mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-11-04 20:06:09 +00:00
380 lines
5.2 KiB
ArmAsm
380 lines
5.2 KiB
ArmAsm
; Ootw Rope course
|
|
|
|
ootw_rope:
|
|
;===========================
|
|
; Enable graphics
|
|
|
|
bit LORES
|
|
bit SET_GR
|
|
bit FULLGR
|
|
|
|
;===========================
|
|
; Setup pages (is this necessary?)
|
|
|
|
lda #0
|
|
sta DRAW_PAGE
|
|
lda #1
|
|
sta DISP_PAGE
|
|
|
|
;=================================
|
|
; Setup right/left exit paramaters
|
|
|
|
lda #(39+128)
|
|
sta RIGHT_LIMIT
|
|
lda #(11+128)
|
|
sta LEFT_LIMIT
|
|
|
|
lda #0
|
|
sta SWING_PROGRESS
|
|
|
|
|
|
;=============================
|
|
; Load background to $c00
|
|
|
|
lda BEFORE_SWING
|
|
beq after_swing_bg
|
|
|
|
before_swing_bg:
|
|
lda #>(rope_rle)
|
|
sta GBASH
|
|
lda #<(rope_rle)
|
|
sta GBASL
|
|
jmp load_swing_bg
|
|
|
|
after_swing_bg:
|
|
lda #>(broke_rope_rle)
|
|
sta GBASH
|
|
lda #<(broke_rope_rle)
|
|
sta GBASL
|
|
|
|
load_swing_bg:
|
|
lda #$c ; load image off-screen $c00
|
|
jsr load_rle_gr
|
|
|
|
;================================
|
|
; Load quake background to $BC00
|
|
|
|
jsr gr_make_quake
|
|
|
|
;=================================
|
|
; copy $c00 to both pages $400/$800
|
|
|
|
jsr gr_copy_to_current
|
|
jsr page_flip
|
|
|
|
;=================================
|
|
; setup vars
|
|
|
|
lda #0
|
|
sta GAIT
|
|
sta GAME_OVER
|
|
|
|
jsr setup_beast
|
|
|
|
;============================
|
|
;============================
|
|
; Rope Loop
|
|
;============================
|
|
;============================
|
|
rope_loop:
|
|
|
|
;============================
|
|
; Check if swinging
|
|
;============================
|
|
|
|
lda SWING_PROGRESS
|
|
beq no_swing
|
|
|
|
|
|
cmp #80 ; only load background on first frame
|
|
bne swing_not_first
|
|
|
|
lda #<no_rope_rle
|
|
sta GBASL
|
|
lda #>no_rope_rle
|
|
sta GBASH
|
|
lda #$C ; load image off-screen $C00
|
|
jsr load_rle_gr
|
|
|
|
swing_not_first:
|
|
dec SWING_PROGRESS
|
|
dec SWING_PROGRESS
|
|
|
|
ldx SWING_PROGRESS
|
|
lda swing_progression,X
|
|
sta GBASL
|
|
lda swing_progression+1,X
|
|
sta GBASH
|
|
lda #$10 ; load image off-screen $1000
|
|
jsr load_rle_gr
|
|
|
|
jsr gr_overlay_40x40
|
|
|
|
|
|
; FIXME
|
|
; jsr gr_make_quake ; make quake
|
|
|
|
jmp beyond_quake
|
|
|
|
no_swing:
|
|
|
|
;================================
|
|
; handle earthquakes
|
|
|
|
jsr earthquake_handler
|
|
|
|
beyond_quake:
|
|
|
|
;===============================
|
|
; check keyboard
|
|
|
|
jsr handle_keypress
|
|
|
|
;===============================
|
|
; move physicist
|
|
|
|
jsr move_physicist
|
|
|
|
;===============================
|
|
; check screen limits
|
|
|
|
jsr check_screen_limit
|
|
|
|
|
|
;================
|
|
; handle beast
|
|
|
|
lda BEAST_OUT
|
|
beq rope_no_beast
|
|
|
|
;================
|
|
; move beast
|
|
|
|
jsr move_beast
|
|
|
|
;================
|
|
; draw beast
|
|
|
|
jsr draw_beast
|
|
|
|
rope_no_beast:
|
|
|
|
|
|
;===============================
|
|
; check if swinging off
|
|
|
|
lda PHYSICIST_STATE
|
|
cmp #P_SWINGING
|
|
bne done_swing_check
|
|
|
|
lda SWING_PROGRESS
|
|
bne done_swing_check
|
|
|
|
; swung off screen!
|
|
|
|
lda #5
|
|
sta GAME_OVER
|
|
|
|
|
|
|
|
done_swing_check:
|
|
;===============
|
|
; draw physicist
|
|
|
|
; adjust y for slope
|
|
|
|
lda PHYSICIST_X
|
|
cmp #26
|
|
bcs phys_no_adjust_y ; blt
|
|
|
|
cmp #17
|
|
bcc phys_on_platform
|
|
|
|
; lda PHYSICIST_X
|
|
sec
|
|
sbc #3
|
|
and #$fe ; our sprite code only draws even y
|
|
|
|
jmp phys_done_adjust_y
|
|
; slope is 15 - 26 ( 28 - 36)
|
|
; 26 -> 22
|
|
|
|
phys_on_platform:
|
|
lda #14
|
|
bne phys_done_adjust_y
|
|
|
|
phys_no_adjust_y:
|
|
lda #22
|
|
phys_done_adjust_y:
|
|
sta PHYSICIST_Y
|
|
|
|
|
|
lda PHYSICIST_STATE
|
|
cmp #P_SWINGING
|
|
beq hes_swinging
|
|
|
|
jsr draw_physicist
|
|
hes_swinging:
|
|
|
|
;======================
|
|
; draw foreground plant
|
|
|
|
lda #<foreground_spikes
|
|
sta INL
|
|
lda #>foreground_spikes
|
|
sta INH
|
|
|
|
lda #30
|
|
sta XPOS
|
|
lda #30
|
|
sec
|
|
sbc EARTH_OFFSET
|
|
sta YPOS
|
|
|
|
jsr put_sprite
|
|
|
|
;================
|
|
; draw falling boulder
|
|
|
|
jsr draw_boulder
|
|
|
|
|
|
;===============
|
|
; page flip
|
|
|
|
jsr page_flip
|
|
|
|
;================
|
|
; inc frame count
|
|
|
|
inc FRAMEL
|
|
bne rope_frame_no_oflo
|
|
inc FRAMEH
|
|
|
|
rope_frame_no_oflo:
|
|
|
|
;=========================
|
|
; check if done this room
|
|
;=========================
|
|
|
|
|
|
; handle game over
|
|
|
|
lda GAME_OVER
|
|
cmp #$ff
|
|
beq done_rope
|
|
|
|
; if 2 then exiting right, to pool
|
|
cmp #$2
|
|
bne check_cliff_edge
|
|
|
|
lda #0
|
|
sta PHYSICIST_X
|
|
sta EARTH_OFFSET
|
|
|
|
jmp ootw_pool
|
|
|
|
|
|
; if 1 then at edge of cliff
|
|
check_cliff_edge:
|
|
cmp #$1
|
|
bne check_swung_off
|
|
|
|
lda #0
|
|
sta GAME_OVER
|
|
|
|
;===================
|
|
; at cliff's edge
|
|
|
|
lda #0
|
|
sta BEFORE_SWING
|
|
|
|
; FIXME: check for jump
|
|
|
|
lda #80
|
|
sta SWING_PROGRESS
|
|
|
|
lda #11
|
|
sta PHYSICIST_X
|
|
|
|
lda #P_SWINGING
|
|
sta PHYSICIST_STATE
|
|
|
|
jmp not_done_rope
|
|
|
|
check_swung_off:
|
|
cmp #$5
|
|
bne not_done_rope
|
|
|
|
|
|
;==========================
|
|
; swung off screen to right
|
|
|
|
lda #1
|
|
sta PHYSICIST_X
|
|
sta EARTH_OFFSET
|
|
sta DIRECTION ; face right
|
|
sta BEAST_DIRECTION
|
|
lda #10
|
|
sta PHYSICIST_Y
|
|
lda #P_FALLING
|
|
sta PHYSICIST_STATE
|
|
|
|
jmp ootw_pool
|
|
|
|
|
|
not_done_rope:
|
|
; loop forever
|
|
|
|
jmp rope_loop
|
|
|
|
done_rope:
|
|
rts
|
|
|
|
|
|
|
|
|
|
|
|
swing_progression:
|
|
.word swing25_rle
|
|
.word swing24_rle
|
|
.word swing23_rle
|
|
.word swing22_rle
|
|
.word swing21_rle
|
|
.word swing20_rle
|
|
.word swing19_rle
|
|
.word swing18_rle
|
|
.word swing17_rle
|
|
.word swing16_rle
|
|
.word swing15_rle
|
|
.word swing14_rle
|
|
.word swing13_rle
|
|
.word swing12_rle
|
|
.word swing11_rle
|
|
.word swing10_rle
|
|
.word swing08_rle
|
|
.word swing08_rle
|
|
.word swing08_rle
|
|
.word swing08_rle
|
|
.word swing08_rle
|
|
.word swing08_rle
|
|
.word swing08_rle
|
|
.word swing08_rle
|
|
.word swing08_rle
|
|
.word swing08_rle
|
|
.word swing08_rle
|
|
.word swing08_rle
|
|
.word swing08_rle
|
|
.word swing08_rle
|
|
.word swing08_rle
|
|
.word swing08_rle
|
|
.word swing08_rle
|
|
.word swing08_rle
|
|
.word swing06_rle
|
|
.word swing05_rle
|
|
.word swing04_rle
|
|
.word swing03_rle
|
|
.word swing02_rle
|
|
.word swing01_rle
|
|
|