BlockDude

java.lang.Object
- burlap.domain.singleagent.blockdude.BlockDude

All Implemented Interfaces:

DomainGenerator
```
public class BlockDude
extends java.lang.Object
implements DomainGenerator
```
An implementation of the Block Dude Texas Instruments calculator puzzle game. The goal is for the player to reach an exit. The player has three movement options: west, east, and up if the platform in front of them is only one unit higher. However, because of the landscape, the player will never be able to reach the exit just by moving. Instead, the player must manipulate a set of blocks scattered across the world using a pick up action (which raises the block the player is facing above their head to be carried), and a put down action that places a held block directly in front of the agent.
Block Dude has a very large state action space that makes planning problems in it difficult. States are encoded by the player's position, facing direction, whether they are holding a block, the place of every block in the world and an int array specifying the map of the "bricks" that define the landscape.
States representing the first three levels of Block Dude can be generated from the BlockDudeLevelConstructor and states can be visualized with the BlockDudeVisualizer. You can run this class' main method to launch an interactive visualizer for the first level with keys: w, a, d, s, x for the actions up, west, east, pickup, putdown, respectively.

Author:

James MacGlashan.

Nested Class Summary

Nested Classes
Modifier and Type	Class and Description
`class`	`BlockDude.AtExitPF` A `PropositionalFunction` that takes as arguments an agent object and an exit object and evaluates whether the agent is at the exit.
`class`	`BlockDude.HoldingBlockPF` A `PropositionalFunction` that takes as arguments an agent object and a block objects and evaluates whether the agent is holding the block.

Field Summary

Fields
Modifier and Type	Field and Description
`static java.lang.String`	`ACTION_EAST` Name for the east action
`static java.lang.String`	`ACTION_PICKUP` Name for the pickup action
`static java.lang.String`	`ACTION_PUT_DOWN` Name for the put down action
`static java.lang.String`	`ACTION_UP` Name for the up action
`static java.lang.String`	`ACTION_WEST` Name for the west action
`static java.lang.String`	`CLASS_AGENT` Name for the agent OO-MDP class
`static java.lang.String`	`CLASS_BLOCK` Name for the block OO-MDP class
`static java.lang.String`	`CLASS_EXIT` Name for the exit OO-MDP class
`static java.lang.String`	`CLASS_MAP` Name for the bricks OO-MDP class
`protected int`	`maxx` Domain parameter specifying the maximum x dimension value of the world
`protected int`	`maxy` Domain parameter specifying the maximum y dimension value of the world
`static java.lang.String`	`PF_AT_EXIT` Name for the propositional function that tests whether the agent is at an exit
`static java.lang.String`	`PF_HOLDING_BLOCK` Name for the propositional function that tests whether the agent is holding a block.
`protected RewardFunction`	`rf`
`protected TerminalFunction`	`tf`
`static java.lang.String`	`VAR_DIR` Direction attribute name
`static java.lang.String`	`VAR_HOLD` Name for the boolean attribute that indicates whether the agent is holding a block
`static java.lang.String`	`VAR_MAP` Name for the attribute that holds the brick map
`static java.lang.String`	`VAR_X` X position attribute name
`static java.lang.String`	`VAR_Y` Y position attribute name

Constructor Summary

Constructors
Constructor and Description
`BlockDude()` Initializes a world with a maximum 25x25 dimensionality and actions that use semi-deep state copies.
`BlockDude(int maxx, int maxy)` Initializes a world with the maximum space dimensionality provided and actions that use semi-deep state copies.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`OOSADomain`	`generateDomain()` Returns a newly instanced Domain object
`java.util.List<PropositionalFunction>`	`generatePfs()`
`int`	`getMaxx()`
`int`	`getMaxy()`
`RewardFunction`	`getRf()`
`TerminalFunction`	`getTf()`
`static void`	`main(java.lang.String[] args)` Runs an interactive visual explorer for level one of Block Dude.
`void`	`setMaxx(int maxx)`
`void`	`setMaxy(int maxy)`
`void`	`setRf(RewardFunction rf)`
`void`	`setTf(TerminalFunction tf)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - VAR_X
```
public static final java.lang.String VAR_X
```
    X position attribute name
    
    See Also:
    
    Constant Field Values
  - VAR_Y
```
public static final java.lang.String VAR_Y
```
    Y position attribute name
    
    See Also:
    
    Constant Field Values
  - VAR_DIR
```
public static final java.lang.String VAR_DIR
```
    Direction attribute name
    
    See Also:
    
    Constant Field Values
  - VAR_HOLD
```
public static final java.lang.String VAR_HOLD
```
    Name for the boolean attribute that indicates whether the agent is holding a block
    
    See Also:
    
    Constant Field Values
  - VAR_MAP
```
public static final java.lang.String VAR_MAP
```
    Name for the attribute that holds the brick map
    
    See Also:
    
    Constant Field Values
  - CLASS_AGENT
```
public static final java.lang.String CLASS_AGENT
```
    Name for the agent OO-MDP class
    
    See Also:
    
    Constant Field Values
  - CLASS_BLOCK
```
public static final java.lang.String CLASS_BLOCK
```
    Name for the block OO-MDP class
    
    See Also:
    
    Constant Field Values
  - CLASS_MAP
```
public static final java.lang.String CLASS_MAP
```
    Name for the bricks OO-MDP class
    
    See Also:
    
    Constant Field Values
  - CLASS_EXIT
```
public static final java.lang.String CLASS_EXIT
```
    Name for the exit OO-MDP class
    
    See Also:
    
    Constant Field Values
  - ACTION_UP
```
public static final java.lang.String ACTION_UP
```
    Name for the up action
    
    See Also:
    
    Constant Field Values
  - ACTION_EAST
```
public static final java.lang.String ACTION_EAST
```
    Name for the east action
    
    See Also:
    
    Constant Field Values
  - ACTION_WEST
```
public static final java.lang.String ACTION_WEST
```
    Name for the west action
    
    See Also:
    
    Constant Field Values
  - ACTION_PICKUP
```
public static final java.lang.String ACTION_PICKUP
```
    Name for the pickup action
    
    See Also:
    
    Constant Field Values
  - ACTION_PUT_DOWN
```
public static final java.lang.String ACTION_PUT_DOWN
```
    Name for the put down action
    
    See Also:
    
    Constant Field Values
  - PF_HOLDING_BLOCK
```
public static final java.lang.String PF_HOLDING_BLOCK
```
    Name for the propositional function that tests whether the agent is holding a block.
    
    See Also:
    
    Constant Field Values
  - PF_AT_EXIT
```
public static final java.lang.String PF_AT_EXIT
```
    Name for the propositional function that tests whether the agent is at an exit
    
    See Also:
    
    Constant Field Values
  - maxx
```
protected int maxx
```
    Domain parameter specifying the maximum x dimension value of the world
  - maxy
```
protected int maxy
```
    Domain parameter specifying the maximum y dimension value of the world
  - rf
```
protected RewardFunction rf
```
  - tf
```
protected TerminalFunction tf
```
- Constructor Detail
  - BlockDude
```
public BlockDude()
```
    Initializes a world with a maximum 25x25 dimensionality and actions that use semi-deep state copies.
  - BlockDude
```
public BlockDude(int maxx,
                 int maxy)
```
    Initializes a world with the maximum space dimensionality provided and actions that use semi-deep state copies.
    
    Parameters:
    
    maxx - max x size of the world
    
    maxy - max y size of the world
- Method Detail
  - getRf
```
public RewardFunction getRf()
```
  - setRf
```
public void setRf(RewardFunction rf)
```
  - getTf
```
public TerminalFunction getTf()
```
  - setTf
```
public void setTf(TerminalFunction tf)
```
  - generatePfs
```
public java.util.List<PropositionalFunction> generatePfs()
```
  - generateDomain
```
public OOSADomain generateDomain()
```
    Description copied from interface: DomainGenerator
    
    Returns a newly instanced Domain object
    
    Specified by:
    
    generateDomain in interface DomainGenerator
    
    Returns:
    
    the newly instantiated Domain object.
  - getMaxx
```
public int getMaxx()
```
  - setMaxx
```
public void setMaxx(int maxx)
```
  - getMaxy
```
public int getMaxy()
```
  - setMaxy
```
public void setMaxy(int maxy)
```
  - main
```
public static void main(java.lang.String[] args)
```
    Runs an interactive visual explorer for level one of Block Dude. The keys w,a,d,s,x correspond to actions up, west, east, pick up, put down.
    
    Parameters:
    
    args - can be empty.

Class BlockDude

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

VAR_X

VAR_Y

VAR_DIR

VAR_HOLD

VAR_MAP

CLASS_AGENT

CLASS_BLOCK

CLASS_MAP

CLASS_EXIT

ACTION_UP

ACTION_EAST

ACTION_WEST

ACTION_PICKUP

ACTION_PUT_DOWN

PF_HOLDING_BLOCK

PF_AT_EXIT

maxx

maxy

rf

tf

Constructor Detail

BlockDude

BlockDude

Method Detail

getRf

setRf

getTf

setTf

generatePfs

generateDomain

getMaxx

setMaxx

getMaxy

setMaxy

main