こんにちは、私はこのイーゼル JS チュートリアルの最初の部分にいます。
http://david.blob.core.windows.net/easeljstutorials/easelJSSpritesTutorial01.html
これは私が作成する必要があるものです (そこからチュートリアルが進むことを心配しないでください笑)
目的に合わせてコードを少し変更しましたが、機能しません。
開始をクリックしてもアニメーションが再生されません。
私のコードに欠けているものはありますか?
JSfiddle は次のとおりです。
いくつかのhtml:
<body>
<div class="description"></div>
<div class="canvasHolder">
<canvas id="game" width="240" height="64" style="background-color:#607559">Your browser doesn't support canvas.
</canvas>
</div>
<button id="Start" onclick="init();">Start</button>
<button id="Reset" onclick="reset();">Reset</button>
ジャバスクリプト:
var canvas, stage, screen_width, screen_height, bmpAnimation;
var imgPlayerRun = new Image();
init() {
//find canvas and load images. Wait for last image to load
alert("Init is being run");
canvas = document.getElementById("game");
canvas.style.background = "white";
imgPlayerRun.onload = handleImageLoad;
imgPlayerRun.onerror = handleImageError;
imgPlayerRun.src = "http://s8.postimg.org/r8i7knr91/test_player_run.png";
}
function () {
stage.removeAllChildren();
createjs.Ticker.removeAllListeners();
stage.update();
}
function handleImageLoad(e) {
startGame();
}
function startGame() {
alert("startGame is being run");
stage = new createjs.Stage("canvas");
//grab canvas width and height for later calculations
screen_width = canvas.width;
screen_height = canvas.height;
//create spritesheet and assign associated data
var spriteSheet = new createjs.SpriteSheet({
//image to use
images: [imgPlayerRun],
//width height and registration point of each sprite
frames: {
width: 47,
height: 47,
regX: 32,
regY: 32
},
animations: {
walk: [0, 9, "walk"]
}
});
//create bitmap animation instance to display the playback the animation sequence
bmpAnimation = new createjs.BitmapAnimation(spriteSheet);
//start playing the first sequence
bmpAnimation.gotoAndPlay("walk"); //animate!!!
//set up a shadow - note shadows are ridiculously resource intensive - use if necessary only
bmpAnimation.shadow = new createjs.Shadow("#454", 0, 5, 4);
bmpAnimation.name = player1;
bmpAnimation.direction = 90;
bmpAnimation.vX = 4;
bmpAnimation.x = 16;
bmpAnimation.y = 32;
//have each player start at a specific frame
bmpAnimation.currentFrame = 0;
stage.addChild(bmpAnimation);
//we want to do some work before we update the canvas
//otherwise we could use Ticker.addListener(stage)
createjs.Ticker.addListener(window);
createjs.Ticker.useRAF = true;
//best frame rate targeted 60 fps
createjs.Ticker.setFPS(60);
}
//called if there is an error loading the image (usually due to a 404)
function handleImageError(e) {
console.log("Error Loading Image: " + e.target.src);
}
function tick() {
//hit testing the screen width, otherwise our sprite would disappear
if (bmpAnimation.x >= screen_width - 12) { //- 12 as this is a quarter of our sprite width and so should look like actually hits the sprite edge and not a box
//we've reached the right side of our screen
//we need to walk left now and go back to our initial position
bmpAnimation.direction = -90;
}
if (bmpAnimation.x < 12) {
//we've reached the left side of our screen
//we need to need to walk right now
bmpAnimation.direction = 90;
}
//moving the sprite based on the direction and the speed
if (bmpAnimation.direction == 90) {
bmpAnimation.x += bmpAnimation.vX;
} else {
bmpAnimation.x -= bmpAnimation.vX;
}
//update the stage
stage.update();
}