mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-11-17 14:12:58 +00:00
297 lines
4.3 KiB
ArmAsm
297 lines
4.3 KiB
ArmAsm
; Octagon -- inside the Octagon Temple
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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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octagon_start:
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;===================
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; init screen
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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 PAGE0
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bit LORES
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bit FULLGR
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lda #0
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sta DRAW_PAGE
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sta LEVEL_OVER
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sta ANIMATE_FRAME
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; init cursor
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lda #20
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sta CURSOR_X
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sta CURSOR_Y
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; set up initial location
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jsr change_location
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lda #1
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sta CURSOR_VISIBLE ; visible at first
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game_loop:
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;=================
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; reset things
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;=================
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lda #0
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sta IN_SPECIAL
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sta IN_RIGHT
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sta IN_LEFT
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;====================================
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; copy background to current page
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;====================================
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jsr gr_copy_to_current
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;====================================
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; handle special-case forground logic
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;====================================
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; things always happening
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lda LOCATION
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cmp #OCTAGON_TOWER_ROTATION
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beq animate_tower_rotation
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; things only happening when animating
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lda ANIMATE_FRAME
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beq nothing_special
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lda LOCATION
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cmp #OCTAGON_FRAME_SHELF
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beq animate_frame_shelf
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cmp #OCTAGON_FRAME_DOOR
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beq animate_frame_door
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cmp #OCTAGON_TEMPLE_CENTER
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beq animate_shelf
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cmp #OCTAGON_ELEVATOR_IN
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beq animate_elevator
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bne nothing_special
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animate_frame_shelf:
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jsr shelf_swirl
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jmp nothing_special
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animate_frame_door:
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jsr door_swirl
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jmp nothing_special
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animate_shelf:
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jsr animate_shelf_open
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jmp nothing_special
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animate_elevator:
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jsr animate_elevator_ride
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jmp nothing_special
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animate_tower_rotation:
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jsr handle_tower_rotation
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jmp nothing_special
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nothing_special:
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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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; page flip
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;====================================
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jsr page_flip
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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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; inc frame count
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;====================================
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inc FRAMEL
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bne room_frame_no_oflo
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inc FRAMEH
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room_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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jmp end_level
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leave_octagon:
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lda #MIST_OUTSIDE_TEMPLE
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sta LOCATION
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lda #LOAD_MIST
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sta WHICH_LOAD
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lda #$ff
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sta LEVEL_OVER
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rts
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handle_octagon:
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ldx CURSOR_X
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lda DIRECTION
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and #$f
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cmp #DIRECTION_W
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beq octagon_w
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cmp #DIRECTION_E
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beq octagon_e
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cmp #DIRECTION_S
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beq octagon_s
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octagon_n:
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cpx #10
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bcc goto_shelf_frame
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cpx #29
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bcs goto_door_frame
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bcc goto_bookshelf
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octagon_e:
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cpx #10
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bcc goto_door_frame
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cpx #29
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bcs goto_fireplace
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bcc goto_blue_book
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octagon_w:
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cpx #10
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bcc goto_map
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cpx #29
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bcs goto_shelf_frame
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bcc goto_red_book
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octagon_s:
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cpx #10
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bcc goto_fireplace
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cpx #29
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bcs goto_map
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bcc goto_door
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goto_map:
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ldy #OCTAGON_MAP
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lda #DIRECTION_W
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jmp done_goto
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goto_red_book:
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ldy #OCTAGON_RED_BOOKSHELF
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lda #DIRECTION_W
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jmp done_goto
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goto_shelf_frame:
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ldy #OCTAGON_FRAME_SHELF
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lda #DIRECTION_N
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jmp done_goto
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goto_bookshelf:
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ldy #OCTAGON_BOOKSHELF
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lda #DIRECTION_N
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jmp done_goto
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goto_door_frame:
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ldy #OCTAGON_FRAME_DOOR
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lda #DIRECTION_N
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jmp done_goto
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goto_blue_book:
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ldy #OCTAGON_BLUE_BOOKSHELF
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lda #DIRECTION_E
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jmp done_goto
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goto_fireplace:
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ldy #OCTAGON_FIREPLACE
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lda #DIRECTION_E
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jmp done_goto
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goto_door:
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ldy #OCTAGON_TEMPLE_DOORWAY
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lda #DIRECTION_S
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jmp done_goto
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done_goto:
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sty LOCATION
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sta DIRECTION
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jmp change_location
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;==========================
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; includes
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;==========================
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.include "gr_copy.s"
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.include "gr_offsets.s"
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.include "gr_pageflip.s"
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.include "gr_putsprite_crop.s"
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.include "text_print.s"
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.include "gr_fast_clear.s"
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.include "decompress_fast_v2.s"
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.include "keyboard.s"
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.include "draw_pointer.s"
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.include "audio.s"
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.include "graphics_octagon/octagon_graphics.inc"
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.include "end_level.s"
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; puzzles
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.include "brother_books.s"
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.include "octagon_bookshelf.s"
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.include "octagon_rotation.s"
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; linking books
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; books
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.include "books/octagon_books.inc"
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.include "common_sprites.inc"
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.include "leveldata_octagon.inc"
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;.align $100
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audio_red_page:
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.incbin "audio/red_page.btc"
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