Vince Weaver 411b9ef4e6 riven: add more two-way paths
all of this a huge mess just so we could go see the fish statue
2024-08-04 01:31:02 -04:00

160 lines
2.2 KiB
ArmAsm

; Riven -- Jungle Island -- Logging area 3
; by deater (Vince Weaver) <vince@deater.net>
; Zero Page
.include "../zp.inc"
.include "../hardware.inc"
.include "../common_defines.inc"
.include "../qload.inc"
.include "disk43_defines.inc"
riven_logged3:
;===================
; init screen
;===================
; jsr TEXT
; jsr HOME
bit KEYRESET
bit SET_GR
bit PAGE1
bit HIRES
bit FULLGR
;========================
; set up location
;========================
lda #<locations
sta LOCATIONS_L
lda #>locations
sta LOCATIONS_H
lda #0
sta DRAW_PAGE
sta LEVEL_OVER
lda #0
sta JOYSTICK_ENABLED
sta UPDATE_POINTER
lda #1
sta CURSOR_VISIBLE
lda #20
sta CURSOR_X
sta CURSOR_Y
;===================================
; init
;===================================
; done in title
; lda #$20
; sta HGR_PAGE
; jsr hgr_make_tables
jsr change_location
jsr save_bg_14x14 ; save old bg
game_loop:
;===================================
; draw pointer
;===================================
jsr draw_pointer
;===================================
; handle keypress/joystick
;===================================
jsr handle_keypress
;===================================
; increment frame count
;===================================
inc FRAMEL
bne frame_no_oflo
inc FRAMEH
frame_no_oflo:
;====================================
; check level over
;====================================
lda LEVEL_OVER
bne really_exit
jmp game_loop
really_exit:
rts
;==========================
; handle split dir
;==========================
handle_split_dir1:
; if 19 or less, go to disk44
; if 20, do nothing
; if 21 or more, go W
lda CURSOR_X
cmp #21
bcs go_west
cmp #19
bcc go_disk44
rts
go_west:
lda #LOAD_LOGGED4
sta WHICH_LOAD
lda #RIVEN_LOGGED4
sta LOCATION
lda #1
sta LEVEL_OVER
lda #DIRECTION_W
bne done_dir ; bra
go_disk44:
lda #$E2
sta LEVEL_OVER
lda #DIRECTION_E
done_dir:
sta DIRECTION
rts
;==========================
; includes
;==========================
.include "graphics_logged3/logged3_graphics.inc"
.include "leveldata_logged3.inc"