flash - 无物体移动动画

Question

我最近开始闪存编程，我遇到了一个不显示运动的移动功能问题，

我使用的代码：

function cardmove(card){
    xDiff=(playerHand+space+card.width)-card._x;
    yDiff=(Stage.height/2+space)-card._y;
        speedx =xDiff/10;
        speedy =yDiff/10; 
    for (frame=0;frame<10;frame++){
         card._x+=speedx;
         card._y+=speedy;}
    playerHand = card._x ;
}

卡就位，它应该在开始时就正确，并且没有显示任何移动。

Answer 1

Flash 在循环期间不会刷新布局。如果你想移动一些东西，你必须让手在两步之间闪现。

您有两种主要方法，即 setInterval ：

// You need to declare this variables to access them in the function "applyMovement"
var _nInterval:Number;
var _nSteps:Number;

// Yout function
function cardmove(card){
    xDiff=(playerHand+space+card.width)-card._x;
    yDiff=(Stage.height/2+space)-card._y;
    speedx =xDiff/10;
    speedy = yDiff / 10; 

    // Set the steps to 10
    _nSteps = 10;
    // Before start the setInterval, you have to stop a previous one
    clearInterval(_nInterval);
    // You call the function each 41 ms (about 24 fps) with the parameters
    setInterval(this, "applyMovement", 41, card, speedx, speedy);
}
// This function apply the new coodinates
function applyMovement(mc:MovieClip, nX:Number, nY:Number) {
    if (_nSteps >= 0) {
        mc._x += nX;
        mc._y += nY;
    }else {
        clearInterval(_nInterval);
    }
    _nSteps --;
}

或 onEnterFrame ：

// You need to declare this variables to access them in the function "applyMovement"
var _nSteps:Number;
var _mc:MovieClip;
var _nX:Number;
var _nY:Number;

// Yout function
function cardmove(card){
    xDiff=(playerHand+space+card.width)-card._x;
    yDiff=(Stage.height/2+space)-card._y;
    _nX =xDiff/10;
    _nY = yDiff / 10; 

    _mc = card;

    // Set the steps to 10
    _nSteps = 10;
    // You have to use the Delegate function to access to the "good" this in the function
    this.onEnterFrame = mx.utils.Delagate.create(this,applyMovement);
}
// This function apply the new coodinates
function applyMovement() {
    if (_nSteps >= 0) {
        _mc._x += nX;
        _mc._y += nY;
    }else {
        delete this.onEnterFrame;
    }
    _nSteps --;
}