cocos creator 内存不释放问题

598291606 · 2019年07月3日 07:13

整个地图图块管理的代码如下：
import { Point, get_l } from “…/utils/tool”;
import { GameUtils } from “…/utils/GameUtils”;

const {ccclass, property} = cc._decorator;

let LOAD_MAP_L:number = 1000; // 加载地图检测距离
let UNLOAD_MAP_L:number = 2000; // 加载地图检测距离

let B_MAP_W:number = 13120;
let B_MAP_H:number = 7041;

let MAP_SUM:number = 112; // 图块总数
let MAP_START_INDEX:number = 1; //图块起始编号

/**

获得图块尺寸
@param map_index
*/
function get_map_size(map_index) {
let w,h;
if (map_index % 14 == 0)w = 640;
else w = 960;
if (map_index / 14 > 7)h = 321;
else h = 960;
return {weight:w,height:h};
}

/**

获得图块的中心点坐标
@param map_index
/
function get_map_centre(map_index) {
let x,y;
let size = get_map_size(map_index);
x = size.weight/2;
y = size.height/2;
let mod = map_index % 14;
if (mod == 0) x += 13 * 960;
else x += (mod-1) * 960;
let dis = map_index / 14;
if (dis > 7) y += 7 * 960;
else y += (Math.ceil(dis) - 1) 960;
y = B_MAP_H - y;
return {x,y};
}

@ccclass
export default class Map extends cc.Component {

@property
map_type:'floor'|'mask' = 'floor';

private is_load:boolean = false;
private load_c_map:number = null; /// 正在加载的图块
private load_e_dic:{} = {}; /// 已经加载完成的图块
private load_maps:number[] = []; /// 待加载地图图块的顺序数组
private map_s:string = '';
private map_e:string = '';
private on_load:boolean = false;
private _tick:number = 0;
private _tick_gc:number = 0;

// onLoad () {}

start () {
    if (this.map_type == 'floor') {
        this.map_s = 'map_cell/images/biqi_';
        this.map_e = '.jpg';
    }
    else if (this.map_type == 'mask') {
        this.map_s = 'mask_cell/images/biqi_mask_';
        this.map_e = '.png';
    }
    this.map_e = "";
    this.on_load = true;
}

del_map(map:number) {
    for (let i = 0; i < this.load_maps.length; i++) {
        const element = this.load_maps[i];
        if (element == map) {
            this.load_maps.splice(i,1);
            return;
        }
    }
}

/***
 *  检查图块是否已经处理或者正在处理或者已加入处理列表
 */
check_map(map:number) {
    if (map == this.load_c_map) return true;
    if (this.load_e_dic[map]) return true;
    for (let i = 0; i < this.load_maps.length; i++) {
        const element = this.load_maps[i];
        if (element == map) return true;
    }
    return false;
}

get_load_maps() {
    let pot:Point = GameUtils.self_player.get_pot();
    let p_pot:Point = {x:pot.x*GameUtils.map_scale,y:pot.y*GameUtils.map_scale};
    for (let index = MAP_START_INDEX; index <= MAP_SUM; index++) {
        let map_pot:Point = get_map_centre(index);
        if (get_l(p_pot,map_pot) < LOAD_MAP_L) {
            if(this.check_map(index) == false)this.load_maps.push(index);
        }
    }
}

get_map_name() {
    let index = this.load_c_map;
    if (index < 10) return this.map_s + '0' +index + this.map_e;
    else return this.map_s + index + this.map_e;
}

/**
 * 开始加载地图
 */
start_load_c_map(c_index:number) {
    if (this.is_load) return;
    this.load_c_map = c_index;
    let name:string = this.get_map_name();
    console.log("xiaowa ==== start load :",name);
    let map_pot:Point = get_map_centre(this.load_c_map);
    let map_size:{weight:number,height:number} = get_map_size(this.load_c_map);
    cc.loader.loadRes(name,cc.SpriteFrame,function(err,spriteFrame){
        if (err) {
            cc.error(err.message || err);
            return;
        }
        let node:cc.Node = new cc.Node();
        node.addComponent(cc.Sprite);
        let spr:cc.Sprite = node.getComponent(cc.Sprite);
        spr.spriteFrame = spriteFrame;
        spr.trim = false;
        spr.sizeMode = cc.Sprite.SizeMode.RAW;
        spr.node.setAnchorPoint(0.5,0.5);
        spr.node.setPosition(map_pot.x,map_pot.y);
        // console.log("xiaowa ==== index:",this.load_c_map,"map_pot:",map_pot.x,map_pot.y)
        spr.node.parent = this.node;
        this.load_e_dic[this.load_c_map] = {name,spr};
        this.del_map(this.load_c_map);
        this.load_c_map = null;
        this.is_load = false;
    }.bind(this));
    this.is_load = true;
}

load_map() {
    let pot:Point = GameUtils.self_player.get_pot();
    let p_pot:Point = {x:pot.x*GameUtils.map_scale,y:pot.y*GameUtils.map_scale};
    let c_index:number,c_l:number;
    this.load_maps.forEach(index => {
        let map_pot:Point = get_map_centre(index);
        let l:number = get_l(p_pot,map_pot);
        if (!c_index || c_l > l) {
            c_index = index;
            c_l = l;
        }
    });
    if (c_index) {
        this.start_load_c_map(c_index);
    }
    // let d_index:number,d_l:number;
    for (const index in this.load_e_dic) {
        if (this.load_e_dic.hasOwnProperty(index)) {
            const obj:{name:string,spr:cc.Sprite} = this.load_e_dic[index];
            let map_pot:Point = get_map_centre(~~index);
            let l:number = get_l(p_pot,map_pot);
            if (l > UNLOAD_MAP_L) {
                obj.spr.node.removeFromParent();
                cc.loader.releaseRes(obj.name, cc.SpriteFrame);
                delete this.load_e_dic[index];
            }
        }
    }
}

update (dt) {
    this._tick ++;
    if (this._tick >= 60) {
        this._tick = 0;
        this.get_load_maps();
        if (this.load_c_map == null)this.load_map();
    }
    this._tick_gc ++;
    if (this._tick_gc >= 1000) {
        this._tick_gc = 0;
        this.gc();
    }
}

gc() {
    cc.sys.garbageCollect();
}

}

/////////////////////////////////////////////////////////////////
问题：地图的图块可以正常显示和消失，但是内存一直增大，能达到 1个G ，即使我新加了GC 代码进去，依然没有任何效果。

Creator 版本：2.0.8
目标平台： Android / 模拟器均有此问题
详细报错信息，包含调用堆栈：堆栈报内存错误，内存不足
重现方式：
之前哪个版本是正常的：
手机型号：
手机浏览器：
编辑器操作系统：
编辑器之前是否有其它报错：

出现概率：
额外线索：