过渡时更新目标坐标 [英] Update the target coordinates while transitioning

问题描述

我正在用电晕进行游戏，但遇到了问题.我在屏幕上有一个圆圈，我希望它不断跟随触摸坐标.我正在使用transition.to函数这样做，但事实是，只要此函数获得坐标，即使坐标在转换过程中进行了更新，它也会完成转换.

I am making a game in corona and I am facing a problem. I have a circle on screen and I want it to follow the touch coordinates continuously. I am using transition.to function to do so but the thing is, whenever this function get a coordinate, it completes the transition even if the coordinates are updated during the transition.

if event.phase == "began" or event.phase == "moved" then
    follow = true
    touchX = event.x; touchY = event.y
elseif event.phase == "ended" then
    follow = false
end

在另一个功能中，我正在这样做

And in another function, I am doing this

if follow == true then
    transition.to(circle, {time = 500, x = touchX, y = touchY, transition = easing.inOutQuad})
end

该代码可以轻松实现简单的触摸，但是我希望圆圈即使在移动时也能跟随触摸.

The code works fine for simple touch but I want the circle to follow the touch even when it's moving.

推荐答案

有一些示例可以解决您的问题.

There are some examples which may solve your problem.

引用:

1)卡洛斯在电晕社区中发布的飞行路径.

1) Flight Path posted by carlos in corona Community.

2)renvis

示例:

local circle = display.newCircle(10,10,20)
circle.x = 160
circle.y = 160

local olderTransition
local function moveCircle(e)
  if olderTransition ~= nil then
    transition.cancel( olderTransition )
  end
  olderTransition = transition.to(circle,{time=100,x=e.x,y=e.y})
end
Runtime:addEventListener("touch",moveCircle)

继续编码.......:)

Keep Coding.......... :)

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