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17 lines
527 B
NASM
Executable File
17 lines
527 B
NASM
Executable File
; metatile layout constants
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DEF FIRST_SPACE_METATILE EQU $80
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DEF FIRST_GREY_SPACE_METATILE EQU $e0
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DEF UNIQUE_SPACE_METATILES_MASK EQU %11111
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; reserved next space values that signal movement towards anchor point rather than towards space
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const_def -1, -1
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const GO_DOWN ; 255
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const GO_UP ; 254
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const GO_LEFT ; 253
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const GO_RIGHT ; 252
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DEF NEXT_SPACE_IS_ANCHOR_POINT EQU const_value + 1
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; Branch Space special direction values
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DEF BRANCH_DIRECTION_INVALID EQU -1
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DEF BRANCH_DIRECTION_UNAVAILABLE EQU -2
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