lua - 在 Lua 中为图像提供 ID(Corona SDK)

Question

我正在尝试用 Lua 制作一款类似于 Candy Crush 的游戏。这是代码:

local images = {
    "images/beer.png",
    "images/beef.png",
    "images/canned_food.png",
    "images/cup_ice_cream.png",
    "images/french_fries.png",
    "images/pepper.png"
}



local rowcount = 8
local colcount = 4

local blockWidth = display.contentWidth / (colcount*4)
local blockHeight = display.contentWidth / (rowcount*2)

local row
local col
local pan = 3
for row = 1, rowcount do
    for col = 1, colcount do
        local x = (col - 1) * blockWidth + pan
        local y = (row + 1) * blockHeight + pan
        local block = display.newImage(images[math.random(1, 6)], x, y)
        block:addEventListener("touch", blockTouch)
    end
end

我需要知道哪个图像在移动，以知道他们是否在新位置上将 3 个图像排成一行。

所以我的问题是，我怎样才能有一个 id 或标识符来知道用户正在表中移动哪个图像？

感谢您的帮助

Answer 1

您必须将 ID 放入您创建的每个对象中，例如:

local function getID(event)
   t = event.target
   print(t.id)
end


local beef = display.newImage("images/beef.png",)
beef.id = "beef"

local canned_food= display.newImage("images/canned_foods.png",)
canned_food.id = "cannedfoods"

local fries = display.newImage("images/fench_fries.png",)
fries.id = "fries"

beef:addEventListener("tap", getID())
canned_food:addEventListener("tap", getID())
fries:addEventLister("tap", getID())

希望这有帮助:)