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Create index.js

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tzx 2021-06-17 08:45:56 +08:00 committed by GitHub
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import brightness from '@system.brightness';
let numbers,newNumbers;
export default{
data:{
score:0,
best:0,
tiles:[],
isShow:false,
},
onInit() {
this.isShow=false;
this.score=0;
this.tiles=[{text:""},{text:""},{text:""},{text:""},{text:""},{text:""},{text:""},{text:""},{text:""},{text:""},{text:""},{text:""},{text:""},{text:""},{text:""},{text:""}];
numbers=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0];
newNumbers=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0];
this.supplyNumber();
this.supplyNumber();
this.updateView();
brightness.setKeepScreenOn({keepScreenOn: true,});
brightness.setMode({mode: 1,});
},
supplyNumber(){
let positions=[];
for(let i=0;i<=15;i++){
if(!newNumbers[i]) positions.push(i);
}
let h=Math.floor(Math.random()*positions.length);
if (Math.random()<=0.8){
newNumbers[positions[h]]=2;
}else{
newNumbers[positions[h]]=4;
}
},
onSwipe(e) {
newNumbers=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0];
let start=0,differ=0,step=0;
switch(e.direction){
case 'left':
start=0;
differ=1;
step=4;
break;
case 'right':
start=3;
differ=-1;
step=4;
break;
case 'up':
start=0;
differ=4;
step=1;
break;
case 'down':
start=12;
differ=-4;
step=1;
break;
}
let ids;
for (let j=0;j<=3;j++){
ids=this.getIds(start, differ);
let before=null;
let noZeros=0;
for(let k=0;k<=3;k++){
let id=ids[k];
let number=numbers[id];
if (number!=0){
if(number==before){
this.score+=number*2;
newNumbers[ids[noZeros-1]]*=2;
before=null;
}else{
newNumbers[ids[noZeros]]=number;
before=number;
noZeros+=1;
}
}
}
start+=step;
}
if(this.best>=this.score){
this.best=this.best;
}else{
this.best=this.score;}
if(numbers.toString()!=newNumbers.toString()){
this.supplyNumber();
this.updateView();
newNumbers=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0];
if(this.isGameOver()==true){this.isShow=true;}
}
},
getIds(start, differ){
let ids=[];
for (let z=4;z>=1;z--){
ids.push(start);
start+=differ;
}
return ids;
},
updateView() {
for (let x=0;x<=15;x++) {
if (newNumbers[x]!=0){
this.tiles[x].text=newNumbers[x].toString();
}else{
this.tiles[x].text="";
}
}
numbers=newNumbers;
},
isGameOver(){
if(this.isGridsFull()==true && this.isGridsNotMergeable()==true) return true;
},
isGridsFull(){
if(numbers.indexOf(0)==-1){return true;}
},
isGridsNotMergeable(){
for(let l=0;l<=15;l++){
if(l<=14){
if(numbers[l]==numbers[l+1]&&(l+1)%4!=0) return false;
}
if(l<=11){
if(numbers[l]==numbers[l+4]) return false;
}
}
return true;
},
}