代写 Python Game程序、Game程序代写代做

日期：2018-05-03 03:36

Rules of the Game

Watch Your Back! is a fast-paced combat board game. You control a team of ruthless rogues

engaged in a fight to the death against your enemies. Within the confines of a checkerboard

there is no rulebook and no referee, and the easiest way to a cut down an enemy is to stab

them in the back. Control your lawless warriors to jump and slash their way around the board

surrounding and silencing your enemies until none remain. And, of course, watch your back!

Board

Watch Your Back! plays on an 8x8 board made of 64 squares. Squares are labelled by

their column and row numbers, starting with square (0,0) in the top-left corner of the board.

Column indices increase to the right, and row indices increase down the board.

0 1 2 3 4 5 6 7

0 0,0 1,0 2,0 3,0 4,0 5,0 6,0 7,0

1 0,1 1,1 2,1 3,1 4,1 5,1 6,1 7,1

2 0,2 1,2 2,2 3,2 4,2 5,2 6,2 7,2

3 0,3 1,3 2,3 3,3 4,3 5,3 6,3 7,3

4 0,4 1,4 2,4 3,4 4,4 5,4 6,4 7,4

5 0,5 1,5 2,5 3,5 4,5 5,5 6,5 7,5

6 0,6 1,6 2,6 3,6 4,6 5,6 6,6 7,6

7 0,7 1,7 2,7 3,7 4,7 5,7 6,7 7,7

Figure 1: Squares of the board, labelled to demonstrate the coordinate system.

In addition, the special squares (0,0), (7,0), (0,7) and (7,7) are called corner squares.

Gameplay

Two players (Black and White) play the game. Each player controls 12 pieces (each piece

represents one ‘fighter’ on a player’s ‘team’). Initially, there are no pieces on the board. In

the first part of the game, the players take turns placing their pieces onto the board during a

placing phase. Then the players take turns moving their pieces around the board during a

moving phase. In both phases, players can eliminate opponent pieces by surrounding

them with two of their own pieces (the surrounded ‘fighter’ will be ‘stabbed in the back’). The

aim of the game is to eliminate all of the opponent’s pieces.

The details of the placing phase, the moving phase, piece elimination and winning the game

are all explained throughout the rest of these rules. Read on!

Placing phase

The game starts with a placing phase. In the placing phase, players take turns putting their

pieces on the board. White has the first turn in the placing phase.

On each turn, one player places one piece in any unoccupied square within their starting

zone. White’s starting zone includes all squares in the top 6 rows of the board except for the

top corners (0,0) and (7,0) (figure 2a). Black’s starting zone includes all squares in the

bottom 6 rows except for the bottom corners (0,7) and (7,7) (figure 2b).

0,0 1,0 2,0 3,0 4,0 5,0 6,0 7,0 0,0 1,0 2,0 3,0 4,0 5,0 6,0 7,0

0,1 1,1 2,1 3,1 4,1 5,1 6,1 7,1 0,1 1,1 2,1 3,1 4,1 5,1 6,1 7,1

0,2 1,2 2,2 3,2 4,2 5,2 6,2 7,2 0,2 1,2 2,2 3,2 4,2 5,2 6,2 7,2

0,3 1,3 2,3 3,3 4,3 5,3 6,3 7,3 0,3 1,3 2,3 3,3 4,3 5,3 6,3 7,3

0,4 1,4 2,4 3,4 4,4 5,4 6,4 7,4 0,4 1,4 2,4 3,4 4,4 5,4 6,4 7,4

0,5 1,5 2,5 3,5 4,5 5,5 6,5 7,5 0,5 1,5 2,5 3,5 4,5 5,5 6,5 7,5

0,6 1,6 2,6 3,6 4,6 5,6 6,6 7,6 0,6 1,6 2,6 3,6 4,6 5,6 6,6 7,6

0,7 1,7 2,7 3,7 4,7 5,7 6,7 7,7 0,7 1,7 2,7 3,7 4,7 5,7 6,7 7,7

Figure 2a: White’s starting zone Figure 2b: Black’s starting zone

Each starting zone includes all of the squares shaded in grey.

When a player places a piece, zero or more pieces may be eliminated. A piece is eliminated

if it is surrounded on two sides (horizontally or vertically) by enemy pieces or corners.

For example: Figure 3a shows a Black piece surrounded vertically by two White pieces. The

Black piece is eliminated. Figure 3b shows a White piece surrounded horizontally by two

Black pieces. The White piece is eliminated. Figure 3c shows a Black piece surrounded

vertically by a White piece and a corner. The Black piece is eliminated.

W W

B B W B B

W X

(a) (b) (c)

Figure 3: Three configurations that will lead to the elimination of a piece.

Black pieces are marked with B, White pieces with W, and corner squares with X.

A piece is not eliminated if it is surrounded diagonally or on two sides that are not vertically

or horizontally opposite. A piece is not eliminated if it is surrounded by non-enemy pieces.

For example, figure 4a shows a Black piece surrounded diagonally by two White pieces.

The Black piece is not eliminated. Figure 4b shows a White piece surrounded by two Black

pieces; one above and one on the left. This White piece is not eliminated. Figure 4c shows

a Black piece surrounded horizontally by one White piece (on its right) and one Black piece

(on its left). The surrounded Black piece is not eliminated.

W B

B B W B B W

W

(a) (b) (c)

Figure 4: Three configurations that will not lead to the elimination of a piece.

Black pieces are marked with B, White pieces with W.

Placing a single piece may eliminate multiple enemy pieces if it causes them all to become

surrounded as per the above description. For example, if White places a piece in the square

marked 1 in figure 5a, both the Black pieces will be eliminated.

Placing a piece may lead to the piece itself being eliminated if it is placed on a square that

is already surrounded. For example, if Black places a piece in the square marked 2 in figure

5b, this piece will be surrounded by White pieces and will be eliminated immediately.

However, a piece always gets to surround and eliminate nearby pieces before it is eliminated

itself. For example, if Black places a piece in the square marked 3 in figure 5b, this piece is

not eliminated because it will surround and eliminate the White piece on its left first.

W W

B 2

1 B W B W 3 W

(a) (b)

Figure 5: Two notable configurations that demonstrate special cases in the elimination rules.

Black pieces are marked with B, White pieces with W.

Once each player has placed 12 pieces on the board (regardless of how many of their pieces

remain on the board), the placing phase ends and the game continues to the moving phase.

Moving phase

In the moving phase, players take turns moving their pieces around the board. Like in the

placing phase, White has the first turn in the moving phase.

On each turn, one player moves one of their own pieces into a nearby unoccupied square.

An unoccupied square is any non-corner square without a Black or White piece. In the

moving phase, either player can move their pieces to squares outside of their starting zone.

A player can move their piece to a square above, below, or to the right or left of its current

square (as long as these squares are unoccupied). They cannot move a piece diagonally.

For example, in figure 6a, the White player can move their right piece up into the square

marked 1. They cannot move it down because the square below its current square is a

corner square. They cannot move it left because the square to its left is occupied by another

White piece. They cannot move it right because there is no square to its right. The White

player can move the left White piece up into the square marked 2. They cannot move it left,

right or down because the corresponding squares are all occupied by White or Black pieces.

2 1 8 1 2

B W W 7 W W B 3

B X 6 5 W 4

(a) (b)

Figure 6: Two board configurations showing available squares for White pieces to move to.

Black pieces are marked with B, White pieces with W, and corner squares with X.

A player may instead make their piece jump over a horizontally or vertically adjacent piece

into the square opposite that piece (as long as the opposite square is unoccupied).

For example, in figure 6b, the White player can move their middle piece into either of the

squares marked 1 and 5, as per the above description. However, they may alternatively

make this piece jump over the Black piece to its right into the square marked 3. Or, they can

jump over the leftmost White piece into the square marked 7. Similarly, the rightmost White

piece can move left or right (into the 5 and 4 squares), or jump over the Black piece into the

square marked 2 on the other side of the Black piece. The White player can move the

leftmost White piece down, left or up (into 6, 7 or 8). However, this piece cannot jump over

the White piece to its right because the opposite square is occupied (by the Black piece).

It is possible that none of a player’s pieces will have any available squares to move to on

the player’s turn. If this is the case, the player must forfeit their move and play continues

with the other player’s next turn. In all other cases, a player must make exactly one move

(one regular move or one jump) on each of their turns in the movement phase.

Each time a player moves a piece, zero or more pieces may be eliminated according to the

same rules as for elimination in the placing phase.

After 128 moves take place in the movement phase including any forfeited moves (after 64

moves for each player) the board shrinks: The outermost squares are removed from the

board and the squares (1,1), (6,1), (1,6) and (6,6) become corner squares. Any pieces

located on any of these squares are eliminated (affected squares are shaded in figure 7a).

0,0 1,0 2,0 3,0 4,0 5,0 6,0 7,0 0,0 1,0 2,0 3,0 4,0 5,0 6,0 7,0

0,1 1,1 2,1 3,1 4,1 5,1 6,1 7,1 0,1 1,1 2,1 3,1 4,1 5,1 6,1 7,1

0,2 1,2 2,2 3,2 4,2 5,2 6,2 7,2 0,2 1,2 2,2 3,2 4,2 5,2 6,2 7,2

0,3 1,3 2,3 3,3 4,3 5,3 6,3 7,3 0,3 1,3 2,3 3,3 4,3 5,3 6,3 7,3

0,4 1,4 2,4 3,4 4,4 5,4 6,4 7,4 0,4 1,4 2,4 3,4 4,4 5,4 6,4 7,4

0,5 1,5 2,5 3,5 4,5 5,5 6,5 7,5 0,5 1,5 2,5 3,5 4,5 5,5 6,5 7,5

0,6 1,6 2,6 3,6 4,6 5,6 6,6 7,6 0,6 1,6 2,6 3,6 4,6 5,6 6,6 7,6

0,7 1,7 2,7 3,7 4,7 5,7 6,7 7,7 0,7 1,7 2,7 3,7 4,7 5,7 6,7 7,7

Figure 7a: Death zone 128 Figure 7b: Death zone 192

Any pieces on shaded squares are eliminated. The lightly shaded squares are

removed from the board. The darker shaded squares become corner squares.

After a further 64 moves take place (so after a total of 192 moves, or 96 moves each), the

board shrinks again: The outermost remaining squares are removed from the board and the

squares (2,2), (2,5), (5,2) and (5,5) become corner squares. Again, any pieces located on

any of these squares are eliminated (affected squares are shaded in figure 7b).

The transformation of squares into corner squares during this shrinking process may result

in zero or more pieces being eliminated. The rules for these new corner squares eliminating

pieces are the same as the rules for placing enemy pieces during the placing phase. That

is, a piece next to a new corner square is eliminated if there is an enemy piece on its opposite

side (the side opposite the new corner piece). New corner squares eliminate nearby pieces

in order starting with the top-left new corner square and proceeding counter-clockwise

around the board. That is, the new corner squares eliminate nearby squares in the order:

top-left, bottom-left, bottom-right, top-right.

End of the game

The game ends if either player has fewer than 2 pieces remaining. In this case, the player

with 2 or more pieces remaining wins the game. If both players have fewer than 2 pieces

remaining as a result of the same turn (for example, due to multiple pieces being eliminated

during the shrinking of the board), then the game ends in a tie.

Questions and clarifications

If you have any questions about the rules of Watch Your Back! please direct them to the

LMS Discussion Board. Furthermore, please note that this document is subject to

corrections and clarifications which will be published through the LMS.