02_git_task. Scissors game

scissors/README.md

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+# git homework
+Create a rock-paper-scissors console game
+(rules https://en.wikipedia.org/wiki/Rock_paper_scissors)
+
+The game should be simple, the goal is to create a git project with proper commit order and structure. E.g.:
+```
+> Please choose: rock (r) - paper (p) - scissors (s)
+> r
+> You choose rock, I choose paper
+> I win: paper beats rock
+```
+Please add your sources into folder 'scissors'
+
+Optional task: add printing md5 checksum of computer's choice before human's move.

scissors/scissors_game/Makefile

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+CC=gcc
+SOURCES=main.c scissors.h
+EXECUTABLE=scissors_game
+
+all: $(SOURCES)
+	$(CC) $(SOURCES) -o $(EXECUTABLE)

scissors/scissors_game/main.c

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+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <time.h>
+#include "scissors.h"
+
+int static char_to_text(char c, char *res, int size)
+{
+	int ans = eU;
+	switch(c) {
+	case 'r':
+		strncpy(res, "rock", size);
+		ans=eR;
+		break;
+	case 'p':
+		strncpy(res, "paper", size);
+		ans=eP;
+		break;
+	case 's':
+		strncpy(res, "scissors", size);
+		ans=eS;
+		break;
+	default:
+		strncpy(res, "unknown", size);
+	}
+	return ans;
+}
+
+int main(void)
+{
+	srand(time(NULL));
+	while(1){
+		printf("Please choose: rock (r) - paper (p) - scissors (s)\n");
+		char input;
+		char res [10];
+		memset (res, 0, 10);
+		scanf ("%1s", &input);
+		int user = -1;
+		user = char_to_text(input, res, sizeof(res)-1);
+		static char *ChNames[] = {
+			"rock",
+			"paper",
+			"scissors"
+		};
+		int comp=rand()%3;
+		printf("You choose %s, I choose %s\n", res, ChNames[comp]);
+		if (user==eU)
+		       continue;
+		int check = game_table[user][comp];
+		switch (check) {
+		case eLOST:
+			printf("I win: %s beats %s\n", ChNames[comp], res);
+			break;
+		case eWINN:
+			printf("You win: %s beats %s\n", res, ChNames[comp]);
+			break;
+		case eDRAW:
+			printf("It's draw\n");
+		}
+	}
+}

scissors/scissors_game/scissors.h

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+/*Enum of Game results*/
+typedef enum {
+	eDRAW = -1,
+	eLOST,
+	eWINN
+} decision_t;
+/*Enum of Unknown, Rock, Paper and Scissors choise*/
+typedef enum {
+	eU = -1,
+	eR,
+	eP,
+	eS
+} element_t;
+const int game_table[3][3]={
+       eDRAW, eLOST, eWINN,
+       eWINN, eDRAW, eLOST,
+       eLOST, eWINN, eDRAW
+};
+