package org.bukkit.material;

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

/**
 * Represents stairs.
 * 
 * @author sunkid
 */
public class Stairs extends MaterialData implements Directional {

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

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

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

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

    /**
     * @return the direction the stairs ascend towards
     */
    public BlockFace getAscendingDirection() {
        byte data = getData();
        switch (data) {
        case 0x0:
        default:
            return BlockFace.SOUTH;
        case 0x1:
            return BlockFace.NORTH;
        case 0x2:
            return BlockFace.WEST;
        case 0x3:
            return BlockFace.EAST;
        }
    }

    /**
     * @return the direction the stairs descend towards
     */
    public BlockFace getDescendingDirection() {
        return getAscendingDirection().getOppositeFace();
    }

    /**
     * Set the direction the stair part of the block is facing
     */
    public void setFacingDirection(BlockFace face) {
        byte data;
        switch (face) {
        case NORTH:
        default:
            data = 0x0;
            break;
        case SOUTH:
            data = 0x1;
            break;
        case EAST:
            data = 0x2;
            break;
        case WEST:
            data = 0x3;
            break;
        }
        
        setData(data);
    }

    /**
     * @return the direction the stair part of the block is facing
     */
    public BlockFace getFacing() {
        return getDescendingDirection();
    }
    
    @Override
    public String toString() {
        return super.toString() + " facing " + getFacing();
    }

}