require rework round 3

builder/apis/builder.lua

@@ -0,0 +1,101 @@
+local Blocks    = require('builder.blocks')
+local class     = require('class')
+local Message   = require('core.message')
+local Util      = require('util')
+
+local device     = _G.device
+local fs         = _G.fs
+local turtle     = _G.turtle
+
+local Builder = class()
+Util.merge(Builder, {
+  isCommandComputer = not turtle,
+  loc = { },
+  index = 1,
+  mode = 'build',
+})
+
+local BUILDER_DIR = 'usr/builder'
+
+local blockInfo = Blocks()
+
+function Builder:getBlockCounts()
+  local blocks = { }
+
+  for k = self.index, #self.schematic.blocks do
+    local b = self.schematic.blocks[k]
+    local key = tostring(b.id) .. ':' .. b.dmg
+    local block = blocks[key]
+    if not block then
+      block = Util.shallowCopy(b)
+      block.qty = 0
+      block.need = 0
+      blocks[key] = block
+    end
+    block.need = block.need + 1
+  end
+
+  return blocks
+end
+
+function Builder:substituteBlocks(throttle)
+  for _,b in pairs(self.schematic.blocks) do
+
+    -- replace schematic block type with substitution
+    local pb = blockInfo:getPlaceableBlock(b.id, b.dmg)
+
+    Util.merge(b, pb)
+
+    b.odmg = pb.odmg or pb.dmg
+
+    local sub = self.subDB:get({ b.id, b.dmg })
+    if sub then
+      b.id, b.dmg = self.subDB:extract(sub)
+    end
+    throttle()
+  end
+end
+
+function Builder:reloadSchematic(throttle)
+  self.schematic:reload(throttle)
+  self:substituteBlocks(throttle)
+end
+
+function Builder:log(...)
+  Util.print(...)
+end
+
+function Builder:dumpInventory()
+end
+
+function Builder:logBlock(index, b)
+  local bdir = b.direction or ''
+  local logText = string.format('%d %s:%d (x:%d,z:%d:y:%d) %s',
+    index, b.id, b.dmg, b.x, b.z, b.y, bdir)
+  self:log(logText)
+  -- self:log(b.index) -- unique identifier of block
+
+  if device.wireless_modem then
+    Message.broadcast('builder', { x = b.x, y = b.y, z = b.z, heading = b.heading })
+  end
+end
+
+function Builder:saveProgress(index)
+  Util.writeTable(
+    fs.combine(BUILDER_DIR, self.schematic.filename .. '.progress'),
+    { index = index, loc = self.loc }
+  )
+end
+
+function Builder:loadProgress(filename)
+  local progress = Util.readTable(fs.combine(BUILDER_DIR, filename))
+  if progress then
+    self.index = progress.index
+    if self.index > #self.schematic.blocks then
+      self.index = 1
+    end
+    self.loc = progress.loc or { }
+  end
+end
+
+return Builder