compare.c

石头剪子布的游戏

#include "p_r_s.h"

outcome compare(p_r_s player_choice, p_r_s machine_choice)
{
	outcome result;

	if (player_choice == machine_choice)
		return tie;
	switch (player_choice) {
	case paper:
		result = (machine_choice == rock) ? win : lose;
		break;
	case rock:
		result = (machine_choice == scissors) ? win : lose;
		break;
	case scissors:
		result = (machine_choice == paper) ? win : lose;
		break;
	default:
		printf("PROGRAMMER ERROR: Unexpected choice!\n\n");
		exit(1);
	}
	return result;
}