81 lines
2.0 KiB
C
81 lines
2.0 KiB
C
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#include "common.h"
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#include <cbm_petscii_charmap.h>
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int matches; // number of matches remaining
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int take; // # of matches to take on this turn
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void print_matches() {
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printf("\nThere are %d matches left.\n", matches);
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}
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void human_moves() {
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print_matches();
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// loop until we get a valid move
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while (1) {
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printf("\n>> Your turn. Take 1, 2, or 3 matches?");
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// did we get exactly one input value?
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if (scanf("%d", &take) == 1) {
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// is it between 1 and 3?
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if (take >= 1 && take <= 3) {
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// are there not enough matches?
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if (take > matches) {
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printf("Not enough matches! Try again.\n");
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continue; // go back to start of loop
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} else {
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// take the appropriate number of matches
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printf("You took %d matches.\n", take);
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matches -= take;
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break; // break out of loop
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}
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}
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}
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printf("Bad input! Type a number from 1 to 3.\n");
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}
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}
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void computer_moves() {
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print_matches();
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// simple AI: hard coded if 1-4 matches left
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// otherwise take random number from 1 to 3
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switch (matches) {
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case 1: take = 1; break;
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case 2: take = 1; break;
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case 3: take = 2; break;
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case 4: take = 3; break;
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default: take = (rand() % 3) + 1; break;
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}
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printf("\n<< My turn. I'll take %d matches.\n", take);
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matches -= take;
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}
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void play_game(void) {
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printf(
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"When it is your turn, you may take\n"
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"1, 2 or 3 matches. I will do the same.\n\n"
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"Whoever takes the last match loses.\n");
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matches = 23;
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// loop until no more matches
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while (matches > 0) {
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// move human, check if they lost
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human_moves();
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if (matches == 0) {
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printf("You lose, turkey!\nBetter luck next time.\n");
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break;
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}
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// move computer, check if they lost
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computer_moves();
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if (matches == 0) {
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printf("I lost! You must be good!\n");
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break;
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}
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}
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}
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void main(void) {
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clrscr();
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printf("*** 23 MATCHES ***\n\n");
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play_game();
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}
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