Coursera mini project.ipynb

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      "\n",
      "Player chooses rock\n",
      "Computer chooses lizard\n",
      "Player wins!\n",
      "\n",
      "Player chooses Spock\n",
      "Computer chooses lizard\n",
      "Computer wins!\n",
      "\n",
      "Player chooses paper\n",
      "Computer chooses rock\n",
      "Player wins!\n",
      "\n",
      "Player chooses lizard\n",
      "Computer chooses Spock\n",
      "Player wins!\n",
      "\n",
      "Player chooses scissors\n",
      "Computer chooses scissors\n",
      "Player and computer tie!\n"
     ]
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   "source": [
    "# Rock-paper-scissors-lizard-Spock template\n",
    "import random\n",
    "\n",
    "# The key idea of this program is to equate the strings\n",
    "# \"rock\", \"paper\", \"scissors\", \"lizard\", \"Spock\" to numbers\n",
    "# as follows:\n",
    "#\n",
    "# 0 - rock\n",
    "# 1 - Spock\n",
    "# 2 - paper\n",
    "# 3 - lizard\n",
    "# 4 - scissors\n",
    "\n",
    "# helper functions\n",
    "\n",
    "def name_to_number(name):\n",
    "    # delete the following pass statement and fill in your code below\n",
    "    pass\n",
    "\n",
    "    # convert name to number using if/elif/else\n",
    "    # don't forget to return the result!\n",
    "    if name == \"rock\":\n",
    "        return 0\n",
    "    elif name == \"Spock\":\n",
    "        return 1\n",
    "    elif name == \"paper\":\n",
    "        return 2\n",
    "    elif name == \"lizard\":\n",
    "        return 3\n",
    "    elif name == \"scissors\":\n",
    "        return 4\n",
    "    else:\n",
    "        print (\"name_to_number() find unkonwn name: \" + name)\n",
    "        \n",
    "\n",
    "def number_to_name(number):\n",
    "    # delete the following pass statement and fill in your code below\n",
    "    pass\n",
    "    \n",
    "    # convert number to a name using if/elif/else\n",
    "    # don't forget to return the result!\n",
    "    if number == 0:\n",
    "        return \"rock\"\n",
    "    elif number == 1:\n",
    "        return \"Spock\"\n",
    "    elif number == 2:\n",
    "        return \"paper\"\n",
    "    elif number == 3:\n",
    "        return \"lizard\"\n",
    "    elif number == 4:\n",
    "        return \"scissors\"\n",
    "    else:\n",
    "        print (\"number_to_name() find unkown number:\",number)\n",
    "        \n",
    "\n",
    "def rpsls(player_choice): \n",
    "    \"\"\" \n",
    "    player_choice: the name of the player choice\n",
    "    \"\"\"\n",
    "    # delete the following pass statement and fill in your code below\n",
    "    pass\n",
    "    \n",
    "    # print a blank line to separate consecutive games\n",
    "    print (\"\")\n",
    "    \n",
    "    # print out the message for the player's choice\n",
    "    print (\"Player chooses \"+player_choice)\n",
    "    \n",
    "    # convert the player's choice to player_number using the function name_to_number()\n",
    "    player_number = name_to_number(player_choice)\n",
    "    \n",
    "    # compute random guess for comp_number using random.randrange()\n",
    "    comp_number = random.randrange(0,5)\n",
    "    \n",
    "    # convert comp_number to comp_choice using the function number_to_name()\n",
    "    comp_choice = number_to_name(comp_number)\n",
    "    \n",
    "    # print out the message for computer's choice\n",
    "    print (\"Computer chooses \"+comp_choice)\n",
    "    \n",
    "    # compute difference of comp_number and player_number modulo five\n",
    "    diff = (comp_number - player_number) % 5\n",
    "    \n",
    "    # use if/elif/else to determine winner, print winner message\n",
    "    if (diff == 1) or (diff == 2):\n",
    "        print (\"Computer wins!\")\n",
    "    elif (diff == 3) or (diff == 4):\n",
    "        print (\"Player wins!\")\n",
    "    else:\n",
    "        print (\"Player and computer tie!\")\n",
    "                         \n",
    "# test your code - THESE CALLS MUST BE PRESENT IN YOUR SUBMITTED CODE\n",
    "rpsls(\"rock\")\n",
    "rpsls(\"Spock\")\n",
    "rpsls(\"paper\")\n",
    "rpsls(\"lizard\")\n",
    "rpsls(\"scissors\")"
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