我在编写Flash中的动画状态变化时遇到了麻烦。我有一个小的大行星风格的游戏，3个水平行，角色可以跳跃。我在补间中设置了动画，但是我无法让角色从运行动画转换为跳回/跳转动画，然后在完成图层之间的转换时返回运行动画。
运行动画帧是1 - 60，跳回一层是61，向前跳一层是62.我还没有开始担心静止，所以它没有帧。
编辑：我删除了anmatePlayer函数并将动画控制代码移动到checkEveryFrame函数中。我只为动画制作了一个单独的功能，因为我不确定它应该去哪里。
package
{
import flash.display.MovieClip;
import flash.events.Event;
import flash.events.MouseEvent;
import fl.transitions.Tween;
import fl.transitions.easing.*;
import fl.transitions.TweenEvent;
public class Main_Test_2 extends MovieClip
{
// variables
private var cam:MovieClip = new MovieClip();
private var player:Player = new Player();
private var topPosition:uint = 250;
private var centerPosition:uint = 430;
private var bottomPosition:uint = 610;
private var tweenSpeed:Number = 0.33;
private var UI:UserInterface = new UserInterface();
public function Main_Test_2():void
{
// initialize
init();
}
public function init():void
{
// initialize variables
stage.addChild (cam);
player.x = 200;
player.y = bottomPosition;
cam.addChild (UI);
cam.addChild (player);
// add event listeners
stage.addEventListener(Event.ENTER_FRAME, checkEveryFrame);
UI.topButton.addEventListener(MouseEvent.CLICK, topButtonClick);
UI.centerButton.addEventListener(MouseEvent.CLICK, centerButtonClick);
UI.bottomButton.addEventListener(MouseEvent.CLICK, bottomButtonClick);
}
public function checkEveryFrame(event:Event):void
{
cam.x -= player.x - player.x;
cam.y -= player.y - player.y;
player.vx = player.x - player.prevX;
player.vy = player.y - player.prevY;
player.prevX = player.x;
player.prevY = player.y;
/*if (player.y != topPosition || player.y != centerPosition || player.y != topPosition)
{
player.gotoAndStop (61);
}
else if (player.y == topPosition || player.y == centerPosition || player.y == topPosition)
{
player.gotoAndStop (1);
}*/
if (player.currentFrame == 60)
{
player.gotoAndStop (1);
}
else if (player.currentFrame < 60)
{
player.gotoAndStop (player.currentFrame + 1);
}
/*if (player.y < player.prevY)
{
player.gotoAndStop (61);
}
else if (player.y > player.prevY)
{
player.gotoAndStop (62);
}
else if (player.vy == 0)
{
player.gotoAndStop (1);
}*/
}
public function topButtonClick (event:MouseEvent):void
{
trace ("Top Click");
if (player.y >= bottomPosition)
{
var tween01:Tween = new Tween (player, "y", None.easeNone, bottomPosition, centerPosition, tweenSpeed, true);
}
else if (player.y == centerPosition)
{
var tween02:Tween = new Tween (player, "y", None.easeNone, centerPosition, topPosition, tweenSpeed, true);
}
else if (player.y < topPosition)
{
player.y = topPosition;
}
}
public function centerButtonClick (event:MouseEvent):void
{
trace ("Center Click");
if (player.y > centerPosition)
{
var tween01:Tween = new Tween (player, "y", None.easeNone, bottomPosition, centerPosition, tweenSpeed, true);
}
else if (player.y < centerPosition)
{
var tween03:Tween = new Tween (player, "y", None.easeNone, topPosition, centerPosition, tweenSpeed, true);
}
}
public function bottomButtonClick (event:MouseEvent):void
{
trace ("Bottom Click");
if (player.y <= topPosition)
{
var tween03:Tween = new Tween (player, "y", None.easeNone, topPosition, centerPosition, tweenSpeed, true);
}
else if (player.y == centerPosition)
{
var tween4:Tween = new Tween (player, "y", None.easeNone, centerPosition, bottomPosition, tweenSpeed, true);
}
else if (player.y > bottomPosition)
{
player.y = bottomPosition;
}
}
}
}
答案 0 :(得分：0)
查看实际调用animatePlayer的代码会很有帮助;无论如何，下面是一个解决方案。
不是依靠MovieClip制作动画，而是在现有的checkEveryFrame中处理它，从而为您提供更精确的控制，以便在您需要时准确地更改动画状态。我已经冒昧地将您的UI点击操作统一到一个更易于维护的功能中。此外，由于缺少您的键绑定功能，我为了演示而添加了playerState更改到用户界面。
尽我所知，这应该编译，但是如果没有剩下的对象，我就无法尝试。
package {
import flash.display.MovieClip;
import flash.events.Event;
import flash.events.MouseEvent;
import fl.transitions.Tween;
import fl.transitions.easing.*;
import fl.transitions.TweenEvent;
public class Main_Test_2 extends MovieClip
// variables
private var cam:MovieClip = new MovieClip();
private var player:Player = new Player();
private var tweenSpeed:Number = 0.33;
private var UI:UserInterface = new UserInterface();
public function Main_Test_2():void {
// initialize
init();
}
public function init():void {
// initialize variables
stage.addChild(cam);
player.x = 200;
player.y = playerTracks[0];
cam.addChild(UI);
cam.addChild(player);
// add event listeners
stage.addEventListener(Event.ENTER_FRAME, checkEveryFrame);
UI.topButton.addEventListener(MouseEvent.CLICK, movePlayer);
UI.centerButton.addEventListener(MouseEvent.CLICK, movePlayer);
UI.bottomButton.addEventListener(MouseEvent.CLICK, movePlayer);
}
public function checkEveryFrame(event:Event):void {
cam.x -= player.x - player.x;
cam.y -= player.y - player.y;
player.vx = player.x - player.prevX;
player.vy = player.y - player.prevY;
player.prevX = player.x;
player.prevY = player.y;
// Animation control
var a:Array = animations[playerState]; // current animation set
if (a.length == 2) {
var maxFrames:int = a[1] - a[0]; // Normalize the max value
var currentFrame:int = player.currentFrame - a[0]; // Normalize the current value
var nextFrame:int = normalizedCurrentFrame%maxFrames + a[0] // Modulus of max, and return to actual
player.gotoAndStop(nextFrame)
}
}
private var playerState:String = "run";
private var animations:Object = {
"run":[1,60],
"jump":[61],
"jumpForward":[62]
}
private var playerTracks:Array = [610, 430, 250];
private var playerLocIndex:int = 0;
public function movePlayer(e:MouseEvent):void {
// Based on the button clicked, increase/decrease/set the index of the destination
switch (e.currentTarget) {
case UI.topButton:
playerState = "jump";
playerLocIndex++;
if (playerLocIndex > 2) { playerLocIndex = 2; } // Clamp upper
break;
case UI.centerButton:
playerState = "run";
playerLocIndex = 1;
break;
case UI.bottomButton:
playerState = "jumpForward";
playerLocIndex--;
if (playerLocIndex < 0) { playerLocIndex = 1; } // Clamp lower
break;
}
new Tween(player, "y", None.easeNone, player.y, playerTracks[playerLocIndex], tweenSpeed, true);
}
}
}