StendhalDesign

This small doc tries to make a contract agreement about what is stendhal and what it needs to include. It considers the existing [Roadmap] and tries to give a coherent vision of what we are trying to get.

Consider using the Discussion tab to query about particular things or making suggestions.

Plot

Stendhal's plot is to grow Sheeps by taking them with you to eat on the plains or the forest.
The task is not simple because you will have to look after them because hungry wolves will try to eat your Sheep. So be careful and protect your Sheep.

Sheeps must be bought when small at Farm, and sell later when you grow it at the Village. For each Sheep you sell when it has grow up, you will get an extra income.

You will need to spend money on getting new weapons and armors and healing potions.

As you see Stendhal is a minigame that try to push everything related to RPG:

• task
• actions
• areas

If Arianne get Stendhal working, the problem is just scaling up the result. :)

Design

Idea

The whole game area would looks like:

http://arianne.sourceforge.net/wiki_images/Stendhal_Map.jpg

It is split in 4 different areas to test the multizone feature.
Players need to change zone in order to accomplish their task.

Use cases description

We need to use several use cases to describe our game.

Player's user case

Player is an entity that play the game, it can move, chat, attack, heal.

  Player enter village in entry point
  Player moves to Farm zone

  Player talks with Sheep seller
    Player: Hi
    Seller: Greetings! How may I help you?
    Player: buy Sheep
    Seller: Do you want to buy a Sheep for 50 coins?
    Player: yes
    Seller: Thank you! Bye

  Player moves. Sheep follows Player.
  Player moves to plains
  Player moves around looking for food
  Player protect Sheep of wolves attacks

  When Sheep is big enough Player moves to Village
  Player talks with Sheep buyer
    Player: Hi
    Buyer: Greetings! How may I help you?
    Player: sell Sheep
    Buyer: Do you want to sell this Sheep for 73 coins?
    Player: yes
    Buyer: Thank you! Bye

  Player spend money in new Sheep and equipment
  * Armor
  * Weapon
  * Healing potions

Sheep seller's user case

This seller is a NPC entity that will sell us a sheep to grow it up and make money.

FOREVER do:
  Listen to Player

  If listen "Hi":
    Seller says "Greetings <Player>!"

  If listen "Buy Sheep" from Player:
    Seller says "Do you want to buy a Sheep for 50 coins?"

  If listen "yes" from Player:
    If Player money - 50 > 0:
      set Player money=Player money - 50
      Duplicate Sheep
      Make Sheep follows Player
  Say bye to Player
DONE

Sheep buyer's user case

This buyer is a NPC entity that will buy us our sheep.

FOREVER do:
  Listen to Player

  If listen "Hi":
    Seller says "Greetings <Player>!"

  If listen "Sell Sheep" from Player:
    Estimate Sheep value related to Sheep weight
    Seller says "Do you want to sell buy a Sheep for <estimated price> coins?"
  
  If listen "yes" from Player:
    set Player money=Player money + <estimated price>
    Destroy Sheep
  
  Say bye to Player
DONE

Sheep's user case

Sheep is our key game concept. Sheeps must be grow up to earn money and buy stuff.

  Sheep is in Farm
  Player buys Sheep
  Sheep seller duplicates Sheep
  Sheep follows Player

  If Sheep finds food:
    Sheep moves to food
    Sheep eats food
    Sheep gains weight

  Player sells Sheep
  Sheep dissappear

Wolf's user case

Wolf is the compitive entity on Stendhal. They join to attack sheeps and often also players. They can kill a sheep in not a long time.

  Wolf moves
  If Wolf sees Sheep:
    Wolf attacks Sheep
  
  If Wolf is attacked:
    Wolf attacks Attacker

Entities

The above user cases shows the next entities in our system:

• Sheep
• Sheep seller
• Sheep buyer
• Wolf
• Player
• Food
• Armor
• Weapon
• Healing potion

Let's describe each entity with its attributes and actions related.

Sheep

It has the following set of attributes:

• x
• y
• dx
• dy
• hp
• owner
• weight

Sheep tasks would be:

• follow
• eat

Sheep behaviour is mainly to follow owner and look for food.
If Sheep finds food, it will eat.
Sheep will runaway if it is attacked by wolves.

Wolf

It has the following set of attributes:

• x
• y
• dx
• dy
• hp
• atk

Wolf tasks would be:

• follow
• attack
• patrol
• chat

Wolf behaviour consists in patrolling some assigned areas.
If Wolf finds Sheep, it will attack Sheep.
If Wolf is attacked, Wolf attacks.
If Wolf is injured, Wolf will runaway.

Sheep seller and Sheep buyer

It has the following set of attributes:

• x
• y
• dx
• dy
• atending

seller and buyer tasks would be:

• patrol

NPC behaviour consists in listening to people near them.
If person says "Hi", NPC faces person and generate conversation.

Player

It has the following set of attributes:

• x
• y
• dx
• dy
• hp
• atk
• money

It has three slots:

• armor
• hand
• backpack
• flock

Player tasks would be:

• move
• attack
• chat

Food

It has the following set of attributes:

• x
• y
• quantity

Food will regenerated each X units of time.

Pseudocode

It is a nice thing to write first a pseudo code of how the design ideas should be coded, as it will spot problems that are later harder to solve.