Answered: In order for a player to navigate your…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

In order for a player to navigate your game, you will need to develop a function or functions using Python script. Your function or functions should do the following:

Show the player the different commands they can enter (such as “go North”, “go West”, and “get [item Name]”).
Show the player’s status by identifying the room they are currently in, showing a list of their inventory of items, and displaying the item in their current room.

You could make these separate functions or part of a single function, depending on how you prefer to organize your code.

#Sample function showing the goal of the game and move commands def show_instructions(): #print a main menu and the commands print("Dragon Text Adventure Game") print("Collect 6 items to win the game, or be eaten by the dragon.") print("Move commands: go South, go North, go East, go West") print("Add to Inventory: get 'item name'") #In this solution, the player’s status would be shown in a separate function. #You may organize your functions differently.

Next, begin developing a main function in your code. The main function will contain the overall gameplay functionality. Review the Project Two Sample Text Game Flowchart, located in the Supporting Materials section, to help you visualize how main() will work.
For this step, simply add in a line of code to define your main function, and a line at the end of your code that will run main(). You will develop each of the pieces for main() in Steps #4–7.

In main(), create a dictionary linking rooms to one another and linking items to their corresponding rooms. The game needs to store all of the possible moves per room and the item in each room in order to properly validate player commands (input). This will allow the player only to move between rooms that are linked or retrieve the correct item from a room. Use your storyboard and map from Project One to help you create your dictionary.

The bulk of the main function should include a loop for the gameplay. In your gameplay loop, develop calls to the function(s) that show the player’s status and possible commands. You developed these in Step #2. When called, the function(s) should display the player’s current room and prompt the player for input (their next command). The player should enter a command to either move between rooms or to get an item, if one exists, from a room.

Here is a sample status from the dragon text game:
You are in the Dungeon Inventory: [] You see a Sword ---------------------- Enter your move: As the player collects items and moves between rooms, the status function should update accordingly. Here is another example after a player has collected items from two different rooms: You are in the Gallery Inventory: [‘Sword’, ‘Shield’] -------------- Enter your move:

Within the gameplay loop, you should include decision branching to handle different commands and control the program flow. This should tell the game what to do for each of the possible commands (inputs) from the player. Use your pseudocode or flowcharts from Project One to help you write this code.
- What should happen if the player enters a command to move between rooms?
- What should happen if the player enters a valid command to get an item from the room?
Be sure to also include input validation by developing code that tells the program what to do if the player enters an invalid command.

Note: If you completed the Module Six milestone, you have already developed a portion of this code by handling “move” commands. Review any feedback from your instructor, copy your code into your “TextBasedGame.py” file, make any necessary adjustments, and finish developing the code.

The gameplay loop should continue looping, allowing the player to move to different rooms and acquire items until the player has either won or lost the game. Remember that the player wins the game by retrieving all of the items before encountering the room with the villain. The player loses the game by moving to the room with the villain before collecting all of the items. Be sure to include output to the player for both possible scenarios: winning and losing the game.

As you develop, you should be sure to debug your code to minimize errors and enhance functionality. After you have developed all of your code, be sure to run the code and use the map you designed to navigate through the rooms, testing to make sure that the game is working correctly. Be sure to test different scenarios such as the following:

- What happens if the player enters a valid direction? Does the game move them to the correct room?
- When the player gets an item from a room, is the item added to their inventory?
- What happens if the player enters an invalid direction or item command? Does the game provide the correct output?
- What happens if the player wins the game? What happens if the player loses the game?

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