339 lines
9.3 KiB
JavaScript
Executable File
339 lines
9.3 KiB
JavaScript
Executable File
var c = document.getElementById("piano");
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var context = c.getContext("2d");
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var b = document.getElementById("background");
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var context_back = b.getContext("2d");
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var a = document.getElementById("score_bar");
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var context_score = a.getContext("2d");
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var numOfTiles = 5;
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var myScore = 0;
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var eachState = [false,false,false,false,false];
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var myTiles = [];
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var intervalTmp;
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var geneTmp;
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var gameSpeed = 1; // 游戏速度倍数，初始为1倍
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var baseInterval = 5; // 基础更新间隔（毫秒）
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var baseGenerateInterval = 600; // 基础生成间隔（毫秒）
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paintWindow();
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paintScoreBar();
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// 添加全局鼠标和触摸事件监听
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c.addEventListener('click', function(e) {
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handleClick(e);
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});
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c.addEventListener('touchstart', function(e) {
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e.preventDefault();
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handleTouch(e);
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});
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document.getElementById('start_btn').addEventListener('click',function(e){
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var content = document.getElementById('start_btn');
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if(content.innerHTML == "开始游戏" || content.innerHTML == "继续游戏"){
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startGame();
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}
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else{
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pauseGame();
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}
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});
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// 重新开始按钮事件
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document.getElementById('restart-btn').addEventListener('click', function(){
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restartGame();
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});
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function startGame(){
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var content = document.getElementById('start_btn');
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updateGameSpeed();
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document.getElementById('music').play();
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content.innerHTML = "暂停游戏";
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content.className = "game-btn pause-btn";
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}
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// 更新游戏速度
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function updateGameSpeed() {
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// 清除现有定时器
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if (intervalTmp) clearInterval(intervalTmp);
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if (geneTmp) clearInterval(geneTmp);
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// 保持正常1倍速度，不加速
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gameSpeed = 1;
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// 设置新的定时器，优化性能
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intervalTmp = setInterval(upDate, Math.max(baseInterval / gameSpeed, 3));
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geneTmp = setInterval(geneBlock, Math.max(baseGenerateInterval / gameSpeed, 200));
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}
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function pauseGame(){
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var content = document.getElementById('start_btn');
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document.getElementById('music').pause();
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window.clearInterval(intervalTmp);
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window.clearInterval(geneTmp);
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content.innerHTML = "继续游戏";
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content.className = "game-btn start-btn";
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}
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function gameOver(){
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document.getElementById('music').pause();
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window.clearInterval(intervalTmp);
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window.clearInterval(geneTmp);
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// 显示最终得分和达到的最高速度
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document.getElementById('final-score-value').innerHTML = myScore;
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document.getElementById('final-speed-value').innerHTML = gameSpeed.toFixed(1);
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// 显示游戏结束弹窗
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document.getElementById('game-over-modal').style.display = 'flex';
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}
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function restartGame(){
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// 重置游戏状态
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myScore = 0;
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gameSpeed = 1; // 重置游戏速度
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eachState = [false,false,false,false,false];
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myTiles = [];
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// 清空画布
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context.clearRect(0,0,300,600);
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context_back.clearRect(0,0,300,600);
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context_score.clearRect(0,0,300,60);
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// 重新绘制背景
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paintWindow();
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paintScoreBar();
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// 隐藏弹窗
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document.getElementById('game-over-modal').style.display = 'none';
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// 重置按钮状态
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var content = document.getElementById('start_btn');
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content.innerHTML = "开始游戏";
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content.className = "game-btn start-btn";
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}
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function paintScoreBar(){
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// 清空画布
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context_score.clearRect(0,0,300,60);
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// 绘制黑色背景
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context_score.fillStyle = "#333";
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context_score.fillRect(0,0,300,60);
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// 更新HTML显示
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document.getElementById('score-value').textContent = myScore;
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document.getElementById('speed-value').textContent = gameSpeed.toFixed(1);
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}
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function geneBlock(){
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var myRand = Math.floor(Math.random()*numOfTiles);
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var i;
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var flag = true;
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for( i = 0; i < numOfTiles; ++i){
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if(!eachState[i]){
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flag = false;
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}
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}
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if(flag)return;//if mytiles array didn't have false element, then return
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while(eachState[myRand])
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myRand = Math.floor(Math.random()*numOfTiles);
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myTiles[myRand] = new Block(myRand);
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}
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function paintWindow(){
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// 清空背景
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context_back.clearRect(0,0,300,600);
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// 绘制白色背景
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context_back.fillStyle = "white";
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context_back.fillRect(0,0,300,600);
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// 绘制分隔线
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context_back.strokeStyle = "#ddd";
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context_back.lineWidth = 2;
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// 垂直分隔线
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context_back.beginPath();
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context_back.moveTo(75,0);
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context_back.lineTo(75,600);
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context_back.stroke();
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context_back.beginPath();
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context_back.moveTo(150,0);
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context_back.lineTo(150,600);
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context_back.stroke();
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context_back.beginPath();
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context_back.moveTo(225,0);
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context_back.lineTo(225,600);
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context_back.stroke();
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// 可点击区域警戒线
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context_back.strokeStyle = "#ff4444";
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context_back.lineWidth = 3;
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context_back.beginPath();
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context_back.moveTo(0,250);
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context_back.lineTo(300,250);
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context_back.stroke();
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// 底部失败线
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context_back.strokeStyle = "#ff4444";
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context_back.lineWidth = 3;
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context_back.beginPath();
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context_back.moveTo(0,470);
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context_back.lineTo(300,470);
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context_back.stroke();
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}
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function Block(index){
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if(!eachState[index])
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eachState[index] = true;
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this.index = index;
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this.appearPos = Math.floor(Math.random()*4);
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this.width = 75;
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this.height = 120;
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this.color = "black";
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switch(this.appearPos){
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case 0:
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this.x = 0;
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this.y = -120;
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break;
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case 1:
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this.x = 75;
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this.y = -120;
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break;
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case 2:
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this.x = 150;
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this.y = -120;
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break;
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case 3:
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this.x = 225;
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this.y = -120;
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break;
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}
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context.fillStyle = this.color;
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context.fillRect(this.x,this.y,this.width,this.height);
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this.live = true;
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window.addEventListener('keydown',function(e){
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myTiles[index].keyCode = e.keyCode;
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});
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window.addEventListener('keyup',function(e){
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myTiles[index].keyCode = false;
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});
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}
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function move(index){
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if(myTiles[index].live){
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myTiles[index].y += Math.ceil(gameSpeed);
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// 绘制逻辑已移到upDate函数中，避免重复绘制
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}
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}
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function afterRight(index){
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myScore++;
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// 清除方块（在upDate中统一处理绘制）
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myTiles[index].live = false;
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eachState[index] = false;
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// 立即更新得分显示
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paintScoreBar();
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// 每次得分都更新游戏速度，实现平滑渐进加速
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updateGameSpeed();
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}
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// 处理鼠标点击事件
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function handleClick(e) {
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var rect = c.getBoundingClientRect();
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var x = e.clientX - rect.left;
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var y = e.clientY - rect.top;
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checkHit(x, y);
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}
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// 处理触摸事件
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function handleTouch(e) {
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var rect = c.getBoundingClientRect();
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var touch = e.touches[0];
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var x = touch.clientX - rect.left;
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var y = touch.clientY - rect.top;
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checkHit(x, y);
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}
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// 检查点击/触摸是否命中方块
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function checkHit(x, y) {
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// 检查是否点击到黑色方块
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for (var i = 0; i < numOfTiles; i++) {
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if (eachState[i] && myTiles[i].live) {
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// 检查点击位置是否在方块范围内
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if (x >= myTiles[i].x && x <= myTiles[i].x + 75 &&
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y >= myTiles[i].y && y <= myTiles[i].y + 120) {
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// 检查方块是否在可点击区域（提高到130像素以上）
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if (myTiles[i].y + 120 > 130) {
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afterRight(i);
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return true;
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}
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}
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}
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}
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// 如果没有点击到任何黑色方块，且点击位置在游戏区域内，则游戏结束
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if (y > 130 && y < 600) {
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gameOver();
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return false;
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}
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return false;
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}
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function upDate(){//check keyCode whether correct
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var i;
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// 清空整个游戏区域，避免重叠
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context.clearRect(0, 0, 300, 600);
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// 移动并重绘所有活跃的方块
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for(i = 0; i < numOfTiles; ++i){
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if(eachState[i]){
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myTiles[i].y += Math.ceil(gameSpeed); // 使用整数移动，避免模糊
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context.fillStyle = "black";
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context.fillRect(myTiles[i].x, myTiles[i].y, 75, 120);
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}
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}
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for(i = 0; i < numOfTiles; ++i){
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if( eachState[i] ){
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if(myTiles[i].y < 470 && myTiles[i].y >350){
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switch(myTiles[i].keyCode){
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case 65: //A
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if(myTiles[i].x == 0)
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afterRight(i);
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break;
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case 83: //S
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if(myTiles[i].x == 75)
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afterRight(i);
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break;
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case 68: //D
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if(myTiles[i].x == 150)
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afterRight(i);
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break;
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case 70: //F
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if(myTiles[i].x == 225)
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afterRight(i);
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break;
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}
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}
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if(myTiles[i].y > 470){
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// 方块到达底部，游戏结束
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myTiles[i].live = false;
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eachState[i] = false;
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gameOver();
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return; // 立即退出，避免继续处理
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}
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}
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else{//not alive
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}
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}
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}
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