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144 lines
2.2 KiB
ArmAsm
144 lines
2.2 KiB
ArmAsm
; Riven -- Dome Island, Projector Room area
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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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.include "../common_defines.inc"
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.include "../qload.inc"
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.include "disk38_defines.inc"
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riven_projector:
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;===================
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; init screen
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;===================
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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 PAGE1
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bit HIRES
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bit FULLGR
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;========================
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; set up location
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;========================
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lda #<locations
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sta LOCATIONS_L
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lda #>locations
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sta LOCATIONS_H
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lda #0
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sta DRAW_PAGE
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sta LEVEL_OVER
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lda #0
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sta JOYSTICK_ENABLED
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sta UPDATE_POINTER
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lda #1
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sta CURSOR_VISIBLE
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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
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;===================================
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; open/shut door
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jsr update_temple_door
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jsr change_location
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jsr save_bg_14x14 ; save old bg
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game_loop:
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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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; handle keypress/joystick
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;===================================
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jsr handle_keypress
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;===================================
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; increment frame count
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;===================================
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inc FRAMEL
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bne frame_no_oflo
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inc FRAMEH
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frame_no_oflo:
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;====================================
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; check level over
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;====================================
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lda LEVEL_OVER
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bne really_exit
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jmp game_loop
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really_exit:
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rts
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;==========================
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; update temple door
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;==========================
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; update data to point to right image
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update_temple_door:
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lda STATE_DOORS
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and #TEMPLE_DOOR
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beq make_door_closed
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make_door_open:
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lda #$E0
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sta location0+LOCATION_NORTH_EXIT
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lda #<projector_n_open_zx02
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sta location0+LOCATION_NORTH_BG
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lda #>projector_n_open_zx02
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jmp make_door_common
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make_door_closed:
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lda #$FF
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sta location0+LOCATION_NORTH_EXIT
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lda #<projector_n_zx02
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sta location0+LOCATION_NORTH_BG
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lda #>projector_n_zx02
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make_door_common:
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sta location0+LOCATION_NORTH_BG+1
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rts
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;==========================
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; includes
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;==========================
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.include "graphics_projector/projector_graphics.inc"
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.include "leveldata_projector.inc"
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