Rails.java

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package org.bukkit.material;

import org.bukkit.Material;
import org.bukkit.block.BlockFace;

public class Rails extends MaterialData {

    public Rails() {
        super(Material.RAILS);
    }

    public Rails(final int type) {
        super(type);
    }

    public Rails(final Material type) {
        super(type);
    }

    public Rails(final int type, final byte data) {
        super(type, data);
    }

    public Rails(final Material type, final byte data) {
        super(type, data);
    }

    public boolean isOnSlope() {
        byte d = getConvertedData();

        return (d == 0x2 || d == 0x3 || d == 0x4 || d == 0x5);
    }

    public boolean isCurve() {
        byte d = getConvertedData();

        return (d == 0x6 || d == 0x7 || d == 0x8 || d == 0x9);
    }

    public BlockFace getDirection() {
        byte d = getConvertedData();

        switch (d) {
        case 0x0:
        default:
            return BlockFace.SOUTH;

        case 0x1:
            return BlockFace.EAST;

        case 0x2:
            return BlockFace.EAST;

        case 0x3:
            return BlockFace.WEST;

        case 0x4:
            return BlockFace.NORTH;

        case 0x5:
            return BlockFace.SOUTH;

        case 0x6:
            return BlockFace.NORTH_WEST;

        case 0x7:
            return BlockFace.NORTH_EAST;

        case 0x8:
            return BlockFace.SOUTH_EAST;

        case 0x9:
            return BlockFace.SOUTH_WEST;
        }
    }

    @Override
    public String toString() {
        return super.toString() + " facing " + getDirection() + (isCurve() ? " on a curve" : (isOnSlope() ? " on a slope" : ""));
    }

    protected byte getConvertedData() {
        return getData();
    }

    public void setDirection(BlockFace face, boolean isOnSlope) {
        switch (face) {
        case EAST:
            setData((byte) (isOnSlope ? 0x2 : 0x1));
            break;

        case WEST:
            setData((byte) (isOnSlope ? 0x3 : 0x1));
            break;

        case NORTH:
            setData((byte) (isOnSlope ? 0x4 : 0x0));
            break;

        case SOUTH:
            setData((byte) (isOnSlope ? 0x5 : 0x0));
            break;

        case NORTH_WEST:
            setData((byte) 0x6);
            break;

        case NORTH_EAST:
            setData((byte) 0x7);
            break;

        case SOUTH_EAST:
            setData((byte) 0x8);
            break;

        case SOUTH_WEST:
            setData((byte) 0x9);
            break;
        }
    }

    @Override
    public Rails clone() {
        return (Rails) super.clone();
    }
}