![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to ttext1.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [CSRG BSD Unix] / 42BSD / games / backgammon|
Return to ttext1.c CVS log | Up to [CSRG BSD Unix] / 42BSD / games / backgammon |
1.1 root 1: static char sccsid[] = " ttext1.c 4.1 82/05/11 ";
2:
3: #include "back.h"
4:
5: char *opts = " QIMRHEDSPT";
6: char *prompt = "-->";
7:
8: char *list[] = {
9: "\n\n\tI\tIntroduction to Backgammon",
10: "\tM\tMoves and Points",
11: "\tR\tRemoving Men from the Board",
12: "\tH\tHitting Blots",
13: "\tE\tEnding the Game and Scoring",
14: "\tD\tDoubling",
15: "\tS\tStrategy",
16: "\tP\tThe Program and How to Use It",
17: "\nalso, you can type:",
18: "\t?\tto get this list",
19: "\tQ\tto go start playing",
20: "\tT\tto go straight to the tutorial",
21: 0
22: };
23:
24: char *hello[] = {
25: "\n\032 These rules consist of text describing how to play Backgammon",
26: "followed by a tutorial session where you play a practice game",
27: "against the computer. When using this program, think carefuly",
28: "before typing, since it reacts as soon as you type something. In",
29: "addition, the program presents text output, such as these rules,",
30: "in small blocks that will not roll off the top of the screen.",
31: "Frequently, you will see the characters '-->' indicating that the",
32: "program is waiting for you to finish reading, and will continue",
33: "printing when you type a space or newline. Also, the rules are",
34: "divided into sections, and although you should read them in or-",
35: "der, you can go directly to any of them by typing one of the fol-",
36: "lowing letters:",
37: "(Remember to hit a space or a newline to continue.)",
38: "",
39: 0
40: };
41:
42: char *intro1[] = {
43: "\nIntroduction:",
44: "\n Backgammon is a game involving the skill of two players and",
45: "the luck of two dice. There are two players, red and white, and",
46: "each player gets fifteen men. The object of the game is to re-",
47: "move all your men from the board before the opponent does. The",
48: "board consists of twenty-four positions, a 'bar' and a 'home' for",
49: "each player. It looks like this:",
50: "",
51: 0};
52:
53: char *intro2[] = {
54: "",
55: "\n Although not indicated on the board, the players' homes are",
56: "located just to the right of the board. A player's men are placed",
57: "there when they are removed from the board. The board you just",
58: "saw was in it's initial position. All games start with the board",
59: "looking like this. Notice that red's pieces are represented by the",
60: "letter 'r' and white's pieces are represented by the letter 'w'.",
61: "Also, a position may have zero or more pieces on it, e.g. posi-",
62: "tion 12 has five red pieces on it, while position 11 does not",
63: "have any pieces of either color.",
64: "",
65: 0};
66:
67: char *moves[] = {
68: "\nMoves and Points:",
69: "\n Moves are made along the positions on the board according to",
70: "their numbers. Red moves in the positive direction (clockwise",
71: "from 1 to 24), and white moves in the negative direction (coun-",
72: "terclockwise from 24 to 1).",
73: "\n A turn consists of rolling the dice, and moving the number of",
74: "positions indicated on each die. The two numbers can be used to",
75: "move one man the sum of the two rolls, or two men the number on",
76: "each individual die. For example, if red rolled 6 3 at the start",
77: "of the game, he might move a man from 1 to 7 to 10, using both",
78: "dice for one man, or he might move two men from position 12, one",
79: "to 15 and one to 18. (Red did not have to choose two men start-",
80: "ing from the same position.) In addition, doubles are treated",
81: "specially in backgammon. When a player rolls doubles, he gets to",
82: "move as if he had four dice instead of two. For instance, if you",
83: "rolled double 2's, you could move one man eight positions, four",
84: "men two positions each, or any permutation in between.",
85: "",
86: "\n However, there are certain limitations, called 'points.' A",
87: "player has a point when he has two or more men on the same posi-",
88: "tion. This gives him custody of that position, and his opponent",
89: "cannot place his men there, even if passing through on the way to",
90: "another position. When a player has six points in a row, it is",
91: "called a 'wall,' since any of his opponent's men behind the wall",
92: "cannot pass it and are trapped, at least for the moment. Notice",
93: "that this could mean that a player could not use part or all of",
94: "his roll. However, he must use as much of his roll as possible.",
95: "",
96: 0};
97:
98: char *remove[] = {
99: "\nRemoving Men from the Board:",
100: "\n The most important part of the game is removing men, since",
101: "that is how you win the game. Once a man is removed, he stays",
102: "off the board for the duration of the game. However, a player",
103: "cannot remove men until all his men are on his 'inner table,' or",
104: "the last six positions of the board (19-24 for red, 6-1 for",
105: "white).",
106: "\n To get off the board, a player must roll the exact number to",
107: "get his man one position past the last position on the board, or",
108: "his 'home.' Hence, if red wanted to remove a man from position",
109: "23, he would have to roll a 2, anything else would be used for",
110: "another man, or for another purpose. However, there is one ex-",
111: "ception. If the player rolling has no men far enough to move the",
112: "roll made, he may move his farthest man off the board. For exam-",
113: "ple, if red's farthest man back was on position 21, he could re-",
114: "move men from that position if he rolled a 5 or a 6, as well as a",
115: "4. Since he does not have men on 20 (where he could use a 5) or",
116: "on 19 (where he could use a 6), he can use these rolls for posi-",
117: "tion 21. A player never has to remove men, but he must make as",
118: "many moves as possible.",
119: "",
120: 0};
121:
122: char *hits[] = {
123: "\nHitting Blots:",
124: "\n Although two men on a position form an impenetrable point, a",
125: "lone man is not so secure. Such a man is called a 'blot' and has",
126: "the potential of getting hit by an opposing man. When a player's",
127: "blot is hit, he is placed on the bar, and the first thing that",
128: "player must do is move the man off the bar. Such moves are",
129: "counted as if the bar is one position behind the first position",
130: "on the board. Thus if red has a man on the bar and rolls 2 3, he",
131: "must move the man on the bar to position 2 or 3 before moving any",
132: "other man. If white had points on positions 2 and 3, then red",
133: "would forfeit his turn. Being on the bar is a very bad position,",
134: "for often a player can lose many turns trying to move off the",
135: "bar, as well as being set back the full distance of the board.",
136: "",
137: 0};
138:
139: char *endgame[] = {
140: "\nEnding the Game and Scoring:",
141: "\n Winning a game usually wins one point, the normal value of a",
142: "game. However, if the losing player has not removed any men yet,",
143: "then the winning player wins double the game value, called a",
144: "'gammon.' If the losing player has a player on the bar or on the",
145: "winner's inner table, then the winner gets triple the game value,",
146: "which is called a 'backgammon.' (So that's where the name comes",
147: "from!)",
148: "",
149: 0};
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.