS
bpl keyloop
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done_keyloop:
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bit KEYRESET
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;===================
; init screen
jsr TEXT
jsr HOME
bit KEYRESET
bit SET_GR
bit PAGE0
bit LORES
bit FULLGR
lda #0
sta DRAW_PAGE
; init cursor
lda #20
sta CURSOR_X
sta CURSOR_Y
lda #0
sta LEVEL_OVER
mist: give names to all the raw constants for rooms also split off the octagon room probably broke some things :(
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; set up initial location
lda #TITLE_MIST_LINKING_DOCK
sta LOCATION ; start at first room
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lda #DIRECTION_N
sta DIRECTION
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lda #LOAD_MIST ; load mist
sta WHICH_LOAD
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jsr change_location
lda #1
sta CURSOR_VISIBLE ; visible at first
; lda #0
; sta ANIMATE_FRAME
game_loop:
;=================
; reset things
;=================
lda #0
sta IN_SPECIAL
sta IN_RIGHT
sta IN_LEFT
;====================================
; copy background to current page
;====================================
jsr gr_copy_to_current
;====================================
; handle special-case forground logic
;====================================
; handle animated linking book
mist: give names to all the raw constants for rooms also split off the octagon room probably broke some things :(
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; note: the linking book to the dock doesn't have much action
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nothing_special:
;====================================
; draw pointer
;====================================
jsr draw_pointer
;====================================
; page flip
;====================================
jsr page_flip
;====================================
; handle keypress/joystick
;====================================
jsr handle_keypress
;====================================
; inc frame count
;====================================
inc FRAMEL
bne room_frame_no_oflo
inc FRAMEH
room_frame_no_oflo:
;====================================
; check level over
;====================================
lda LEVEL_OVER
bne really_exit
jmp game_loop
really_exit:
jmp end_level
;==========================
; includes
;==========================
.include "gr_copy.s"
.include "gr_offsets.s"
.include "gr_pageflip.s"
.include "gr_putsprite_crop.s"
.include "text_print.s"
.include "gr_fast_clear.s"
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.include "decompress_fast_v2.s"
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.include "keyboard.s"
.include "draw_pointer.s"
.include "end_level.s"
.include "audio.s"
.include "graphics_title/title_graphics.inc"
; puzzles
; linking books
.include "link_book_mist_dock.s"
.include "common_sprites.inc"
.include "leveldata_title.inc"
linking_filename:
.byte "LINK_NOISE.BTC",0
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file:
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.incbin "graphics_title/mist_title.lzsa"
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