```
public final class GameRule<T>
extends Object
```
GameRules dictate certain behavior within Minecraft itself
For more information please visit the Minecraft Wiki

Field Summary

Fields
Modifier and Type	Field	Description
`static GameRule<Boolean>`	`ANNOUNCE_ADVANCEMENTS`	Toggles the announcing of advancements.
`static GameRule<Boolean>`	`COMMAND_BLOCK_OUTPUT`	Whether command blocks should notify admins when they perform commands.
`static GameRule<Boolean>`	`DISABLE_ELYTRA_MOVEMENT_CHECK`	Whether the server should skip checking player speed when the player is wearing elytra.
`static GameRule<Boolean>`	`DISABLE_RAIDS`	Whether pillager raids are enabled or not.
`static GameRule<Boolean>`	`DO_DAYLIGHT_CYCLE`	Whether time progresses from the current moment.
`static GameRule<Boolean>`	`DO_ENTITY_DROPS`	Whether entities that are not mobs should have drops.
`static GameRule<Boolean>`	`DO_FIRE_TICK`	Whether fire should spread and naturally extinguish.
`static GameRule<Boolean>`	`DO_LIMITED_CRAFTING`	Whether players should only be able to craft recipes they've unlocked first.
`static GameRule<Boolean>`	`DO_MOB_LOOT`	Whether mobs should drop items.
`static GameRule<Boolean>`	`DO_MOB_SPAWNING`	Whether mobs should naturally spawn.
`static GameRule<Boolean>`	`DO_TILE_DROPS`	Whether blocks should have drops.
`static GameRule<Boolean>`	`DO_WEATHER_CYCLE`	Whether the weather will change from the current moment.
`static GameRule<Boolean>`	`KEEP_INVENTORY`	Whether the player should keep items in their inventory after death.
`static GameRule<Boolean>`	`LOG_ADMIN_COMMANDS`	Whether to log admin commands to server log.
`static GameRule<Integer>`	`MAX_COMMAND_CHAIN_LENGTH`	Determines the number at which the chain of command blocks act as a "chain."
`static GameRule<Integer>`	`MAX_ENTITY_CRAMMING`	The maximum number of other pushable entities a mob or player can push, before taking suffocation damage.
`static GameRule<Boolean>`	`MOB_GRIEFING`	Whether mobs can pick up items or change blocks.
`static GameRule<Boolean>`	`NATURAL_REGENERATION`	Whether players can regenerate health naturally through their hunger bar.
`static GameRule<Integer>`	`RANDOM_TICK_SPEED`	How often a random block tick occurs (such as plant growth, leaf decay, etc.) per chunk section per game tick. 0 will disable random ticks, higher numbers will increase random ticks.
`static GameRule<Boolean>`	`REDUCED_DEBUG_INFO`	Whether the debug screen shows all or reduced information.
`static GameRule<Boolean>`	`SEND_COMMAND_FEEDBACK`	Whether the feedback from commands executed by a player should show up in chat.
`static GameRule<Boolean>`	`SHOW_DEATH_MESSAGES`	Whether a message appears in chat when a player dies.
`static GameRule<Integer>`	`SPAWN_RADIUS`	The number of blocks outward from the world spawn coordinates that a player will spawn in when first joining a server or when dying without a spawnpoint.
`static GameRule<Boolean>`	`SPECTATORS_GENERATE_CHUNKS`	Whether players in spectator mode can generate chunks.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(Object obj)`
`static GameRule<?>`	`getByName(String rule)`	Get a `GameRule` by its name.
`String`	`getName()`	Get the name of this GameRule.
`Class<T>`	`getType()`	Get the type of this rule.
`String`	`toString()`
`static GameRule<?>[]`	`values()`	Get an immutable collection of `GameRule`s.

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

- Field Detail
  - ANNOUNCE_ADVANCEMENTS
```
public static final GameRule<Boolean> ANNOUNCE_ADVANCEMENTS
```
    Toggles the announcing of advancements.
  - COMMAND_BLOCK_OUTPUT
```
public static final GameRule<Boolean> COMMAND_BLOCK_OUTPUT
```
    Whether command blocks should notify admins when they perform commands.
  - DISABLE_ELYTRA_MOVEMENT_CHECK
```
public static final GameRule<Boolean> DISABLE_ELYTRA_MOVEMENT_CHECK
```
    Whether the server should skip checking player speed when the player is wearing elytra.
  - DO_DAYLIGHT_CYCLE
```
public static final GameRule<Boolean> DO_DAYLIGHT_CYCLE
```
    Whether time progresses from the current moment.
  - DO_ENTITY_DROPS
```
public static final GameRule<Boolean> DO_ENTITY_DROPS
```
    Whether entities that are not mobs should have drops.
  - DO_FIRE_TICK
```
public static final GameRule<Boolean> DO_FIRE_TICK
```
    Whether fire should spread and naturally extinguish.
  - DO_LIMITED_CRAFTING
```
public static final GameRule<Boolean> DO_LIMITED_CRAFTING
```
    Whether players should only be able to craft recipes they've unlocked first.
  - DO_MOB_LOOT
```
public static final GameRule<Boolean> DO_MOB_LOOT
```
    Whether mobs should drop items.
  - DO_MOB_SPAWNING
```
public static final GameRule<Boolean> DO_MOB_SPAWNING
```
    Whether mobs should naturally spawn.
  - DO_TILE_DROPS
```
public static final GameRule<Boolean> DO_TILE_DROPS
```
    Whether blocks should have drops.
  - DO_WEATHER_CYCLE
```
public static final GameRule<Boolean> DO_WEATHER_CYCLE
```
    Whether the weather will change from the current moment.
  - KEEP_INVENTORY
```
public static final GameRule<Boolean> KEEP_INVENTORY
```
    Whether the player should keep items in their inventory after death.
  - LOG_ADMIN_COMMANDS
```
public static final GameRule<Boolean> LOG_ADMIN_COMMANDS
```
    Whether to log admin commands to server log.
  - MOB_GRIEFING
```
public static final GameRule<Boolean> MOB_GRIEFING
```
    Whether mobs can pick up items or change blocks.
  - NATURAL_REGENERATION
```
public static final GameRule<Boolean> NATURAL_REGENERATION
```
    Whether players can regenerate health naturally through their hunger bar.
  - REDUCED_DEBUG_INFO
```
public static final GameRule<Boolean> REDUCED_DEBUG_INFO
```
    Whether the debug screen shows all or reduced information.
  - SEND_COMMAND_FEEDBACK
```
public static final GameRule<Boolean> SEND_COMMAND_FEEDBACK
```
    Whether the feedback from commands executed by a player should show up in chat. Also affects the default behavior of whether command blocks store their output text.
  - SHOW_DEATH_MESSAGES
```
public static final GameRule<Boolean> SHOW_DEATH_MESSAGES
```
    Whether a message appears in chat when a player dies.
  - SPECTATORS_GENERATE_CHUNKS
```
public static final GameRule<Boolean> SPECTATORS_GENERATE_CHUNKS
```
    Whether players in spectator mode can generate chunks.
  - DISABLE_RAIDS
```
public static final GameRule<Boolean> DISABLE_RAIDS
```
    Whether pillager raids are enabled or not.
  - RANDOM_TICK_SPEED
```
public static final GameRule<Integer> RANDOM_TICK_SPEED
```
    How often a random block tick occurs (such as plant growth, leaf decay, etc.) per chunk section per game tick. 0 will disable random ticks, higher numbers will increase random ticks.
  - SPAWN_RADIUS
```
public static final GameRule<Integer> SPAWN_RADIUS
```
    The number of blocks outward from the world spawn coordinates that a player will spawn in when first joining a server or when dying without a spawnpoint.
  - MAX_ENTITY_CRAMMING
```
public static final GameRule<Integer> MAX_ENTITY_CRAMMING
```
    The maximum number of other pushable entities a mob or player can push, before taking suffocation damage.
    Setting to 0 disables this rule.
  - MAX_COMMAND_CHAIN_LENGTH
```
public static final GameRule<Integer> MAX_COMMAND_CHAIN_LENGTH
```
    Determines the number at which the chain of command blocks act as a "chain."
    This is the maximum amount of command blocks that can be activated in a single tick from a single chain.
- Method Detail
  - getName
```
@NotNull
public String getName()
```
    Get the name of this GameRule.
    
    Returns:
    
    the name of this GameRule
  - getType
```
@NotNull
public Class<T> getType()
```
    Get the type of this rule.
    
    Returns:
    
    the rule type; Integer or Boolean
  - equals
```
public boolean equals(Object obj)
```
    Overrides:
    
    equals in class Object
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - getByName
```
@Nullable
public static GameRule<?> getByName(@NotNull
                                    String rule)
```
    Get a GameRule by its name.
    
    Parameters:
    
    rule - the name of the GameRule
    
    Returns:
    
    the GameRule or null if no GameRule matches the given name
  - values
```
@NotNull
public static GameRule<?>[] values()
```
    Get an immutable collection of GameRules.
    
    Returns:
    
    an immutable collection containing all registered GameRules.

Class GameRule<T>

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

ANNOUNCE_ADVANCEMENTS

COMMAND_BLOCK_OUTPUT

DISABLE_ELYTRA_MOVEMENT_CHECK

DO_DAYLIGHT_CYCLE

DO_ENTITY_DROPS

DO_FIRE_TICK

DO_LIMITED_CRAFTING

DO_MOB_LOOT

DO_MOB_SPAWNING

DO_TILE_DROPS

DO_WEATHER_CYCLE

KEEP_INVENTORY

LOG_ADMIN_COMMANDS

MOB_GRIEFING

NATURAL_REGENERATION

REDUCED_DEBUG_INFO

SEND_COMMAND_FEEDBACK

SHOW_DEATH_MESSAGES

SPECTATORS_GENERATE_CHUNKS

DISABLE_RAIDS

RANDOM_TICK_SPEED

SPAWN_RADIUS

MAX_ENTITY_CRAMMING

MAX_COMMAND_CHAIN_LENGTH

Method Detail

getName

getType

equals

toString

getByName

values