knifehit/assets/scripts/Life.js

cc.Class({
    extends: cc.Component,

    properties: {
        knifePrefab: cc.Prefab,
        knifeCount: {//飞刀数量
			default: 6,
            type: "Integer"
		},
        knifeIndex: {//当前飞刀索引，从0开始
            default: 0,
            type: "Integer"
        },
        knifeArr: {//飞刀Node存储队列
            default: []
        },
        isEnd: {
			default: false,
            type: "Boolean"
        }
    },

	/**
	 * 初始化飞刀数量
	 * @param {飞刀数量} knifeCount 
	 */
    init (knifeCount) {
		if(knifeCount) {
			this.knifeCount = knifeCount
		}
        
        for(let i = 0; i < this.knifeCount; i++) {
            this.knifeArr[i] = cc.instantiate(this.knifePrefab)
            this.node.addChild(this.knifeArr[i])
            this.knifeArr[i].setPositionY(-30 * (i + 1))
        }
    },

	/**
	 * 减少一把飞刀
	 */
    minus () {
        if(!this.isEnd) {
            let cur = this.knifeArr[this.knifeIndex]
            cur.getComponent('Lifechip').play()
    
            this.knifeIndex += 1;
            if(this.knifeIndex == this.knifeCount) {
                this.isEnd = true
            }
        }
    },
	
	/**
	 * 重置飞刀队列
	 */
    reset () {
        this.knifeArr = []
	},

    start () {

    },

    // update (dt) {},
});