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game.html
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game.html
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<!DOCTYPE html>
<html>
<head>
<script src='/_ah/channel/jsapi'></script>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<script>
/*
TODO:
- Full screen
- Smarter bullet AI - swarm from the back
*/
var gameKey = '{{ game_key }}',
me = '{{ me }}',
playerNum = {{ player_num }},
playerKey = '{{ player_key }}',
username = '{{ username }}',
token = '{{ token }}',
initialMessage = '{{ initial_message }}',
gameLink = '{{ game_link }}';
var shipID = '{{ ship_id }}',
c,
frameCount,
myScore,
scoreMultiplier,
myLives = 10,
numAvailableMines = 0,
mouse = {x:0, y:0},
myShipX,
myShipY,
enemyX,
enemyY,
myShipRadius,
myShipImage = new Image(),
bulletRadius,
myShipSpeedX,
myShipSpeedY,
starDriftSpeedX,
starDriftSpeedY,
colors = ['rgba(255, 51, 51, .75)', 'rgba(51, 255, 51, .75)', 'rgba(204, 204, 255, .9)'],
c_bulletColor = 2,
enemyBullets,
screenW = 800,
screenH = 600,
lastSentX,
lastSentY,
lastSentRadius,
myMines,
enemyMines = new Array(),
explosions = new Array(),
dt_refresh = 35, //35
powersArray,
keyboardMode = true,
SHIP_START_RADIUS = 10,
MAX_SHIP_SPEED = 8,
MAX_SHIP_RADIUS = 65,
MAX_BULLETS = 20
last = (new Date()).getTime()
;
var state = {
gameKey: '{{ game_key }}',
playerKey: '{{ player_key }}',
me: '{{ me }}',
lastMineSetTime: new Date().getTime() - 1000
};
var peerState = {};
openChannel = function() {
var channel = new goog.appengine.Channel(token);
var handler = {
'onopen': onOpened,
'onmessage': onMessage,
'onerror': onError,
'onclose': onClose
};
var socket = channel.open(handler);
socket.onopen = onOpened;
socket.onmessage = onMessage;
};
sendMessage = function(path, opt_param, responseFunction) {
path += '?gamekey=' + state.gameKey;
path += '&playerKey='+ state.playerKey;
path += "&playerNum="+ playerNum;
if (opt_param) {
path += '&' + opt_param;
}
var xhr = new XMLHttpRequest();
if (typeof(responseFunction) == 'function') {
xhr.onreadystatechange = function() {
if (xhr.readyState == 4) responseFunction(xhr.responseText);
};
}
xhr.open('POST', path, true);
xhr.send();
};
onOpened = function() {
sendMessage('/opened');
};
onError = function() {
console.log("Channel error");
};
onClose = function() {
console.log("Channel close");
};
onMessage = function(m) {
// Incoming message
//
newState = JSON.parse(m.data);
if (newState.peer != null) {
if (newState.peer == 'joined') {
$('#gameLink').css({ color: 'green' });
} else if (newState.peer == 'closed') {
$('#gameLink').css({ color: 'red' });
}
} else if (newState.mine != null) {
drawMine(newState.x, newState.y, true, true);
enemyMines.push(newState);
} else if (newState.hitMine != null) {
var mineIndex = newState.mineIndex;
if (myMines[mineIndex])
explosion(myMines[mineIndex].x, myMines[mineIndex].y);
// Replace mine object with an empty hash.
// We do this so a mineIndex for this array will always point to the same location in the array.
myMines.splice(mineIndex, 1, {});
} else {
if (playerNum == 1) {
peerState.shipX = newState.user2X;
peerState.shipY = newState.user2Y;
peerState.shipRadius = newState.user2radius;
} else if (playerNum == 2) {
peerState.shipX = newState.user1X;
peerState.shipY = newState.user1Y;
peerState.shipRadius = newState.user1radius;
}
}
updateState();
};
updateState = function() {
//console.log("Updated state:");
//console.log("\t peerState.shipX:"+ peerState.shipX);
//console.log("\t peerState.shipY:"+ peerState.shipY);
//console.log("\t peerState.shipRadius:"+ peerState.shipRadius);
};
function init() {
frameCount = 0;
myScore = 0;
scoreMultiplier = 1;
myShipX = 10;
myShipY = 10;
myShipImage.src = '/ship-blue.gif';
enemyX = 50;
enemyY = 50;
myShipRadius = SHIP_START_RADIUS;
bulletRadius = 5;
myShipSpeedX = 0;
myShipSpeedY = 0;
enemyBullets = [];
powersArray = new Array();
myMines = new Array();
numAvailableMines = 4;
starDriftSpeedX = 0.5;
starDriftSpeedY = 0.5;
$('#score').html(myScore);
$('#lives').html(myLives);
$('#numMines').html(numAvailableMines);
$('#powers').html(''); // Clear all existing powers
}
$(function() {
c = $('#screen')[0].getContext('2d');
openChannel();
init();
setInterval(function() {
// Only send update if our position hasn't changed.
if (lastSentX != myShipX || lastSentY != myShipY || lastSentRadius != myShipRadius) {
sendMessage('/move', 'x='+ myShipX +'&y='+ myShipY +'&radius='+ myShipRadius);
lastSentX = myShipX;
lastSentY = myShipY;
lastSentRadius = myShipRadius;
}
}, 1000);
return setInterval(run, dt_refresh);
});
function run() {
trace();
moveShip();
draw();
shootBullets();
frameCount++;
return;
}
function moveShip() {
var oldX = myShipX, oldY = myShipY;
if (keyboardMode) {
myShipX += myShipSpeedX;
myShipY += myShipSpeedY;
} else { // Mouse mode
/* No agility:
Ship moves to the average( average( average( shipLocation, mouseLocation ) ) )
Agility:
Ship moves to the average( average( shipLocation, mouseLocation ) )
Ultra-agility:
Ship moves to the average( shipLocation, mouseLocation )
*/
var mouseX = mouse.x - parseInt(myShipRadius/2);
var mouseY = mouse.y - parseInt(myShipRadius/2);
if (powersArray['ultra-agility']) {
myShipX = (myShipX + mouseX) / 2 - 10 + myShipRadius/4;
myShipY = (myShipY + mouseY) / 2 - 20 + myShipRadius/4;
} else if (powersArray['agility']) {
myShipX = ((myShipX + mouseX) / 4 + myShipX/2) + myShipRadius/5 - 7;
myShipY = ((myShipY + mouseY) / 4 + myShipY/2) + myShipRadius/5 - 12;
} else {
myShipX = ((myShipX + mouseX) / 8 + myShipX/4) + myShipX/2 + myShipRadius/10 - 3;
myShipY = ((myShipY + mouseY) / 8 + myShipY/4) + myShipY/2 + myShipRadius/11 - 5;
}
myShipX = Math.floor(myShipX);
myShipY = Math.floor(myShipY);
}
// Keep ship within screen
if (myShipX > screenW) {
myShipX = screenW;
myShipSpeedX = 0;
}
if (myShipY > screenH) {
myShipY = screenH;
myShipSpeedY = 0;
}
if (myShipX < 0) {
myShipX = 0;
myShipSpeedX = 0;
}
if (myShipY < 0) {
myShipY = 0;
myShipSpeedY = 0;
}
}
function trace() {
$('#mouseX').html(mouse.x);
$('#mouseY').html(mouse.y);
$('#shipX').html(myShipX);
$('#shipY').html(myShipY);
$('#shipSpeedX').html(myShipSpeedX);
$('#shipSpeedY').html(myShipSpeedY);
$('#numEnemyBullets').html(enemyBullets.length);
}
$(document).mousemove(
function(e){ mouse = getCursorPosition(e); }
);
$(document).keypress(
function(evt) {
var speedIncrement = 8;
evt = (evt) ? evt : ((window.event) ? event : null);
if (evt) {
var keyCode = evt.keyCode || evt.which;
switch (keyCode) {
case 37:
myShipSpeedX -= speedIncrement;
break;
case 38:
myShipSpeedY -= speedIncrement;
break;
case 39:
myShipSpeedX += speedIncrement;
break;
case 40:
myShipSpeedY += speedIncrement;
break;
case 107: // k
$('#modeSelector').click();
break;
case 112: // p
pause();
break;
}
if (myShipSpeedX > MAX_SHIP_SPEED)
myShipSpeedX = MAX_SHIP_SPEED;
if (myShipSpeedY > MAX_SHIP_SPEED)
myShipSpeedY = MAX_SHIP_SPEED;
if (myShipSpeedX < 0-MAX_SHIP_SPEED)
myShipSpeedX = 0-MAX_SHIP_SPEED;
if (myShipSpeedY < 0-MAX_SHIP_SPEED)
myShipSpeedY = 0-MAX_SHIP_SPEED;
evt.preventDefault();
}
}
);
function draw() {
c.clearRect(0, 0, screenW, screenH);
drawBackground();
draw_ship(myShipX, myShipY, 0, myShipRadius, true); // Me
draw_ship(enemyX, enemyY, 1, 10, false); // Enemy
if (peerState.shipX != null && peerState.shipY != null) {
var peerRadius = peerState.shipRadius || 10;
draw_ship(parseInt(peerState.shipX), parseInt(peerState.shipY), 1, peerRadius, false); // Peer
}
drawMines();
drawExplosions();
advanceBullets();
}
function drawMines() {
$.each(myMines, function(key, value) {
//$('#mineList').append($('<div>'+ key +' ('+ value.x +', '+ value.y +') - '+ value.solid +'</div>'));
if (value.x != null && value.y != null)
drawMine(value.x, value.y, value.solid, false);
});
$.each(enemyMines, function(key, value) {
if (value) {
drawMine(value.x, value.y, true, true);
detectMineCollision(key);
}
});
}
function detectMineCollision(index) {
var mine = enemyMines[index];
if (typeof(mine) == 'undefined')
return false;
if (bulletHit(mine)) {
flashScreen();
if (!growShip()) {
reset();
decrementLives();
}
enemyMines.splice(index, 1);
sendMessage('/hitMine', 'index='+ mine.remoteIndex);
}
}
function drawExplosions() {
$.each(explosions, function(key, value) {
//if
});
}
function advanceBullets() {
var seekOffset = (powersArray['radar-jammer']) ? 1.5 * myShipRadius : 0;
for (var i=0; i < enemyBullets.length; i++) {
c.fillStyle = enemyBullets[i].color; //colors[c_bulletColor];
c.beginPath();
c.arc(enemyBullets[i].x, enemyBullets[i].y, bulletRadius, 0, Math.PI*2, true);
c.closePath();
c.fill();
switch (enemyBullets[i].intelligence) {
case 0: // Simply flies straight
enemyBullets[i].x += enemyBullets[i].speed * enemyBullets[i].initialX;
enemyBullets[i].y += enemyBullets[i].speed * enemyBullets[i].initialY;
break;
case 1: // Seeks my ship
if (Math.abs(enemyBullets[i].x - myShipX + seekOffset) > 10 && enemyBullets[i].x < myShipX)
enemyBullets[i].x += enemyBullets[i].speed;
else if ((enemyBullets[i].x - myShipX) > 10)
enemyBullets[i].x -= enemyBullets[i].speed;
else
if (enemyBullets[i].y == myShipY)
enemyBullets.splice(i, 1);
if (Math.abs(enemyBullets[i].y - myShipY + seekOffset) > 10 && enemyBullets[i].y < myShipY)
enemyBullets[i].y += enemyBullets[i].speed;
else if (enemyBullets[i].y > myShipY)
enemyBullets[i].y -= enemyBullets[i].speed;
break;
}
detectCollisions(i);
}
return;
}
function detectCollisions(bulletIndex) {
if (typeof(enemyBullets[bulletIndex]) == 'undefined')
return;
var bullet = enemyBullets[bulletIndex];
if (bulletHit(bullet)) {
if (bullet.color == 'red') {
flashScreen();
if (!growShip()) {
decrementLives();
reset();
}
} else if (bullet.color == 'green') {
incrementScore();
incrementMines();
if (!shrinkShip()) {
// growEnemyShip();
}
}
enemyBullets.splice(bulletIndex, 1);
}
return;
}
function bulletHit(bullet) {
var dangerZone = myShipRadius + bulletRadius - 4;
dangerZone = (dangerZone >= 2) ? dangerZone : 2;
return (Math.abs(bullet.x - myShipX) < dangerZone && Math.abs(bullet.y - myShipY) < dangerZone) // Hit
}
function growShip() {
/* Returns true if the ship grew, and false otherwise
*/
if (myShipRadius < MAX_SHIP_RADIUS) {
myShipRadius += 6;
// Change star drift direction, increase speed
starsDriftRight = !Math.round(Math.random()); // Random bool
starsDriftUp = !Math.round(Math.random());
starDriftSpeedX += Math.random() + 1;
starDriftSpeedY += Math.random() + 1;
return true;
} else
return false;
}
function shrinkShip() {
/* Returns true if the ship shrunk, false otherwise
*/
if (myShipRadius > SHIP_START_RADIUS)
myShipRadius -= 2;
starDriftSpeedX -= (starDriftSpeedX > 1) ? Math.random() : 0;
starDriftSpeedY -= (starDriftSpeedY > 1) ? Math.random() : 0;
}
function decrementLives() {
myLives--;
$('#lives').html(myLives);
}
function incrementScore() {
c.fillStyle = '#3C3';
c.fillRect(738, 5, 35, 25);
myScore += 10*scoreMultiplier;
$('#score').html(myScore);
checkPowers();
}
function incrementMines() {
numAvailableMines++;
$('#numMines').html(numAvailableMines);
}
function checkPowers() {
/* Checks score and grants the necessary powers
*/
if (myScore >= 10 && !powersArray['agility'])
grantPower('agility');
if (myScore >= 40 && !powersArray['2x'])
grantPower('2x');
if (myScore >= 100 && !powersArray['radar-jammer'])
grantPower('radar-jammer');
if (myScore >= 130 && !powersArray['3x'])
grantPower('3x');
if (myScore >= 180 && !powersArray['ultra-agility'])
grantPower('ultra-agility');
if (myScore >= 250 && !powersArray['4x'])
grantPower('4x');
}
function grantPower(powerName) {
/* Grants the provided power, returning true if that happened or false if not.
*/
if (powersArray[powerName])
return false;
flashScreen();
powersArray[powerName] = true;
var powerElement = $('<div id="'+ powerName +'Power" class="power">'+ powerName +'</div>');
powerElement.css({
position: 'absolute',
top: screenH/2-20,
left: '-5',
'font-size': '25pt'
}).animate({
left: screenW/2-45
}, 200);
$('#canvasContainer').append(powerElement);
setTimeout(
function() {
powerElement.animate({
top: screenH-15,
left: screenW-40,
'font-size': '12pt'
}, function() {
powerElement.css({
position: 'relative',
top: null,
left: null
});
$('#powers').append(powerElement);
});
}, 1000
);
// Now test to see if we should update the scoreMultiplier
var tempMultiplier, strTemp;
strTemp = powerName.match(/^\d+x$/); // Match 20x, for example
if (strTemp && strTemp[0]) {
tempMultiplier = parseInt(strTemp[0].substring(0, strTemp[0].lastIndexOf('x'))); // Get the number before the x, like 3x
if (tempMultiplier > scoreMultiplier)
scoreMultiplier = tempMultiplier;
}
return;
}
function shootBullets() {;
if (frameCount % 40 == 0) {
var newBullet = {
x: enemyX,
y: enemyY,
speed: Math.random()*2 + 2,
color: (frameCount/40 % 4 == 0) ? 'green' : 'red',
intelligence: Math.floor(Math.random()*2),
initialX: (enemyX <= myShipX) ? 1 : -1,
initialY: (enemyY <= myShipY) ? 1 : -1
};
enemyBullets.push(newBullet);
if (enemyBullets.length > MAX_BULLETS)
enemyBullets.splice(0, 1);
}
}
function draw_ship(x, y, colorIndex, radius, me) {
var redness = Math.floor((radius/MAX_SHIP_RADIUS)*204+51);
var greenness = 255-redness;
c.fillStyle = 'rgb('+ redness +', '+ greenness +', 51)'; colors[colorIndex];
c.strokeStyle = 'white';
c.beginPath();
c.arc(x, y, radius, 0, Math.PI*2, true);
c.closePath();
c.fill();
if (me) {
c.stroke();
}
// if (me) {
// //console.log(myShipImage.)
// c.drawImage(myShipImage, x, y, parseInt(radius*myShipImage.width/myShipImage.height), radius);
// } else {
// c.fillStyle = 'rgb('+ redness +', '+ greenness +', 51)'; //colors[colorIndex];
// c.strokeStyle = 'white';
// c.beginPath();
// c.arc(x, y, radius, 0, Math.PI*2, true);
// c.closePath();
// c.fill();
// c.stroke();
// }
return;
}
function explosion(x, y, radius) {
var color = "#FF8000";
radius = (radius || Math.random()*20+30);
c.fillStyle = color;
c.strokeStyle = '#FF00FF';
c.beginPath();
c.arc(x, y, radius, 0, Math.PI*2, true);
c.closePath();
c.fill();
c.stroke();
return;
}
var numStars = 15,
stars = [],
starsDriftRight = true, starsDriftUp = false;
function drawBackground() {
if (stars.length == 0) // If stars don't exist, make them
for (var i=0; i < numStars; i++)
stars.push({
x: randomX(),
y: randomY(),
r: Math.floor( 2 + Math.abs(4*Math.sin(i)) ),
opacity: Math.random() * 0.8 + 0.1 // Opacity between (0.10, 0.90)
});
else { // If stars exists
for (var i=0; i < numStars; i++) {
c.fillStyle = 'rgba(120, 120, 120, '+ stars[i].opacity +')';
c.beginPath();
c.arc(stars[i].x, stars[i].y, stars[i].r, 0, Math.PI*2, true);
c.closePath();
c.fill();
if (starsDriftRight) {
if (stars[i].x < (screenW + 300))
stars[i].x += starDriftSpeedX;
else
stars[i].x = Math.floor( Math.random()*300 ) - 300; // Anywhere within (-300, 0)
} else { // Drift left
if (stars[i].x > (0 - 300))
stars[i].x -= starDriftSpeedX;
else
stars[i].x = Math.floor( Math.random()*300 ) + screenW; // Within (screenW, screenW+300)
}
if (starsDriftUp) {
if (stars[i].y > (0 - 300))
stars[i].y -= starDriftSpeedY;
else
stars[i].y = Math.floor( Math.random()*300 ) + screenH; // Anywhere between screenH and screenH+300
} else { // Drift down
if (stars[i].y < (screenH + 300))
stars[i].y += starDriftSpeedY;
else
stars[i].y = Math.floor( Math.random()*300 ) - 300; // Anywhere between -300 and 0
}
}
}
}
function randomX() {
// Anywhere within +-300px of the screen
return Math.floor( Math.random()*(screenW+600) ) - 300;
}
function randomY() {
// Anywhere within +-300px of the screen
return Math.floor( Math.random()*(screenH+600) ) - 300;
}
function pause() {
}
function reset() {
init();
}
function flashScreen() {
c.fillStyle = '#FFF';
c.fillRect(0, 0, 800, 600);
}
function getCursorPosition(e) {
e = e || window.event;
var cursor = {x:0, y:0};
if (e.pageX || e.pageY) {
cursor.x = e.pageX;
cursor.y = e.pageY;
}
else {
cursor.x = e.clientX +
(document.documentElement.scrollLeft ||
document.body.scrollLeft) -
document.documentElement.clientLeft;
cursor.y = e.clientY +
(document.documentElement.scrollTop ||
document.body.scrollTop) -
document.documentElement.clientTop;
}
return cursor;
}
$(function() {
if (!window.console) window.console = {};
if (!window.console.log) window.console.log = function() {};
setModeOptions();
$('#modeSelector').click(function() {
setModeOptions();
});
$('#screen').click(function(event) {
setMine(event.pageX, event.pageY);
});
});
function setMine(xPos, yPos) {
var now = new Date().getTime();
if (now - state.lastMineSetTime < 1000) {
return false;
}
if (numAvailableMines <= 0) {
return false;
}
state.lastMineSetTime = now;
var mineIndex = myMines.length;
var cellX = parseInt((xPos-20) / 20) * 20,
cellY = parseInt((yPos-20) / 20) * 20;
myMines.push({
x: cellX,
y: cellY,
solid: false
});
sendMessage('/setMine', 'x='+ cellX +'&y='+ cellY +'&index='+ mineIndex, function(responseText) {
var responseArr = responseText.split(' ', 2);
if (responseArr[1] == '1') {
myMines[mineIndex].solid = true;
numAvailableMines--;
$('#numMines').html(numAvailableMines);
} else {
// Remove mine from list
myMines.splice(mineIndex, 1);
}
});
return true;
}
function drawMine(xPos, yPos, solid, enemy) {
if (enemy == true) {
c.fillStyle = 'rgba(255, 100, 130, 1.0)';
c.strokeStyle = '#777777';
} else {
c.fillStyle = (solid) ? 'rgba(50, 90, 50, 0.5)' : 'rgba(193, 222, 162, 0.2)';
c.strokeStyle = '#777777';
}
c.beginPath();
c.arc(xPos, yPos, 10, 0, Math.PI*2, true);
c.closePath();
c.fill();
c.stroke();
}
function setModeOptions() {
if (keyboardMode) {
$('#keyboardModeIndicator').slideUp();
$('#mouseModeIndicator').slideDown();
keyboardMode = false;
} else {
$('#keyboardModeIndicator').slideDown();
$('#mouseModeIndicator').slideUp();
keyboardMode = true;
}
}
var updater = {
errorSleepTime: 500,
cursor: null,
poll: function() {
var args = {};
if (updater.cursor) args.cursor = updater.cursor;
$.ajax({url: "update", type: "POST", dataType: "text",
data: $.param(args), success: updater.onSuccess,
error: updater.onError});
},
onSuccess: function(response) {
try {
console.log('Response: '+ response);
updater.newMessages(eval("(" + response + ")"));
} catch (e) {
updater.onError();
return;
}
updater.errorSleepTime = 500;
window.setTimeout(updater.poll, 0);
},
newMessages: function(response) {
if (!response.messages) return;
updater.cursor = response.cursor;
var messages = response.messages;
updater.cursor = messages[messages.length - 1].id;
console.log(messages.length, "new messages, cursor:", updater.cursor);
for (var i = 0; i < messages.length; i++) {
//updater.showMessage(messages[i]);
console.log("Display message "+ i)
}
},
onError: function(response) {
updater.errorSleepTime *= 2;
console.log("Poll error; sleeping for", updater.errorSleepTime, "ms");
window.setTimeout(updater.poll, updater.errorSleepTime);
}
}
</script>
<style>
body {
font-family: Tahoma, Arial, sans-serif;
}
#screen {
border: 10px dotted BurlyWood;
float: left;
background-color: black;
}
#canvasContainer {
position: relative;
float: left;
cursor: default;
}
#stats {
position: absolute;
top: 11px;
left: 654px;
height: 75px;
width: 150px;
padding-left: 5px;
border-left: 1px dotted #333;
border-bottom: 1px dotted #333;
font-size: 19pt;
font-family: Times New Roman, serif;
text-shadow: 2px 2px 1px #777;
}
#stats #score, #stats #lives {
display: inline;
color: #999;
}
#powers {
position: absolute;
right: 12px;
bottom: 12px;
color: #FFF;
}
.power {
float: left;
margin-left: 10px;
color: #FFF;
}
#optionsContainer {
float: left;
width: 160px;
margin-left: 10px;
cursor: default;
}
#optionsContainer .indicator {
font-size: 19pt;
font-family: Times New Roman, serif;
text-align: center;
text-shadow: 2px 2px 1px #777;
border: 1px solid #333;
}
#modeSelector {
height: 20px;
background-color: #000;
cursor: pointer;
}
#modeSelector:hover {
background-color: #066;
}
#keyboardModeIndicator {
height: 50px;
background-color: #9FC;
}
#mouseModeIndicator {
height: 50px;
background-color: #9CF;
}
#debug {
font-size: 10pt;
}
.clear { clear: both; }
#copyright {
text-align: center;
}
</style>
</head>
<body>
<div id="gameLink" style="color: red;">
Game link: <a href="{{ game_link }}">{{ game_link }}</a>
</div>
<div id="canvasContainer">
<div id="stats">
SCORE <div id="score"></div>
<br />
LIVES <div id="lives"></div>
</div>
<div id="powers">
</div>
<canvas id="screen" height="600" width="800">
</canvas>
</div>
<div id="optionsContainer">
<div id="keyboardModeIndicator" class="indicator">
KEYBOARD
</div>
<div id="modeSelector">
</div>
<div id="mouseModeIndicator" class="indicator">
MOUSE
</div>
<div id="debug">
Mouse X: <span id="mouseX"></span>,
Mouse Y: <span id="mouseY"></span><br />
Ship X: <span id="shipX"></span>,
Ship Y: <span id="shipY"></span><br />
Ship speed X: <span id="shipSpeedX"></span>,
Ship speed Y: <span id="shipSpeedY"></span><br />
Num. enemy bullets: <span id="numEnemyBullets"></span><br />
</div>
<div id="mineList">
Mines left:
<span id="numMines"></span>
</div>
</div>
<img src="/ship-blue.gif" style="display: none; visibility: hidden;" id="shipOne" />
<img src="/ship-blue.gif" style="display: none; visibility: hidden;" id="shipTwo" />
<div class="clear"></div>
<div id="copyright">
© 2010 Jake Schwartz
</div>
</body>
</html>