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main.js
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var vector = {
_x: 1,
_y: 0,
create: function(x, y)
{
var obj = Object.create(this);
obj.setX(x);
obj.setY(y);
return obj;
},
setX: function(value)
{
this._x = value;
},
getX: function()
{
return this._x;
},
setY: function(value)
{
this._y = value;
},
getY: function()
{
return this._y;
},
setAngle: function(angle)
{
var length = this.getLength();
this._x = Math.cos(angle) * length;
this._y = Math.sin(angle) * length;
},
getAngle: function()
{
return Math.atan2(this._y, this._x);
},
setLength: function(length)
{
var angle = this.getAngle();
this._x = Math.cos(angle) * length;
this._y = Math.sin(angle) * length;
},
getLength: function()
{
return Math.sqrt(this._x * this._x + this._y * this._y);
},
add: function(v2)
{
return vector.create(this._x + v2.getX(), this._y + v2.getY());
},
subtract: function(v2)
{
return vector.create(this._x - v2.getX(), this._y - v2.getY());
},
multiply: function(val)
{
return vector.create(this._x * val, this._y * val);
},
divide: function(val)
{
return vector.create(this._x / val, this._y / val);
},
addTo: function(v2)
{
this._x += v2.getX();
this._y += v2.getY();
},
subtractFrom: function(v2)
{
this._x -= v2.getX();
this._y -= v2.getY();
},
multiplyBy: function(val)
{
this._x *= val;
this._y *= val;
},
divideBy: function(val)
{
this._x /= val;
this._y /= val;
}
};
var utils = {
norm: function(value, min, max)
{
return (value - min) / (max - min);
},
lerp: function(norm, min, max)
{
return (max - min) * norm + min;
},
map: function(value, sourceMin, sourceMax, destMin, destMax)
{
return utils.lerp(utils.norm(value, sourceMin, sourceMax), destMin, destMax);
},
clamp: function(value, min, max)
{
return Math.min(Math.max(value, Math.min(min, max)), Math.max(min, max));
},
angleTo: function(p1, p2)
{
return Math.atan2((p2.y + p2.centerY) - p1.y, (p2.x + p2.centerX) - p1.x);
},
distance: function(p0, p1)
{
var dx = p1.x - p0.x,
dy = p1.y - p0.y;
return Math.sqrt(dx * dx + dy * dy);
},
distanceXY: function(x0, y0, x1, y1)
{
var dx = x1 - x0,
dy = y1 - y0;
return Math.sqrt(dx * dx + dy * dy);
},
circleCollision: function(c0, c1)
{
return utils.distance(c0, c1) <= c0.radius + c1.radius;
},
circlePointCollision: function(x, y, circle)
{
return utils.distanceXY(x, y, circle.x, circle.y) < circle.radius;
},
pointInRect: function(x, y, rect)
{
return utils.inRange(x, rect.x, rect.x + rect.width) &&
utils.inRange(y, rect.y, rect.y + rect.height);
},
inRange: function(value, min, max)
{
return value >= Math.min(min, max) && value <= Math.max(min, max);
},
rangeIntersect: function(min0, max0, min1, max1)
{
return Math.max(min0, max0) >= Math.min(min1, max1) &&
Math.min(min0, max0) <= Math.max(min1, max1);
},
rectIntersect: function(r0, r1)
{
return utils.rangeIntersect(r0.x, r0.x + r0.width, r1.x, r1.x + r1.width) &&
utils.rangeIntersect(r0.y, r0.y + r0.height, r1.y, r1.y + r1.height);
},
degreesToRads: function(degrees)
{
return degrees / 180 * Math.PI;
},
radsToDegrees: function(radians)
{
return radians * 180 / Math.PI;
},
randomRange: function(min, max)
{
return min + Math.random() * (max - min);
},
randomInt: function(min, max)
{
return Math.floor(min + Math.random() * (max - min + 1));
},
roundToPlaces: function(value, places)
{
var mult = Math.pow(10, places);
return Math.round(value * mult) / mult;
},
roundNearest: function(value, nearest)
{
return Math.round(value / nearest) * nearest;
},
quadraticBezier: function(p0, p1, p2, t, pFinal)
{
pFinal = pFinal || {};
pFinal.x = Math.pow(1 - t, 2) * p0.x +
(1 - t) * 2 * t * p1.x +
t * t * p2.x;
pFinal.y = Math.pow(1 - t, 2) * p0.y +
(1 - t) * 2 * t * p1.y +
t * t * p2.y;
return pFinal;
},
cubicBezier: function(p0, p1, p2, p3, t, pFinal)
{
pFinal = pFinal || {};
pFinal.x = Math.pow(1 - t, 3) * p0.x +
Math.pow(1 - t, 2) * 3 * t * p1.x +
(1 - t) * 3 * t * t * p2.x +
t * t * t * p3.x;
pFinal.y = Math.pow(1 - t, 3) * p0.y +
Math.pow(1 - t, 2) * 3 * t * p1.y +
(1 - t) * 3 * t * t * p2.y +
t * t * t * p3.y;
return pFinal;
},
multicurve: function(points, context)
{
var p0, p1, midx, midy;
context.moveTo(points[0].x, points[0].y);
for(var i = 1; i < points.length - 2; i += 1)
{
p0 = points[i];
p1 = points[i + 1];
midx = (p0.x + p1.x) / 2;
midy = (p0.y + p1.y) / 2;
context.quadraticCurveTo(p0.x, p0.y, midx, midy);
}
p0 = points[points.length - 2];
p1 = points[points.length - 1];
context.quadraticCurveTo(p0.x, p0.y, p1.x, p1.y);
}
};
/////////////////////
// GLOBAL VARS
/////////////////////
var doc = document,
win = window,
game = {};
//iOS viewport fix
if(/iPad|iPhone|iPod/.test(navigator.userAgent) && !win.MSStream)
{
doc.querySelector('meta[name=viewport]')
.setAttribute(
'content',
'initial-scale=1.0001, minimum-scale=1.0001, maximum-scale=1.0001, user-scalable=no'
);
}
// Connect to XML
$.ajax({
type: "GET",
url: "game.xml",
contentType: 'text/xml',
dataType: "text",
async: false,
success: function(xmldata) {
$(xmldata).find('data').each(function(){
// SETTINGS
X_Sound = parseInt($(this).find('sound').text());
X_Music = parseInt($(this).find('music').text());
X_Level = parseInt($(this).find('level').text());
X_Lives = parseInt($(this).find('player-lives').text());
X_PlayerSpeed = parseInt($(this).find('player-speed').text());
X_EnemySpeed = parseInt($(this).find('enemy-speed').text());
X_GunSpeed = parseInt($(this).find('reload-time').text());
X_EnGunSpeed = parseInt($(this).find('enreload-time').text());
X_BulletSpeed = parseInt($(this).find('bullet-speed').text());
X_EnBulletSpeed = parseInt($(this).find('enbullet-speed').text());
// INTRO TEXT
X_Title = $(this).find('title').text();
X_Subtitle = $(this).find('subtitle').text();
X_dt_Start = $(this).find('dt-start').text();
X_mb_Start = $(this).find('mb-start').text();
});
},
error: function() {
alert("The XML File could not be processed correctly.");
}
});
game.isMobile = false;
// mobile device detection
if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|ipad|iris|kindle|Android|Silk|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i.test(navigator.userAgent) || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(navigator.userAgent.substr(0,4))) game.isMobile = true;
//====================== Game vars ========================
game.seconds = 0;
game.background = null;
game.score = 0;
game.levelScore = 0;
game.level = X_Level;
game.bossDead = false;
game.bossUp = false;
game.levelComplete = false;
game.levelUpTimer = 0;
game.lives = X_Lives;
game.keys = [];
game.objects = [];
game.bullets = [];
game.playerBulletsPool = [];
game.enemyBulletsPool = [];
game.lootPool = [];
game.enemies = [];
game.minionsPool = [];
game.miniBossPool = [];
game.enemyBasePool = [];
game.bossesPool = [];
game.waves = [];
game.wavesPool = [];
game.explosions = [];
game.explosionsPool = [];
//required = number of objects to be preloaded (and maximum that can be 'alive' at a given time)
game.requiredWaves = 10;
game.requiredMinions = 25;
game.requiredMiniBosses = 15;
game.requiredEnemyBases = 3;
game.requiredBosses = 5;
game.requiredEnemies = game.requiredMinions + game.requiredMiniBosses + game.requiredEnemyBases + game.requiredBosses;
game.requiredPlayerBullets = 70;
game.requiredEnemyBullets = 30;
game.requiredLoot = 10;
game.requiredExplosions = 30;
game.requiredObjects = game.requiredWaves + game.requiredEnemies + game.requiredPlayerBullets + game.requiredEnemyBullets + game.requiredLoot + game.requiredExplosions;
game.doneObjects = 0;
//====================== Delta Time ======================== (!Needs Work! Move calculation outside loop)
game.dt = 1;
game.dtTimer = 0;
game.dtArray = [];
game.timeThen = new Date().getTime();
game.dtTimerSet = false;
//====================== Game state ========================
game.loaded = false;
game.started = false;
game.paused = false;
game.gameOver = false;
game.timer = 0;
game.fadingIn = false;
game.fadingOut = false;
game.faded = true;
game.textFadingIn = false;
game.textFadingOut = false;
game.textFaded = true;
//========================== Display ========================== ! Add below to setGameDimensions() (!Needs Work!)
game.windowWidth = game.isMobile ? doc.documentElement.clientWidth : parseInt($('#gamearea').css("width")); //using parseInt here to remove 'px'
game.windowHeight = doc.documentElement.clientHeight;
game.deltaSpeed = null; // game speed normalizer (mobile first / iPhone 4)
game.fullScreen = false;
//========================== Input ==========================
if (!game.isMobile) doc.getElementById('gamearea').style.cursor = 'crosshair';
game.mouseControls = true;
game.keyboardControls = false;
var inputArea = doc.getElementById("inputarea");
var inputAreaX, inputAreaY;
var mouseIsDown = 0;
var touchInitX = 0;
var touchInitY = 0;
game.canVibrate = "vibrate" in navigator || "mozVibrate" in navigator;
if (game.canVibrate && !("vibrate" in navigator)) navigator.vibrate = navigator.mozVibrate;
//========================== Audio ==========================
//Audio Support
var audioElementSupported = (function(d)
{
var a = d.createElement("audio"),
o = {},
s = "audio\/";
if (typeof a.canPlayType === "function") {
o.supported = Boolean(true);
o.mp3 = a.canPlayType(s + "mpeg");
o.wav = a.canPlayType(s + 'wav; codecs="1"');
o.ogg = a.canPlayType(s + 'ogg; codecs="vorbis"');
o.m4a = a.canPlayType(s + "x-m4a") || a.canPlayType(s + "aac");
o.webm = a.canPlayType(s + 'webm; codecs="vorbis"');
} else {
o.supported = Boolean(0);
}
return o;
})(this.document);
if (audioElementSupported.m4a !== "") //note: audioElementSupported.x is likely to return 'probably' or 'maybe' so you might want to do a thorough check
{
fileFormat = ".m4a";
}
else if (audioElementSupported.ogg !== "")
{
fileFormat = ".ogg";
}
else
{
fileFormat = ".mp3";
}
//====================== Canvases + Responsiveness ============================
game.canvas = doc.getElementById("gameCanvas");
game.context = game.canvas.getContext("2d");
function setGameDimensions()
{
//SETTING CANVASES ATTRIBUTES
//Note: the canvas dimensions need to be set here using attributes due to the nature of the canvas element: it works like an image and using css to set this will stretch it
//get the gameArea and the canvases
var gameArea = $('#gamearea');
var allCanvas = $('canvas');
game.windowWidth = game.isMobile ? doc.documentElement.clientWidth : parseInt($('#gamearea').css("width")); //using parseInt here to remove 'px'
game.windowHeight = doc.documentElement.clientHeight;
game.deltaSpeed = game.windowHeight >= 480 ? game.windowHeight/480 : 1; // game speed normalizer (mobile first / iPhone 4)
game.deltaSpeed = game.windowHeight >= 720 ? 1.5 : game.deltaSpeed; // game speed limiter (high res devices)
allCanvas.attr('width', game.windowWidth);
allCanvas.attr('height', game.windowHeight);
//SETTING GAME DIMENSIONS
// game.isHighRes = game.height > 1080 ? true : false;
game.width = Math.round(game.windowWidth); //needs high res limiter to avoid black game regions on high res devices
game.height = Math.round(game.windowHeight);
//outer borders
game.outerLeft = -Math.round(game.width*0.1);
game.outerRight = Math.round(game.width + game.width*0.1);
game.outerTop = -Math.round(game.height*0.1);
game.outerBottom = Math.round(game.height + game.height*0.1);
//center coords
game.centerX = Math.round(game.width/2);
game.centerY = Math.round(game.height/2);
if (playerShip && typeof playerShip != 'undefined')
{
//re-set playerShip's dimensions/boundaries
// playerShip.bulletspeed = Math.round(X_BulletSpeed*game.height/1000);
playerShip.limitX2 = Math.round(game.width - (playerShip.width*0.5));
playerShip.limitY2 = Math.round(game.height - playerShip.height);
playerShip.accel = game.height*0.0007;
playerShip.speedLimit = Math.round(3*game.dt*game.deltaSpeed);
}
if (typeof gameBackground != 'undefined')
{
gameBackground.resize();
}
// !Add any vars defined on runtime dependant of game dimensions!
//set game bosses' boundaries !Need to give this enemy a name in the array
// this.yStop = Math.round(game.height*0.1);
// this.xBondary = Math.round(game.width - this.size/4);
}
setGameDimensions();
//====================== Local Storage ============================
if ("localStorage" in win && win.localStorage !== null) //checking browser support for local storage
{
//NOTE: localStorage won't accept boolean values! so we need to 'convert' these
//CONTROLS
if (localStorage.keyboardControls === "true")
{
game.mouseControls = false;
game.keyboardControls = true;
}
else
{
game.mouseControls = true;
game.keyboardControls = false;
}
}
sprite = function(image, columns, rows, animationSpeed)
{
this.image = gameGfx.offCtx[image];
this.width = this.image.width;
this.height = this.image.height;
this.totalFrames = columns * rows;
this.frameWidth = this.width / columns;
this.frameHeight = this.height / rows;
this.startFrame = 0;
this.endFrame = this.totalFrames - 1; //will be used to create the animationSequence array
this.frameSpeed = animationSpeed;
this.ctx = game.context;
this.animationSequence = []; // array holding the order of the animation
this.fpr = Math.floor(this.image.width / this.frameWidth);
//create the sequence of frame numbers for the animation
for (this.frameNum = this.startFrame; this.frameNum <= this.endFrame; this.frameNum++)
{
this.animationSequence.push(this.frameNum);
}
};
sprite.prototype.currentFrame = 0;
sprite.prototype.counter = 0;
sprite.prototype.reset = function(image, columns, rows, animationSpeed)
{
this.image = gameGfx.offCtx[image];
this.width = this.image.width;
this.height = this.image.height;
this.totalFrames = columns * rows;
this.frameWidth = this.width / columns;
this.frameHeight = this.height / rows;
this.startFrame = 0;
this.endFrame = this.totalFrames - 1; //will be used to create the animationSequence array
this.frameSpeed = animationSpeed;
this.animationSequence = []; // array holding the order of the animation
this.fpr = Math.floor(this.image.width / this.frameWidth);
this.currentFrame = 0;
this.counter = 0;
// create the sequence of frame numbers for the animation
for (this.frameNum = this.startFrame; this.frameNum <= this.endFrame; this.frameNum++)
{
this.animationSequence.push(this.frameNum);
}
};
//draw full sprite animation method
sprite.prototype.draw = function(x, y)
{
this.ctx.drawImage(
this.image,
this.spriteCol * this.frameWidth, this.spriteRow * this.frameHeight,
this.frameWidth, this.frameHeight,
x, y,
this.frameWidth, this.frameHeight);
// update to the next frame if it is time
if (this.counter == (this.frameSpeed - 1))
{
this.currentFrame = (this.currentFrame + 1) % this.animationSequence.length;
}
// update the counter
this.counter = (this.counter + 1) % this.frameSpeed;
this.spriteRow = Math.floor(this.animationSequence[this.currentFrame] / this.fpr);
this.spriteCol = Math.floor(this.animationSequence[this.currentFrame] % this.fpr);
};
//draw specific sprite frame method
sprite.prototype.drawFrame = function(x, y, frame)
{
this.currentFrame = frame % this.animationSequence.length;
this.spriteRow = Math.floor(this.animationSequence[this.currentFrame] / this.fpr);
this.spriteCol = Math.floor(this.animationSequence[this.currentFrame] % this.fpr);
this.ctx.drawImage(
this.image,
this.spriteCol * this.frameWidth, this.spriteRow * this.frameHeight,
this.frameWidth, this.frameHeight,
x, y,
this.frameWidth, this.frameHeight);
};
background = function()
{
this.image = gameGfx.offCtx['bg_level' + game.level];
//main image properties
this.image.sX = this.image.width <= game.width ? 0 : Math.ceil((this.image.width - game.width)/2);
this.image.sY = this.image.height - game.height;
this.image.sH = game.height;
this.image.sW = game.width;
this.image.dX = 0;
this.image.dY = 0;
this.image.dW = game.width;
this.image.dH = game.height;
//clone image properties
this.image.TsX = this.image.sX;
this.image.TsY = 1;
this.image.TsW = this.image.sW;
this.image.TsH = game.height;
this.image.TdX = 0;
this.image.TdY = 0;
this.image.TdW = this.image.dW;
this.image.TdH = game.height;
this.speed = Math.floor(2*game.dt*game.deltaSpeed);
this.ctx = game.context;
};
background.prototype.resize = function()
{
this.image.sX = this.image.width <= game.width ? 0 : Math.ceil((this.image.width - game.width)/2);
this.image.sW = game.width;
this.image.dW = game.width;
this.image.TsX = this.image.sX;
this.image.TsW = this.image.sW;
this.image.TdW = this.image.dW;
if (background.prototype.update == background.prototype.roll)
{
this.image.sH = game.height;
this.image.dH = game.height;
}
else
{
// rescale trans image properties
this.image.TsH = game.height;
this.image.TdH = game.height;
}
};
background.prototype.drawImage = function()
{
this.ctx.drawImage(this.image, this.image.sX, this.image.sY, this.image.sW, this.image.sH, this.image.dX, this.image.dY, this.image.dW, this.image.dH);
};
background.prototype.drawTransImage = function()
{
this.ctx.drawImage(this.image, this.image.TsX, this.image.TsY, this.image.TsW, this.image.TsH, this.image.TdX, this.image.TdY, this.image.TdW, this.image.TdH);
};
background.prototype.transitionReset = function()
{
this.image.TsY = this.image.sY + 1;
this.image.TsH = this.image.sH;
this.image.TdY = this.image.dY;
this.image.TdH = this.image.dH;
this.image.sY = this.image.height - 1;
this.image.sH = 1;
this.image.dY = 0;
this.image.dH = 1;
background.prototype.update = background.prototype.transition;
};
background.prototype.rollReset = function()
{
this.image.dH = this.image.TdY;
background.prototype.update = background.prototype.roll;
};
background.prototype.roll = function()
{
this.image.sY -= this.speed;
// this.image.sH -= this.speed; //cool light speed effect
if (this.image.sY <= 1)
{
this.transitionReset();
return;
}
this.drawImage();
};
background.prototype.transition = function()
{
this.image.TsH -= this.speed;
this.image.TdY += this.speed;
this.image.TdH -= this.speed;
this.image.sY -= this.speed;
this.image.sH += this.speed;
this.image.dH += this.speed;
if (this.image.TsH <= 0)
{
this.rollReset();
return;
}
this.drawTransImage();
this.drawImage();
};
background.prototype.update = background.prototype.roll;
explosion = function (x, y, speed, direction, size)
{
this.size = size;
this.image = 'explosion_s' + this.size;
this.x = Math.round(x - (this.width*0.2));
this.y = Math.round(y - (this.height*0.2));
this.sprite = new sprite(this.image, 5, 4, 2);
this.width = this.sprite.frameWidth;
this.height = this.sprite.frameHeight;
this.speed = speed;
this.direction = direction;
this.vx = Math.cos(this.direction) * (this.speed);
this.xThrust = Math.round(this.vx); // always goes left/right at the same speed
this.vy = Math.sin(this.direction) * (this.speed);
this.yThrust = Math.round(this.vy); // always goes down at the same speed
};
explosion.prototype.reset = function(x, y, speed, direction, size)
{
this.size = size;
this.image = 'explosion_s' + this.size;
this.x = Math.round(x - (this.width*0.2));
this.y = Math.round(y - (this.height*0.2));
this.speed = speed;
this.direction = direction;
this.vx = Math.cos(this.direction) * (this.speed);
this.xThrust = Math.round(this.vx); // always goes left/right at the same speed
this.vy = Math.sin(this.direction) * (this.speed);
this.yThrust = Math.round(this.vy); // always goes down at the same speed
};
explosion.prototype.playSfx = function()
{
switch(this.size)
{
case 0:
gameSfx.play('hit');
break;
case 4:
gameSfx.play('blast');
break;
default:
gameSfx.play('explosion');
}
};
explosion.prototype.recycle = function()
{
freeExplosion(this);
};
explosion.prototype.checkStatus = function()
{
if (gameSfx.on && this.sprite.currentFrame === this.sprite.startFrame)
{
this.playSfx();
}
if (this.sprite.currentFrame >= this.sprite.endFrame)
{
this.recycle();
}
};
explosion.prototype.setMovement = function()
{
this.x += this.xThrust;
this.y += this.yThrust;
};
explosion.prototype.update = function()
{
this.checkStatus();
this.setMovement();
this.draw();
};
explosion.prototype.draw = function()
{
this.sprite.draw(this.x, this.y);
};
////////////
// Factory
////////////
function getNewExplosion(x, y, speed, direction, size)
{
var e = null;
// recycle
e = game.explosionsPool.pop();
e.reset(x, y, speed, direction, size);
e.sprite.reset(e.image, 5, 4, 2);
game.objects.push(e);
}
function freeExplosion(e)
{
// find the active explosion and remove it
game.objects.splice(game.objects.indexOf(e),1);
// return the explosion back into the pool
game.explosionsPool.push(e);
}
////////////////////////////
// Pre-load game explosions
////////////////////////////
function initExplosions()
{
for (var ex = 1 ; ex <= game.requiredExplosions; ex++)
{
e = new explosion(null, null, null, null, 1, null);
game.explosionsPool.push(e);
game.doneObjects++;
}
}
player = function(hull, fireRate)
{
self = this;
this.fireRate = fireRate;
this.hull = hull;
this.maxHull = hull;
this.sprite = new sprite('player_ship', 5, 3, 5);
this.sprite_i = new sprite('player_ship_i', 5, 3, 5);
this.sprite_s = new sprite('player_shields', 3, 2, 5);
this.width = this.sprite.frameWidth;
this.height = this.sprite.frameHeight;
this.centerX = Math.round(this.width*0.5);
this.centerRightX = Math.round(this.width*0.75);
this.centerLeftX = Math.round(this.width*0.25);
this.centerY = Math.round(this.height*0.5);
this.tipY = Math.round(this.height*0.2);
this.limitX1 = Math.round(-this.width*0.5);
this.limitX2 = Math.round(game.width - this.width*0.5);
this.limitY1 = 0;
this.limitY2 = Math.round(game.height - this.height);
};
player.prototype.x = Math.round(game.width*0.46);
player.prototype.y = Math.round(game.height*0.90);
player.prototype.ctx = game.context;
player.prototype.speed = 0;
player.prototype.speedX = 0;
player.prototype.speedY = 0;
player.prototype.spriteLeftFrames = [0,0,1,2,3,4,4,4,4,4,4]; // the 1st array item is dummy(never called) array size needs to equal max possible speed + 1 (dummy)
player.prototype.spriteRightFrames = [5,5,6,7,8,9,9,9,9,9,9]; // the 1st array item is dummy(never called) array size needs to equal max possible speed + 1 (dummy)
player.prototype.hit = false;
player.prototype.imune = false;
player.prototype.imuneTimer = -5;
player.prototype.imuneTicks = 0;
player.prototype.deadTimer = 0;
player.prototype.lives = X_Lives;
player.prototype.accel = game.height*0.0007;
player.prototype.speedLimit = Math.round(5*game.dt*game.deltaSpeed);
player.prototype.fireTimer = 1;
player.prototype.laserLevel = 1;
player.prototype.missileLevel = 0;
player.prototype.reset = function()
{
this.lives = game.gameOver ? X_Lives : this.lives;
game.gameOver = false;
this.imune = true;
this.imuneTimer = -5;
this.hull = 10;
this.deadTimer = 0;
this.speed = 0;
this.hit = false;
this.spriteFrame = 10;
this.x = Math.round(game.centerX - this.centerX);
this.y = Math.round(game.height - this.height);
this.friction = 0;
this.laserLevel = 1;
this.missileLevel = 0;
gameUI.updateEnergy();
player.prototype.update = player.prototype.aliveUpdate;
};
player.prototype.mouseControls = function()
{
if (mouseIsDown)
{
this.fireGuns();
this.speedX = Math.round(((touchInitX - inputAreaX)*0.1)*game.deltaSpeed);
this.speedY = Math.round(((touchInitY - inputAreaY)*0.1)*game.deltaSpeed);
//this needs to come after movement vars above because we redefine this.speedX here
this.speedX = this.speedX < this.speedLimit ? this.speedX : this.speedLimit;
this.speedY = this.speedY < this.speedLimit ? this.speedY : this.speedLimit;
this.speedX = this.speedX > -this.speedLimit ? this.speedX : -this.speedLimit;
this.speedY = this.speedY > -this.speedLimit ? this.speedY : -this.speedLimit;
}
else
{
if (this.speedX !== 0)
{
this.speedX = this.speedX > 0 ? Math.floor(this.speedX - this.accel) : Math.ceil(this.speedX + this.accel); // !Should be decel!*
}
if (this.speedY !== 0)
{
this.speedY = this.speedY > 0 ? Math.floor(this.speedY - this.accel) : Math.ceil(this.speedY + this.accel); // !Should be decel!*
}
}
};
player.prototype.keyboardControls = function() // !accel/speedLimit needs tweaking!*
{
if (game.keys[32])
{
this.fireGuns();
}
if ((game.keys[37] || game.keys[39] || game.keys[38] || game.keys[40]))
{
if(game.keys[37]) //left
{
this.speedX = this.speedX < this.speedLimit ? Math.round(this.speedX + this.accel) : Math.round(this.speedLimit);
}
if(game.keys[39]) //right
{
this.speedX = this.speedX > -this.speedLimit ? Math.round(this.speedX - this.accel) : Math.round(-this.speedLimit);
}
if(game.keys[38]) //up
{
this.speedY = this.speedY < this.speedLimit ? Math.round(this.speedY + this.accel) : Math.round(this.speedLimit);
}
if(game.keys[40]) //down
{
this.speedY = this.speedY > -this.speedLimit ? Math.round(this.speedY - this.accel) : Math.round(-this.speedLimit);
}
}
else
{
if (this.speedX !== 0)
{
this.speedX = this.speedX > 0 ? Math.floor(this.speedX - this.accel) : Math.ceil(this.speedX + this.accel);
}
if (this.speedY !== 0)
{
this.speedY = this.speedY > 0 ? Math.floor(this.speedY - this.accel) : Math.ceil(this.speedY + this.accel);
}
}
};
player.prototype.setControls = game.mouseControls ? player.prototype.mouseControls : player.prototype.keyboardControls;
player.prototype.setThrust = function()
{
this.x -= this.speedX;
this.y -= this.speedY;
};
player.prototype.setBoundaries = function()
{
//the bondaries and edge portals
if (this.x < this.limitX1)
{
this.x = this.limitX2;
}
else if (this.x > this.limitX2)
{
this.x = this.limitX1;
}
else if (this.y < this.limitY1)
{
this.y = this.limitY1 - this.speedY;
}
else if (this.y > this.limitY2)
{
this.y = this.limitY2 - this.speedY;
}
};
player.prototype.fireLasers = function(level)
{
switch (level)
{
case 3:
this.midLaserX = Math.round(this.x + this.centerX);
this.leftLaserX = Math.round(this.x + this.centerLeftX);
this.rightLaserX = Math.round(this.x + this.centerRightX);
this.laserY = Math.round(this.y - this.tipY);
getNewBullet(this.leftLaserX, this.laserY, 4, 1, 1, 'bullet_p_laser');
getNewBullet(this.midLaserX, this.laserY, 4, 1, 1, 'bullet_p_laser');
getNewBullet(this.rightLaserX, this.laserY, 4, 1, 1, 'bullet_p_laser');
break;