Virtual Life App

Languages: Javascript ES5
Tools: VS Code, Live Server extension, Git (if available)
Libraries: animate-world.js

Feature Specification

Create a simple virtual life simulation with walls, plants and animals
The world will be a simple 6 by 6 grid of cells with walls on all sides
- The cells can be occupied by a wall, plant, animal or be empty
Symbols will be used for each world occupant
- wall - #
- plant - p
- animal - a
- empty (space character)
Walls will not move or be destroyed
Plants will not move and will have a chance to reproduce or die
Animals will have a chance to move, reproduce or die
- If an animal moves to a cell with a plant, that plant will die
- An animal cannot move to a cell occupied by a wall or another animal

Code Design

Create a world object in an world.js script file
- Add the following methods
  - toString() - Will output a string that displays the current state of the world
```
  ######
  # p# #
  # # a#
  # pa #
  # #p #
  ######
```
    - The string must have a new line "\n" at the end of each row.
    - A string example of the above world
```
  "######\n# p# #\n# # a#\n# pa #\n# #p #######"
```
  - turn() - Will advance the world by one turn
During a turn
- Each cell on the grid will be given a chance to act
  - It is not necessary to make a copy of the grid
  - It is not necessary to assure that an animal only acts once
```
  i.e. An animal may act more than once if it moves to a cell that has not yet acted
```
- Each plant and animal should get a random chance to live or die
- Each plant and animal, if it lives, should get a random chance to reproduce
  - If it reproduces it should be to an immediately nearby cell
- Each animal, if it lives, should get a random chance to move
  - If it moves it should be to an immediately nearby cell
Use the animate-world.js library to animate your world object
The animate-world.js library creates a single global function named animateWorld() that takes a world object as a parameter
Create an index.html page to link to the script files and call animateWorld()
- In the body complete the following
  - Create a script link to the animate-world.js library
  - Create a script link to your world.js script file
  - Create a script element and call animateWorld() passing your world object
```
  <body>
      <script src="https://redrockcode.com/educationMaterials/workbenchProjects/phase-i/virtual-life-01-app/animate-world.js"></script>
      <script src="world.js"></script>
      <script>
          animateWorld(world)
      </script>
  </body>
```

Notes

How to define an object
```
  var world = {};
```

How to define a function for an object

  world.turn = function() {
      console.log("Taking a turn");
  }

References

Object basics