Feature list : Game Play

From Sokoban Wiki

Contents  [show all] 1. General Information 1.1 Platforms 1.2 Limits 1.3 Game Types 2. Game Play 3. Customizing 4. Skin Features 5. Map Viewing 6. Level Management 7. Moves Management 8. Web-based Support 9. Multi-player Mode 10. Miscellaneous 11. Additional Tools 11.1 Additional Tools : Level Editor 11.2 Additional Tools : Solver 11.3 Additional Tools : Optimizer 11.4 Additional Tools : Duplicate Finder

Game Play

Game Play						Game Play
	Sokoban YASC	Sokoban++	JSoko	Sokoban for Windows	YSokoban	SokoSave Desktop
autosave best solutions	yes tiebreaking: moves, pushes, secondary metrics	yes tiebreaking: moves, pushes	no	yes tiebreaking: moves, pushes	yes tiebreaking: moves, pushes, secondary metrics	no
autosave solutions options	always autosaves better solutions; inferior solutions are discarded	autosave solutions options: never/always/if better/ask; existing solutions are kept	no	autosave solutions options: none/best 5/best 10/all	always autosaves better solutions; inferior solutions are discarded	optionally saves game when solved; only one solution per saved game
push or move optimized pathfinding	yes	yes	yes	yes	yes	yes
move animation modes	smooth, cell by cell, instant	cell by cell, instant	cell by cell	smooth	cell by cell, instant [info](instant with choice points is listed but is too fast to be useful)	cell by cell, instant
mouse move control: drag and drop	yes with reachable squares	yes without reachable squares	yes with reachable squares	yes with reachable squares	yes with reachable squares	no
mouse move control: select and drop	yes with reachable squares	yes with reachable squares	yes with reachable squares	yes with reachable squares	yes with reachable squares	yes without reachable squares
mouse move control: drag and track	no experimental click-less tracking available	no	no	no	no	yes
reverse mode play starting at end position (pull instead of push)	yes	no	no	no	no	no
show secondary metrics (box-pushes, box-changes and pushing-sessions)	yes display: mouse over	yes display: optional, configurable	no	no	yes	yes
show a lowerbound of the solution length	no	no	yes	no	no	no
timing	yes optional; optional idle time threshold	no	no	no	no	no
move player through boxes	no	no	yes	no	yes target: reachable squares through boxes. figure: small black square. via: options -> go through boxes.	no
Game Play : Legal moves						Game Play : Legal moves
	Sokoban YASC	Sokoban++	JSoko	Sokoban for Windows	YSokoban	SokoSave Desktop
show player's reachable squares	yes figure: transparent small skin graphics	no	yes figure: transparent small skin graphics	yes	yes figure: small round blobs	no
show box's reachable squares	yes figure: transparent small skin graphics	yes figure: skin graphics, independent of box	yes figure: transparent small skin graphics	yes	yes figure: small round blobs	no
show pushable boxes	yes dynamically by clicking a wall. figure: configurable border	no	no	no	yes permanent with CTRL+F9. dynamically by clicking a wall. figure: skin graphics, independent of box	no
show dead squares	yesfigure: configurable shaded square	no	yesfigure: darker shaded square	no	no	no
simple deadlock detection	yes dead squares, freezing boxes	no	yes dead squares, freezing boxes	no	no	no
advanced deadlock detection	yes [info]bipartite: n boxes for m goals; 1 goal for n boxes; corrals: precalculated at level load time + 100 ms search after a push	no	yes	no	no	no
Game Play : History						Game Play : History
	Sokoban YASC	Sokoban++	JSoko	Sokoban for Windows	YSokoban	SokoSave Desktop
undo/redo	unlimited	unlimited	unlimited	unlimited	unlimited	unlimited
undo all	yes	yes	yes	yes	yes press [esc]	yes
redo all	yes	no	yes	no	no	yes
replay	yes forwards and backwards	yes forwards	yes forwards	yes forwards and backwards	yes forwards (solutions only)	yes
replay ergonomics	unified start/stop button; click anywhere to stop; keyboard shortcuts available; speed and direction can be changed during replay	separate start/stop buttons; click stop-button to stop; keyboard shortcuts available	unified start/stop button; click anywhere to stop; speed can be changed during replay		with start/stop: CTRL+F2 to begin. SPACE to replay to next box-change. without start/stop: F2	trackbar represents replay history; drag trackbar to control replay; click anywhere, click [stop] button, or press [esc] to stop
mousewheel undo/redo/replay support	yes combined moves	yes single step or optional combined moves	yes combined moves	no	yes combined moves	no
browse move history	yes trackbar (choice-points, with preview)	yes trackbar (all moves, with preview)	yes trackbar (choice-points, with preview)	no	no	yes trackbar (all moves, no preview)
quicksave slots	yes unlimited (interface: graphical, window, thumbnail preview)	yes unlimited (interface: graphical, pop-up, list)	no	yes 3 (interface: graphical)	no	no
one-click load quicksaves	yes keyboard: press [Enter] to load currently selected snapshot; mouse: double-click a snapshot on the list	no	no	yes	no	no
remember last session	yes file, level, history with redo, position [info]position is optional, default "off", additionally, up to 25 recent (file, level)	yes file, level	yes file, level	yes file, level, history without redo, position	yes file, level, history without redo, position	no
	Sokoban YASC	Sokoban++	JSoko	Sokoban for Windows	YSokoban	SokoSave Desktop

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Info

Choice points

A choice point in the game is when the player changes from one box to another, or finishes a series of moves that pushed a box in a single direction.

Several programs have replay features related to choice points. Sokofan, for example, has replay buttons (called "smart do/undo") to move from one choice point to another. Another example is the game history browser in Sokoban YASC which works with choice points instead of individual moves.

Mouse Move Control: Select and drop

Lift and drop. Left click on a box to lift it, move to the wanted position and left click again to drop. Lift and drop is easier for long moves than the drag and drop.

Mouse Move Control: Drag and track

Point at the pusher with the mouse and move it in the direction you want. The pusher will track your movements.

Simple deadlock detection

Simple deadlock detection deals with deadlock types that require rather simple analysis of the board and the game state. Good examples are:

• Dead squares

• Freeze deadlocks

Advanced deadlock detection

Advanced deadlock detection deals with deadlock types that require quite sophisticated computations. Good examples are:

• Bipartite deadlocks

• Corral deadlocks

Lowerbound of solution length regarding pushes

For solving a level all boxes have to be pushed to goals. A program can calculate the distance of every box to the nearest goal. While doing this it is presumed only one box is on the board (hence the box does not need to be pushed around other boxes). The sum of all these box distances to their goals results in a lowerbound - no matter how the boxes are pushed to their goals the level can never be solved with fewer than the calculated number of pushes. Some programs can calculate a lowerbound for the solution length (in pushes):
number of pushes so far + sum of all box distances to their nearest goals (presuming no other boxes are on the board).
This lowerbound can be useful in levels like the "Kobus Theron"-series.

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