CompassAngleState.java

net.minecraft.client.renderer.item.properties.numeric.CompassAngleState

信息

• 全限定名：net.minecraft.client.renderer.item.properties.numeric.CompassAngleState
• 类型：public class
• 包：net.minecraft.client.renderer.item.properties.numeric
• 源码路径：src/main/java/net/minecraft/client/renderer/item/properties/numeric/CompassAngleState.java
• 起始行号：L23
• 继承：NeedleDirectionHelper
• 职责：

  TODO

字段/常量

• MAP_CODEC

  • 类型: MapCodec<CompassAngleState>
  • 修饰符: public static final
  • 源码定位: L24
  • 说明:

    TODO

• wobbler

  • 类型: NeedleDirectionHelper.Wobbler
  • 修饰符: private final
  • 源码定位: L31
  • 说明:

    TODO

• noTargetWobbler

  • 类型: NeedleDirectionHelper.Wobbler
  • 修饰符: private final
  • 源码定位: L32
  • 说明:

    TODO

• compassTarget

  • 类型: CompassAngleState.CompassTarget
  • 修饰符: private final
  • 源码定位: L33
  • 说明:

    TODO

• random

  • 类型: RandomSource
  • 修饰符: private final
  • 源码定位: L34
  • 说明:

    TODO

内部类/嵌套类型

• net.minecraft.client.renderer.item.properties.numeric.CompassAngleState.CompassTarget
  • 类型: enum
  • 修饰符: public static
  • 源码定位: L103
  • 说明:

    TODO

构造器

public CompassAngleState(boolean wobble, CompassAngleState.CompassTarget compassTarget) @ L36

• 构造器名：CompassAngleState
• 源码定位：L36
• 修饰符：public

参数:

• wobble: boolean
• compassTarget: CompassAngleState.CompassTarget

说明:

TODO

方法

下面的方法块按源码顺序生成。

protected float calculate(ItemStack itemStack, ClientLevel level, int seed, ItemOwner owner) @ L43

• 方法名：calculate
• 源码定位：L43
• 返回类型：float
• 修饰符：protected

参数:

• itemStack: ItemStack
• level: ClientLevel
• seed: int
• owner: ItemOwner

说明:

TODO

private float getRandomlySpinningRotation(int seed, long gameTime) @ L52

• 方法名：getRandomlySpinningRotation
• 源码定位：L52
• 返回类型：float
• 修饰符：private

参数:

• seed: int
• gameTime: long

说明:

TODO

private float getRotationTowardsCompassTarget(ItemOwner owner, long gameTime, BlockPos compassTargetPos) @ L61

• 方法名：getRotationTowardsCompassTarget
• 源码定位：L61
• 返回类型：float
• 修饰符：private

参数:

• owner: ItemOwner
• gameTime: long
• compassTargetPos: BlockPos

说明:

TODO

private static boolean isValidCompassTargetPos(ItemOwner owner, GlobalPos positionToPointTo) @ L78

• 方法名：isValidCompassTargetPos
• 源码定位：L78
• 返回类型：boolean
• 修饰符：private static

参数:

• owner: ItemOwner
• positionToPointTo: GlobalPos

说明:

TODO

private static double getAngleFromEntityToPos(ItemOwner owner, BlockPos position) @ L84

• 方法名：getAngleFromEntityToPos
• 源码定位：L84
• 返回类型：double
• 修饰符：private static

参数:

• owner: ItemOwner
• position: BlockPos

说明:

TODO

private static float getWrappedVisualRotationY(ItemOwner owner) @ L90

• 方法名：getWrappedVisualRotationY
• 源码定位：L90
• 返回类型：float
• 修饰符：private static

参数:

• owner: ItemOwner

说明:

TODO

private static int hash(int input) @ L94

• 方法名：hash
• 源码定位：L94
• 返回类型：int
• 修饰符：private static

参数:

• input: int

说明:

TODO

protected CompassAngleState.CompassTarget target() @ L98

• 方法名：target
• 源码定位：L98
• 返回类型：CompassAngleState.CompassTarget
• 修饰符：protected

参数:

• 无

说明:

TODO

代码

@OnlyIn(Dist.CLIENT)
public class CompassAngleState extends NeedleDirectionHelper {
    public static final MapCodec<CompassAngleState> MAP_CODEC = RecordCodecBuilder.mapCodec(
        i -> i.group(
                Codec.BOOL.optionalFieldOf("wobble", true).forGetter(NeedleDirectionHelper::wobble),
                CompassAngleState.CompassTarget.CODEC.fieldOf("target").forGetter(CompassAngleState::target)
            )
            .apply(i, CompassAngleState::new)
    );
    private final NeedleDirectionHelper.Wobbler wobbler;
    private final NeedleDirectionHelper.Wobbler noTargetWobbler;
    private final CompassAngleState.CompassTarget compassTarget;
    private final RandomSource random = RandomSource.create();
 
    public CompassAngleState(boolean wobble, CompassAngleState.CompassTarget compassTarget) {
        super(wobble);
        this.wobbler = this.newWobbler(0.8F);
        this.noTargetWobbler = this.newWobbler(0.8F);
        this.compassTarget = compassTarget;
    }
 
    @Override
    protected float calculate(ItemStack itemStack, ClientLevel level, int seed, ItemOwner owner) {
        GlobalPos compassTargetPos = this.compassTarget.get(level, itemStack, owner);
        long gameTime = level.getGameTime();
        return !isValidCompassTargetPos(owner, compassTargetPos)
            ? this.getRandomlySpinningRotation(seed, gameTime)
            : this.getRotationTowardsCompassTarget(owner, gameTime, compassTargetPos.pos());
    }
 
    private float getRandomlySpinningRotation(int seed, long gameTime) {
        if (this.noTargetWobbler.shouldUpdate(gameTime)) {
            this.noTargetWobbler.update(gameTime, this.random.nextFloat());
        }
 
        float targetRotation = this.noTargetWobbler.rotation() + hash(seed) / 2.1474836E9F;
        return Mth.positiveModulo(targetRotation, 1.0F);
    }
 
    private float getRotationTowardsCompassTarget(ItemOwner owner, long gameTime, BlockPos compassTargetPos) {
        float angleToTarget = (float)getAngleFromEntityToPos(owner, compassTargetPos);
        float ownerYRotation = getWrappedVisualRotationY(owner);
        float targetRotation;
        if (owner.asLivingEntity() instanceof Player player && player.isLocalPlayer() && player.level().tickRateManager().runsNormally()) {
            if (this.wobbler.shouldUpdate(gameTime)) {
                this.wobbler.update(gameTime, 0.5F - (ownerYRotation - 0.25F));
            }
 
            targetRotation = angleToTarget + this.wobbler.rotation();
        } else {
            targetRotation = 0.5F - (ownerYRotation - 0.25F - angleToTarget);
        }
 
        return Mth.positiveModulo(targetRotation, 1.0F);
    }
 
    private static boolean isValidCompassTargetPos(ItemOwner owner, @Nullable GlobalPos positionToPointTo) {
        return positionToPointTo != null
            && positionToPointTo.dimension() == owner.level().dimension()
            && !(positionToPointTo.pos().distToCenterSqr(owner.position()) < 1.0E-5F);
    }
 
    private static double getAngleFromEntityToPos(ItemOwner owner, BlockPos position) {
        Vec3 target = Vec3.atCenterOf(position);
        Vec3 ownerPosition = owner.position();
        return Math.atan2(target.z() - ownerPosition.z(), target.x() - ownerPosition.x()) / (float) (Math.PI * 2);
    }
 
    private static float getWrappedVisualRotationY(ItemOwner owner) {
        return Mth.positiveModulo(owner.getVisualRotationYInDegrees() / 360.0F, 1.0F);
    }
 
    private static int hash(int input) {
        return input * 1327217883;
    }
 
    protected CompassAngleState.CompassTarget target() {
        return this.compassTarget;
    }
 
    @OnlyIn(Dist.CLIENT)
    public static enum CompassTarget implements StringRepresentable {
        NONE("none") {
            @Override
            public @Nullable GlobalPos get(ClientLevel level, ItemStack itemStack, @Nullable ItemOwner owner) {
                return null;
            }
        },
        LODESTONE("lodestone") {
            @Override
            public @Nullable GlobalPos get(ClientLevel level, ItemStack itemStack, @Nullable ItemOwner owner) {
                LodestoneTracker tracker = itemStack.get(DataComponents.LODESTONE_TRACKER);
                return tracker != null ? tracker.target().orElse(null) : null;
            }
        },
        SPAWN("spawn") {
            @Override
            public GlobalPos get(ClientLevel level, ItemStack itemStack, @Nullable ItemOwner owner) {
                return level.getRespawnData().globalPos();
            }
        },
        RECOVERY("recovery") {
            @Override
            public @Nullable GlobalPos get(ClientLevel level, ItemStack itemStack, @Nullable ItemOwner owner) {
                return (owner == null ? null : owner.asLivingEntity()) instanceof Player player ? player.getLastDeathLocation().orElse(null) : null;
            }
        };
 
        public static final Codec<CompassAngleState.CompassTarget> CODEC = StringRepresentable.fromEnum(CompassAngleState.CompassTarget::values);
        private final String name;
 
        private CompassTarget(String name) {
            this.name = name;
        }
 
        @Override
        public String getSerializedName() {
            return this.name;
        }
 
        abstract @Nullable GlobalPos get(final ClientLevel level, final ItemStack itemStack, final @Nullable ItemOwner entity);
    }
}

引用的其他类

• ClientLevel

  • 引用位置: 参数

• NeedleDirectionHelper

  • 引用位置: 字段/继承

• BlockPos

  • 引用位置: 参数

• GlobalPos

  • 引用位置: 参数

• Mth

  • 引用位置: 方法调用
  • 关联成员: Mth.positiveModulo()

• RandomSource

  • 引用位置: 字段/方法调用
  • 关联成员: RandomSource.create()

• StringRepresentable

  • 引用位置: 方法调用
  • 关联成员: StringRepresentable.fromEnum()

• ItemOwner

  • 引用位置: 参数

• ItemStack

  • 引用位置: 参数

• Vec3

  • 引用位置: 方法调用
  • 关联成员: Vec3.atCenterOf()