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368 lines
8.1 KiB
368 lines
8.1 KiB
include "inc/constants.asm" |
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;; Game specific constants |
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; Game states |
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STATE_MENU EQU %00000001 |
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STATE_MENU_START EQU %01000000 |
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STATE_MENU_HELP EQU %10000000 |
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STATE_HELP EQU %00000010 |
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STATE_GAME EQU %00000100 |
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STATE_LOST EQU %00001000 |
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STATE_WON EQU %00011000 |
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; Marker for invalid or undefined values |
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NULL EQU $00 |
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;; Indices of special tiles |
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TILE_NULL EQU NULL |
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TILE_BLACK EQU $1b |
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TILE_WHITE EQU $1c |
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TILE_PLACEHOLDER EQU $1d |
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TILE_ENTER EQU $1e |
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TILE_RIGHT EQU $1f |
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TILE_MISPLACED EQU $20 |
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TILE_WRONG EQU $21 |
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TILE_SLASH EQU $22 |
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; Vertical blanking interrupt starting address |
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SECTION "ENTRY_VBLANK", ROM0[$0040] |
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jp int_vblank |
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; LCDC status interrupt starting address |
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SECTION "ENTRY_LCDCS", ROM0[$0048] |
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reti |
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; Timer overflow interrupt starting address |
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SECTION "ENTRY_TIMER", ROM0[$0050] |
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jp int_timer |
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; Serial transfer completion interrupt starting address |
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SECTION "ENTRY_SERIAL", ROM0[$0058] |
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reti |
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; Program starting address |
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SECTION "ENTRY_START", ROM0[$0100] |
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jp main |
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SECTION "MAIN", ROM0[$0150] |
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main: |
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; turn the screen off until everything is initialised |
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ld a, DISPLAY_OFF |
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ld [LCD_CONTROL_REGISTER], a |
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ld [LCD_STATUS_REGISTER], a |
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; set the stack pointer |
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ld sp, INITIAL_STACK_POINTER |
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; load the video data |
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call init_palettes |
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call load_tiles |
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call load_background_map |
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; initialise the objects |
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call init_oam_copy |
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call update_oam |
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; initialise the game state |
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call init_state_menu |
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; enable specific interrupts |
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ld a, INT_VBLANK_ON + INT_TIMER_ON |
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ld [INTERRUPT_SETTINGS], a |
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; configure the timer |
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ld a, TIMER_START + TIMER_16KHZ |
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ld [TIMER_SETTINGS], a |
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; Every frame consists of the phases: |
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; 1) The display will be updated. |
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; Within this period we can't alter the graphics data. |
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; We use this time to handle input and calculate stuff. |
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; 2) The display was updated. |
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; Now we have a limited time frame where we can update |
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; all graphic related memory locations. |
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main_loop: |
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ld a, [vblank_flag] |
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cp a, 0 |
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jp z, main_loop |
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.within_vblank: |
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call update_oam |
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call read_input |
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ld a, [current_state] |
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.in_menu: |
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cp a, STATE_MENU |
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jp nz, .in_help |
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call handle_input_menu |
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jp .cleanup |
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.in_help: |
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cp a, STATE_HELP |
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jp nz, .in_game |
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call handle_input_help |
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call update_hint_markings |
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call update_guess_objects |
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jp .cleanup |
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.in_game: |
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cp a, STATE_GAME |
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jp nz, .in_won |
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call handle_input_game |
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call update_hint_markings |
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call update_guess_objects |
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call update_cursor_objects |
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jp .cleanup |
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.in_won: |
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cp a, STATE_WON |
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jp nz, .in_lost |
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call handle_input_after |
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call update_hint_markings |
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jp .cleanup |
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.in_lost: |
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cp a, STATE_LOST |
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jp nz, .cleanup |
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call handle_input_after |
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call update_hint_markings |
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jp .cleanup |
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.cleanup: |
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; reset vblank flag |
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ld a, 0 |
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ld [vblank_flag], a |
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call check_message_timeout |
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jp main_loop |
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include "inc/init.asm" |
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include "inc/math.asm" |
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include "inc/oam.asm" |
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include "inc/dict.asm" |
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include "inc/input.asm" |
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include "inc/guess.asm" |
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include "inc/hints.asm" |
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include "inc/search.asm" |
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include "inc/messages.asm" |
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include "inc/wincondition.asm" |
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include "inc/interrupts.asm" |
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;; Game data |
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SECTION "DATA0", ROM0[$1000] |
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; Tiles |
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tiles_start: |
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tile_null: |
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include "tiles/plain-null.asm" |
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tiles_alphabet: |
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include "tiles/alphabet.asm" |
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tile_black: |
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include "tiles/plain-black.asm" |
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tile_white: |
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include "tiles/plain-white.asm" |
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tiles_placeholder: |
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include "tiles/sign-placeholder.asm" |
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tiles_enter: |
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include "tiles/sign-enter.asm" |
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tiles_right: |
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include "tiles/sign-right.asm" |
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tile_misplaced: |
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include "tiles/sign-misplaced.asm" |
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tiles_wrong: |
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include "tiles/sign-wrong.asm" |
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tiles_slash: |
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include "tiles/sign-slash.asm" |
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tiles_logo: |
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include "tiles/logo.asm" |
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tiles_end: |
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; Maps |
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maps_start: |
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background: |
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include "maps/background.asm" |
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window_help: |
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include "maps/window-help.asm" |
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window_game: |
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include "maps/window-game.asm" |
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maps_end: |
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dictionary: |
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incbin "dict/en.dat" |
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dictionary_end: |
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DB |
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; Help data |
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help_word: |
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DB $12, $09, $07, $08, $14 ; right |
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help_guess: |
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DB $06, $01, $15, $0c, $14 ; fault |
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DB $07, $09, $12, $14, $08 ; girth |
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DB $12, $09, $07, $08, $14 ; right |
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DB $0f, $0e, $0c, $19, $00 ; only |
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DB $13, $09, $18, $00, $00 ; six |
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DB $14, $12, $09, $05, $13 ; tries |
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help_guess_hints: |
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DB TILE_WRONG, TILE_WRONG, TILE_WRONG, TILE_WRONG, TILE_RIGHT |
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DB TILE_MISPLACED, TILE_MISPLACED, TILE_MISPLACED, TILE_MISPLACED, TILE_MISPLACED |
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DB TILE_RIGHT, TILE_RIGHT, TILE_RIGHT, TILE_RIGHT, TILE_RIGHT |
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DB TILE_WHITE, TILE_WHITE, TILE_WHITE, TILE_WHITE, TILE_WHITE |
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DB TILE_WHITE, TILE_WHITE, TILE_WHITE, TILE_WHITE, TILE_WHITE |
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DB TILE_WHITE, TILE_WHITE, TILE_WHITE, TILE_WHITE, TILE_WHITE |
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; Messages |
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message_clear: |
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DB $00, $00, $00, $00 |
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DB $00, $00, $00, $00 |
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DB $00, $00, $00, $00 |
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DB $00, $00, $00, $00 |
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DB $00, $00, $00, $00 |
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DB $00, $00, $00, $00 |
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DB $00, $00, $00, $00 |
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DB $00, $00, $00, $00 |
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DB $00, $00, $00, $00 |
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message_menu_start: |
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DB $88, $30, 19, OBJ_ATTR_PALETTE1 ; S |
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DB $88, $38, 20, OBJ_ATTR_PALETTE1 ; T |
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DB $88, $40, 01, OBJ_ATTR_PALETTE1 ; A |
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DB $88, $48, 18, OBJ_ATTR_PALETTE1 ; R |
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DB $88, $50, 20, OBJ_ATTR_PALETTE1 ; T |
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DB $88, $60, 07, OBJ_ATTR_PALETTE1 ; G |
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DB $88, $68, 01, OBJ_ATTR_PALETTE1 ; A |
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DB $88, $70, 13, OBJ_ATTR_PALETTE1 ; M |
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DB $88, $78, 05, OBJ_ATTR_PALETTE1 ; E |
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message_menu_help: |
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DB $90, $30, 08, OBJ_ATTR_PALETTE1 ; H |
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DB $90, $38, 15, OBJ_ATTR_PALETTE1 ; O |
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DB $90, $40, 23, OBJ_ATTR_PALETTE1 ; W |
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DB $90, $50, 20, OBJ_ATTR_PALETTE1 ; T |
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DB $90, $58, 15, OBJ_ATTR_PALETTE1 ; O |
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DB $90, $68, 16, OBJ_ATTR_PALETTE1 ; P |
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DB $90, $70, 12, OBJ_ATTR_PALETTE1 ; L |
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DB $90, $78, 01, OBJ_ATTR_PALETTE1 ; A |
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DB $90, $80, 25, OBJ_ATTR_PALETTE1 ; Y |
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message_unknown: |
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DB $74, $38, 21, OBJ_ATTR_PALETTE1 ; U |
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DB $74, $40, 14, OBJ_ATTR_PALETTE1 ; N |
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DB $74, $48, 11, OBJ_ATTR_PALETTE1 ; k |
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DB $74, $50, 14, OBJ_ATTR_PALETTE1 ; N |
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DB $74, $58, 15, OBJ_ATTR_PALETTE1 ; O |
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DB $74, $60, 23, OBJ_ATTR_PALETTE1 ; W |
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DB $74, $68, 14, OBJ_ATTR_PALETTE1 ; N |
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DB $00, $00, 0, 0 |
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DB $00, $00, 0, 0 |
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message_won: |
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DB $74, $38, 25, OBJ_ATTR_PALETTE1 ; Y |
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DB $74, $40, 15, OBJ_ATTR_PALETTE1 ; O |
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DB $74, $48, 21, OBJ_ATTR_PALETTE1 ; U |
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DB $74, $58, 23, OBJ_ATTR_PALETTE1 ; W |
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DB $74, $60, 15, OBJ_ATTR_PALETTE1 ; O |
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DB $74, $68, 14, OBJ_ATTR_PALETTE1 ; N |
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DB $00, $00, 0, 0 |
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DB $00, $00, 0, 0 |
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DB $00, $00, 0, 0 |
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message_lost: |
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DB $74, $30, 9, OBJ_ATTR_PALETTE1 ; I |
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DB $74, $38, 20, OBJ_ATTR_PALETTE1 ; T |
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DB $74, $40, 19, OBJ_ATTR_PALETTE1 ; S |
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DB $74, $50, 0, OBJ_ATTR_PALETTE1 ; guess[0] |
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DB $74, $58, 0, OBJ_ATTR_PALETTE1 ; guess[1] |
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DB $74, $60, 0, OBJ_ATTR_PALETTE1 ; guess[2] |
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DB $74, $68, 0, OBJ_ATTR_PALETTE1 ; guess[3] |
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DB $74, $70, 0, OBJ_ATTR_PALETTE1 ; guess[4] |
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DB $00, $00, 0, 0 |
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; Address reservations within the working ram |
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SECTION "RAM", WRAM0 |
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; The first 160 Bytes are reserved for a copy |
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; of the OAM data, which will be updated via DMA. |
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obj_start: |
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obj_selected_letter: |
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DS 4 |
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obj_guess_letters: |
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DS 120 |
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obj_message_letters: |
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DS 36 |
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obj_end: |
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obj_dma_padding: |
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DS 160 - (obj_end - obj_start) |
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; Will be set to 1 after each vblank interrupt |
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vblank_flag: |
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DB |
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; Saves the current 16bit random number |
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random_number: |
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DS 2 |
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; Saves the last keystate |
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input_state: |
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DB |
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; Saves the current game state |
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current_state: |
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DB |
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; Saves the state in the submenu |
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sub_state: |
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DB |
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; Number of the current guess |
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current_guess: |
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DB |
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; Position within the current guess |
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current_char: |
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DB |
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; Saves the current word |
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current_word: |
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DS 5 |
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; The guess attempts |
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guesses: |
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DS 30 |
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; The corresponding hints |
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guesses_hints: |
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DS 30 |
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; Message timeout |
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message_timeout: |
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DB |
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; Horizontal position of the letter selection |
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selected_letter_x: |
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DB |
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; Vertical position of the letter selection |
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selected_letter_y: |
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DB |
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