SegmentedAnglePrecision.java

net.minecraft.util.SegmentedAnglePrecision

信息

• 全限定名：net.minecraft.util.SegmentedAnglePrecision
• 类型：public class
• 包：net.minecraft.util
• 源码路径：src/main/java/net/minecraft/util/SegmentedAnglePrecision.java
• 起始行号：L5
• 职责：

  TODO

字段/常量

• mask

  • 类型: int
  • 修饰符: private final
  • 源码定位: L6
  • 说明:

    TODO

• precision

  • 类型: int
  • 修饰符: private final
  • 源码定位: L7
  • 说明:

    TODO

• degreeToAngle

  • 类型: float
  • 修饰符: private final
  • 源码定位: L8
  • 说明:

    TODO

• angleToDegree

  • 类型: float
  • 修饰符: private final
  • 源码定位: L9
  • 说明:

    TODO

内部类/嵌套类型

• 无

构造器

public SegmentedAnglePrecision(int bitPrecision) @ L11

• 构造器名：SegmentedAnglePrecision
• 源码定位：L11
• 修饰符：public

参数:

• bitPrecision: int

说明:

TODO

方法

下面的方法块按源码顺序生成。

public boolean isSameAxis(int binaryAngleA, int binaryAngleB) @ L25

• 方法名：isSameAxis
• 源码定位：L25
• 返回类型：boolean
• 修饰符：public

参数:

• binaryAngleA: int
• binaryAngleB: int

说明:

TODO

public int fromDirection(Direction direction) @ L30

• 方法名：fromDirection
• 源码定位：L30
• 返回类型：int
• 修饰符：public

参数:

• direction: Direction

说明:

TODO

public int fromDegreesWithTurns(float degrees) @ L39

• 方法名：fromDegreesWithTurns
• 源码定位：L39
• 返回类型：int
• 修饰符：public

参数:

• degrees: float

说明:

TODO

public int fromDegrees(float degrees) @ L43

• 方法名：fromDegrees
• 源码定位：L43
• 返回类型：int
• 修饰符：public

参数:

• degrees: float

说明:

TODO

public float toDegreesWithTurns(int binaryAngle) @ L47

• 方法名：toDegreesWithTurns
• 源码定位：L47
• 返回类型：float
• 修饰符：public

参数:

• binaryAngle: int

说明:

TODO

public float toDegrees(int binaryAngle) @ L51

• 方法名：toDegrees
• 源码定位：L51
• 返回类型：float
• 修饰符：public

参数:

• binaryAngle: int

说明:

TODO

public int normalize(int binaryAngle) @ L56

• 方法名：normalize
• 源码定位：L56
• 返回类型：int
• 修饰符：public

参数:

• binaryAngle: int

说明:

TODO

public int getMask() @ L60

• 方法名：getMask
• 源码定位：L60
• 返回类型：int
• 修饰符：public

参数:

• 无

说明:

TODO

代码

public class SegmentedAnglePrecision {
    private final int mask;
    private final int precision;
    private final float degreeToAngle;
    private final float angleToDegree;
 
    public SegmentedAnglePrecision(int bitPrecision) {
        if (bitPrecision < 2) {
            throw new IllegalArgumentException("Precision cannot be less than 2 bits");
        } else if (bitPrecision > 30) {
            throw new IllegalArgumentException("Precision cannot be greater than 30 bits");
        } else {
            int twoPi = 1 << bitPrecision;
            this.mask = twoPi - 1;
            this.precision = bitPrecision;
            this.degreeToAngle = twoPi / 360.0F;
            this.angleToDegree = 360.0F / twoPi;
        }
    }
 
    public boolean isSameAxis(int binaryAngleA, int binaryAngleB) {
        int semicircleMask = this.getMask() >> 1;
        return (binaryAngleA & semicircleMask) == (binaryAngleB & semicircleMask);
    }
 
    public int fromDirection(Direction direction) {
        if (direction.getAxis().isVertical()) {
            return 0;
        } else {
            int segmentedAngle2bit = direction.get2DDataValue();
            return segmentedAngle2bit << this.precision - 2;
        }
    }
 
    public int fromDegreesWithTurns(float degrees) {
        return Math.round(degrees * this.degreeToAngle);
    }
 
    public int fromDegrees(float degrees) {
        return this.normalize(this.fromDegreesWithTurns(degrees));
    }
 
    public float toDegreesWithTurns(int binaryAngle) {
        return binaryAngle * this.angleToDegree;
    }
 
    public float toDegrees(int binaryAngle) {
        float degrees = this.toDegreesWithTurns(this.normalize(binaryAngle));
        return degrees >= 180.0F ? degrees - 360.0F : degrees;
    }
 
    public int normalize(int binaryAngle) {
        return binaryAngle & this.mask;
    }
 
    public int getMask() {
        return this.mask;
    }
}

引用的其他类

• Direction
  • 引用位置: 参数