BlockMath.java

net.minecraft.core.BlockMath

信息

• 全限定名：net.minecraft.core.BlockMath
• 类型：public class
• 包：net.minecraft.core
• 源码路径：src/main/java/net/minecraft/core/BlockMath.java
• 起始行号：L12
• 职责：

  TODO

字段/常量

• VANILLA_UV_TRANSFORM_LOCAL_TO_GLOBAL

  • 类型: Map<Direction,Transformation>
  • 修饰符: private static final
  • 源码定位: L13
  • 说明:

    TODO

• VANILLA_UV_TRANSFORM_GLOBAL_TO_LOCAL

  • 类型: Map<Direction,Transformation>
  • 修饰符: private static final
  • 源码定位: L29
  • 说明:

    TODO

内部类/嵌套类型

• 无

构造器

• 无

方法

下面的方法块按源码顺序生成。

public static Transformation blockCenterToCorner(Transformation transform) @ L33

• 方法名：blockCenterToCorner
• 源码定位：L33
• 返回类型：Transformation
• 修饰符：public static

参数:

• transform: Transformation

说明:

TODO

public static Transformation blockCornerToCenter(Transformation transform) @ L40

• 方法名：blockCornerToCenter
• 源码定位：L40
• 返回类型：Transformation
• 修饰符：public static

参数:

• transform: Transformation

说明:

TODO

public static Transformation getFaceTransformation(Transformation transformation, Direction originalSide) @ L47

• 方法名：getFaceTransformation
• 源码定位：L47
• 返回类型：Transformation
• 修饰符：public static

参数:

• transformation: Transformation
• originalSide: Direction

说明:

TODO

代码

public class BlockMath {
    private static final Map<Direction, Transformation> VANILLA_UV_TRANSFORM_LOCAL_TO_GLOBAL = Maps.newEnumMap(
        Map.of(
            Direction.SOUTH,
            Transformation.IDENTITY,
            Direction.EAST,
            new Transformation(null, new Quaternionf().rotateY((float) (Math.PI / 2)), null, null),
            Direction.WEST,
            new Transformation(null, new Quaternionf().rotateY((float) (-Math.PI / 2)), null, null),
            Direction.NORTH,
            new Transformation(null, new Quaternionf().rotateY((float) Math.PI), null, null),
            Direction.UP,
            new Transformation(null, new Quaternionf().rotateX((float) (-Math.PI / 2)), null, null),
            Direction.DOWN,
            new Transformation(null, new Quaternionf().rotateX((float) (Math.PI / 2)), null, null)
        )
    );
    private static final Map<Direction, Transformation> VANILLA_UV_TRANSFORM_GLOBAL_TO_LOCAL = Maps.newEnumMap(
        Util.mapValues(VANILLA_UV_TRANSFORM_LOCAL_TO_GLOBAL, Transformation::inverse)
    );
 
    public static Transformation blockCenterToCorner(Transformation transform) {
        Matrix4f ret = new Matrix4f().translation(0.5F, 0.5F, 0.5F);
        ret.mul(transform.getMatrix());
        ret.translate(-0.5F, -0.5F, -0.5F);
        return new Transformation(ret);
    }
 
    public static Transformation blockCornerToCenter(Transformation transform) {
        Matrix4f ret = new Matrix4f().translation(-0.5F, -0.5F, -0.5F);
        ret.mul(transform.getMatrix());
        ret.translate(0.5F, 0.5F, 0.5F);
        return new Transformation(ret);
    }
 
    public static Transformation getFaceTransformation(Transformation transformation, Direction originalSide) {
        if (MatrixUtil.isIdentity(transformation.getMatrix())) {
            return transformation;
        } else {
            Transformation faceAction = VANILLA_UV_TRANSFORM_LOCAL_TO_GLOBAL.get(originalSide);
            faceAction = transformation.compose(faceAction);
            Vector3f transformedNormal = faceAction.getMatrix().transformDirection(new Vector3f(0.0F, 0.0F, 1.0F));
            Direction newSide = Direction.getApproximateNearest(transformedNormal.x, transformedNormal.y, transformedNormal.z);
            return VANILLA_UV_TRANSFORM_GLOBAL_TO_LOCAL.get(newSide).compose(faceAction);
        }
    }
}

引用的其他类

• MatrixUtil

  • 引用位置: 方法调用
  • 关联成员: MatrixUtil.isIdentity()

• Transformation

  • 引用位置: 参数/字段/构造调用/返回值
  • 关联成员: Transformation()

• Direction

  • 引用位置: 参数/字段/方法调用
  • 关联成员: Direction.getApproximateNearest()

• Util

  • 引用位置: 方法调用
  • 关联成员: Util.mapValues()