scanner

local geoScan = peripheral.find("geoScanner")

function isNeighbor(block1, block2)
 return math.abs(block1.x - block2.x) <= 1 and
      math.abs(block1.y - block2.y) <= 1 and
      math.abs(block1.z - block2.z) <= 1
end

function scanForDiamondOre()
  local blocks = geoScan.scan(10)
  sleep(1)
  if type(blocks) ~= "table" then
    print("Error: geoScanner.scan() did not return a table.".. type(blocks))
  else
    local groups = {}
    for _, block in pairs(blocks) do
      if block.name == "minecraft:diamond_ore" or block.name == "minecraft:deepslate_diamond_ore" then
        local groupExists = false
        for _, group in pairs(groups) do
          for _, groupBlock in pairs(group) do
            if isNeighbor(block, groupBlock) then
              table.insert(group, block)
              groupExists = true
              break
            end
          end
          if groupExists then
            break
          end
        end
        if not groupExists then
          table.insert(groups, {block})
        end
      end
    end
    for _, group in pairs(groups) do
      local output = "Found diamond ore group with " .. #group .. " blocks at (" .. group[1].x .. ", " .. group[1].y .. ", " .. group[1].z .. ")"
      io.write(output .. "\n")
      while true do
        local event, key = os.pullEvent('key')
        if event == 'key' then
          break
        end
      end
    end
  end
 end

scanForDiamondOre()