所以我正在尝试这个:
buttons = {
{imageNothing = love.graphics.newImage("buildingButtonNotSelected.png"), imageHovering = love.graphics.newImage("buildingButtonHovering.png"), imageSelected = love.graphics.newImage("buildingButton.png"),imgW = buttons[1].imageNothing:getWidth(), imgH = buttons[1].imageNothing:getHeight(), imgX = windowWidth - buttons[1].imgW, imgY = windowHeight - buttons[1].imgH, selected = false, hovering = false}
}
我目前收到此错误: 尝试索引全局“按钮”(零值)
有什么想法吗?
答案 0 :(得分:3)
你不能。
在计算表构造函数之前,不会创建表。所以buttons
没有在表构造函数中定义。
您可以在不使用表构造函数中的`按钮的情况下初始化buttons
,然后稍后添加这些字段。
buttons = {
{
imageNothing = love.graphics.newImage("buildingButtonNotSelected.png"),
imageHovering = love.graphics.newImage("buildingButtonHovering.png"),
imageSelected = love.graphics.newImage("buildingButton.png"),
selected = false,
hovering = false
}
}
buttons.imgW = buttons[1].imageNothing:getWidth()
buttons.imgH = buttons[1].imageNothing:getHeight()
buttons.imgX = windowWidth - buttons[1].imgW
buttons.imgY = windowHeight - buttons[1].imgH