mine: Add zig-zag mode

mine.lua

@@ -36,6 +36,16 @@ local dirMap = {
   ["1,0"] = 0.25,
   ["-1,0"] = -0.25,
 }
+local invDirMap = {
+  [0] = vector.new(0, 0, -1),
+  [0.5] = vector.new(0, 0, 1),
+  [0.25] = vector.new(1, 0, 0),
+  [-0.25] = vector.new(-1, 0, 0),
+
+  [-0.5] = vector.new(0, 0, 1),
+  [-0.75] = vector.new(1, 0, 0),
+  [0.75] = vector.new(-1, 0, 0),
+}
 function direction(v)
   local d = dirMap[v.x..","..v.z]
   assert(d)
@@ -295,6 +305,11 @@ settings.define("mine.name", {
   default = "DiggyBoi",
   type = "string",
 })
+settings.define("mine.stripWidth", {
+  description = "Strip width",
+  default = 16,
+  type = "number",
+})
 
 function selectItem(item, nbt)
   for i = 1, 16 do
@@ -311,6 +326,7 @@ Miner = {}
 function Miner.new()
   local self = setmetatable({}, { __index = Miner })
   self.name = settings.get("mine.name")
+  self.stripWidth = settings.get("mine.stripWidth")
   self.equipped = {
     ["left"] = {
       ["last"] = "NONE",
@@ -522,6 +538,17 @@ function Miner:faceDir(newDir)
   end
 end
 
+function Miner:turnDir(delta)
+  local newDirNum = direction(self.dir) + delta
+  if newDirNum >= 1 then
+    newDirNum = newDirNum - 1
+  elseif newDirNum <= -1 then
+    newDirNum = newDirNum + 1
+  end
+
+  self:faceDir(invDirMap[newDirNum])
+end
+
 function Miner:navigateThrough(path, limit)
   for _, p in ipairs(path) do
     -- print("move from to", self.pos, p)
@@ -577,6 +604,8 @@ function Miner:checkRecall()
       self:sendMessage("recallProgress", { to = msg.to })
       self:xchgItems()
     end
+
+    self:xchgItems(true)
     return true
   end
 
@@ -679,8 +708,24 @@ function Miner:mineOres(radius)
   return true
 end
 
-local miner = Miner.new()
+function Miner:loop()
+  self:turnDir(0.25)
+
   local shouldRun = true
   while shouldRun do
-  shouldRun = miner:mineOres(16)
+    local i = self.i - 1
+    if i > 1 and (i % self.stripWidth == 0 or i % self.stripWidth == 1) then
+      local delta = -0.25 -- left
+      if i % (self.stripWidth * 2) == 0 or i % (self.stripWidth * 2) == 1 then
+        delta = 0.25 -- right
       end
+
+      self:turnDir(delta)
+    end
+
+    shouldRun = self:mineOres(16)
+  end
+end
+
+local miner = Miner.new()
+miner:loop()