mirror of
https://github.com/coding-horror/basic-computer-games.git
synced 2025-12-22 07:10:42 -08:00
Removed spaces from top-level directory names.
Spaces tend to cause annoyances in a Unix-style shell environment. This change fixes that.
This commit is contained in:
Chris Reuter
270
65_Nim/javascript/nim.js
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270
65_Nim/javascript/nim.js
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// NIM
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//
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// Converted from BASIC to Javascript by Oscar Toledo G. (nanochess)
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//
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function print(str)
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{
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document.getElementById("output").appendChild(document.createTextNode(str));
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}
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function input()
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{
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var input_element;
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var input_str;
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return new Promise(function (resolve) {
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input_element = document.createElement("INPUT");
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print("? ");
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input_element.setAttribute("type", "text");
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input_element.setAttribute("length", "50");
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document.getElementById("output").appendChild(input_element);
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input_element.focus();
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input_str = undefined;
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input_element.addEventListener("keydown", function (event) {
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if (event.keyCode == 13) {
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input_str = input_element.value;
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document.getElementById("output").removeChild(input_element);
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print(input_str);
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print("\n");
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resolve(input_str);
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}
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});
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});
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}
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function tab(space)
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{
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var str = "";
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while (space-- > 0)
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str += " ";
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return str;
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}
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var a = [];
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var b = [];
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var d = [];
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// Main program
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async function main()
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{
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print(tab(33) + "NIM\n");
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print(tab(15) + "CREATIVE COMPUTING MORRISTOWN, NEW JERSEY\n");
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print("\n");
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print("\n");
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print("\n");
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for (i = 1; i <= 100; i++) {
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a[i] = 0;
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b[i] = [];
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for (j = 0; j <= 10; j++)
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b[i][j] = 0;
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}
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d[0] = 0;
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d[1] = 0;
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d[2] = 0;
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print("DO YOU WANT INSTRUCTIONS");
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while (1) {
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str = await input();
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str = str.toUpperCase();
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if (str == "YES" || str == "NO")
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break;
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print("PLEASE ANSWER YES OR NO\n");
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}
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if (str == "YES") {
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print("THE GAME IS PLAYED WITH A NUMBER OF PILES OF OBJECTS.\n");
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print("ANY NUMBER OF OBJECTS ARE REMOVED FROM ONE PILE BY YOU AND\n");
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print("THE MACHINE ALTERNATELY. ON YOUR TURN, YOU MAY TAKE\n");
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print("ALL THE OBJECTS THAT REMAIN IN ANY PILE, BUT YOU MUST\n");
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print("TAKE AT LEAST ONE OBJECT, AND YOU MAY TAKE OBJECTS FROM\n");
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print("ONLY ONE PILE ON A SINGLE TURN. YOU MUST SPECIFY WHETHER\n");
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print("WINNING IS DEFINED AS TAKING OR NOT TAKING THE LAST OBJECT,\n");
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print("THE NUMBER OF PILES IN THE GAME, AND HOW MANY OBJECTS ARE\n");
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print("ORIGINALLY IN EACH PILE. EACH PILE MAY CONTAIN A\n");
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print("DIFFERENT NUMBER OF OBJECTS.\n");
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print("THE MACHINE WILL SHOW ITS MOVE BY LISTING EACH PILE AND THE\n");
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print("NUMBER OF OBJECTS REMAINING IN THE PILES AFTER EACH OF ITS\n");
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print("MOVES.\n");
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}
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while (1) {
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print("\n");
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while (1) {
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print("ENTER WIN OPTION - 1 TO TAKE LAST, 2 TO AVOID LAST");
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w = parseInt(await input());
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if (w == 1 || w == 2)
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break;
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}
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while (1) {
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print("ENTER NUMBER OF PILES");
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n = parseInt(await input());
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if (n >= 1 && n <= 100)
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break;
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}
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print("ENTER PILE SIZES\n");
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for (i = 1; i <= n; i++) {
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while (1) {
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print(i + " ");
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a[i] = parseInt(await input());
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if (a[i] >= 1 && a[i] <= 2000)
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break;
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}
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}
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print("DO YOU WANT TO MOVE FIRST");
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while (1) {
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str = await input();
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str = str.toUpperCase();
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if (str == "YES" || str == "NO")
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break;
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print("PLEASE ANSWER YES OR NO.\n");
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}
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if (str == "YES")
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player_first = true;
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else
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player_first = false;
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while (1) {
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if (!player_first) {
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if (w != 1) {
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c = 0;
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for (i = 1; i <= n; i++) {
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if (a[i] == 0)
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continue;
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c++;
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if (c == 3)
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break;
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d[c] = i;
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}
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if (i > n) {
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if (c == 2) {
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if (a[d[1]] == 1 || a[d[2]] == 1) {
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print("MACHINE WINS\n");
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break;
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}
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} else {
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if (a[d[1]] > 1)
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print("MACHINE WINS\n");
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else
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print("MACHINE LOSES\n");
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break;
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}
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} else {
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c = 0;
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for (i = 1; i <= n; i++) {
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if (a[i] > 1)
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break;
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if (a[i] == 0)
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continue;
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c++;
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}
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if (i > n && c % 2) {
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print("MACHINE LOSES\n");
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break;
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}
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}
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}
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for (i = 1; i <= n; i++) {
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e = a[i];
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for (j = 0; j <= 10; j++) {
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f = e / 2;
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b[i][j] = 2 * (f - Math.floor(f));
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e = Math.floor(f);
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}
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}
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for (j = 10; j >= 0; j--) {
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c = 0;
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h = 0;
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for (i = 1; i <= n; i++) {
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if (b[i][j] == 0)
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continue;
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c++;
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if (a[i] <= h)
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continue;
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h = a[i];
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g = i;
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}
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if (c % 2)
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break;
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}
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if (j < 0) {
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do {
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e = Math.floor(n * Math.random() + 1);
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} while (a[e] == 0) ;
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f = Math.floor(a[e] * Math.random() + 1);
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a[e] -= f;
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} else {
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a[g] = 0;
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for (j = 0; j <= 10; j++) {
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b[g][j] = 0;
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c = 0;
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for (i = 1; i <= n; i++) {
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if (b[i][j] == 0)
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continue;
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c++;
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}
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a[g] = a[g] + (c % 2) * Math.pow(2, j);
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}
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if (w != 1) {
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c = 0;
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for (i = 1; i <= n; i++) {
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if (a[i] > 1)
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break;
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if (a[i] == 0)
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continue;
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c++;
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}
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if (i > n && c % 2 == 0)
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a[g] = 1 - a[g];
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}
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}
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print("PILE SIZE\n");
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for (i = 1; i <= n; i++)
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print(" " + i + " " + a[i] + "\n");
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if (w != 2) {
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if (game_completed()) {
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print("MACHINE WINS");
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break;
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}
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}
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} else {
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player_first = false;
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}
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while (1) {
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print("YOUR MOVE - PILE , NUMBER TO BE REMOVED");
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str = await input();
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x = parseInt(str);
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y = parseInt(str.substr(str.indexOf(",") + 1));
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if (x < 1 || x > n)
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continue;
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if (y < 1 || y > a[x])
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continue;
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break;
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}
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a[x] -= y;
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if (game_completed()) {
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print("MACHINE LOSES");
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break;
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}
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}
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print("DO YOU WANT TO PLAY ANOTHER GAME");
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while (1) {
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str = await input();
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str = str.toUpperCase();
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if (str == "YES" || str == "NO")
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break;
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print("PLEASE ANSWER YES OR NO.\n");
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}
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if (str == "NO")
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break;
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}
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}
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function game_completed()
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{
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for (var i = 1; i <= n; i++) {
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if (a[i] != 0)
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return false;
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}
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return true;
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}
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main();
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