mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-12-28 09:30:41 +00:00
201 lines
2.6 KiB
ArmAsm
201 lines
2.6 KiB
ArmAsm
; Ootw Checkpoint2 -- Running around the Jail
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ootw_jail:
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;===========================
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; Enable graphics
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bit LORES
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bit SET_GR
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bit FULLGR
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;===========================
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; Setup pages (is this necessary?)
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lda #0
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sta DRAW_PAGE
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lda #1
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sta DISP_PAGE
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;=============================
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; load background image
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jsr jail_load_background
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;==============================
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; setup per-room variables
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lda WHICH_JAIL
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bne jail1
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jail0:
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lda #(20+128)
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sta LEFT_LIMIT
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lda #(39+128)
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sta RIGHT_LIMIT
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; set right exit
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lda #1
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sta jer_smc+1
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lda #<ootw_jail
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sta jer_smc+5
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lda #>ootw_jail
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sta jer_smc+6
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; set left exit
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lda #0
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sta jel_smc+1
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lda #<ootw_jail
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sta jel_smc+5
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lda #>ootw_jail
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sta jel_smc+6
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jmp jail_setup_done
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jail1:
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lda #(-4+128)
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sta LEFT_LIMIT
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lda #(39+128)
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sta RIGHT_LIMIT
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jail_setup_done:
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;=================================
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; copy to screen
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jsr gr_copy_to_current
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jsr page_flip
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;=================================
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; setup vars
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lda #0
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sta GAIT
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sta GAME_OVER
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;============================
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; Cage Loop
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;============================
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jail_loop:
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;================================
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; copy background to current page
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jsr gr_copy_to_current
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;=======================
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; draw miners mining
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;===============================
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; check keyboard
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jsr handle_keypress
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;===============================
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; move physicist
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jsr move_physicist
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;===============
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; check room limits
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jsr check_screen_limit
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;===============
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; draw physicist
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jsr draw_physicist
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;================
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; draw foreground
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;===============
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; page flip
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jsr page_flip
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;================
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; inc frame count
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inc FRAMEL
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bne jail_frame_no_oflo
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inc FRAMEH
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jail_frame_no_oflo:
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; check if done this level
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lda GAME_OVER
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beq still_in_jail
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cmp #$ff ; if $ff, we died
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beq done_jail
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;===============================
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; check if exited room to right
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cmp #1
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beq jail_exit_left
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; exit to right
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jail_exit_right:
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lda #0
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sta PHYSICIST_X
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jer_smc:
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lda #$0
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sta WHICH_CAVE
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jmp ootw_jail
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jail_exit_left:
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lda #37
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sta PHYSICIST_X
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jel_smc:
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lda #0
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sta WHICH_CAVE
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jmp ootw_jail
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; loop forever
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still_in_jail:
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jmp jail_loop
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done_jail:
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rts
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;===============================
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; load proper background to $c00
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;===============================
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jail_load_background:
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lda WHICH_JAIL
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bne jail_bg1
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jail_bg0:
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; load background
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lda #>(cage_fell_rle)
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sta GBASH
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lda #<(cage_fell_rle)
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sta GBASL
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jmp jail_bg_done
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jail_bg1:
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; load background
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lda #>(jail2_rle)
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sta GBASH
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lda #<(jail2_rle)
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sta GBASL
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jail_bg_done:
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lda #$c ; load to page $c00
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jmp load_rle_gr ; tail call
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