77 lines
3.5 KiB
BQN
Executable File
77 lines
3.5 KiB
BQN
Executable File
#!/usr/bin/env BQN
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# SPDX-License-Identifier: AGPL-3.0-or-later
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# SPDX-FileCopyrightText: 2022 Rampoina <rampoina@protonmail.com>
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#
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# Sokobqn
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# The level is a 2d matrix of lists (tiles)
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# Each list contains the objects of the game:
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# 0: floor, 1: player, 2: box, 3: goal, 4: wall
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# 4: player on goal, 5: box on goal
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#
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# Example: ASCII:
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# ┌─ ┌─
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# ╵ ⟨ 4 ⟩ ⟨ 4 ⟩ ⟨ 4 ⟩ ⟨ 4 ⟩ ⟨ 4 ⟩ ╵"#####
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# ⟨ 4 ⟩ ⟨ 1 0 ⟩ ⟨ 2 0 ⟩ ⟨ 0 ⟩ ⟨ 4 ⟩ #@*.#
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# ⟨ 4 ⟩ ⟨ 4 ⟩ ⟨ 4 ⟩ ⟨ 4 ⟩ ⟨ 4 ⟩ #####"
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# ┘ ┘
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moves←⟨0‿0⟩ # list of moves, each move is a direction, we start without moving
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chars←" @$.+*#" # legal characters
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SplitOnEmpty←{𝕩⊔˜(⊢-˜+`׬)0=≠¨𝕩}
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Ascii2Matrix←{(⊑chars⊐𝕩)⊑⟨≍0,1‿0,2‿0,≍3,1‿3,2‿3,≍6⟩}¨(⊢↑˝·≍⟜¬2+≢)
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# 𝕨 Tiles 𝕩 | 𝕩: object coordinate (3‿1) | 𝕨: direction vector (¯1‿0)
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# result: ⟨ ⟨ 3 1 ⟩ ⟨ 2 1 ⟩ ⟨ 1 1 ⟩ ⟩
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# returns 3 tiles in the specified direction from the
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Tiles←{⟨𝕩,𝕩+𝕨,𝕩+2×𝕨⟩} # given object (including itself)
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Player←{⊑/○⥊⟜(↕≢)1⍷⊑¨𝕩} # Player 𝕩 | 𝕩:level | returns the coordinate of the [P]layer
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# Move 𝕩 | 𝕩: ⟨⟨1,0⟩,⟨0⟩⟩ (2 tiles) | result: ⟨⟨0⟩,⟨1,0⟩⟩
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# Move the first object in the first tile to the second tile.
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# Only move Player/Box -> Floor/Goal
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# the second tile can't be a box because we moved it previously
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# if it is it means that the box was unmovable (next to a wall) so we do nothing
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Move←{a‿b:⟨1↓a,(⊑a)∾b⟩}⍟{∨´(⥊1‿2≍⌜0‿3)≡⌜<⊑¨𝕩}
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# Push 𝕩 | 𝕩: ⟨⟨1,0⟩,⟨2,0⟩,⟨0,0)⟩ (3 tiles) | result: ⟨⟨0⟩,⟨1,0⟩,⟨2,0)⟩
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# Given 3 tiles try to [P]ush the second tile (possible box)
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# and afterwards try to move the first one (player) if possible
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Push←Move⌾(2↑⊢)Move⌾(1↓⊢)
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S←{Push⌾((𝕨 Tiles Player 𝕩 )⊸⊑)𝕩} # 𝕨 S 𝕩 | 𝕨: direction | 𝕩:level | step the game
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Draw←{chars⊏˜+´¨𝕨 S´ ⌽𝕩} # Draw 𝕩 | 𝕩: moves | Draw the game in ASCII
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W←{(2≡¨⊑¨𝕩) =○(+´⥊) (<2‿3)≡¨𝕩} # W 𝕩 | 𝕩: level | [W]in condition
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N←{moves↩moves∾<𝕩}
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Undo←{𝕊:moves↩(-1<≠)⊸↓moves}
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While ← {𝕨{𝕊∘𝔾⍟𝔽𝕩}𝕩@}´
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# Main loop
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# Load file containing levels
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levels←Ascii2Matrix¨>¨SplitOnEmpty•FLines "levels"
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currentLevel←0
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•term.RawMode 1 # set terminal to raw mode
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•Out "[?25l[2J[H" # Cursor to origin, hide it and clear screen
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clear←""
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While {𝕤⋄currentLevel<≠levels}‿{𝕤 # Loop until the user wins
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•Out "[H"
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•Out "Level: "∾•Repr 1+currentLevel
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•Out "7"
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•Out "Press key"
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•Out˘ (currentLevel⊑levels) Draw moves
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key←•term.CharB @
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{𝕤⋄N ⊑("hjkl"=key)/⟨0‿¯1,1‿0,¯1‿0,0‿1⟩}⍟(⊑key∊"hjkl")@
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{𝕤⋄Undo @}⍟(key='u')@
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{𝕤⋄•Out "[?12l[?25h"⋄•Exit 0}⍟(key='q')@
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{𝕤⋄clear↩"[2J"}⍟(((1⊸+>○(⌊1+10⋆⁼1⌈⊢)⊢)¯1+≠moves)∧key='u')@
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•Out "8"
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{𝕤⋄•Out clear∾"Press key"}⍟(⊑key∊"hjklu")@
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{𝕤⋄•Out "Wrong key"}⍟(¬⊑key∊"hjkluq")@
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•Out˘ (currentLevel⊑levels) Draw moves
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•Out "Moves: "∾•Repr ¯1+≠moves
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{𝕤⋄•Out "[H"⋄currentLevel↩currentLevel+1⋄moves↩⟨0‿0⟩}⍟(W (currentLevel⊑levels) S´⌽moves)@
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}
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•Out "Well played, you win!"
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•Out "[?12l[?25h"
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