JavaScript实现斗地主游戏的核心逻辑与代码解析
本文详细解析使用JavaScript实现斗地主游戏的核心思路,涵盖洗牌、发牌、玩家与电脑出牌逻辑及出牌规则验证四大功能模块。通过具体代码示例展示如何打乱牌序、分配地主牌以及利用函数组合验证出牌合法性,为前端游戏开发提供参考。
本文分享使用JavaScript编写斗地主游戏的实现思路,代码可能存在不足,敬请谅解。

斗地主游戏核心功能概述
斗地主游戏主要包含以下功能:洗牌、发牌、玩家出牌、电脑出牌以及出牌规则的验证。本文未涉及输赢判断,仅实现上述核心功能,接下来将依次介绍各功能的具体实现方式。
洗牌与发牌逻辑实现
1. 洗牌环节:
var pukes=this.manage.pukes;//存放扑克牌的数组
//洗牌
for(var i=;i<pukes.length;i++){
var tmp=pukes[i];
var index=util.random(i,pukes.length);//随机交换两张牌
pukes[i]=pukes[index];
pukes[index]=tmp;
}
2. 发牌环节(简化版默认玩家为地主,电脑为农民):由于洗牌阶段已打乱牌序,发牌仅需通过循环将数组中的元素依次添加到每个玩家实例的字段中即可。
//发牌
var start=;
for(var i=;i<this.manage.pukes.length-;i++) {
if(start==this.manage.players.length){
start=;
}
this.manage.pukes[i].status=true;
this.manage.players[start].pukesLen++;
this.manage.players[start++].pukes.push(this.manage.pukes[i]);
}
for(var i=this.manage.pukes.length-;i<this.manage.pukes.length;i++){
//地主多三张
this.manage.pukes[i].status=true;
this.manage.players[this.manage.curPlayerIndex].pukesLen++;
this.manage.players[this.manage.curPlayerIndex].pukes.push(this.manage.pukes[i]);
}
玩家与电脑出牌机制
3. 玩家出牌环节:此过程分为玩家自己出牌和电脑出牌两个步骤。电脑采用简单的出牌策略,即有牌即可出:
//出牌
if(this.options.playerIndex==this.manage.curPlayerIndex) {
var spks = [],gz=false;
if (this.manage.curMaxPlayerIndex == this.options.playerIndex) {
this.manage.deskPukes = [];
}
if (this.isCompute) {
//电脑自动出牌
var start = ;
var len=this.manage.deskPukes.length||;
while (start < this.pukes.length) {
spks = [];
for (var i = ,j=start; i <len&&j<this.pukes.length; i++) {
//随便选一张 可以出就行
if(this.pukes[j].status) {
spks.push(this.pukes[j++]);
}
}
if(spks.length) {
if (rules.valids(spks, this.manage.deskPukes)) {
gz = true;
break;
}
}
start++;
}
}
else {
//玩家选择出牌
for (var i = ; i < this.pukes.length; i++) {
if (this.pukes[i].selected && this.pukes[i].status) {
spks.push(this.pukes[i]);
}
}
if (rules.valids(spks, this.manage.deskPukes)) {
gz=true;
}
else{
alert("出牌不符合规则!");
}
}
if(gz){
this.manage.curMaxPlayerIndex=this.options.playerIndex;
this.manage.deskPukes = [];
for (var i = ; i < spks.length; i++) {
this.pukesLen--;
this.manage.deskPukes.push(spks[i]);
spks[i].status = false;
}
}
this.manage.renderPukes();
this.manage.renderCurDiscard();
if(this.isCompute||gz) {
this.manage.nextPlayer();
}
}
else{
alert("没轮到你出牌!");
}
出牌规则验证方法
4. 出牌规则验证环节:该功能由多个函数组合而成,通过循环调用这些函数,若遇到返回为的情况,则判定出牌符合规则:
//以下为出牌规则
var rules={
_rules:[
new danzRule(),
new duiRule(),
new sandRule(),
new zandRule(),
new shunzRule(),
new liandRule()
],
valids:function(_pukes,_curPukes){
for(var i=;i<this._rules.length;i++){
if(this._rules[i].valid(_pukes,_curPukes)){
return true;
}
}
return false;
}
};
function danzRule(){
//单张规则
}
danzRule.prototype.valid=function(_pukes,_curPukes){
//校验
var pukes=_pukes;//玩家的牌
var curPukes=_curPukes;//左面的牌
if(pukes&&pukes.length==){
//比较牌面值
if(!curPukes||!curPukes.length){
return true;
}
if(curPukes[].dians==&&pukes[].dians<){
//特殊处理
return false;
}
if(pukes[].dians==&&curPukes[].dians<){
//特殊处理
return true;
}
return pukes[].dians>curPukes[].dians;
}
return false;
}
function duiRule(_pukes,_curPukes){
//两张规则
}
duiRule.prototype.valid=function(_pukes,_curPukes){
//校验
var pukes=_pukes;//玩家的牌
var curPukes=_curPukes;//左面的牌
if(pukes&&pukes.length==){
//比较牌面值
if(pukes[].dians>&&pukes[].dians>){
return true;
}
if(pukes[].dians!=pukes[].dians){
return false;
}
if(!curPukes||!curPukes.length){
return true;
}else {
if(curPukes.length!=){
return false;
}
if (curPukes[].dians > && curPukes[].dians > ) {
return false;
}
if (curPukes[].dians != curPukes[].dians) {
return false;
}
if (curPukes[].dians == ) {
return false;
}
}
if(pukes[].dians==){
return true;
}
return pukes[].dians>curPukes[].dians;
}
return false;
}
function sandRule(){
//三带
}
sandRule.prototype.valid=function(_pukes,_curPukes){
//校验
var pukes=_pukes;//玩家的牌
var curPukes=_curPukes;//左面的牌
if(pukes&&(pukes.length>=)){
//比较牌面值
var books=getBooks(pukes);
if(!valid(books))return false;
if(!curPukes||!curPukes.length)return true;
if(curPukes.length!=books.length)return false;
var books=getBooks(curPukes);
if(!valid(books))return false;
return getSum(books)>getSum(books);
}
return false;
function getSum(books){
var sum=;
for(var i=;i<books.length;i++) {
if(books[i]==){
if(i==)return ;
sum+=i;
}
}
return sum;
}
function valid(books){
//验证三带是否有效
var counts= ,countsd= ,d=true,start=false,startIndex=-;
for(var i=;i<books.length;i++) {
if(start&&books[i]==&&startIndex!=(i-)){
return false;
}else{
startIndex=i;
}
if(books[i]==){
if(!start) {
start = true;
startIndex = i;
}
counts++;
}
if(books[i]==){
d=false;
}
}
for(var i=;i<books.length;i++) {
if(d&&books[i]==){
countsd++;
}
else if(!d&&books[i]==){
countsd++;
}
}
return counts>&&counts==countsd;
}
function getBooks(pukes){
//返回三带的每个点数的个数
var books=[];
for(var i=;i<pukes.length;i++){
if(!books[pukes[i].dians]){
books[pukes[i].dians]=;
}else{
books[pukes[i].dians]++;
}
}
return books;
}
}
function zandRule(){
//炸弹
}
zandRule.prototype.valid=function(_pukes,_curPukes){
var pukes=_pukes;//玩家的牌
var curPukes=_curPukes;//左面的牌
if(pukes&&pukes.length==) {
if(!allEqual(pukes)){
return false;
}
if(!curPukes||(curPukes.length>&&curPukes.length!=)||!allEqual(curPukes)){
return true;
}
else{
if(pukes[].dians==){
return true;
}
if(curPukes[].dians==){
return false;
}
return pukes[].dians>curPukes[].dians;
}
}
return false;
function allEqual(pukes){
if(!pukes||!pukes.length)return false;
var base=pukes[].dians;
for(var i=;i<pukes.length;i++){
if(base!=pukes[i].dians){
return false;
}
}
return true;
}
}
function liandRule(){
//连对
}
liandRule.prototype.valid=function(_pukes,_curPukes) {
var pukes=_pukes;//玩家的牌
var curPukes=_curPukes;//左面的牌
if(pukes&&pukes.length>=) {
if(!verificationCoherence(pukes)){
return false;
}
if(!curPukes||curPukes.length<=){
return true;
}
if(!verificationCoherence(curPukes)){
return false;
}
if(pukes.length!=curPukes.length){
return false;
}
return getSumDians(pukes)>getSumDians(curPukes);
}
return false;
function getSumDians(pukes){
var sum=;
for(var i=;i<pukes.length;i++) {
sum+=pukes[i].dians;
}
return sum;
}
function verificationCoherence(pukes){
//验证连贯性
if(!pukes||!pukes.length)return false;
var books=[];
for(var i=;i<pukes.length;i++){
if(pukes[i].dians==||pukes[i].dians>){
return false;
}
if(!books[pukes[i].dians]){
books[pukes[i].dians]=;
}else{
books[pukes[i].dians]++;
}
if(books[pukes[i].dians]>){
return false;
}
}
var start=false;
for(var i=;i<books.length;i++) {
if(books[i]&&books[i]!=){
return false;
}
if(books[i]==&&!start){
start=true;
}
if(start&&books[i]!=){
return false;
}
}
return true;
}
}
function shunzRule(){
//顺子
}
shunzRule.prototype.valid=function(_pukes,_curPukes){
var pukes=_pukes;//玩家的牌
var curPukes=_curPukes;//左面的牌
if(pukes&&pukes.length>=) {
if(!verificationCoherence(pukes)){
return false;
}
if(!curPukes||curPukes.length<=){
return true;
}
if(!verificationCoherence(curPukes)){
return false;
}
if(pukes.length!=curPukes.length){
return false;
}
return getSumDians(pukes)>getSumDians(curPukes);
}
return false;
function getSumDians(pukes){
var sum=;
for(var i=;i<pukes.length;i++) {
sum+=pukes[i].dians;
}
return sum;
}
function verificationCoherence(pukes){
//验证连贯性
if(!pukes||!pukes.length)return false;
var books=[];
for(var i=;i<pukes.length;i++){
if(pukes[i].dians==||pukes[i].dians>){
return false;
}
if(!books[pukes[i].dians]){
books[pukes[i].dians]=;
}else{
return false;
}
}
var start=false;
for(var i=;i<books.length;i++) {
if(books[i]==&&!start){
start=true;
}
if(start&&!books[i]){
return false;
}
}
return true;
}
}
以上四个步骤构成了游戏的主要逻辑函数,其他如初始化、事件注册等辅助函数已在源码中添加注释,代码编写尚显粗糙,欢迎指正。
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