This article mainly introduces the web game written in JavaScript. All the codes are attached for everyone to view. It implements the web game page. Friends in need can refer to it.
The following is the game interface:
以下为游戏代码：
<html>
<head>
<script language="JavaScript">
<!-- Original: Nick Young () -->
<!-- recompose: Pakchoi () -->
var timerID = null;
var INT = 40;
var loadFLG = 0;
var gameFLG = 0;
var missFLG = 0;
var tim = 0;
var blcol = new Array(5); // block color
var blsta = new Array(40); // block status
var blNO = new Array(40); // block No
var blclr = 0; // clear block
var ballX = 0; // ball data
var ballY = 0;
var ballN = 5;
var ballDX = 0;
var ballDY = 0;
var tmpRL = 193;
var X = 0;
blcol[0] = "blue";
blcol[1] = "yello";
blcol[2] = "red";
blcol[3] = "purple";
blcol[4] = "#FF0000";
blcol[5] = "black";
function mainF() {
clearTimeout(timerID);
tim = tim + 1;
with (Math) {
tmptim = floor(tim / 10)};
document.forms[0].TM.value = tmptim;
ballX = ballX + ballDX;
ballY = ballY + ballDY;
outCHK();
blkCHK();
ball.style.posTop = ballY;
ball.style.posLeft = ballX;
racket.style.posLeft = tmpRL;
if (gameFLG == 01) {
timerID = setTimeout("mainF()", INT);
}
}
function initG() {
if (blclr >= 40) {
blclr = 0;
tim = 0;
ballN = 3;
with (Math) {
tmptim = floor(tim / 10);
}
document.forms[0].TM.value = tmptim;
clrmes.style.posTop = -1000;
clrmes.style.posLeft = -1000;
ovrmes.style.posTop = -1000;
ovrmes.style.posLeft = -1000;
for (ib = 0; ib < 5; ib++) {
for (ia = 0; ia < 8; ia++) {
chc(ib * 8 + ia +1, ib);
blsta[ib * 8 + ia] = ib;
}
}
}
document.forms[0].BL.value = ballN;
starter.style.posTop = -1000;
starter.style.posLeft = -1000;
gameFLG = 1;
loadFLG = 1;
ballX = 209;
ballY = 270;
ballDX =- 8;
ballDY =- 8;
tmpRL = 193;
missFLG = 0;
timerID = setTimeout("mainF()", INT);
}
function SUP() {
UP.outerHTML = "<p ID='DN' STYLE='position:absolute'><A HREF='javascript:SDN()'>SPEED DOWN</A></p>";
DN.style.posTop = 170;
DN.style.posLeft = 432;
INT = 40;
}
function SDN() {
DN.outerHTML = "<p ID='UP' STYLE='position:absolute'><A HREF='javascript:SUP()'>SPEED UP</A></p>";
UP.style.posTop = 170;
UP.style.posLeft = 432;
INT = 50;
}
function MouseMv() {
if (loadFLG == 1) {
tmpRL = X - 20;
if (tmpRL < 16) { tmpRL = 16; }
if (tmpRL > 370) { tmpRL = 370; }
}
}
function outCHK() {
if (ballX < 16){ ballX = 32 - ballX; ballDX = -ballDX; }
if (ballX > 401){ ballX = 802 - ballX; ballDX = -ballDX; }
if (ballY < 16){ ballY = 32 - ballY; ballDY = -ballDY; }
if (ballY >= 272) {
if (missFLG == 0) {
tmpX = (ballDX / ballDY) * (272 - ballY) + ballX;
if (tmpX >= tmpRL - 12) {
if (tmpX <= tmpRL + 42) {
ballY = 272; ballDY = -ballDY;
ballX = tmpX;
ballRD = tmpX - tmpRL;
with (Math){ ballDX = 8 * abs(ballDX) / ballDX; }
if (ballRD < -4){ ballDX = -15; }
if (ballRD > 36){ ballDX = 15; }
if (ballRD >= 14){ if (ballRD <= 16) { ballDX = -2; } }
if (ballRD >= 17){ if (ballRD <= 20) { ballDX = 2; } }
if (ballRD >= 0){ if (ballRD <= 4) { ballDX = -4; } }
if (ballRD >= 28){ if (ballRD <= 32) { ballDX = 4; } }
if (ballRD >= -4){ if (ballRD <= -1) { ballDX = -11; } }
if (ballRD >= 33){ if (ballRD <= 36) { ballDX = 11; } }
}
}
if (ballDY > 0){ missFLG = 1; }
}
else {
if (ballY > 290){ missFLG = 0; ballN = ballN - 1; gameEnd(); }
}
}
}
function blkCHK() {
tmpY = ballY + 4;
tmpX = ballX + 4;
if (tmpY >= 48) {
if (tmpY <= 147) {
if (tmpX >= 29) {
if (tmpX <= 396) {
with (Math) {
ia = floor((tmpX - 29) / 46);
ib = floor((tmpY - 48) / 20);
ic = ib * 8 + ia;
}
if (blsta[ic] <= 4) {
tmpbc = blsta[ic] + 1;
blsta[ic] = tmpbc;
chc(ic + 1, tmpbc);
if (tmpbc == 5){ blclr = blclr + 1; }
if (blclr >= 40){ gameEnd(); }
if (ballDX > 0) {
iy=(ballDY / ballDX) * (29 + 46 * ia - tmpX) + tmpY;
if (iy > 48 + 20 * ib + 18) {
tmpY1 = 48 + 20 * ib + 18;
tmpX1 = (ballDX / ballDY) * (48 + 20 * ib + 18 - tmpY) + tmpX;
ballX = tmpX1 - 4;
ballY = tmpY1 - 4;
ballDY = -ballDY;
}
else {
if (iy < 44 + 20 * ib) {
tmpY1 = 48 + 20 * ib;
tmpX1 = (ballDX / ballDY) * (48 + 20 * ib - tmpY) + tmpX;
ballX = tmpX1 - 4;
ballY = tmpY1 - 4;
ballDY = -ballDY;
}
else {
tmpX1 = 29 + 46 * ia;
tmpY1 = (ballDY / ballDX) * (29 + 46 * ia - tmpX) + tmpY;
ballX = tmpX1 - 4;
ballY = tmpY1 - 4;
ballDX = -ballDX;
}
}
}
else {
iy = (ballDY / ballDX) * (29+46 * ia + 44 - tmpX) + tmpY;
if (iy > 48 + 20 * ib + 18) {
tmpY1 = 48 + 20 * ib + 18;
tmpX1 = (ballDX / ballDY) * (48 + 20 * ib + 18 - tmpY) + tmpX;
ballX = tmpX1 - 4;
ballY = tmpY1 - 4;
ballDY = -ballDY;
}
else {
if (iy < 44 + 20 * ib) {
tmpY1 = 48 + 20 * ib;
tmpX1 = (ballDX / ballDY) * (48 + 20 * ib - tmpY) + tmpX;
ballX = tmpX1 - 4;
ballY = tmpY1 - 4;
ballDY = -ballDY;
}
else {
tmpX1 = 29+46 * ia + 44;
tmpY1 = (ballDY / ballDX) * (29 + 46 * ia + 44 - tmpX) + tmpY;
ballX = tmpX1 - 4;
ballY = tmpY1 - 4;
ballDX = -ballDX;
}
}
}
}
}
}
}
}
}
function gameEnd() {
document.forms[0].BL.value = ballN;
gameFLG = 0;
loadFLG = 0;
starter.style.posTop = 200;
starter.style.posLeft = 180;
if (blclr >= 40) {
clrmes.style.posTop = 150;
clrmes.style.posLeft = 160;
}
if (ballN <= 0) {
ovrmes.style.posTop = 150;
ovrmes.style.posLeft = 160;
blclr = 40;
}
}
function onLD() {
bgIE.style.posTop = 16;
bgIE.style.posLeft = 16;
ball.style.posTop = 270;
ball.style.posLeft = 209;
racket.style.posTop = 280;
racket.style.posLeft = 193;
info.style.posTop = 16;
info.style.posLeft = 432;
starter.style.posTop = -1000;
starter.style.posLeft = -1000;
clrmes.style.posTop = -1000;
clrmes.style.posLeft = -1000;
ovrmes.style.posTop = -1000;
ovrmes.style.posLeft = -1000;
DN.style.posTop = 170;
DN.style.posLeft = 432;
for (ib = 0; ib < 5; ib++) {
for (ia = 0; ia < 8; ia++) {
blsta[ib * 8 + ia] = ib;
}
}
starter.style.posTop = 200;
starter.style.posLeft = 180;
}
function chc(bno,bcl) {
tmpbno = ((bno < 10.5) ? "b0" : "b") + (bno-1);
eval(tmpbno).bgColor = blcol[bcl];
}
// End -->
</script>
</head>
<body onLoad="onLD();" onMouseMove='X=event.x;MouseMv();'>
<span id=info style='position:absolute'>
<pre class="brush:php;toolbar:false">
<font style="font-size:24px" color="#000044"><i><b>PONG</b></i></font>
<form>
Ball: <input type=text name=BL size=5 value=5>
Time: <input type=text name=TM size=5 value=0>
</form>