mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-11-01 01:06:33 +00:00
195 lines
2.7 KiB
ArmAsm
195 lines
2.7 KiB
ArmAsm
; D'NI -- deep beneath New Mexico
|
|
|
|
; by deater (Vince Weaver) <vince@deater.net>
|
|
|
|
; Zero Page
|
|
.include "zp.inc"
|
|
.include "hardware.inc"
|
|
.include "common_defines.inc"
|
|
.include "common_routines.inc"
|
|
|
|
dni_start:
|
|
;===================
|
|
; init screen
|
|
jsr TEXT
|
|
jsr HOME
|
|
bit KEYRESET
|
|
|
|
bit SET_GR
|
|
bit PAGE0
|
|
bit LORES
|
|
bit FULLGR
|
|
|
|
;=================
|
|
; set up location
|
|
;=================
|
|
|
|
lda #<locations
|
|
sta LOCATIONS_L
|
|
lda #>locations
|
|
sta LOCATIONS_H
|
|
|
|
lda #0
|
|
sta DRAW_PAGE
|
|
sta LEVEL_OVER
|
|
sta ANIMATE_FRAME
|
|
|
|
; init cursor
|
|
|
|
lda #20
|
|
sta CURSOR_X
|
|
sta CURSOR_Y
|
|
|
|
|
|
; set up initial location
|
|
|
|
jsr update_game_complete
|
|
|
|
jsr change_location
|
|
|
|
lda #1
|
|
sta CURSOR_VISIBLE ; visible at first
|
|
|
|
|
|
|
|
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
|
|
;====================================
|
|
|
|
; things always happening
|
|
lda LOCATION
|
|
cmp #DNI_DESK
|
|
bne done_foreground
|
|
|
|
jsr draw_atrus
|
|
|
|
done_foreground:
|
|
|
|
;====================================
|
|
; handle animations
|
|
;====================================
|
|
|
|
; things only happening when animating
|
|
|
|
lda LOCATION
|
|
cmp #DNI_MIST_BOOK_OPEN
|
|
bne nothing_special
|
|
|
|
animate_mist_book:
|
|
lda DIRECTION
|
|
cmp #DIRECTION_N
|
|
bne done_animate_book
|
|
|
|
lda ANIMATE_FRAME
|
|
cmp #6
|
|
bcc mist_book_good ; blt
|
|
|
|
lda #0
|
|
sta ANIMATE_FRAME
|
|
|
|
mist_book_good:
|
|
|
|
asl
|
|
tay
|
|
lda mist_movie,Y
|
|
sta INL
|
|
lda mist_movie+1,Y
|
|
sta INH
|
|
|
|
lda #24
|
|
sta XPOS
|
|
|
|
lda #12
|
|
sta YPOS
|
|
|
|
jsr put_sprite_crop
|
|
|
|
lda FRAMEL
|
|
and #$f
|
|
bne done_animate_book
|
|
|
|
inc ANIMATE_FRAME
|
|
|
|
done_animate_book:
|
|
|
|
|
|
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
|
|
;==========================
|
|
|
|
; level graphics
|
|
.include "graphics_dni/dni_graphics.inc"
|
|
|
|
; puzzles
|
|
.include "dni_ending.s"
|
|
|
|
; linking books
|
|
.include "link_book_mist.s"
|
|
|
|
; books
|
|
|
|
; level data
|
|
.include "leveldata_dni.inc"
|
|
|
|
|
|
|