cocos_creator_mvvm_tools/assets/Script/modelView/VMModify.ts

import { VM } from './JsonOb';


const {ccclass, property,menu} = cc._decorator;

/**限制值边界范围的模式 */
enum CLAMP_MODE {
    MIN,
    MAX,
    MIN_MAX,
}

/**
 * [VM-Modify]
 * 动态快速的修改模型的数值,使用按钮 绑定该组件上的函数，即可动态调用
 * 修改 Model 的值
 */
@ccclass
@menu('ModelViewer/VM-Modify(修改Model)')
export default class VMModify extends cc.Component {

    @property
    watchPath:string = "";

    @property()
    valueClamp:boolean = false;

    @property({
        type:cc.Enum(CLAMP_MODE),
        visible:function(){return this.valueClamp === true}
    })
    valueClampMode:CLAMP_MODE = CLAMP_MODE.MIN_MAX;

    @property({
        visible:function(){return this.valueClamp === true && this.valueClampMode !== CLAMP_MODE.MAX}
    })
    valueMin:number = 0;
    
    @property({
        visible:function(){return this.valueClamp === true && this.valueClampMode !== CLAMP_MODE.MIN}
    })
    valueMax:number = 1;


    _vm = VM;

    // LIFE-CYCLE CALLBACKS:

    start () {

    }

    //限制最终结果的取值范围
    private clampValue(res){
        let min = this.valueMin;
        let max = this.valueMax;
        if(this.valueClamp==false)return res;
        switch (this.valueClampMode) {
            case CLAMP_MODE.MIN_MAX:
                if(res>max)res = max;
                if(res<min)res = min;
                break;
            case CLAMP_MODE.MIN:
                if(res<min)res = min;  
                break;
            case CLAMP_MODE.MAX:
                if(res>max)res = max;
                break;
            default:
                break;
        }

        return res;
    }


    vAddInt(e,data){
        this.vAdd(e,data,true);
    }

    vSubInt(e,data){
        this.vSub(e,data,true);
    }

    vMulInt(e,data){
        this.vMul(e,data,true);
    }

    vDivInt(e,data){
        this.vDiv(e,data,true);
    }

    vAdd(e:cc.Event,data:any,int:boolean = false){
        let a = parseFloat(data);
        let res =  this._vm.getValue(this.watchPath,0) + a;
        if(int){res = Math.round(res)}
        this._vm.setValue(this.watchPath,this.clampValue(res));
    }

    vSub(e,data:any,int:boolean = false){
        let a = parseFloat(data);
        let res =  this._vm.getValue(this.watchPath,0) - a;
        if(int){res = Math.round(res)}
        this._vm.setValue(this.watchPath,this.clampValue(res));
    }

    vMul(e,data:any,int:boolean = false){
        let a = parseFloat(data);
        let res =  this._vm.getValue(this.watchPath,0) * a;
        if(int){res = Math.round(res)}
        this._vm.setValue(this.watchPath,this.clampValue(res));
    }

    vDiv(e,data:any,int:boolean = false){
        let a = parseFloat(data);
        let res =  this._vm.getValue(this.watchPath,0) / a;
        if(int){res = Math.round(res)}
        this._vm.setValue(this.watchPath,this.clampValue(res));
    }

    vString(e,data:any){
        let a = data;
        this._vm.setValue(this.watchPath,a);
    }

    vNumberInt(e,data:any){ 
       this.vNumber(data,true);
    }

    vNumber(e,data:any,int:boolean = false){ 
        let a = parseFloat(data);
        if(int){a = Math.round(a)}
        this._vm.setValue(this.watchPath,this.clampValue(a));
    }

    // update (dt) {}
}