tianta/libs/loader.js
2022-10-17 02:58:52 +13:00

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/*
loader.js负责对资源的加载
*/
"use strict";
function loader () {
this._init();
}
loader.prototype._init = function () {
}
////// 设置加载进度条进度 //////
loader.prototype._setStartProgressVal = function (val) {
core.dom.startTopProgress.style.width = val + '%';
}
////// 设置加载进度条提示文字 //////
loader.prototype._setStartLoadTipText = function (text) {
core.dom.startTopLoadTips.innerText = text;
}
loader.prototype._load = function (callback) {
if (main.useCompress) {
this._load_async(callback);
} else {
this._load_sync(callback);
}
}
loader.prototype._load_sync = function (callback) {
this._loadAnimates_sync();
this._loadMusic_sync();
core.loader._loadMaterials_sync(function () {
core.loader._loadExtraImages_sync(function () {
core.loader._loadAutotiles_sync(function () {
core.loader._loadTilesets_sync(callback);
})
})
});
}
loader.prototype._load_async = function (callback) {
core.loader._setStartLoadTipText('正在加载资源文件...');
var all = {};
var _makeOnProgress = function (name) {
if (!all[name]) all[name] = { loaded: 0, total: 0, finished: false };
return function (loaded, total) {
all[name].loaded = loaded;
all[name].total = total;
var allLoaded = 0, allTotal = 0;
for (var one in all) {
allLoaded += all[one].loaded;
allTotal += all[one].total;
}
if (allTotal > 0) {
if (allLoaded == allTotal) {
core.loader._setStartLoadTipText("正在处理资源文件... 请稍候...");
} else {
core.loader._setStartLoadTipText('正在加载资源文件... ' +
core.formatSize(allLoaded) + " / " + core.formatSize(allTotal) +
" (" + (allLoaded / allTotal * 100).toFixed(2) + "%)");
}
core.loader._setStartProgressVal(allLoaded / allTotal * 100);
}
};
}
var _makeOnFinished = function (name) {
return function () {
setTimeout(function () {
all[name].finished = true;
for (var one in all) {
if (!all[one].finished) return;
}
callback();
});
}
}
this._loadAnimates_async(_makeOnProgress('animates'), _makeOnFinished('animates'));
this._loadMusic_async(_makeOnProgress('sounds'), _makeOnFinished('sounds'));
this._loadMaterials_async(_makeOnProgress('materials'), _makeOnFinished('materials'));
this._loadExtraImages_async(_makeOnProgress('images'), _makeOnFinished('images'));
this._loadAutotiles_async(_makeOnProgress('autotiles'), _makeOnFinished('autotiles'));
this._loadTilesets_async(_makeOnProgress('tilesets'), _makeOnFinished('tilesets'));
}
// ----- 加载资源文件 ------ //
loader.prototype._loadMaterials_sync = function (callback) {
this._setStartLoadTipText("正在加载资源文件...");
this.loadImages("materials", core.materials, core.material.images, function () {
core.loader._loadMaterials_afterLoad();
callback();
});
}
loader.prototype._loadMaterials_async = function (onprogress, onfinished) {
this.loadImagesFromZip('project/materials/materials.h5data', core.materials, core.material.images, onprogress, function () {
core.loader._loadMaterials_afterLoad();
onfinished();
});
}
loader.prototype._loadMaterials_afterLoad = function () {
var images = core.splitImage(core.material.images['icons']);
for (var key in core.statusBar.icons) {
if (typeof core.statusBar.icons[key] == 'number') {
core.statusBar.icons[key] = images[core.statusBar.icons[key]];
if (core.statusBar.image[key] != null)
core.statusBar.image[key].src = core.statusBar.icons[key].src;
}
}
}
// ------ 加载使用的图片 ------ //
loader.prototype._loadExtraImages_sync = function (callback) {
core.material.images.images = {};
this._setStartLoadTipText("正在加载图片文件...");
core.loadImages("images", core.images, core.material.images.images, callback);
}
loader.prototype._loadExtraImages_async = function (onprogress, onfinished) {
core.material.images.images = {};
var images = core.images;
// Check .gif
var gifs = images.filter(function (name) {
return name.toLowerCase().endsWith('.gif');
});
images = images.filter(function (name) {
return !name.toLowerCase().endsWith('.gif');
});
this.loadImagesFromZip('project/images/images.h5data', images, core.material.images.images, onprogress, onfinished);
// gif没有被压缩在zip中延迟加载...
gifs.forEach(function (gif) {
this.loadImage("images", gif, function (id, image) {
if (image != null) {
core.material.images.images[gif] = image;
}
});
}, this);
}
// ------ 加载自动元件 ------ //
loader.prototype._loadAutotiles_sync = function (callback) {
core.material.images.autotile = {};
var keys = Object.keys(core.material.icons.autotile);
var autotiles = {};
this._setStartLoadTipText("正在加载自动元件...");
this.loadImages("autotiles", keys, autotiles, function () {
core.loader._loadAutotiles_afterLoad(keys, autotiles);
callback();
});
}
loader.prototype._loadAutotiles_async = function (onprogress, onfinished) {
core.material.images.autotile = {};
var keys = Object.keys(core.material.icons.autotile);
var autotiles = {};
this.loadImagesFromZip('project/autotiles/autotiles.h5data', keys, autotiles, onprogress, function () {
core.loader._loadAutotiles_afterLoad(keys, autotiles);
onfinished();
});
}
loader.prototype._loadAutotiles_afterLoad = function (keys, autotiles) {
// autotile需要保证顺序
keys.forEach(function (v) {
core.material.images.autotile[v] = autotiles[v];
});
setTimeout(function () {
core.maps._makeAutotileEdges();
});
}
// ------ 加载额外素材 ------ //
loader.prototype._loadTilesets_sync = function (callback) {
core.material.images.tilesets = {};
this._setStartLoadTipText("正在加载额外素材...");
this.loadImages("tilesets", core.tilesets, core.material.images.tilesets, function () {
core.loader._loadTilesets_afterLoad();
callback();
});
}
loader.prototype._loadTilesets_async = function (onprogress, onfinished) {
core.material.images.tilesets = {};
this.loadImagesFromZip('project/tilesets/tilesets.h5data', core.tilesets, core.material.images.tilesets, onprogress, function () {
core.loader._loadTilesets_afterLoad();
onfinished();
});
}
loader.prototype._loadTilesets_afterLoad = function () {
// 检查宽高是32倍数如果出错在控制台报错
for (var imgName in core.material.images.tilesets) {
var img = core.material.images.tilesets[imgName];
if (img.width % 32 != 0 || img.height % 32 != 0) {
console.warn("警告!" + imgName + "的宽或高不是32的倍数");
}
if (img.width * img.height > 32 * 32 * 3000) {
console.warn("警告!" + imgName + "上的图块素材个数大于3000");
}
}
}
// ------ 实际加载一系列图片 ------ //
loader.prototype.loadImages = function (dir, names, toSave, callback) {
if (!names || names.length == 0) {
if (callback) callback();
return;
}
var items = 0;
for (var i = 0; i < names.length; i++) {
this.loadImage(dir, names[i], function (id, image) {
core.loader._setStartLoadTipText('正在加载图片 ' + id + "...");
if (toSave[id] !== undefined) {
if (image != null)
toSave[id] = image;
return;
}
toSave[id] = image;
items++;
core.loader._setStartProgressVal(items * (100 / names.length));
if (items == names.length) {
if (callback) callback();
}
})
}
}
loader.prototype.loadImage = function (dir, imgName, callback) {
try {
var name = imgName;
if (name.indexOf(".") < 0)
name = name + ".png";
var image = new Image();
image.onload = function () {
image.setAttribute('_width', image.width);
image.setAttribute('_height', image.height);
callback(imgName, image);
}
image.onerror = function () {
callback(imgName, null);
}
image.src = 'project/' + dir + '/' + name + "?v=" + main.version;
if (name.endsWith('.gif'))
callback(imgName, null);
}
catch (e) {
console.error(e);
}
}
// ------ 从zip中加载一系列图片 ------ //
loader.prototype.loadImagesFromZip = function (url, names, toSave, onprogress, onfinished) {
if (!names || names.length == 0) {
if (onfinished) onfinished();
return;
}
core.unzip(url + "?v=" + main.version, function (data) {
var cnt = 1;
names.forEach(function (name) {
var imgName = name;
if (imgName.indexOf('.') < 0) imgName += '.png';
if (imgName in data) {
var img = new Image();
var url = URL.createObjectURL(data[imgName]);
cnt++;
img.onload = function () {
cnt--;
URL.revokeObjectURL(url);
img.setAttribute('_width', img.width);
img.setAttribute('_height', img.height);
if (cnt == 0 && onfinished) onfinished();
}
img.src = url;
toSave[name] = img;
}
});
cnt--;
if (cnt == 0 && onfinished) onfinished();
}, null, false, onprogress);
}
// ------ 加载动画文件 ------ //
loader.prototype._loadAnimates_sync = function () {
this._setStartLoadTipText("正在加载动画文件...");
if (main.supportBunch) {
if (core.animates.length > 0) {
core.http('GET', '__all_animates__?v=' + main.version + '&id=' + core.animates.join(','), null, function (content) {
var u = content.split('@@@~~~###~~~@@@');
for (var i = 0; i < core.animates.length; ++i) {
if (u[i] != '') {
core.material.animates[core.animates[i]] = core.loader._loadAnimate(u[i]);
} else {
console.error('无法找到动画文件' + core.animates[i] + '');
}
}
}, "text/plain; charset=x-user-defined");
}
return;
}
core.animates.forEach(function (t) {
core.http('GET', 'project/animates/' + t + ".animate?v=" + main.version, null, function (content) {
core.material.animates[t] = core.loader._loadAnimate(content);
}, function (e) {
console.error(e);
core.material.animates[t] = null;
}, "text/plain; charset=x-user-defined")
});
}
loader.prototype._loadAnimates_async = function (onprogress, onfinished) {
core.unzip('project/animates/animates.h5data?v=' + main.version, function (animates) {
for (var name in animates) {
if (name.endsWith(".animate")) {
var t = name.substring(0, name.length - 8);
if (core.animates.indexOf(t) >= 0)
core.material.animates[t] = core.loader._loadAnimate(animates[name]);
}
}
onfinished();
}, null, true, onprogress);
}
loader.prototype._loadAnimate = function (content) {
try {
content = JSON.parse(content);
var data = {};
data.ratio = content.ratio;
data.se = content.se;
data.pitch = content.pitch;
data.images = [];
content.bitmaps.forEach(function (t2) {
if (!t2) {
data.images.push(null);
}
else {
try {
var image = new Image();
image.src = t2;
data.images.push(image);
} catch (e) {
console.error(e);
data.images.push(null);
}
}
})
data.frame = content.frame_max;
data.frames = [];
content.frames.forEach(function (t2) {
var info = [];
t2.forEach(function (t3) {
info.push({
'index': t3[0],
'x': t3[1],
'y': t3[2],
'zoom': t3[3],
'opacity': t3[4],
'mirror': t3[5] || 0,
'angle': t3[6] || 0,
})
})
data.frames.push(info);
});
return data;
}
catch (e) {
console.error(e);
return null;
}
}
// ------ 加载音乐和音效 ------ //
loader.prototype._loadMusic_sync = function () {
this._setStartLoadTipText("正在加载音效文件...");
core.bgms.forEach(function (t) {
core.loader.loadOneMusic(t);
});
core.sounds.forEach(function (t) {
core.loader.loadOneSound(t);
});
// 直接开始播放
core.playBgm(main.startBgm);
}
loader.prototype._loadMusic_async = function (onprogress, onfinished) {
core.bgms.forEach(function (t) {
core.loader.loadOneMusic(t);
});
core.unzip('project/sounds/sounds.h5data?v=' + main.version, function (data) {
// 延迟解析
setTimeout(function () {
for (var name in data) {
if (core.sounds.indexOf(name) >= 0) {
core.loader._loadOneSound_decodeData(name, data[name]);
}
}
});
onfinished();
}, null, false, onprogress);
// 直接开始播放
core.playBgm(main.startBgm);
}
loader.prototype.loadOneMusic = function (name) {
var music = new Audio();
music.preload = 'none';
if (main.bgmRemote) music.src = main.bgmRemoteRoot + core.firstData.name + '/' + name;
else music.src = 'project/bgms/' + name;
music.loop = 'loop';
core.material.bgms[name] = music;
}
loader.prototype.loadOneSound = function (name) {
core.http('GET', 'project/sounds/' + name + "?v=" + main.version, null, function (data) {
core.loader._loadOneSound_decodeData(name, data);
}, function (e) {
console.error(e);
core.material.sounds[name] = null;
}, null, 'arraybuffer');
}
loader.prototype._loadOneSound_decodeData = function (name, data) {
if (data instanceof Blob) {
var blobReader = new zip.BlobReader(data);
blobReader.init(function () {
blobReader.readUint8Array(0, blobReader.size, function (uint8) {
core.loader._loadOneSound_decodeData(name, uint8.buffer);
})
});
return;
}
try {
core.musicStatus.audioContext.decodeAudioData(data, function (buffer) {
core.material.sounds[name] = buffer;
}, function (e) {
console.error(e);
core.material.sounds[name] = null;
})
}
catch (e) {
console.error(e);
core.material.sounds[name] = null;
}
}
loader.prototype.loadBgm = function (name) {
name = core.getMappedName(name);
if (!core.material.bgms[name]) return;
// 如果没开启音乐,则不预加载
if (!core.musicStatus.bgmStatus) return;
// 是否已经预加载过
var index = core.musicStatus.cachedBgms.indexOf(name);
if (index >= 0) {
core.musicStatus.cachedBgms.splice(index, 1);
}
else {
// 预加载BGM
this._preloadBgm(core.material.bgms[name]);
// core.material.bgms[name].load();
// 清理尾巴
if (core.musicStatus.cachedBgms.length == core.musicStatus.cachedBgmCount) {
this.freeBgm(core.musicStatus.cachedBgms.pop());
}
}
// 移动到缓存最前方
core.musicStatus.cachedBgms.unshift(name);
}
loader.prototype._preloadBgm = function (bgm) {
bgm.volume = 0;
bgm.play();
}
loader.prototype.freeBgm = function (name) {
name = core.getMappedName(name);
if (!core.material.bgms[name]) return;
// 从cachedBgms中删除
core.musicStatus.cachedBgms = core.musicStatus.cachedBgms.filter(function (t) {
return t != name;
});
// 清掉缓存
core.material.bgms[name].removeAttribute("src");
core.material.bgms[name].load();
core.material.bgms[name] = null;
if (name == core.musicStatus.playingBgm) {
core.musicStatus.playingBgm = null;
}
// 三秒后重新加载
setTimeout(function () {
core.loader.loadOneMusic(name);
}, 3000);
}