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The big mathematical news this month is that a polygon has been discovered that will tile the plane but only aperiodically. Penrose tiles achieve this with two tile types; it's been an open question for decades whether you could do it with only one tile. Now someone has announced the discovery of such a thing, so _obviously_ this mathematically exciting tiling ought to be one of the Loopy grid options! The polygon, named a 'hat' by its discoverers, consists of the union of eight cells of the 'Kites' periodic tiling that Loopy already implements. So all the vertex coordinates of the whole tiling are vertices of the Kites grid, which makes handling the coordinates in an exact manner a lot easier than Penrose tilings. What's _harder_ than Penrose tilings is that, although this tiling can be generated by a vaguely similar system of recursive expansion, the expansion is geometrically distorting, which means you can't easily figure out which tiles can be discarded early to save CPU. Instead I've come up with a completely different system for generating a patch of tiling, by using a hierarchical coordinate system to track a location within many levels of the expansion process without ever simulating the process as a whole. I'm really quite pleased with that technique, and am tempted to try switching the Penrose generator over to it too - except that we'd have to keep the old generator around to stop old game ids being invalidated, and also, I think it would be slightly trickier without an underlying fixed grid and without overlaps in the tile expansion system. However, before coming up with that, I got most of the way through implementing the more obvious system of actually doing the expansions. The result worked, but was very slow (because I changed approach rather than try to implement tree-pruning under distortion). But the code was reusable for two other useful purposes: it generated the lookup tables needed for the production code, and it also generated a lot of useful diagrams. So I've committed it anyway as a supporting program, in a new 'aux' source subdirectory, and in aux/doc is a writeup of the coordinate system's concepts, with all those diagrams. (That's the kind of thing I'd normally put in a huge comment at the top of the file, but doing all those diagrams in ASCII art would be beyond miserable.) From a gameplay perspective: the hat polygon has 13 edges, but one of them has a vertex of the Kites tiling in the middle, and sometimes two other tile boundaries meet at that vertex. I've chosen to represent every hat as having degree 14 for Loopy purposes, because if you only included that extra vertex when it was needed, then people would be forever having to check whether this was a 13-hat or a 14-hat and it would be nightmarish to play. Even so, there's a lot of clicking involved to turn all those fiddly individual edges on or off. This grid is noticeably nicer to play in 'autofollow' mode, by setting LOOPY_AUTOFOLLOW in the environment to either 'fixed' or 'adaptive'. I'm tempted to make 'fixed' the default, except that I think it would confuse players of ordinary square Loopy!
297 lines
8.5 KiB
CMake
297 lines
8.5 KiB
CMake
cmake_minimum_required(VERSION 3.5)
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project(puzzles
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LANGUAGES C)
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include(cmake/setup.cmake)
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add_library(common
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combi.c divvy.c drawing.c dsf.c findloop.c grid.c latin.c
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laydomino.c loopgen.c malloc.c matching.c midend.c misc.c penrose.c hat.c
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ps.c random.c sort.c tdq.c tree234.c version.c
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${platform_common_sources})
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include_directories(${CMAKE_CURRENT_SOURCE_DIR})
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puzzle(blackbox
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DISPLAYNAME "Black Box"
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DESCRIPTION "Ball-finding puzzle"
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OBJECTIVE "Find the hidden balls in the box by bouncing laser beams \
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off them.")
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puzzle(bridges
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DISPLAYNAME "Bridges"
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DESCRIPTION "Bridge-placing puzzle"
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OBJECTIVE "Connect all the islands with a network of bridges.")
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puzzle(cube
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DISPLAYNAME "Cube"
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DESCRIPTION "Rolling cube puzzle"
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OBJECTIVE "Pick up all the blue squares by rolling the cube over them.")
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puzzle(dominosa
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DISPLAYNAME "Dominosa"
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DESCRIPTION "Domino tiling puzzle"
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OBJECTIVE "Tile the rectangle with a full set of dominoes.")
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solver(dominosa)
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puzzle(fifteen
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DISPLAYNAME "Fifteen"
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DESCRIPTION "Sliding block puzzle"
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OBJECTIVE "Slide the tiles around to arrange them into order.")
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solver(fifteen)
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puzzle(filling
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DISPLAYNAME "Filling"
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DESCRIPTION "Polyomino puzzle"
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OBJECTIVE "Mark every square with the area of its containing region.")
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solver(filling)
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puzzle(flip
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DISPLAYNAME "Flip"
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DESCRIPTION "Tile inversion puzzle"
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OBJECTIVE "Flip groups of squares to light them all up at once.")
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puzzle(flood
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DISPLAYNAME "Flood"
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DESCRIPTION "Flood-filling puzzle"
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OBJECTIVE "Turn the grid the same colour in as few flood fills as possible.")
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puzzle(galaxies
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DISPLAYNAME "Galaxies"
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DESCRIPTION "Symmetric polyomino puzzle"
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OBJECTIVE "Divide the grid into rotationally symmetric regions each \
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centred on a dot.")
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solver(galaxies)
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cliprogram(galaxiespicture galaxies.c
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COMPILE_DEFINITIONS STANDALONE_PICTURE_GENERATOR)
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guiprogram(galaxieseditor galaxies.c
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COMPILE_DEFINITIONS EDITOR)
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puzzle(guess
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DISPLAYNAME "Guess"
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DESCRIPTION "Combination-guessing puzzle"
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OBJECTIVE "Guess the hidden combination of colours.")
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puzzle(inertia
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DISPLAYNAME "Inertia"
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DESCRIPTION "Gem-collecting puzzle"
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OBJECTIVE "Collect all the gems without running into any of the mines.")
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puzzle(keen
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DISPLAYNAME "Keen"
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DESCRIPTION "Arithmetic Latin square puzzle"
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OBJECTIVE "Complete the latin square in accordance with the \
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arithmetic clues.")
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solver(keen latin.c)
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puzzle(lightup
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DISPLAYNAME "Light Up"
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DESCRIPTION "Light-bulb placing puzzle"
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OBJECTIVE "Place bulbs to light up all the squares.")
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solver(lightup)
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puzzle(loopy
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DISPLAYNAME "Loopy"
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DESCRIPTION "Loop-drawing puzzle"
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OBJECTIVE "Draw a single closed loop, given clues about number of \
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adjacent edges.")
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solver(loopy)
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puzzle(magnets
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DISPLAYNAME "Magnets"
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DESCRIPTION "Magnet-placing puzzle"
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OBJECTIVE "Place magnets to satisfy the clues and avoid like poles \
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touching.")
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solver(magnets)
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puzzle(map
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DISPLAYNAME "Map"
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DESCRIPTION "Map-colouring puzzle"
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OBJECTIVE "Colour the map so that adjacent regions are never the \
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same colour.")
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solver(map)
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puzzle(mines
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DISPLAYNAME "Mines"
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DESCRIPTION "Mine-finding puzzle"
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OBJECTIVE "Find all the mines without treading on any of them.")
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cliprogram(mineobfusc mines.c COMPILE_DEFINITIONS STANDALONE_OBFUSCATOR)
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puzzle(mosaic
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DISPLAYNAME "Mosaic"
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DESCRIPTION "Grid-filling puzzle"
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OBJECTIVE "Fill in the grid given clues about number of \
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nearby black squares.")
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puzzle(net
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# The Windows Net shouldn't be called 'net.exe', since Windows
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# already has a reasonably important utility program by that name!
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WINDOWS_EXE_NAME netgame
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DISPLAYNAME "Net"
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DESCRIPTION "Network jigsaw puzzle"
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OBJECTIVE "Rotate each tile to reassemble the network.")
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puzzle(netslide
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DISPLAYNAME "Netslide"
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DESCRIPTION "Toroidal sliding network puzzle"
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OBJECTIVE "Slide a row at a time to reassemble the network.")
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puzzle(nullgame)
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puzzle(palisade
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DISPLAYNAME "Palisade"
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DESCRIPTION "Grid-division puzzle"
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OBJECTIVE "Divide the grid into equal-sized areas in accordance with\
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the clues.")
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puzzle(pattern
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DISPLAYNAME "Pattern"
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DESCRIPTION "Pattern puzzle"
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OBJECTIVE "Fill in the pattern in the grid, given only the lengths \
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of runs of black squares.")
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solver(pattern)
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cliprogram(patternpicture pattern.c
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COMPILE_DEFINITIONS STANDALONE_PICTURE_GENERATOR)
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puzzle(pearl
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DISPLAYNAME "Pearl"
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DESCRIPTION "Loop-drawing puzzle"
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OBJECTIVE "Draw a single closed loop, given clues about corner and \
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straight squares.")
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solver(pearl)
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cliprogram(pearlbench pearl.c COMPILE_DEFINITIONS STANDALONE_SOLVER)
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puzzle(pegs
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DISPLAYNAME "Pegs"
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DESCRIPTION "Peg solitaire puzzle"
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OBJECTIVE "Jump pegs over each other to remove all but one.")
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puzzle(range
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DISPLAYNAME "Range"
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DESCRIPTION "Visible-distance puzzle"
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OBJECTIVE "Place black squares to limit the visible distance from \
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each numbered cell.")
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puzzle(rect
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DISPLAYNAME "Rectangles"
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DESCRIPTION "Rectangles puzzle"
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OBJECTIVE "Divide the grid into rectangles with areas equal to the \
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numbers.")
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puzzle(samegame
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DISPLAYNAME "Same Game"
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DESCRIPTION "Block-clearing puzzle"
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OBJECTIVE "Clear the grid by removing touching groups of the same \
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colour squares.")
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puzzle(signpost
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DISPLAYNAME "Signpost"
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DESCRIPTION "Square-connecting puzzle"
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OBJECTIVE "Connect the squares into a path following the arrows.")
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solver(signpost)
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puzzle(singles
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DISPLAYNAME "Singles"
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DESCRIPTION "Number-removing puzzle"
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OBJECTIVE "Black out the right set of duplicate numbers.")
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solver(singles)
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puzzle(sixteen
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DISPLAYNAME "Sixteen"
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DESCRIPTION "Toroidal sliding block puzzle"
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OBJECTIVE "Slide a row at a time to arrange the tiles into order.")
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puzzle(slant
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DISPLAYNAME "Slant"
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DESCRIPTION "Maze-drawing puzzle"
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OBJECTIVE "Draw a maze of slanting lines that matches the clues.")
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solver(slant)
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puzzle(solo
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DISPLAYNAME "Solo"
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DESCRIPTION "Number placement puzzle"
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OBJECTIVE "Fill in the grid so that each row, column and square \
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block contains one of every digit.")
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solver(solo)
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puzzle(tents
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DISPLAYNAME "Tents"
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DESCRIPTION "Tent-placing puzzle"
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OBJECTIVE "Place a tent next to each tree.")
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solver(tents)
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puzzle(towers
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DISPLAYNAME "Towers"
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DESCRIPTION "Tower-placing Latin square puzzle"
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OBJECTIVE "Complete the latin square of towers in accordance with \
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the clues.")
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solver(towers latin.c)
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puzzle(tracks
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DISPLAYNAME "Tracks"
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DESCRIPTION "Path-finding railway track puzzle"
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OBJECTIVE "Fill in the railway track according to the clues.")
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solver(tracks)
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puzzle(twiddle
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DISPLAYNAME "Twiddle"
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DESCRIPTION "Rotational sliding block puzzle"
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OBJECTIVE "Rotate the tiles around themselves to arrange them into order.")
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puzzle(undead
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DISPLAYNAME "Undead"
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DESCRIPTION "Monster-placing puzzle"
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OBJECTIVE "Place ghosts, vampires and zombies so that the right \
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numbers of them can be seen in mirrors.")
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puzzle(unequal
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DISPLAYNAME "Unequal"
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DESCRIPTION "Latin square puzzle"
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OBJECTIVE "Complete the latin square in accordance with the > signs.")
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solver(unequal latin.c)
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puzzle(unruly
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DISPLAYNAME "Unruly"
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DESCRIPTION "Black and white grid puzzle"
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OBJECTIVE "Fill in the black and white grid to avoid runs of three.")
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solver(unruly)
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puzzle(untangle
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DISPLAYNAME "Untangle"
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DESCRIPTION "Planar graph layout puzzle"
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OBJECTIVE "Reposition the points so that the lines do not cross.")
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add_subdirectory(unfinished)
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add_subdirectory(aux)
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cliprogram(obfusc obfusc.c)
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cliprogram(latincheck latin.c COMPILE_DEFINITIONS STANDALONE_LATIN_TEST)
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cliprogram(matching matching.c COMPILE_DEFINITIONS STANDALONE_MATCHING_TEST)
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cliprogram(combi combi.c COMPILE_DEFINITIONS STANDALONE_COMBI_TEST)
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cliprogram(divvy divvy.c COMPILE_DEFINITIONS TESTMODE)
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cliprogram(hat-test hat.c COMPILE_DEFINITIONS TEST_HAT)
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cliprogram(penrose-test penrose.c COMPILE_DEFINITIONS TEST_PENROSE)
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cliprogram(penrose-vector-test penrose.c COMPILE_DEFINITIONS TEST_VECTORS)
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cliprogram(sort-test sort.c COMPILE_DEFINITIONS SORT_TEST)
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cliprogram(tree234-test tree234.c COMPILE_DEFINITIONS TEST)
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if(build_cli_programs)
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write_generated_games_header()
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include(CheckFunctionExists)
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check_function_exists(HF_ITER HAVE_HF_ITER)
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set(WITH_LIBFUZZER OFF
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CACHE BOOL "Build fuzzpuzz using Clang's libFuzzer")
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cliprogram(fuzzpuzz fuzzpuzz.c list.c ${puzzle_sources}
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COMPILE_DEFINITIONS COMBINED $<$<BOOL:${WITH_LIBFUZZER}>:OMIT_MAIN>
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$<$<BOOL:${HAVE_HF_ITER}>:HAVE_HF_ITER>)
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target_include_directories(fuzzpuzz PRIVATE ${generated_include_dir})
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if(WITH_LIBFUZZER)
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target_compile_options(fuzzpuzz PRIVATE -fsanitize=fuzzer)
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set_target_properties(fuzzpuzz PROPERTIES LINK_FLAGS -fsanitize=fuzzer)
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endif()
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endif()
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build_extras()
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