dos33fsprogs/games/riven_hgr/disk41_files/level_cove.s
Vince Weaver 251cbdc617 riven: make game state use bitmaps
try to keep zero page usage down
2024-08-12 00:48:01 -04:00

119 lines
1.7 KiB
ArmAsm

; Riven -- Jungle Island -- Cove
; by deater (Vince Weaver) <vince@deater.net>
; Zero Page
.include "../zp.inc"
.include "../hardware.inc"
.include "../common_defines.inc"
.include "../qload.inc"
.include "disk41_defines.inc"
riven_jungle_cove:
;===================
; init screen
;===================
; jsr TEXT
; jsr HOME
bit KEYRESET
bit SET_GR
bit PAGE1
bit HIRES
bit FULLGR
;========================
; set up location
;========================
lda STATE_EVENTS
and #BEACH_ANIMALS_SEEN
beq no_beach_patch
lda #RIVEN_COVE
sta location1+2
no_beach_patch:
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
;===================================
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
;==========================
; includes
;==========================
.include "graphics_cove/cove_graphics.inc"
.include "leveldata_cove.inc"