如何在HTML中添加保存的高分系統？
[英]How do I add a saved high score system in HTML?
問題描述
這個問題與其他問題不同，我想問的是如何在HTML中添加高分系統，但是要在javascript編輯器中進行。 我搜索了YT，dailymotion，無處不在，甚至是類似的問題。 我想使用本地存儲。 我沒有為保存高分添加任何猜測，因此這只是我的常規代碼而已。
<!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width, initial-scale=1.0"/> <style> canvas { border:7px solid #00aaff; background-color: #00aaff; } </style> </head> <body onload="startGame()"> <br> <button onmousedown="accelerate(-0.2)"onmouseup="accelerate(0.05)"<p style="height:27px;width:815px">Click to Accelerate</button> <div class="resetButton"></div> <button <p style="height:27px;width:815px"<type="button"onclick="alert('Owner: Landon Sturtevant')">Credits</button> <button <p style="height:27px;width:815px"<type="button"onclick="alert('Click OK to Continue')">Pause</button> <button <p style="height:27px;width:815px"<type="button"onclick="alert('High Score is ' + highScore());">HighScore</button> <script> function highScore(score) { var saved = 0; try { saved = parseFloat(localStorage.highScore); } catch (e) { saved = 0; } if (!(typeof score === 'undefined')) { saved = score; localStorage.highScore = '' + score; } if (isNaN(saved)) { saved = 0; localStorage.highScore = '0'; } return saved; } var myGamePiece; var myBackground; var myObstacles = []; var myScore; var gameSpeed = 1; function startGame() { myBackground = new component(800, 380,"http://static.giantbomb.com/uploads/original/29/297846/2789895-cool+space+backgrounds+desktop+hd+wallpaper.jpg", 0, 0, "image"); myGamePiece = new component(50, 50, "http://images.tourismholdings.com/public/2016/02/56bd3c714ecc6.png", 35, 200, "image"); myScore = new component("30px", "Algerian", "turquoise", 15, 30, "text"); myGameArea.start(); } var myGameArea = { canvas : document.createElement("canvas"), start : function() { this.canvas.width = 800; this.canvas.height = 290; this.context = this.canvas.getContext("2d"); document.body.insertBefore(this.canvas, document.body.childNodes[0]); this.frameNo = 0; this.interval = setInterval(updateGameArea, 20); }, clear : function() { this.context.clearRect(0, 0, this.canvas.width, this.canvas.height); }, stop : function() { clearInterval(this.interval); } } function component(width, height, color, x, y, type) { if (type == "image") { this.image = new Image(); this.image.src = color; } this.type = type; this.width = width; this.height = height; this.speedX = 0; this.speedY = 0; this.gravity = 0.05; this.gravitySpeed = 0; this.x = x; this.y = y; this.update = function() { ctx = myGameArea.context; if (type == "image") { ctx.drawImage(this.image, this.x, this.y, this.width, this.height); } else if (this.type == "text") { ctx.font = this.width + " " + this.height; ctx.fillStyle = color; ctx.fillText(this.text, this.x, this.y); } } this.newPos = function() { this.gravitySpeed += this.gravity; this.x += this.speedX; this.y += this.speedY + this.gravitySpeed; this.hitBottom(); } this.hitBottom = function() { var rockbottom = myGameArea.canvas.height - this.height; if (this.y > rockbottom) { this.y = rockbottom; } } this.crashWith = function(otherobj) { var myleft = this.x; var myright = this.x + (this.width); var mytop = this.y; var mybottom = this.y + (this.height); var otherleft = otherobj.x; var otherright = otherobj.x + (otherobj.width); var othertop = otherobj.y; var otherbottom = otherobj.y + (otherobj.height); var crash = true; if ((mybottom < othertop) || (mytop > otherbottom) || (myright < otherleft) || (myleft > otherright)) { crash = false; } return crash; } } function updateGameArea() { var x, height, gap, minHeight, maxHeight, minGap, maxGap; for (i = 0; i < myObstacles.length; i += 1) { if (myGamePiece.crashWith(myObstacles[i])) { myGameArea.stop() document.getElementsByClassName("resetButton")[0].innerHTML='<button onclick="location.reload();"<p style="height:27px;width:815px">Restart Game</button>'; return; } } myGameArea.clear(); myGameArea.frameNo += 1; if (myGameArea.frameNo == 1 || everyinterval(150)) { x = myGameArea.canvas.width; minHeight = 20; maxHeight = 200; height = Math.floor(Math.random()*(maxHeight-minHeight+1)+minHeight); minGap = 150; maxGap = 250; gap = Math.floor(Math.random()*(maxGap-minGap+1)+minGap); myObstacles.push(new component(15, height, "https://orig00.deviantart.net/bb11/f/2014/127/f/e/hexagon_wallpaper___version_3_by_designedby_jack-d7hh9xo.png", x, 0, "image")); myObstacles.push(new component(15, height, "https://orig00.deviantart.net/bb11/f/2014/127/f/e/hexagon_wallpaper___version_3_by_designedby_jack-d7hh9xo.png", x, height + gap, "image")); gameSpeed = gameSpeed - 1; } myBackground.newPos(); myBackground.update(); for (i = 0; i < myObstacles.length; i += 1) { myObstacles[i].x += gameSpeed; myObstacles[i].update(); } myScore.text="Space Run SCORE: " + myGameArea.frameNo; myScore.update(); myGamePiece.newPos(); myGamePiece.update(); } function everyinterval(n) { if ((myGameArea.frameNo / n) % 1 == 0) {return true;} return false; } function moveup() { myGamePiece.speedY = -1; } function movedown() { myGamePiece.speedY = 1; } function moveleft() { myGamePiece.speedX = -1; } function moveright() { myGamePiece.speedX = 1; } function clearmove() { myGamePiece.speedX = 0; myGamePiece.speedY = 0; } function accelerate(n) { myGamePiece.gravity = n; } </script> </body> </html> <audio <embed loop="true" autoplay="autoplay"> <source src="http://a.tumblr.com/tumblr_m545gt2gbp1r5da8vo1.mp3" /> </audio> <script> </script> </body> </html>
1 個解決方案
解決方案1
1 已采納 2018-05-21 13:15:46
使用localStorage很簡單。 參見https://www.w3schools.com/html/html5_webstorage.asp
function highScore(score) {
var saved = 0;
try { saved = parseFloat(localStorage.highScore); } catch (e) { saved = 0; }
if (!(typeof score === 'undefined')) {
try { score = parseFloat(score); } catch (e) { score = 0; }
if (score>saved) {
saved = score;
localStorage.highScore = '' + score;
}
}
if (isNaN(saved)) {
saved = 0;
localStorage.highScore = '0';
}
return saved;
}
如何將this.score傳輸到高分列表的文本文件？ （AJAX）
[英]How do I transfer this.score to a text file for a high score list? (AJaX)
聲明:本站的技術帖子網頁，遵循CC BY-SA 4.0協議，如果您需要轉載，請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.