Java Tradewars

Java Tradewars is a generic dopewars-like engine that can be easily re-themed using xml configuration files.

Screenshots

• swing

• console

Customization

Customizing this game is done in xml configuration files. Here is the general list of things to customize:

• Events: these are things that happen while moving around
  • Finding cash/stuff on the ground
  • Fights
  • Healing events
  • Bigger coat
  • etc.
• NPCs: these are the bad guys you fight
• Products: these are what can be bought/sold at the marketplace
• Locations: where to go?

Customizing Products

To create a custom product you need a few thing

<Product-array>
  <Product>
    <name>Acid</name>
    <highPrice>4500</highPrice>
    <lowPrice>1000</lowPrice>
  </Product>
  <Product>
    <name>Cocaine</name>
    <highPrice>30000</highPrice>
    <lowPrice>15000</lowPrice>
  </Product>
  <Product>
    <name>Hashish</name>
    <highPrice>1500</highPrice>
    <lowPrice>450</lowPrice>
  </Product>
  <Product>
    <name>Heroin</name>
    <highPrice>14000</highPrice>
    <lowPrice>5000</lowPrice>
  </Product>
</Product-array>

and you're off the the races. The movement will randomize the prices between the high and low numbers. Randomly the prices will spike. You can adjust this in the Product.EVENT_CHANCE constant.

Customizing Locations

This is run almost exactly like products. You specify an array of Locations to the game class to use.

<java.util.Arrays_-ArrayList>
  <a class="Location-array">
    <Location>
      <name>Coney Island</name>
    </Location>
    <Location>
      <name>Manhattan</name>
    </Location>
    <Location>
      <name>The Bronz</name>
    </Location>
    <Location>
      <name>SoHo</name>
    </Location>
    <Location>
      <name>The Village</name>
    </Location>
  </a>
</java.util.Arrays_-ArrayList>

Customizing NPCs

If you chose to enable fights, these are the guys that randomly appear. The Game.startFight method will try to match levels with the player if one is given, otherwise it is randomized.

<Npc-array>
  <Npc>
    <name>Street Thug</name>
    <health>20</health>
    <maxHealth>20</maxHealth>
    <strength>20</strength>
    <defense>5</defense>
    <low>2000</low>
    <high>5000</high>
    <level>1</level>
  </Npc>
  <Npc>
    <name>Officer Hardass</name>
    <health>50</health>
    <maxHealth>50</maxHealth>
    <strength>25</strength>
    <defense>0</defense>
    <low>10000</low>
    <high>20000</high>
    <level>1</level>
  </Npc>
  <Npc>
    <name>Rival Dealer</name>
    <health>80</health>
    <maxHealth>80</maxHealth>
    <strength>25</strength>
    <defense>2</defense>
    <low>50000</low>
    <high>75000</high>
    <level>2</level>
  </Npc>
  <Npc>
    <name>Robocop</name>
    <health>300</health>
    <maxHealth>300</maxHealth>
    <strength>40</strength>
    <defense>0</defense>
    <low>160000</low>
    <high>250000</high>
    <level>3</level>
  </Npc>
</Npc-array>

Robocop will only show up when the player is level 3+ and will reward between 160-250k cash.

Customizing Events

Events are a bit trickier since they can encompass so many different things. A generic event will have access to the game, player and return messages. There are 2 basic ways events are used.

1. Prompt the user for an action and request a response (yes/no)
2. Notify the user of something that happened (no response necessary)

To trigger an event the inEvent() method should return true. there is a hit helper to assist with this -- pass in a number and it will match a random number against it. For examples of events, check the tradewars.events package.