/******************************************************************
 * Copyright(C) 2019 - 2020 Nx Studio
 *
 * 常驻悬停层
 *
 *                                  
 ******************************************************************/

const BridgeWindow = require( "bridge.window" );

cc.Class( {

    extends: BridgeWindow,

    properties: {

        nodBP: { default: null, type: cc.Node },
    },

    // 载入
    onLoad: function() {

        // 显隐
        this.nodBP.active = false;

        // 视图监听
        this.vbind( [
            [ "BPChanged", this.onBPChanged.bind( this ) ]
        ] );

    },

    // 销毁
    onDestroy: function() {

        // 视图监听解除
        this.vunbind();

    },

    // 更新
    update: function( _dt ) {

        // BP更新
        if( this.nodBP.active ) {

            // 递进
            if( this.bp ) {
                let cur = Math.floor( this.bp.from + this.bp.step * _dt );
                if( this.bp.step > 0 ) {
                    this.bp.from = Math.min( cur, this.bp.to );
                } else {
                    this.bp.from = Math.max( cur, this.bp.to );
                }
                this.bp.now.string = this.bp.from.toString();
                if( this.bp.from == this.bp.to ) {
                    this.bp = null;
                }
            }

            // 延时关闭
            this.bpTime -= _dt;
            if( this.bpTime <= 0 ) {
                this.bp = null;
                this.nodBP.active = false;
            }
        }

    },

    // 战力改变
    onBPChanged: function( _cur, _old, _init ) {

        if( _init ) {
            return;
        }
        
        // 无效
        if( nx.dt.arrEmpty( _cur ) || 
            _cur[0] == _cur[1] ) {
            return;
        }

        // 参数配置
        this.bp = {
            ofs     : _cur[0],
            from    : _cur[1],
            to      : _cur[0] + _cur[1],
            step    : _cur[0] * 2,
        };
        
        this.bp.now = nx.gui.setString( this.nodBP, "info/now", this.bp.from );
        if( this.bp.ofs > 0 ) {
            nx.gui.setActive( this.nodBP, "info/inc", true );
            nx.gui.setActive( this.nodBP, "info/dec", false );
            nx.gui.setString( this.nodBP, "info/inc", this.bp.ofs.toString() );
        } else {
            nx.gui.setActive( this.nodBP, "info/inc", false );
            nx.gui.setActive( this.nodBP, "info/dec", true );
            nx.gui.setString( this.nodBP, "info/dec", this.bp.ofs.toString() );
        }

        this.bpTime = 1.5;
        this.nodBP.active = true;
        
    },

} );