'use strict';
/*global require*/
var Drone = require('drone'),
    blocks = require('blocks');

//
// usage: 
// [1] to place a new block with redstone wire on it (block on bottom, redstone on top)
// /js wireblock(blocks.sandstone);
// 
// [2] to drop wire on to an existing block
// /js wire()
//
// [3] to place a (redstone) torch on a new block
// /js torchblock(blocks.sandstone)
//
// [4] to place a repeater on a new block
// /js repeaterblock(blocks.sandstone)
//
// [5] To create a long redstone wire (with necessary repeaters, powererd by a single torch)
// /js wirestraight(blocks.sandstone, distance)
//
// [6] To create a 'road' with redstone torches and wire lining each side
// /js redstoneroad(blocks.stone, blocks.sandstone, 25)

Drone.extend('wireblock',function(blockType) 
{
    this.chkpt('wireblock')
        .box(blockType,1,2,1)  // 2 blocks tall, top block will be wire dropped on lower
        .up();

    this.world.getBlockAt(this.x,this.y,this.z).setTypeId(55); //apply wire

    return this.move('wireblock');
});

Drone.extend('wire',function ()
{
    this.chkpt('wire')
        .up();

    this.world.getBlockAt(this.x,this.y,this.z).setTypeId(55);  // apply wire

    return this.move('wire');
});

Drone.extend('torchblock', function(blockType)
{
    this.box(blockType,1,2,1)  // 2 blocks tall
        .up();

    this.world.getBlockAt(this.x,this.y,this.z).setTypeId(76);  // apply torch

    return this.down();    
});

Drone.extend('repeaterblock',function(blockType) 
{
    this.chkpt('repeaterblock')
        .box(blockType,1,2,1) 
        .up();

    var block = this.world.getBlockAt(this.x,this.y,this.z);
    block.setTypeId(94);        // apply repeater

    // redstone repeater dirs: north=0,east=1,south=2,west=3
    var direction = [1,2,3,0][this.dir];    // convert drone dir to repeater dir.
    block.setData(direction);   

    return this.move('repeaterblock');
});


Drone.extend('wirestraight',function (blockType,distance)
{
    this.chkpt('wirestraight');

    this.torchblock(blockType);
    this.fwd();

    for (var i = 1; i < distance; i++) {
        if(i % 14 == 0)
        {
            this.repeaterblock(blockType);
        }
        else
        {
            this.wireblock(blockType);
        }

        this.fwd();
    };

    return this.move('wirestraight');
});


Drone.extend('redstoneroad', function (roadBlockType, redstoneunderBlockType, distance)
{
    return  this.down()
                .wirestraight(redstoneunderBlockType, distance)
                .right()
                .box(roadBlockType, 4,1,distance)
                .right(4)
                .wirestraight(redstoneunderBlockType, distance)
                .up();
});