连连看地体生成算法

function generateRow(rowAmount,ColumnAmount,TypeAmount)

  math.randomseed(os.time())

  local touchObjectArray={}
  local typeUsedAmountArray = {}
  local totalAmount = rowAmount*ColumnAmount-TypeAmount
  local currentItemAmount=0
  local swapTempValue=0

  for i=1,rowAmount do
     for j=1,ColumnAmount do
        local currentType = math.random(TypeAmount)

        currentItemAmount = currentItemAmount+1
        touchObjectArray[currentItemAmount]= currentType

        local currentTypeUsedAmount = typeUsedAmountArray[currentType] or 0
        currentTypeUsedAmount = currentTypeUsedAmount+1
        typeUsedAmountArray[currentType] = currentTypeUsedAmount

        if currentItemAmount>totalAmount then
           break
        end
     end
  end

  for i,v in ipairs(typeUsedAmountArray) do

     if v %2 >0 then
       currentItemAmount = currentItemAmount+1
       touchObjectArray[currentItemAmount] = i
     end
  end

  local leftAmount = totalAmount+TypeAmount-currentItemAmount

  if leftAmount>0 then
     local paddingType = math.random(TypeAmount)

      for i=1, leftAmount do
       --remix the padding value
       local indexToSwap = math.random(currentItemAmount)
       swapTempValue =touchObjectArray[indexToSwap]
       touchObjectArray[indexToSwap]=paddingType

       currentItemAmount = currentItemAmount+1
       touchObjectArray[currentItemAmount]=swapTempValue
      end
  end

  return touchObjectArray
end


local lianLianKanMapArray =generateRow(4,5,4)

for i=1,#lianLianKanMapArray do
    print(lianLianKanMapArray[i])
end