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157 lines
2.2 KiB
ArmAsm
157 lines
2.2 KiB
ArmAsm
; Riven -- Inside Rotate room, area 15
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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 "disk10_defines.inc"
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room_15_start:
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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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; done in title
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; lda #$20
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; sta HGR_PAGE
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; jsr hgr_make_tables
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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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; move to center
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;==========================
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move_to_center:
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; if 17 or less, go to center_23
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; if 23 or more, go to center_34
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; otherwise, go directly to pillar 3 (TODO?)
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lda CURSOR_X
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cmp #18
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bcc go_center_23 ; blt
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cmp #23
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bcs go_center_34 ; bge
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; do nothing
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rts
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go_center_23:
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lda #LOAD_CENTER
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sta WHICH_LOAD
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lda #RIVEN_CENTER_23
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sta LOCATION
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jmp done_dir
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go_center_34:
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lda #LOAD_CENTER
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sta WHICH_LOAD
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lda #RIVEN_CENTER_34
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sta LOCATION
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done_dir:
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lda #DIRECTION_N
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sta DIRECTION
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lda #1
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sta LEVEL_OVER
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rts
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;==========================
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; includes
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;==========================
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.include "graphics_15/15_graphics.inc"
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.include "leveldata_15.inc"
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