attack

turtle.refuel()
m = peripheral.wrap("right")
--m.open(1)

--x,y,z = -511, 95, 167
facing = "z-"

function fxp ()
    if facing=="x+" then return
    elseif facing =="x-" then
        turtle.turnLeft()
        turtle.turnLeft()
    elseif facing=="z-" then turtle.turnRight()
    elseif facing=="z+" then turtle.turnLeft()
    end
    facing="x+"
end
function fxm ()
    if facing=="x+" then
        turtle.turnLeft()
        turtle.turnLeft()
    elseif facing=="x-" then return
    elseif facing=="z-" then turtle.turnLeft()
    elseif facing=="z+" then turtle.turnRight()
    end
    facing="x-"
end
function fzp ()
    if facing=="x+" then turtle.turnRight()
    elseif facing=="x-" then turtle.turnLeft()
    elseif facing=="z+" then return
    elseif facing=="z-" then
        turtle.turnLeft()
        turtle.turnLeft()
    end
    facing="z+"
end
function fzm ()
    if facing=="x+" then turtle.turnLeft()
    elseif facing=="x-" then turtle.turnRight()
    elseif facing=="z+" then
        turtle.turnLeft()
        turtle.turnLeft()
    elseif facing=="z-" then return
    end
    facing="z-"
end

function move (tx,ty,tz)
    x,y,z=0,0,0
    dx=tx
    dy=ty
    dz=tz
    max = math.max(math.abs(dx), math.abs(dy),math.abs(dz))

    if dy>0.5 and math.abs(dy)==max then
        turtle.up()
        y = y+1
        dy=ty-y
    elseif dy<-0.5 and math.abs(dy)==max then
        turtle.down()
        y=y-1
        dy=ty-y
    elseif dx>0.5 and math.abs(dx)==max then
        fxp()
--        while dx>0 do
            turtle.forward()
            x = x+1
            dx = tx-x
--        end
    elseif dx<-0.5 and math.abs(dx)==max then
        fxm()
--        while dx<0 do
            turtle.forward()
            x=x-1
            dx = tx-x
--        end
    elseif dz>0.5 and math.abs(dz)==max then
        fzp()
--        while dz>0 do
            turtle.forward()
            z=z+1
            dz = tz-z
--        end
    elseif dz<-0.5 and math.abs(dz)==max then
        fzm()
--        while dz<0 do
            turtle.forward()
            z=z-1
            dz = tz-z
--        end
    end
end

function contains (t, val)
    for index, value in ipairs(t) do
        if value.id==val then
            return true
        end
    end
    return false
end

function euDist (ax,ay,az,bx,by,bz)
    cx = math.abs(ax)-math.abs(bx)
    cy = math.abs(ay)-math.abs(by)
    cz = math.abs(az)-math.abs(bz)
    return math.sqrt(cx*cx+cy*cy+cz*cz)
end

--turtle.refuel()
--m = peripheral.wrap("left")
--facing="z-"

ignore = {"McSkizz", "lilfinn", "Mentiad", "Item", "Arrow", "XPOrb", "SmallFireball", "ThrownPotion"}
ignLookup={}
for i=1,#ignore do
    ignLookup[ignore[i]]=true
end

current = {id=0}
McSkizz = {}
while true do
    event, key = os.pullEvent()
    if event=="key" and key==keys.x then
        os.exit()
    end
    curMobs = {}
    mobs = m.sense()
    for i=1,#mobs do
        if mobs[i].name=="McSkizz" then McSkizz = mobs[i] end
        if not ignLookup[mobs[i].name] then
            curMobs[#curMobs+1]=mobs[i]
        end
    end
    McDist = euDist(0,0,0,McSkizz.x,McSkizz.y,McSkizz.z)
    if McDist>10 then
        current=McSkizz
    elseif #curMobs>0 then
        closestD = 50
        closest={}
        for i=1,#curMobs do
            mob = curMobs[i]
            if euDist(0,0,0,mob.x,mob.y,mob.z)<closestD then
                closestD=euDist(0,0,0,mob.x,mob.y,mob.z)
                closest=mob
            end
        end
        current = closest
    else
        current = McSkizz
    end
    print(current.name)
    if current.name~="McSkizz" then
        move(current.x,current.y+1,current.z)
        turtle.attackDown()
        turtle.attack()
        turtle.attackUp()
    else
        move(current.x, current.y+1, current.z)
    end
end