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https://github.com/deater/dos33fsprogs.git
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186 lines
2.6 KiB
ArmAsm
186 lines
2.6 KiB
ArmAsm
; Selenitic (selena) island
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; by deater (Vince Weaver) <vince@deater.net>
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; Zero Page
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.include "zp.inc"
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.include "hardware.inc"
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selena_start:
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;===================
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; init screen
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jsr TEXT
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jsr HOME
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bit KEYRESET
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bit SET_GR
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bit PAGE0
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bit LORES
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bit FULLGR
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lda #0
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sta DRAW_PAGE
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; init cursor
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lda #20
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sta CURSOR_X
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sta CURSOR_Y
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;=================
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; init vars
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; FIXME: we could be re-called from other books
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; so don't set location here
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lda #0
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sta LOCATION
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lda #DIRECTION_E
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sta DIRECTION
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lda LOCATION
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bne not_first_time
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not_first_time:
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; set up initial location
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jsr change_location
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lda #1
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sta CURSOR_VISIBLE ; visible at first
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lda #0
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sta ANIMATE_FRAME
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game_loop:
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;=================
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; reset things
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;=================
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lda #0
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sta IN_SPECIAL
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sta IN_RIGHT
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sta IN_LEFT
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;====================================
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; copy background to current page
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;====================================
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jsr gr_copy_to_current
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;====================================
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; handle special-case forground logic
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;====================================
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; lda LOCATION
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; cmp #2
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; bne nothing_special
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; handle animated linking book
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; lda ANIMATE_FRAME
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; asl
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; tay
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; lda meche_movie,Y
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; sta INL
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; lda meche_movie+1,Y
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; sta INH
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; lda #22
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; sta XPOS
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; lda #12
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; sta YPOS
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; jsr put_sprite_crop
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; lda FRAMEL
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; and #$f
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; bne done_animate_book
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; inc ANIMATE_FRAME
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; lda ANIMATE_FRAME
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; cmp #11
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; bne done_animate_book
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; lda #0
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; sta ANIMATE_FRAME
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;done_animate_book:
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nothing_special:
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;====================================
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; draw pointer
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;====================================
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jsr draw_pointer
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;====================================
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; page flip
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;====================================
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jsr page_flip
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;====================================
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; handle keypress/joystick
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;====================================
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jsr handle_keypress
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;====================================
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; inc frame count
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;====================================
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inc FRAMEL
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bne room_frame_no_oflo
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inc FRAMEH
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room_frame_no_oflo:
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jmp game_loop
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;==========================
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; includes
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;==========================
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.include "gr_copy.s"
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.include "gr_offsets.s"
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.include "gr_pageflip.s"
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.include "gr_putsprite_crop.s"
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.include "text_print.s"
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.include "gr_fast_clear.s"
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.include "decompress_fast_v2.s"
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.include "keyboard.s"
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.include "draw_pointer.s"
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.include "audio.s"
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.include "graphics_selena/selena_graphics.inc"
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; puzzles
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.include "organ_puzzle.s"
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; linking books
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.include "link_book_selena.s"
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.include "common_sprites.inc"
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.include "leveldata_selena.inc"
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.include "speaker_beeps.s"
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;.align $100
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audio_link_noise:
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.incbin "audio/link_noise.btc"
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