Package ai.nettogrof.battlesnake.snakes

Class AbstractMultiThreadSnakeAI

java.lang.Object

ai.nettogrof.battlesnake.snakes.AbstractSnakeAI

ai.nettogrof.battlesnake.snakes.AbstractSearchSnakeAI

ai.nettogrof.battlesnake.snakes.AbstractTreeSearchSnakeAI

ai.nettogrof.battlesnake.snakes.AbstractMultiThreadSnakeAI

Direct Known Subclasses:

ExpertSnake

public abstract class AbstractMultiThreadSnakeAI
extends AbstractTreeSearchSnakeAI

Any snake using a multithread tree-search could extend this abstract class it contains basic constant fields, related to the field name in json call from BattleSnake. Also some method that any snake must implements.

Version:

Summer 2022

Author:

carl.lajeunesse

Field Summary

Fields

Modifier and Type	Field	Description
protected int	cpuLimit	Number of CPU / thread permit
protected boolean	multiThread	Boolean if multithread is use by the snake value define by the config file

Fields inherited from class ai.nettogrof.battlesnake.snakes.AbstractTreeSearchSnakeAI

lastRoot, NODECOUNT, searchType

Fields inherited from class ai.nettogrof.battlesnake.snakes.AbstractSearchSnakeAI

losing, minusbuffer, nodeTotalCount, timeout, timeTotal, winning

Fields inherited from class ai.nettogrof.battlesnake.snakes.AbstractSnakeAI

apiversion, BOARD, BODY, DOWN, fileConfig, FOUR_SNAKE, gameId, HEAD, HEALTH, height, HEIGHT_FIELD, LEFT, log, MOVESTR, NAME, RIGHT, rules, SHOUT, SINGLE_SNAKE, SNAKES, SQUAD, TURN, TWO_SNAKE, UPWARD, width, WIDTH_FIELD, YOU

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractMultiThreadSnakeAI()	Basic and unused constructor
protected	AbstractMultiThreadSnakeAI(String gameId)	Constructor with the gameid,

Method Summary

Modifier and Type	Method	Description
protected void	expand(List<AbstractNode> nodelist, List<AbstractNode> expandedlist, GameRuleset rules)	Expand the base list of node until reaching CPU limit
protected void	multiThreadtreeSearch(AbstractNode root, Long startTime, GameRuleset rules)	Execute the multiThread tree search
void	setCpuLimit(int cpuLimit)	Set the CPU limit count
void	setMultiThread(boolean multiThread)	Set Multithread flag
protected void	setProperties()	Set the properties to the snake object
protected void	startThread(AbstractSearch search)	Start the thread search
protected void	treeSearch(AbstractNode root, Long startTime, GameRuleset rules)	Execute the tree search

Methods inherited from class ai.nettogrof.battlesnake.snakes.AbstractTreeSearchSnakeAI

chooseBestMove, findChildNewRoot, finishHim, genRoot, lastChance, move, setTimeout, singleThreadTreeSearch

Methods inherited from class ai.nettogrof.battlesnake.snakes.AbstractSearchSnakeAI

addNodeTotalCount, addTimeTotal, end, generateResponse, genSearchType

Methods inherited from class ai.nettogrof.battlesnake.snakes.AbstractSnakeAI

getFileConfig, getInfo, ping, setFileConfig, start

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

multiThread

protected boolean multiThread

Boolean if multithread is use by the snake value define by the config file

cpuLimit

protected int cpuLimit

Number of CPU / thread permit

Constructor Detail

AbstractMultiThreadSnakeAI

protected AbstractMultiThreadSnakeAI()

Basic and unused constructor

AbstractMultiThreadSnakeAI

protected AbstractMultiThreadSnakeAI(String gameId)

Constructor with the gameid,

Parameters:

gameId - String of the gameid field receive in the start request.

Method Detail

setMultiThread

public void setMultiThread(boolean multiThread)

Set Multithread flag

Parameters:

multiThread - the multiThread to set

setCpuLimit

public void setCpuLimit(int cpuLimit)

Set the CPU limit count

Parameters:

cpuLimit - the cpuLimit to set

expand

protected void expand(List<AbstractNode> nodelist,
                      List<AbstractNode> expandedlist,
                      GameRuleset rules)
               throws ReflectiveOperationException

Expand the base list of node until reaching CPU limit

Parameters:

nodelist - List of node that gonna to "rooted" in multithread search

expandedlist - List of node to be updated after search

rules - Game ruleset

Throws:

ReflectiveOperationException - In case of invalid search type

treeSearch

protected void treeSearch(AbstractNode root,
                          Long startTime,
                          GameRuleset rules)
                   throws ReflectiveOperationException

Execute the tree search

Overrides:

treeSearch in class AbstractTreeSearchSnakeAI

Parameters:

root - The root node

startTime - The start time in millisecond

rules - Game ruleset

Throws:

ReflectiveOperationException - In case of invalid search type

multiThreadtreeSearch

protected void multiThreadtreeSearch(AbstractNode root,
                                     Long startTime,
                                     GameRuleset rules)
                              throws ReflectiveOperationException

Execute the multiThread tree search

Parameters:

root - The root node

startTime - The start time in millisecond

rules - Game ruleset

Throws:

ReflectiveOperationException - In case of invalid search type

setProperties

protected void setProperties()

Set the properties to the snake object

Overrides:

setProperties in class AbstractSearchSnakeAI

startThread

protected void startThread(AbstractSearch search)

Start the thread search

Parameters:

search - the search to be executed