From 640d3f144f1e626f9e58f2c917f9c3593d666d5f Mon Sep 17 00:00:00 2001
From: Botond Hende <nettingman@gmail.com>
Date: Thu, 1 May 2025 19:42:40 +0200
Subject: initial commit

---
 inv_utils.lua | 13 +++++++++++++
 nav.lua       | 43 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 56 insertions(+)
 create mode 100644 inv_utils.lua
 create mode 100644 nav.lua

diff --git a/inv_utils.lua b/inv_utils.lua
new file mode 100644
index 0000000..830e39e
--- /dev/null
+++ b/inv_utils.lua
@@ -0,0 +1,13 @@
+local function getEmptySlotInStorage(storage)
+	return 5 -- TODO
+end
+
+local function swapSlotsInStorage(storage, slotA, slotB)
+	local emptySlot = getEmptySlotInStorage(storage)
+	storage.pushItems(peripheral.getName(storage), slotA, nil, emptySlot)
+	storage.pushItems(peripheral.getName(storage), slotB, nil, slotA)
+	storage.pushItems(peripheral.getName(storage), emptySlot, nil, slotB)
+end
+
+
+return { swapSlotsInStorage = swapSlotsInStorage }
diff --git a/nav.lua b/nav.lua
new file mode 100644
index 0000000..354897a
--- /dev/null
+++ b/nav.lua
@@ -0,0 +1,43 @@
+-- orientation: east 1 x+, south 2 z+, west 3 x-, north 4 z-
+
+local function turnTo(o1, o2)
+	if o1 == o2 then
+		return nil
+	end
+
+	if math.abs(o2 - o1) == 2 then
+		turtle.turnLeft()
+		turtle.turnLeft()
+	elseif o2 - o1 == 1 or o2 - o1 == -3 then
+		turtle.turnRight()
+	else 
+		turtle.turnLeft()
+	end
+end
+
+local function moveX(x1, x2, o1)
+	if x1 == x2 then
+		return o1
+	end
+
+	local amount = x2 - x1
+	local o2 = amount > 0 and 1 or 3
+	turnTo(o1, o2)
+
+	for ii = 1, math.abs(amount) do
+		turtle.forward()
+	end
+
+	return o2
+end
+
+local function travel(x1, y1, z1, o1, x2, y2, z2, o2, safe_y)
+	local dx = x2 - x1
+	local dz = z2 - z1
+	local move_safe = dx ~= 0 or dz ~= 0
+	if move_safe then
+
+	end
+end
+
+return { turnTo = turnTo, moveX = moveX }
-- 
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