Mine sweep

Elakkan Perangkap

Kilk pada mana-mana petak dan kemudian mulakan permainan. Untuk memilih kotak gunakan butang yang disediakan pada sekeliling kotak. Butang pada sebelah kiri dan bawah adalah untuk memandakan kawasan yang dijangka ada bom. Untuk membuka kotak gunakan butang sebelah kanan dan atas.

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1.Copy dalam <head>

<!-- hide code from old browsers

var BOMB = " * ";

var NOBOMB = "";

var MARKED = " X ";

var constModul = 0.0;

var constFactor = 0.0;

var constMove = 0.0;

var pseudoRandomNumber = 0.0;

var constXSize = 5;

var constYSize = 5;

var constBombAmnt = 5;

var squaresCleared = 0;

var firstTime=false;

var topValue=-1;

var rightValue=-1;

var bottomValue=-1;

var leftValue=-1;

var array;

var startTime;

var timerID = null;

var timerRunning = false;

//--------------------------------------------------------------------------

function stopClock (){

if(timerRunning)

clearTimeout(timerID);

timerRunning = false;

}

//--------------------------------------------------------------------------

function startClock (){

// Make sure the clock is stopped

stopClock();

startTime = new Date();

showTime();

}

//--------------------------------------------------------------------------

function diffSeconds (t1, t2){

// returns the difference between t1 (hh:mm:ss) and t2 (hh:mm:ss)// in seconds!

return (t2.getHours()*3600 + t2.getMinutes()*60 + t2.getSeconds()) - (t1.getHours()*3600 + t1.getMinutes()*60 + t1.getSeconds());

}

//--------------------------------------------------------------------------

function showTime (){

document.info.time.value = diffSeconds(startTime, new Date());

timerID = setTimeout("showTime()",1000);

timerRunning = true;

}

//--------------------------------------------------------------------------

function initRandom(){

// initialize random number generator

var now = new Date();

var hours = now.getHours();

var minutes = now.getMinutes();

var seconds = now.getSeconds();

constModul = Math.pow(2,48);

constFactor = 513.0

constMove = 29741096258473.0;

pseudoRandomNumber = (hours+minutes*60+seconds*3600);

}

//--------------------------------------------------------------------------

function random(){

// returns the next pseudo-random number [0,1]

pseudoRandomNumber = (constFactor*pseudoRandomNumber+constMove)%constModul;

return (pseudoRandomNumber / constModul);

}

//--------------------------------------------------------------------------

function getArrayAt(x, y, value){

// Access-method of object-type ObjArray

// x,y are zero-based

return this[y*this.xSize+x];

}

//--------------------------------------------------------------------------

function putArrayAt(x, y, value){

// Access-method of object-type ObjArray

// x,y are zero-based

this[y*this.xSize+x] = value;

}

//--------------------------------------------------------------------------

function ObjArray(xSize, ySize){

for (i=0; i<xSize*ySize; i++)

this[i] = "";

this.xSize = xSize;

this.ySize = ySize;

this.getArrayAt = getArrayAt;

//Access-methods

this.putArrayAt = putArrayAt;

}

//--------------------------------------------------------------------------

function putAreaAt(x, y, value)

// sets the value the displayed "text"-field array of pos (x,y)

// x,y are zero-based

{

var posInArea = (constXSize)+y*(constXSize+2)+(x+1);

document.area.elements[posInArea].value = value;

}

//--------------------------------------------------------------------------

function getAreaAt(x, y)

// sets the value the displayed "text"-field array of pos (x,y)

// x,y are zero-based

{

var posInArea = (constXSize)+y*(constXSize+2)+(x+1);

return document.area.elements[posInArea].value;

}

//--------------------------------------------------------------------------

function placeTheBombs(x, y)

// places the bombs in the array, except on position x,y

{

var i, randomXYPos;

array.putArrayAt(x, y, BOMB);

for (i=0; i<constBombAmnt; i++) {

//find a (random) position where there is still no bomb

//calculate bombs x,y position

randomXYPos = random();

randomXYPos = Math.floor(randomXYPos*constXSize*constYSize);

while (array[randomXYPos] == BOMB) {

//calculate bombs x,y position

randomXYPos = random();

randomXYPos = Math.floor(randomXYPos*constXSize*constYSize);

}

array[randomXYPos] = BOMB;

}

array.putArrayAt(x, y, NOBOMB);

}

//--------------------------------------------------------------------------

function calculateBombsAround()

// calculates the amount of bombs that surround each

// square and stores it into the array

{

var x, y, x1, y1, numberOfBombs;

for (x=0; x<constXSize; x++)

for (y=0; y<constYSize; y++){

if (array.getArrayAt(x, y) == BOMB) continue;

numberOfBombs=0;

for(x1=x-1; x1<x+2; x1++)

for(y1=y-1; y1<y+2; y1++)

if((x1>=0) && (y1>=0) && (x1<constXSize) && (y1<constYSize))

if (array.getArrayAt(x1, y1) == BOMB)

numberOfBombs++;

array.putArrayAt(x, y, " "+numberOfBombs+" ");

//putAreaAt(x, y, " "+numberOfBombs+" ");

}

//--------------------------------------------------------------------------

function initArea(){

var randomXYPos;

var numberOfBombs;

var i, x, y;

squaresCleared = 0;

document.info.bombsLeft.value = constBombAmnt;

// init. display

for (x=0; x<constXSize; x++)

for (y=0; y<constYSize; y++)

putAreaAt (x, y, "");

// create area in memory, too

array = new ObjArray(constXSize, constYSize);

firstTime = true;

}

//--------------------------------------------------------------------------

function markSquare(x, y){

bottomValue=-1;

leftValue=-1;

if (getAreaAt(x,y)==MARKED){

putAreaAt(x,y,"");

document.info.bombsLeft.value++;

}

else{

// if the user clicks on a square that has already been opened

if (getAreaAt(x,y)!=NOBOMB){

// warn user and abort

alert("You've already done this square!")

return;

}

putAreaAt(x,y, MARKED);

document.info.bombsLeft.value--;

}

return;

}

//--------------------------------------------------------------------------

function openSquare(x, y){

topValue=-1;

rightValue=-1;

squaresCleared++;

// if the user clicks on a square that has already been opened or

// been marked

if (getAreaAt(x,y)!=NOBOMB){

// warn user and abort

alert("You've already done this square!")

return;

}

// prevent user from beeing bombed the first time!

if (firstTime) {

placeTheBombs(x, y);

calculateBombsAround();

firstTime = false;

}

putAreaAt(x,y, squareContents = array.getArrayAt(x,y));

if (squareContents==BOMB){

alert("GAME-OVER, you lost!");

showAll();

}

else{

if (squaresCleared==constXSize*constYSize-constBombAmnt)

{

alert("Congratulations, you made it in "+ document.info.time.value+" seconds!");

showAll();

}}

}

//--------------------------------------------------------------------------

function onButtonClicked(button){

var pos = parseInt (button.value);

if (button.name=="top")

topValue=pos;

if (button.name=="bottom")

bottomValue=pos;

if (button.name=="left")

leftValue=pos;

if (button.name=="right")

rightValue=pos;

if ((bottomValue>=0) && (leftValue>=0))

markSquare (bottomValue, leftValue)

if ((topValue>=0) && (rightValue>=0))

openSquare(topValue, rightValue)

}

//--------------------------------------------------------------------------

function showAll()

// displays the area like it is represented in the array

{

var x,y;

stopClock();

// init. display

for (x=0; x<constXSize; x++)

for (y=0; y<constYSize; y++)

putAreaAt (x, y, array.getArrayAt(x,y));

}

//--------------------------------------------------------------------------

function startNewGame(){

initRandom();

initArea();

startClock();

}

// end hiding from old browsers -->

</SCRIPT>

2.Copy dalam <body>

<FORM name=info><INPUT type="button" value="Start new game" onClick="startNewGame()">Masa
lepas<INPUT type="text" name=time size=7>Bom tinggal<INPUT type="text" name=bombsLeft size=5></FORM><FORM name=area></CENTER>