forked from KolibriOS/kolibrios
847 lines
21 KiB
NASM
847 lines
21 KiB
NASM
;;===Level_mode================================================================================================================
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Level_begin:
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call Load_level
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call Get_eat
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mcall 66,1,1 ; set scan codes mode for keyboard
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Level_body:
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;;===Level_body========================================================================================================
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call Hide_cursor
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mcall 26, 9
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mov [time_before_waiting], eax
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mov eax, [time_wait_limit]
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mov [time_to_wait], eax
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.redraw:
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call Set_geometry
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mcall 12,1
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mcall 0, , ,[window_style], ,window_title
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call Draw_decorations
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call Draw_stones
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call Draw_snake
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call Draw_eat
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call Draw_level_strings
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mcall 12,2
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.still:
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mcall 26, 9
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push eax
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sub eax, [time_before_waiting]
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pop [time_before_waiting]
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cmp [time_to_wait], eax
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jg @f
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cmp [action], 0
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jne Game_step
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@@:
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sub [time_to_wait], eax
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mcall 23, [time_to_wait] ;
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test al, al
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jnz @f
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cmp [action], 0
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jne Game_step
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mcall 26, 9
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mov [time_before_waiting], eax
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mov eax, [time_wait_limit]
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mov [time_to_wait], eax
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jmp .still
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@@:
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.message: ; ok, what an event?
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dec al ; has the window been moved or resized?
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jz .redraw ;
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dec al ; was a key pressed?
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jz .key ;
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dec al ; was a button pressed?
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jz .button ;
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.button: ; ¯à®æ¥¤ãà ®¡à ¡®ª¨ ª®¯®ª ¢ ¯à®£à ¬¬¥
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mcall 17 ; äãªæ¨ï 17: ¯®«ãç¨âì ®¬¥à ¦ ⮩ ª®¯ª¨
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shr eax, 8 ; ᤢ¨£ ¥¬ ॣ¨áâà eax 8 ¡¨â ¢¯à ¢®, çâ®¡ë ¯®«ãç¨âì ®¬¥à ¦ ⮩ ª®¯ª¨
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cmp eax, 1
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je Save_do_smth_else_and_exit
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jmp .still
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.key:
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mcall 2 ; get keycode
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;pushf
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;pusha
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;movzx eax, ah
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;dph eax
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;newline
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;popa
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;popf
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cmp ah, 0x01 ; Escape
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je First_menu
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cmp ah, 0x39 ; Space
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je Pause_mode
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cmp ah, 0x4B ; Left
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je .key.left
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cmp ah, [shortcut_move_left] ; Left
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je .key.left
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cmp ah, 0x50 ; Down
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je .key.down
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cmp ah, [shortcut_move_down] ; Down
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je .key.down
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cmp ah, 0x48 ; Up
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je .key.up
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cmp ah, [shortcut_move_up] ; Up
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je .key.up
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cmp ah, 0x4D ; Right
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je .key.right
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cmp ah, [shortcut_move_right] ; Right
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je .key.right
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cmp ah, 0x4B+0x80 ; Left released
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je .key.released.left
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mov al, [shortcut_move_left]
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add al, 0x80
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cmp ah, al ; Left released
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je .key.released.left
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cmp ah, 0x50+0x80 ; Down released
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je .key.released.down
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mov al, [shortcut_move_down]
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add al, 0x80
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cmp ah, al ; Down released
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je .key.released.down
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cmp ah, 0x48+0x80 ; Up released
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je .key.released.up
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mov al, [shortcut_move_up]
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add al, 0x80
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cmp ah, al ; Up released
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je .key.released.up
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cmp ah, 0x4D+0x80 ; Right released
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je .key.released.right
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mov al, [shortcut_move_right]
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add al, 0x80
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cmp ah, al ; Right released
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je .key.released.right
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cmp ah, [shortcut_reverse]
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jne @f
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call Reverse_snake
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jmp .still
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@@:
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cmp ah, [shortcut_increase]
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jne @f
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call Increase_geometry
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jmp .redraw
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@@:
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cmp ah, [shortcut_decrease]
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jne @f
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call Decrease_geometry
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jmp .redraw
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@@:
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jmp .still ; jump to wait for another event
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.key.left:
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bts [action], 0
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jc @f
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mov [time_to_wait], 0
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@@:
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cmp [smart_reverse], 1
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jne @f
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cmp [snake_direction], RIGHT
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je .still
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@@:
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mov [snake_direction_next], LEFT
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bts [acceleration_mask], LEFT
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jc Game_step
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jmp .still
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.key.down:
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bts [action], 0
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jc @f
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mov [time_to_wait], 0
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@@:
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cmp [smart_reverse], 1
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jne @f
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cmp [snake_direction], UP
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je .still
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@@:
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mov [snake_direction_next], DOWN
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bts [acceleration_mask], DOWN
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jc Game_step
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jmp .still
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.key.up:
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bts [action], 0
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jc @f
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mov [time_to_wait], 0
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@@:
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cmp [smart_reverse], 1
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jne @f
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cmp [snake_direction], DOWN
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je .still
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@@:
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mov [snake_direction_next], UP
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bts [acceleration_mask], UP
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jc Game_step
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jmp .still
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.key.right:
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bts [action], 0
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jc @f
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mov [time_to_wait], 0
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@@:
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cmp [smart_reverse], 1
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jne @f
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cmp [snake_direction], LEFT
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je .still
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@@:
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mov [snake_direction_next], RIGHT
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bts [acceleration_mask], RIGHT
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jc Game_step
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jmp .still
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.key.released.left:
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btr [acceleration_mask], LEFT
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jmp .still
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.key.released.down:
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btr [acceleration_mask], DOWN
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jmp .still
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.key.released.up:
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btr [acceleration_mask], UP
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jmp .still
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.key.released.right:
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btr [acceleration_mask], RIGHT
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jmp .still
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Game_step:
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cmp [snake_direction], LEFT ; are we moving to left?
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jz .left
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cmp [snake_direction], DOWN ; ... down?
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jz .down
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cmp [snake_direction], UP ; ... up?
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jz .up
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jmp .right ; then right
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.left:
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cmp [snake_direction_next], RIGHT ; next step is to right?
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jz .with_reverse
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jmp .without_reverse
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.down:
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cmp [snake_direction_next], UP ; next step is to up?
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jz .with_reverse
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jmp .without_reverse
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.up:
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cmp [snake_direction_next], DOWN ; next step is to bottom?
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jz .with_reverse
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jmp .without_reverse
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.right:
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cmp [snake_direction_next], LEFT ; next step is to left?
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jz .with_reverse
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jmp .without_reverse
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.with_reverse:
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call Set_reverse_direction
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call Reverse
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.without_reverse:
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mov edx, snake_dots-2
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add edx, [snake_length_x2]
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cmp [snake_direction_next], LEFT
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je .to_left
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cmp [snake_direction_next], DOWN
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je .to_down
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cmp [snake_direction_next], UP
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je .to_up
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cmp [snake_direction_next], RIGHT
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je .to_right
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.to_left:
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mov [snake_direction], LEFT
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mov ax, [edx]
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dec al
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cmp al, -1
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jne @f
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mov al, GRID_WIDTH
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dec al
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@@:
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jmp Snake_move
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.to_down:
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mov [snake_direction], DOWN
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mov ax, [edx]
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inc ah
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cmp ah, GRID_HEIGHT
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jne @f
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mov ah, 0
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@@:
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jmp Snake_move
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.to_up:
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mov [snake_direction], UP
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mov ax, [edx]
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dec ah
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cmp ah, -1
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jne @f
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mov ah, GRID_HEIGHT
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dec ah
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@@:
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jmp Snake_move
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.to_right:
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mov [snake_direction], RIGHT
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mov ax, [edx]
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inc al
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cmp al, GRID_WIDTH
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jne @f
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mov al, 0
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@@:
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jmp Snake_move
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;;---Level_body--------------------------------------------------------------------------------------------------------
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;;---Level_mode----------------------------------------------------------------------------------------------------------------
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;;===Some_functions============================================================================================================
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Draw_snake:
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;;===Draw_snake========================================================================================================
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call Draw_head_prehead
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mov edx, [snake_color]
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mov esi, snake_dots-6
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add esi, [snake_length_x2]
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@@:
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mov bx, [esi]
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sub esi, 2
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call Draw_square
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cmp esi, snake_dots-2
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jne @b
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ret
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;;---Draw_snake--------------------------------------------------------------------------------------------------------
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Draw_head_prehead:
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;;===Draw_head_prehead=================================================================================================
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mov edx, [snake_head_color]
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mov esi, snake_dots-2
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add esi, [snake_length_x2]
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mov bx, [esi]
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call Draw_square
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sub esi, 2
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mov bx, [esi]
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mov edx, [snake_color]
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call Draw_square
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call Draw_lives_in_head
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ret
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;;---Draw_head_prehead-------------------------------------------------------------------------------------------------
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Draw_level_strings:
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;;===Draw_level_strings================================================================================================
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mov ebx, [window_width]
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shr ebx, 1
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sub ebx, string_pause_space.size*3+6
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shl ebx, 16
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add ebx, [top_strings]
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mcall 4, ,[navigation_strings_color],string_pause_space ; Draw 'PAUSE - SPACE' string
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; call Draw_menu_esc
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call Draw_score_string
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call Draw_score_number ; Draw score (number)
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call Draw_champion_string
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call Draw_champion_name
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call Draw_hiscore_string
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call Draw_hiscore_number
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cmp [play_mode], LEVELS_MODE
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jne @f
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mov ebx, [window_width]
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shr ebx, 3
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sub ebx, 5
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shl ebx, 16
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add ebx, [bottom_bottom_strings]
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mcall 4, ,[level_string_color],string_level
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mov edx, [window_width]
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shr edx, 3
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sub edx, 5+1
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add edx, string_level.size*6
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shl edx, 16
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add edx, [bottom_bottom_strings]
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mcall 47,0x00020000,[cur_level_number], ,[level_number_color],[background_color]
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@@:
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ret
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;;---Draw_level_strings------------------------------------------------------------------------------------------------
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Reverse:
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;;===Reverse===========================================================================================================
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mov ecx, [snake_length_x2]
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shr ecx, 2
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mov esi, snake_dots
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mov edi, snake_dots-2
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add edi, [snake_length_x2]
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@@:
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mov ax, [edi]
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xchg ax, [esi]
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mov [edi], ax
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add esi, 2
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sub edi, 2
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dec cx
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jnz @b
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ret
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;;---Reverse-----------------------------------------------------------------------------------------------------------
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Draw_eat:
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;;===Draw_eat==========================================================================================================
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mov bx, word[eat]
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mov edx, [eat_color]
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call Draw_square
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ret
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;;---Draw_eat----------------------------------------------------------------------------------------------------------
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Get_eat:
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;;===Get_eat===========================================================================================================
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;; in :
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;;
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;; out :
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;; ax = coord's of the eat square (al=x, ah=y)
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;;
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mcall 26,9
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; xor eax, esp
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shl eax, 1
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xor edx, edx
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div word[number_of_free_dots]
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mov ebx, field_map
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.loop:
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cmp byte[ebx], 0
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jne @f
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test dx, dx
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jz .place_found
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dec dx
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@@:
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inc ebx
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jmp .loop
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.place_found:
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sub ebx, field_map
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mov eax, ebx
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mov bl, GRID_WIDTH
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div bl
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xchg al, ah
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mov word[eat], ax
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ret
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;;---Get_eat-----------------------------------------------------------------------------------------------------------
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Sdvig:
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;;===Sdvig=============================================================================================================
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mov esi, snake_dots+2
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mov edi, snake_dots
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mov ecx, [snake_length_x2]
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shr ecx, 1
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cld
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rep movsw
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ret
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;;---Sdvig-------------------------------------------------------------------------------------------------------------
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Set_reverse_direction:
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;;===Set_reverse_direction==================================================================================================
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mov eax, snake_dots
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mov ebx, snake_dots+2
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mov cl, [eax] ; The last dot x_coord
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mov ch, [ebx] ; The pre_last dot x_coord
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cmp cl, ch
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je .X_ravny
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cmp cl, 0
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jne .skip2
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mov dl, GRID_WIDTH
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dec dl
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cmp ch, dl
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jne .Normal_y_ravny
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mov [snake_direction_next], RIGHT
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ret
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.skip2:
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mov dl, GRID_WIDTH
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dec dl
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cmp cl, dl
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jne .Normal_y_ravny
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cmp ch, 0
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jne .Normal_y_ravny
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mov [snake_direction_next], LEFT
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ret
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.Normal_y_ravny:
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cmp cl, ch
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jg .Napravlenie_to_right
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mov [snake_direction_next], LEFT
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ret
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.Napravlenie_to_right:
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mov [snake_direction_next], RIGHT
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ret
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.X_ravny:
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inc eax
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inc ebx
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mov cl, [eax]
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mov ch, [ebx]
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cmp cl, 0
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jne .skip3
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mov dl, GRID_HEIGHT
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dec dl
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cmp ch, dl
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jne .Normal_x_ravny
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mov [snake_direction_next], DOWN
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ret
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.skip3:
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mov dl, GRID_HEIGHT
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dec dl
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cmp ch, dl
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jne .Normal_x_ravny
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cmp ch, 0
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jne .Normal_x_ravny
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mov [snake_direction_next], UP
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ret
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.Normal_x_ravny:
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cmp cl, ch ; !!!
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jg .Napravlenie_to_down ; 0 1 2 ...
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mov [snake_direction_next], UP ; 1
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ret ; 2
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; .
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.Napravlenie_to_down: ; .
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mov [snake_direction_next], DOWN ; .
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ret
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;;---Set_reverse_direction--------------------------------------------------------------------------------------------------
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Snake_move:
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;;===Snake_move=============================================================================================================
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;; in :
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;; ax = coord's of new head
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;; edx = snake_dots+[snake_length_x2]-2 (snake head)
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;;
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add edx, 2
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mov [edx], ax
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cmp ax, word[eat]
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jne .eat_and_new_head_are_different
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add [snake_length_x2], 2
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add [score], SCORE_EAT
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dec [number_of_free_dots]
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cmp [number_of_free_dots], 0
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je Game_over
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mov ax, word[eat]
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mov cl, 1
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call Draw_on_map
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call Draw_head_prehead
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cmp [play_mode], CLASSIC_MODE
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jne .is_not_classic_mode
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dec byte[speed_up_counter]
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jns @f
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mov al, byte[speed_up_counter+1]
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mov byte[speed_up_counter], al
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cmp [time_wait_limit], 4
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jl @f
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dec [time_wait_limit]
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@@:
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.is_not_classic_mode:
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cmp [play_mode], LEVELS_MODE
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jne .is_not_levels_mode
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cmp [snake_length_x2], (EAT_TO_END_LEVEL+3)*2
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je .skip
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||
|
||
.is_not_levels_mode:
|
||
call Get_eat
|
||
call Draw_eat
|
||
.skip:
|
||
|
||
jmp Keys_done
|
||
|
||
|
||
.eat_and_new_head_are_different:
|
||
|
||
push ax
|
||
|
||
mov ax, word[snake_dots]
|
||
mov cl, 0
|
||
call Draw_on_map
|
||
|
||
pop ax
|
||
|
||
call Get_from_map
|
||
|
||
test bl, bl
|
||
jnz Game_over
|
||
|
||
mov cl, 1
|
||
call Draw_on_map
|
||
|
||
mov bx, word[snake_dots]
|
||
mov edx, [background_color]
|
||
call Draw_square
|
||
|
||
call Sdvig
|
||
|
||
call Draw_head_prehead
|
||
|
||
|
||
Keys_done:
|
||
|
||
cmp [score], 0
|
||
je @f
|
||
dec [score]
|
||
call Draw_score_number
|
||
@@:
|
||
|
||
cmp [play_mode], LEVELS_MODE
|
||
jne @f
|
||
cmp [snake_length_x2], (EAT_TO_END_LEVEL+3)*2
|
||
je Do_smth_between_levels
|
||
@@:
|
||
|
||
mcall 26, 9
|
||
mov [time_before_waiting], eax
|
||
mov eax, [time_wait_limit]
|
||
mov [time_to_wait], eax
|
||
jmp Level_body.still
|
||
|
||
;;---Snake_move------------------------------------------------------------------------------------------------------------
|
||
|
||
|
||
Do_smth_between_levels:
|
||
;;===Do_smth_between_levels================================================================================================
|
||
|
||
inc [cur_level_number]
|
||
cmp [cur_level_number], LAST_LEVEL_NUMBER+1
|
||
jne @f
|
||
mov [cur_level_number], LEVELS_MODE_FIRST_LEVEL
|
||
@@:
|
||
|
||
call Draw_splash
|
||
|
||
@@:
|
||
mcall 2
|
||
cmp eax, 1
|
||
jne @b
|
||
|
||
jmp Level_begin
|
||
|
||
;;---Do_smth_between_levels------------------------------------------------------------------------------------------------
|
||
|
||
|
||
Draw_splash:
|
||
;;===Draw_splash===========================================================================================================
|
||
|
||
mov al, 0
|
||
mov cl, GRID_WIDTH-1
|
||
mov edx, [splash_background_color]
|
||
|
||
.draw:
|
||
mov bh, GRID_HEIGHT-1
|
||
mov bl, al
|
||
@@:
|
||
call Draw_square
|
||
sub bh, 2
|
||
cmp bh, 0
|
||
jg @b
|
||
|
||
inc al
|
||
|
||
mov bh, GRID_HEIGHT-2
|
||
mov bl, cl
|
||
@@:
|
||
call Draw_square
|
||
sub bh, 2
|
||
cmp bh, 0
|
||
jnl @b
|
||
|
||
dec cl
|
||
cmp cl, 0
|
||
jl .picture
|
||
|
||
push eax ebx
|
||
mcall 5,PAUSE_WHILE_DRAWING_SPLASH
|
||
mcall 2
|
||
cmp ah, 0x39 ; Space
|
||
jne @f
|
||
pop ebx eax
|
||
jmp .quit
|
||
@@:
|
||
cmp ah, 0x1C ; Enter
|
||
jne @f
|
||
pop ebx eax
|
||
jmp .quit
|
||
@@:
|
||
pop ebx eax
|
||
jmp .draw
|
||
|
||
|
||
.picture:
|
||
mov ax, 2*0x100+24
|
||
mov cx, 1*0x100+5
|
||
mov edx, [splash_level_string_color]
|
||
mov esi, picture_level
|
||
call Draw_picture
|
||
|
||
mov eax, [cur_level_number]
|
||
mov dl, 10
|
||
div dl
|
||
push ax
|
||
|
||
mov esi, digits_font
|
||
@@:
|
||
test al, al
|
||
jz @f
|
||
add esi, 5
|
||
dec al
|
||
jmp @b
|
||
@@:
|
||
|
||
mov ax, 9*0x100+4
|
||
mov cx, 8*0x100+5
|
||
mov edx, [splash_level_number_color]
|
||
call Draw_picture
|
||
|
||
pop ax
|
||
mov esi, digits_font
|
||
@@:
|
||
test ah, ah
|
||
jz @f
|
||
add esi, 5
|
||
dec ah
|
||
jmp @b
|
||
@@:
|
||
|
||
mov ax, 15*0x100+4
|
||
mov cx, 8*0x100+5
|
||
mov edx, [splash_level_number_color]
|
||
call Draw_picture
|
||
|
||
mcall 26,9
|
||
mov [time_before_waiting], eax
|
||
mov [time_to_wait], PAUSE_BETWEEN_LEVELS
|
||
@@:
|
||
mcall 23,[time_to_wait]
|
||
mcall 2
|
||
cmp ah, 0x39 ; Space
|
||
je .quit
|
||
cmp ah, 0x1C ; Enter
|
||
je .quit
|
||
mcall 26,9
|
||
push eax
|
||
sub eax, [time_before_waiting]
|
||
pop [time_before_waiting]
|
||
sub [time_to_wait], eax
|
||
jns @b
|
||
.quit:
|
||
ret
|
||
|
||
;;---Draw_splash-----------------------------------------------------------------------------------------------------------
|
||
|
||
|
||
Draw_lives_in_head:
|
||
;;===Draw_lives_in_head====================================================================================================
|
||
|
||
cmp [play_mode], LEVELS_MODE
|
||
jne .quit
|
||
test [show_lives_style], 2
|
||
jz .quit
|
||
mov eax, snake_dots-2
|
||
add eax, [snake_length_x2]
|
||
mov ax, word[eax]
|
||
|
||
mov bl, ah
|
||
mul byte[g_s]
|
||
mov edx, [gbxm1]
|
||
add dx, ax
|
||
shl edx, 16
|
||
mov al, bl
|
||
mul byte[g_s]
|
||
mov dx, word[gbym1]
|
||
add dx, ax
|
||
|
||
mov eax, [g_s]
|
||
shl eax, 16
|
||
add eax, [g_s]
|
||
and eax, 0xfffefffe
|
||
shr eax, 1
|
||
add edx, eax
|
||
sub edx, 0x00020003
|
||
mcall 47,0x80010001,lives,,[lives_in_head_number_color]
|
||
|
||
.quit:
|
||
ret
|
||
|
||
;;---Draw_lives_in_head----------------------------------------------------------------------------------------------------
|
||
|
||
|
||
;;---Some_functions------------------------------------------------------------------------------------------------------------ |