WIP MinecraftGetter

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-- /lib/MinecraftGetter
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--- This package keeps all functions that are getting data from minecraft:
-- get player location, getting scoreboard data, ...
-- the rest of twenty-k code should not use Minecraft commands directly but only through this package

local mc = {}
mcget = mc

--- Returns a table with the coordinates of the computer running this script
function mc.computerPosition()
    local ox,oy,oz = commands.getBlockPosition()
    local T = {
        x = ox,
        y = oy,
        z = oz
    }
    return T
end

--- Checks if a specified block is at the specified locaiton
-- block can be passed as table with .block and .variant
-- or as a string for testing for block kind of all its variants
function mc.testForBlock(x,y,z,block)
    local isblock = false
    local message
    if type(block) == 'table' then
        isblock, message = commands.testforblock(x,y,z,block.block,block.variant)
    elseif type(block) == 'string' then
        isblock, message = commands.testforblock(x,y,z,block)
    end
    --debug.log("commands.testforblock returned: isblock >"..isblock.."<, message >"..message.."<")
    return isblock
end