// Function Fix for "requestAnimationFrame" 12.06.17
(function() {
var lastTime = 0;
var vendors = ['ms', 'moz', 'webkit', 'o'];
for(var x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {
window.requestAnimationFrame = window[vendors[x]+'RequestAnimationFrame'];
window.cancelAnimationFrame = window[vendors[x]+'CancelAnimationFrame']
|| window[vendors[x]+'CancelRequestAnimationFrame'];
}
if (!window.requestAnimationFrame)
window.requestAnimationFrame = function(callback, element) {
var currTime = new Date().getTime();
var timeToCall = Math.max(0, 16 - (currTime - lastTime));
var id = window.setTimeout(function() { callback(currTime + timeToCall); },
timeToCall);
lastTime = currTime + timeToCall;
return id;
};
if (!window.cancelAnimationFrame)
window.cancelAnimationFrame = function(id) {
clearTimeout(id);
};
}());
(function() {
'use strict';
var currentScore = 0;
// Fix for AudioContext 12.06.17
var AudioContext = window.AudioContext // Default
|| window.webkitAudioContext // Safari and old versions of Chrome
|| false;
function Runner(outerContainerId, opt_config) {
if (Runner.instance_) {
return Runner.instance_
}
Runner.instance_ = this;
this.outerContainerEl = document.querySelector(outerContainerId);
this.containerEl = null;
this.snackbarEl = null;
this.config = opt_config || Runner.config;
this.dimensions = Runner.defaultDimensions;
this.canvas = null;
this.canvasCtx = null;
this.tRex = null;
this.distanceMeter = null;
this.distanceRan = 0;
this.highestScore = 0;
this.time = 0;
this.runningTime = 0;
this.msPerFrame = 1000 / FPS;
this.currentSpeed = this.config.SPEED;
this.obstacles = [];
this.started = false;
this.activated = false;
this.crashed = false;
this.paused = false;
this.resizeTimerId_ = null;
this.playCount = 0;
this.audioBuffer = null;
this.soundFx = {};
this.audioContext = null;
this.images = {};
this.imagesLoaded = 0;
this.loadImages();
this.gamepadPreviousKeyDown = false
}
window['Runner'] = Runner;
var DEFAULT_WIDTH = 600;
var FPS = 60;
var IS_HIDPI = window.devicePixelRatio > 1;
var IS_IOS = window.navigator.userAgent.indexOf('CriOS') > -1 || window.navigator.userAgent == 'UIWebViewForStaticFileContent';
var IS_MOBILE = window.navigator.userAgent.indexOf('Mobi') > -1 || IS_IOS;
var IS_TOUCH_ENABLED = 'ontouchstart' in window;
Runner.config = {
ACCELERATION: 0.001,
BG_CLOUD_SPEED: 0.2,
BOTTOM_PAD: 10,
CLEAR_TIME: 3000,
CLOUD_FREQUENCY: 0.5,
GAMEOVER_CLEAR_TIME: 750,
GAP_COEFFICIENT: 0.6,
GRAVITY: 0.6,
INITIAL_JUMP_VELOCITY: 12,
MAX_CLOUDS: 6,
MAX_OBSTACLE_LENGTH: 3,
MAX_OBSTACLE_DUPLICATION: 2,
MAX_SPEED: 13,
MIN_JUMP_HEIGHT: 35,
MOBILE_SPEED_COEFFICIENT: 1.2,
RESOURCE_TEMPLATE_ID: 'audio-resources',
SPEED: 6,
SPEED_DROP_COEFFICIENT: 3
};
Runner.defaultDimensions = {
WIDTH: DEFAULT_WIDTH,
HEIGHT: 150
};
Runner.classes = {
CANVAS: 'runner-canvas',
CONTAINER: 'runner-container',
CRASHED: 'crashed',
ICON: 'icon-offline',
SNACKBAR: 'snackbar',
SNACKBAR_SHOW: 'snackbar-show',
TOUCH_CONTROLLER: 'controller'
};
Runner.spriteDefinition = {
LDPI: {
CACTUS_LARGE: {
x: 332,
y: 2
},
CACTUS_SMALL: {
x: 228,
y: 2
},
CLOUD: {
x: 86,
y: 2
},
HORIZON: {
x: 2,
y: 54
},
PTERODACTYL: {
x: 134,
y: 2
},
RESTART: {
x: 2,
y: 2
},
TEXT_SPRITE: {
x: 484,
y: 2
},
TREX: {
x: 677,
y: 2
}
},
HDPI: {
CACTUS_LARGE: {
x: 652,
y: 2
},
CACTUS_SMALL: {
x: 446,
y: 2
},
CLOUD: {
x: 166,
y: 2
},
HORIZON: {
x: 2,
y: 104
},
PTERODACTYL: {
x: 260,
y: 2
},
RESTART: {
x: 2,
y: 2
},
TEXT_SPRITE: {
x: 954,
y: 2
},
TREX: {
x: 1338,
y: 2
}
}
};
Runner.sounds = {
BUTTON_PRESS: 'offline-sound-press',
HIT: 'offline-sound-hit',
SCORE: 'offline-sound-reached'
};
Runner.keycodes = {
JUMP: {
'38': 1,
'32': 1
},
DUCK: {
'40': 1
},
RESTART: {
'13': 1
}
};
Runner.events = {
ANIM_END: 'webkitAnimationEnd',
CLICK: 'click',
KEYDOWN: 'keydown',
KEYUP: 'keyup',
MOUSEDOWN: 'mousedown',
MOUSEUP: 'mouseup',
RESIZE: 'resize',
TOUCHEND: 'touchend',
TOUCHSTART: 'touchstart',
VISIBILITY: 'visibilitychange',
BLUR: 'blur',
FOCUS: 'focus',
LOAD: 'load',
GAMEPADCONNECTED: 'gamepadconnected'
};
Runner.prototype = {
isDisabled: function() {
return loadTimeData && loadTimeData.valueExists('disabledEasterEgg')
},
setupDisabledRunner: function() {
this.containerEl = document.createElement('div');
this.containerEl.className = Runner.classes.SNACKBAR;
this.containerEl.textContent = loadTimeData.getValue('disabledEasterEgg');
this.outerContainerEl.appendChild(this.containerEl);
document.addEventListener(Runner.events.KEYDOWN, function(e) {
if (Runner.keycodes.JUMP[e.keyCode]) {
this.containerEl.classList.add(Runner.classes.SNACKBAR_SHOW);
document.querySelector('.icon').classList.add('icon-disabled')
}
}.bind(this))
},
updateConfigSetting: function(setting, value) {
if (setting in this.config && value != undefined) {
this.config[setting] = value;
switch (setting) {
case 'GRAVITY':
case 'MIN_JUMP_HEIGHT':
case 'SPEED_DROP_COEFFICIENT':
this.tRex.config[setting] = value;
break;
case 'INITIAL_JUMP_VELOCITY':
this.tRex.setJumpVelocity(value);
break;
case 'SPEED':
this.setSpeed(value);
break
}
}
},
loadImages: function() {
if (IS_HIDPI) {
Runner.imageSprite = document.getElementById('offline-resources-2x');
this.spriteDef = Runner.spriteDefinition.HDPI
} else {
Runner.imageSprite = document.getElementById('offline-resources-1x');
this.spriteDef = Runner.spriteDefinition.LDPI
}
this.init()
},
loadSounds: function() {
if (!IS_IOS && AudioContext) { // Fix 12.06.17
this.audioContext = new AudioContext();
var resourceTemplate = document.getElementById(this.config.RESOURCE_TEMPLATE_ID).content;
for (var sound in Runner.sounds) {
var soundSrc = resourceTemplate.getElementById(Runner.sounds[sound]).src;
soundSrc = soundSrc.substr(soundSrc.indexOf(',') + 1);
var buffer = decodeBase64ToArrayBuffer(soundSrc);
this.audioContext.decodeAudioData(buffer, function(index, audioData) {
this.soundFx[index] = audioData
}.bind(this, sound))
}
}
},
setSpeed: function(opt_speed) {
var speed = opt_speed || this.currentSpeed;
if (this.dimensions.WIDTH < DEFAULT_WIDTH) {
var mobileSpeed = speed * this.dimensions.WIDTH / DEFAULT_WIDTH * this.config.MOBILE_SPEED_COEFFICIENT;
this.currentSpeed = mobileSpeed > speed ? speed : mobileSpeed
} else if (opt_speed) {
this.currentSpeed = opt_speed
}
},
init: function() {
this.adjustDimensions();
this.setSpeed();
this.containerEl = document.createElement('div');
this.containerEl.className = Runner.classes.CONTAINER;
this.canvas = createCanvas(this.containerEl, this.dimensions.WIDTH, this.dimensions.HEIGHT, Runner.classes.PLAYER);
this.canvasCtx = this.canvas.getContext('2d');
this.canvasCtx.fillStyle = '#f7f7f7';
this.canvasCtx.fill();
Runner.updateCanvasScaling(this.canvas);
this.horizon = new Horizon(this.canvas, this.spriteDef, this.dimensions, this.config.GAP_COEFFICIENT);
this.distanceMeter = new DistanceMeter(this.canvas, this.spriteDef.TEXT_SPRITE, this.dimensions.WIDTH);
this.tRex = new Trex(this.canvas, this.spriteDef.TREX);
this.outerContainerEl.appendChild(this.containerEl);
if (IS_MOBILE) {
this.createTouchController()
}
this.startListening();
this.update();
window.addEventListener(Runner.events.RESIZE, this.debounceResize.bind(this))
},
createTouchController: function() {
this.touchController = document.createElement('div');
this.touchController.className = Runner.classes.TOUCH_CONTROLLER
},
debounceResize: function() {
if (!this.resizeTimerId_) {
this.resizeTimerId_ = setInterval(this.adjustDimensions.bind(this), 250)
}
},
adjustDimensions: function() {
clearInterval(this.resizeTimerId_);
this.resizeTimerId_ = null;
var boxStyles = window.getComputedStyle(this.outerContainerEl);
var padding = Number(boxStyles.paddingLeft.substr(0, boxStyles.paddingLeft.length - 2));
this.dimensions.WIDTH = this.outerContainerEl.offsetWidth - padding * 2;
if (this.canvas) {
this.canvas.width = this.dimensions.WIDTH;
this.canvas.height = this.dimensions.HEIGHT;
Runner.updateCanvasScaling(this.canvas);
this.distanceMeter.calcXPos(this.dimensions.WIDTH);
this.clearCanvas();
this.horizon.update(0, 0, true);
this.tRex.update(0);
if (this.activated || this.crashed || this.paused) {
this.containerEl.style.width = this.dimensions.WIDTH + 'px';
this.containerEl.style.height = this.dimensions.HEIGHT + 'px';
this.distanceMeter.update(0, Math.ceil(this.distanceRan));
this.stop()
} else {
this.tRex.draw(0, 0)
}
if (this.crashed && this.gameOverPanel) {
this.gameOverPanel.updateDimensions(this.dimensions.WIDTH);
this.gameOverPanel.draw()
}
}
},
playIntro: function() {
if (!this.started && !this.crashed) {
this.playingIntro = true;
this.tRex.playingIntro = true;
var keyframes = '@-webkit-keyframes intro { ' + 'from { width:' + Trex.config.WIDTH + 'px }' + 'to { width: ' + this.dimensions.WIDTH + 'px }' + '}';
document.styleSheets[0].insertRule(keyframes, 0);
this.containerEl.addEventListener(Runner.events.ANIM_END, this.startGame.bind(this));
this.containerEl.style.webkitAnimation = 'intro .4s ease-out 1 both';
this.containerEl.style.width = this.dimensions.WIDTH + 'px';
if (this.touchController) {
this.outerContainerEl.appendChild(this.touchController)
}
this.activated = true;
this.started = true
} else if (this.crashed) {
this.restart()
}
},
startGame: function() {
this.runningTime = 0;
this.playingIntro = false;
this.tRex.playingIntro = false;
this.containerEl.style.webkitAnimation = '';
this.playCount++;
document.addEventListener(Runner.events.VISIBILITY, this.onVisibilityChange.bind(this));
window.addEventListener(Runner.events.BLUR, this.onVisibilityChange.bind(this));
window.addEventListener(Runner.events.FOCUS, this.onVisibilityChange.bind(this))
},
clearCanvas: function() {
this.canvasCtx.clearRect(0, 0, this.dimensions.WIDTH, this.dimensions.HEIGHT)
},
update: function() {
this.drawPending = false;
var now = getTimeStamp();
var deltaTime = now - (this.time || now);
this.time = now;
if (this.activated) {
this.clearCanvas();
if (this.tRex.jumping) {
this.tRex.updateJump(deltaTime)
}
this.runningTime += deltaTime;
var hasObstacles = this.runningTime > this.config.CLEAR_TIME;
if (this.tRex.jumpCount == 1 && !this.playingIntro) {
this.playIntro()
}
if (this.playingIntro) {
this.horizon.update(0, this.currentSpeed, hasObstacles)
} else {
deltaTime = !this.started ? 0 : deltaTime;
this.horizon.update(deltaTime, this.currentSpeed, hasObstacles)
}
var collision = hasObstacles && checkForCollision(this.horizon.obstacles[0], this.tRex);
if (!collision) {
this.distanceRan += this.currentSpeed * deltaTime / this.msPerFrame;
if (this.currentSpeed < this.config.MAX_SPEED) {
this.currentSpeed += this.config.ACCELERATION
}
} else {
this.gameOver()
}
var playAcheivementSound = this.distanceMeter.update(deltaTime, Math.ceil(this.distanceRan));
if (playAcheivementSound) {
this.playSound(this.soundFx.SCORE)
}
}
if (!this.crashed) {
this.tRex.update(deltaTime);
this.raq()
}
},
handleEvent: function(e) {
return (function(evtType, events) {
switch (evtType) {
case events.KEYDOWN:
case events.TOUCHSTART:
case events.MOUSEDOWN:
case events.GAMEPADCONNECTED:
this.onKeyDown(e);
break;
case events.KEYUP:
case events.TOUCHEND:
case events.MOUSEUP:
this.onKeyUp(e);
break
}
}.bind(this))(e.type, Runner.events)
},
startListening: function() {
document.addEventListener(Runner.events.KEYDOWN, this);
document.addEventListener(Runner.events.KEYUP, this);
if (IS_MOBILE) {
this.touchController.addEventListener(Runner.events.TOUCHSTART, this);
this.touchController.addEventListener(Runner.events.TOUCHEND, this);
this.containerEl.addEventListener(Runner.events.TOUCHSTART, this)
} else {
document.addEventListener(Runner.events.MOUSEDOWN, this);
document.addEventListener(Runner.events.MOUSEUP, this)
}
window.addEventListener(Runner.events.GAMEPADCONNECTED, this);
window.setInterval(this.pollGamepads.bind(this), 10)
},
pollGamepads: function() {
var gamepads = navigator.getGamepads ? navigator.getGamepads() : (navigator.webkitGetGamepads ? navigator.webkitGetGamepads() : []); // Fix for navigator.getGamepads() 12.06.17
var keydown = false;
for (var i = 0; i < gamepads.length; i++) {
if (gamepads[i] != undefined) {
if (gamepads[i].buttons.filter(function(e) {
return e.pressed == true
}).length > 0) {
keydown = true
}
}
}
if (keydown != this.gamepadPreviousKeyDown) {
this.gamepadPreviousKeyDown = keydown;
var event = new Event(keydown ? 'keydown' : 'keyup');
event.keyCode = 32;
event.which = event.keyCode;
event.altKey = false;
event.ctrlKey = true;
event.shiftKey = false;
event.metaKey = false;
document.dispatchEvent(event)
}
},
stopListening: function() {
document.removeEventListener(Runner.events.KEYDOWN, this);
document.removeEventListener(Runner.events.KEYUP, this);
if (IS_MOBILE) {
this.touchController.removeEventListener(Runner.events.TOUCHSTART, this);
this.touchController.removeEventListener(Runner.events.TOUCHEND, this);
this.containerEl.removeEventListener(Runner.events.TOUCHSTART, this)
} else {
document.removeEventListener(Runner.events.MOUSEDOWN, this);
document.removeEventListener(Runner.events.MOUSEUP, this)
}
},
onKeyDown: function(e) {
if (IS_MOBILE) {
e.preventDefault()
}
if (!this.crashed && (Runner.keycodes.JUMP[e.keyCode] || e.type == Runner.events.TOUCHSTART || e.type == Runner.events.GAMEPADCONNECTED)) {
if (!this.activated) {
this.loadSounds();
this.activated = true
}
if (!this.tRex.jumping && !this.tRex.ducking) {
this.playSound(this.soundFx.BUTTON_PRESS);
this.tRex.startJump(this.currentSpeed)
}
}
if (this.crashed && e.type == Runner.events.TOUCHSTART && e.currentTarget == this.containerEl) {
this.restart()
}
if (this.activated && !this.crashed && Runner.keycodes.DUCK[e.keyCode]) {
e.preventDefault();
if (this.tRex.jumping) {
this.tRex.setSpeedDrop()
} else if (!this.tRex.jumping && !this.tRex.ducking) {
this.tRex.setDuck(true)
}
}
},
onKeyUp: function(e) {
var keyCode = String(e.keyCode);
var isjumpKey = Runner.keycodes.JUMP[keyCode] || e.type == Runner.events.TOUCHEND || e.type == Runner.events.MOUSEDOWN;
if (this.isRunning() && isjumpKey) {
this.tRex.endJump()
} else if (Runner.keycodes.DUCK[keyCode]) {
this.tRex.speedDrop = false;
this.tRex.setDuck(false)
} else if (this.crashed) {
var deltaTime = getTimeStamp() - this.time;
if (Runner.keycodes.RESTART[keyCode] || this.isLeftClickOnCanvas(e) || (deltaTime >= this.config.GAMEOVER_CLEAR_TIME && Runner.keycodes.JUMP[keyCode])) {
this.restart()
}
} else if (this.paused && isjumpKey) {
this.tRex.reset();
this.play()
}
},
isLeftClickOnCanvas: function(e) {
return e.button != null && e.button < 2 && e.type == Runner.events.MOUSEUP && e.target == this.canvas
},
raq: function() {
if (!this.drawPending) {
this.drawPending = true;
this.raqId = requestAnimationFrame(this.update.bind(this))
}
},
isRunning: function() {
return !!this.raqId
},
gameOver: function() {
this.playSound(this.soundFx.HIT);
vibrate(200);
this.stop();
this.crashed = true;
this.distanceMeter.acheivement = false;
this.tRex.update(100, Trex.status.CRASHED);
if (!this.gameOverPanel) {
this.gameOverPanel = new GameOverPanel(this.canvas, this.spriteDef.TEXT_SPRITE, this.spriteDef.RESTART, this.dimensions)
} else {
this.gameOverPanel.draw()
}
if (this.distanceRan > this.highestScore) {
this.highestScore = Math.ceil(this.distanceRan);
this.distanceMeter.setHighScore(this.highestScore);
currentScore = Math.round(this.highestScore * 0.025);
var score_d = 0;
if (document.getElementById("score-5") !== null) {
score_d = document.getElementById("score-5").innerHTML
}
if (currentScore > score_d) {
var xhr = new XMLHttpRequest();
xhr.open('GET', '/inc/check.php?score=' + currentScore, false);
xhr.send();
if (xhr.status != 200) {} else {
if (xhr.responseText != '') {
if (user_name == '') {
user_name = prompt(xhr.responseText, 'Anonym');
if (user_name == 'null' || user_name == '') {
user_name = 'Anonym'
}
} else {
alert(xhr.responseText)
}
xhr.open('GET', '/inc/set.php?name=' + user_name + '&score=' + currentScore, false);
xhr.send();
location.reload()
}
}
}
}
this.time = getTimeStamp()
},
stop: function() {
this.activated = false;
this.paused = true;
cancelAnimationFrame(this.raqId);
this.raqId = 0
},
play: function() {
if (!this.crashed) {
this.activated = true;
this.paused = false;
this.tRex.update(0, Trex.status.RUNNING);
this.time = getTimeStamp();
this.update()
}
},
restart: function() {
if (!this.raqId) {
this.playCount++;
this.runningTime = 0;
this.activated = true;
this.crashed = false;
this.distanceRan = 0;
this.setSpeed(this.config.SPEED);
this.time = getTimeStamp();
this.containerEl.classList.remove(Runner.classes.CRASHED);
this.clearCanvas();
this.distanceMeter.reset(this.highestScore);
this.horizon.reset();
this.tRex.reset();
this.playSound(this.soundFx.BUTTON_PRESS);
this.update()
}
},
onVisibilityChange: function(e) {
if (document.hidden || document.webkitHidden || e.type == 'blur') {
this.stop()
} else if (!this.crashed) {
this.tRex.reset();
this.play()
}
},
playSound: function(soundBuffer) {
if (soundBuffer) {
var sourceNode = this.audioContext.createBufferSource();
sourceNode.buffer = soundBuffer;
sourceNode.connect(this.audioContext.destination);
sourceNode.start(0)
}
}
};
Runner.updateCanvasScaling = function(canvas, opt_width, opt_height) {
var context = canvas.getContext('2d');
var devicePixelRatio = Math.floor(window.devicePixelRatio) || 1;
var backingStoreRatio = Math.floor(context.webkitBackingStorePixelRatio) || 1;
var ratio = devicePixelRatio / backingStoreRatio;
if (devicePixelRatio !== backingStoreRatio) {
var oldWidth = opt_width || canvas.width;
var oldHeight = opt_height || canvas.height;
canvas.width = oldWidth * ratio;
canvas.height = oldHeight * ratio;
canvas.style.width = oldWidth + 'px';
canvas.style.height = oldHeight + 'px';
context.scale(ratio, ratio);
return true
} else if (devicePixelRatio == 1) {
canvas.style.width = canvas.width + 'px';
canvas.style.height = canvas.height + 'px'
}
return false
};
function getRandomNum(min, max) {
return Math.floor(Math.random() * (max - min + 1)) + min
}
function vibrate(duration) {
if (IS_MOBILE && window.navigator.vibrate) {
window.navigator.vibrate(duration)
}
}
function createCanvas(container, width, height, opt_classname) {
var canvas = document.createElement('canvas');
canvas.className = opt_classname ? Runner.classes.CANVAS + ' ' + opt_classname : Runner.classes.CANVAS;
canvas.width = width;
canvas.height = height;
container.appendChild(canvas);
return canvas
}
function decodeBase64ToArrayBuffer(base64String) {
var len = (base64String.length / 4) * 3;
var str = atob(base64String);
var arrayBuffer = new ArrayBuffer(len);
var bytes = new Uint8Array(arrayBuffer);
for (var i = 0; i < len; i++) {
bytes[i] = str.charCodeAt(i)
}
return bytes.buffer
}
function getTimeStamp() {
//return IS_IOS ? new Date().getTime() : performance.now()
return new Date().getTime(); // Safari 5.17 Fix 12.06.17
}
function GameOverPanel(canvas, textImgPos, restartImgPos, dimensions) {
this.canvas = canvas;
this.canvasCtx = canvas.getContext('2d');
this.canvasDimensions = dimensions;
this.textImgPos = textImgPos;
this.restartImgPos = restartImgPos;
this.draw()
};
GameOverPanel.dimensions = {
TEXT_X: 0,
TEXT_Y: 13,
TEXT_WIDTH: 191,
TEXT_HEIGHT: 11,
RESTART_WIDTH: 36,
RESTART_HEIGHT: 32
};
GameOverPanel.prototype = {
updateDimensions: function(width, opt_height) {
this.canvasDimensions.WIDTH = width;
if (opt_height) {
this.canvasDimensions.HEIGHT = opt_height
}
},
draw: function() {
var dimensions = GameOverPanel.dimensions;
var centerX = this.canvasDimensions.WIDTH / 2;
var textSourceX = dimensions.TEXT_X;
var textSourceY = dimensions.TEXT_Y;
var textSourceWidth = dimensions.TEXT_WIDTH;
var textSourceHeight = dimensions.TEXT_HEIGHT;
var textTargetX = Math.round(centerX - (dimensions.TEXT_WIDTH / 2));
var textTargetY = Math.round((this.canvasDimensions.HEIGHT - 25) / 3);
var textTargetWidth = dimensions.TEXT_WIDTH;
var textTargetHeight = dimensions.TEXT_HEIGHT;
var restartSourceWidth = dimensions.RESTART_WIDTH;
var restartSourceHeight = dimensions.RESTART_HEIGHT;
var restartTargetX = centerX - (dimensions.RESTART_WIDTH / 2);
var restartTargetY = this.canvasDimensions.HEIGHT / 2;
if (IS_HIDPI) {
textSourceY *= 2;
textSourceX *= 2;
textSourceWidth *= 2;
textSourceHeight *= 2;
restartSourceWidth *= 2;
restartSourceHeight *= 2
}
textSourceX += this.textImgPos.x;
textSourceY += this.textImgPos.y;
this.canvasCtx.drawImage(Runner.imageSprite, textSourceX, textSourceY, textSourceWidth, textSourceHeight, textTargetX, textTargetY, textTargetWidth, textTargetHeight);
this.canvasCtx.drawImage(Runner.imageSprite, this.restartImgPos.x, this.restartImgPos.y, restartSourceWidth, restartSourceHeight, restartTargetX, restartTargetY, dimensions.RESTART_WIDTH, dimensions.RESTART_HEIGHT)
}
};
function checkForCollision(obstacle, tRex, opt_canvasCtx) {
var obstacleBoxXPos = Runner.defaultDimensions.WIDTH + obstacle.xPos;
var tRexBox = new CollisionBox(tRex.xPos + 1, tRex.yPos + 1, tRex.config.WIDTH - 2, tRex.config.HEIGHT - 2);
var obstacleBox = new CollisionBox(obstacle.xPos + 1, obstacle.yPos + 1, obstacle.typeConfig.width * obstacle.size - 2, obstacle.typeConfig.height - 2);
if (opt_canvasCtx) {
drawCollisionBoxes(opt_canvasCtx, tRexBox, obstacleBox)
}
if (boxCompare(tRexBox, obstacleBox)) {
var collisionBoxes = obstacle.collisionBoxes;
var tRexCollisionBoxes = tRex.ducking ? Trex.collisionBoxes.DUCKING : Trex.collisionBoxes.RUNNING;
for (var t = 0; t < tRexCollisionBoxes.length; t++) {
for (var i = 0; i < collisionBoxes.length; i++) {
var adjTrexBox = createAdjustedCollisionBox(tRexCollisionBoxes[t], tRexBox);
var adjObstacleBox = createAdjustedCollisionBox(collisionBoxes[i], obstacleBox);
var crashed = boxCompare(adjTrexBox, adjObstacleBox);
if (opt_canvasCtx) {
drawCollisionBoxes(opt_canvasCtx, adjTrexBox, adjObstacleBox)
}
if (crashed) {
return [adjTrexBox, adjObstacleBox]
}
}
}
}
return false
};
function createAdjustedCollisionBox(box, adjustment) {
return new CollisionBox(box.x + adjustment.x, box.y + adjustment.y, box.width, box.height)
};
function drawCollisionBoxes(canvasCtx, tRexBox, obstacleBox) {
canvasCtx.save();
canvasCtx.strokeStyle = '#f00';
canvasCtx.strokeRect(tRexBox.x, tRexBox.y, tRexBox.width, tRexBox.height);
canvasCtx.strokeStyle = '#0f0';
canvasCtx.strokeRect(obstacleBox.x, obstacleBox.y, obstacleBox.width, obstacleBox.height);
canvasCtx.restore()
};
function boxCompare(tRexBox, obstacleBox) {
var crashed = false;
var tRexBoxX = tRexBox.x;
var tRexBoxY = tRexBox.y;
var obstacleBoxX = obstacleBox.x;
var obstacleBoxY = obstacleBox.y;
if (tRexBox.x < obstacleBoxX + obstacleBox.width && tRexBox.x + tRexBox.width > obstacleBoxX && tRexBox.y < obstacleBox.y + obstacleBox.height && tRexBox.height + tRexBox.y > obstacleBox.y) {
crashed = true
}
return crashed
};
function CollisionBox(x, y, w, h) {
this.x = x;
this.y = y;
this.width = w;
this.height = h
};
function Obstacle(canvasCtx, type, spriteImgPos, dimensions, gapCoefficient, speed) {
this.canvasCtx = canvasCtx;
this.spritePos = spriteImgPos;
this.typeConfig = type;
this.gapCoefficient = gapCoefficient;
this.size = getRandomNum(1, Obstacle.MAX_OBSTACLE_LENGTH);
this.dimensions = dimensions;
this.remove = false;
this.xPos = 0;
this.yPos = 0;
this.width = 0;
this.collisionBoxes = [];
this.gap = 0;
this.speedOffset = 0;
this.currentFrame = 0;
this.timer = 0;
this.init(speed)
};
Obstacle.MAX_GAP_COEFFICIENT = 1.5;
Obstacle.MAX_OBSTACLE_LENGTH = 3, Obstacle.prototype = {
init: function(speed) {
this.cloneCollisionBoxes();
if (this.size > 1 && this.typeConfig.multipleSpeed > speed) {
this.size = 1
}
this.width = this.typeConfig.width * this.size;
this.xPos = this.dimensions.WIDTH - this.width;
if (Array.isArray(this.typeConfig.yPos)) {
var yPosConfig = IS_MOBILE ? this.typeConfig.yPosMobile : this.typeConfig.yPos;
this.yPos = yPosConfig[getRandomNum(0, yPosConfig.length - 1)]
} else {
this.yPos = this.typeConfig.yPos
}
this.draw();
if (this.size > 1) {
this.collisionBoxes[1].width = this.width - this.collisionBoxes[0].width - this.collisionBoxes[2].width;
this.collisionBoxes[2].x = this.width - this.collisionBoxes[2].width
}
if (this.typeConfig.speedOffset) {
this.speedOffset = Math.random() > 0.5 ? this.typeConfig.speedOffset : -this.typeConfig.speedOffset
}
this.gap = this.getGap(this.gapCoefficient, speed)
},
draw: function() {
var sourceWidth = this.typeConfig.width;
var sourceHeight = this.typeConfig.height;
if (IS_HIDPI) {
sourceWidth = sourceWidth * 2;
sourceHeight = sourceHeight * 2
}
var sourceX = (sourceWidth * this.size) * (0.5 * (this.size - 1)) + this.spritePos.x;
if (this.currentFrame > 0) {
sourceX += sourceWidth * this.currentFrame
}
this.canvasCtx.drawImage(Runner.imageSprite, sourceX, this.spritePos.y, sourceWidth * this.size, sourceHeight, this.xPos, this.yPos, this.typeConfig.width * this.size, this.typeConfig.height)
},
update: function(deltaTime, speed) {
if (!this.remove) {
if (this.typeConfig.speedOffset) {
speed += this.speedOffset
}
this.xPos -= Math.floor((speed * FPS / 1000) * deltaTime);
if (this.typeConfig.numFrames) {
this.timer += deltaTime;
if (this.timer >= this.typeConfig.frameRate) {
this.currentFrame = this.currentFrame == this.typeConfig.numFrames - 1 ? 0 : this.currentFrame + 1;
this.timer = 0
}
}
this.draw();
if (!this.isVisible()) {
this.remove = true
}
}
},
getGap: function(gapCoefficient, speed) {
var minGap = Math.round(this.width * speed + this.typeConfig.minGap * gapCoefficient);
var maxGap = Math.round(minGap * Obstacle.MAX_GAP_COEFFICIENT);
return getRandomNum(minGap, maxGap)
},
isVisible: function() {
return this.xPos + this.width > 0
},
cloneCollisionBoxes: function() {
var collisionBoxes = this.typeConfig.collisionBoxes;
for (var i = collisionBoxes.length - 1; i >= 0; i--) {
this.collisionBoxes[i] = new CollisionBox(collisionBoxes[i].x, collisionBoxes[i].y, collisionBoxes[i].width, collisionBoxes[i].height)
}
}
};
Obstacle.types = [{
type: 'CACTUS_SMALL',
width: 17,
height: 35,
yPos: 105,
multipleSpeed: 4,
minGap: 120,
minSpeed: 0,
collisionBoxes: [new CollisionBox(0, 7, 5, 27), new CollisionBox(4, 0, 6, 34), new CollisionBox(10, 4, 7, 14)]
}, {
type: 'CACTUS_LARGE',
width: 25,
height: 50,
yPos: 90,
multipleSpeed: 7,
minGap: 120,
minSpeed: 0,
collisionBoxes: [new CollisionBox(0, 12, 7, 38), new CollisionBox(8, 0, 7, 49), new CollisionBox(13, 10, 10, 38)]
}, {
type: 'PTERODACTYL',
width: 46,
height: 40,
yPos: [100, 75, 50],
yPosMobile: [100, 50],
multipleSpeed: 999,
minSpeed: 8.5,
minGap: 150,
collisionBoxes: [new CollisionBox(15, 15, 16, 5), new CollisionBox(18, 21, 24, 6), new CollisionBox(2, 14, 4, 3), new CollisionBox(6, 10, 4, 7), new CollisionBox(10, 8, 6, 9)],
numFrames: 2,
frameRate: 1000 / 6,
speedOffset: .8
}];
function Trex(canvas, spritePos) {
this.canvas = canvas;
this.canvasCtx = canvas.getContext('2d');
this.spritePos = spritePos;
this.xPos = 0;
this.yPos = 0;
this.groundYPos = 0;
this.currentFrame = 0;
this.currentAnimFrames = [];
this.blinkDelay = 0;
this.animStartTime = 0;
this.timer = 0;
this.msPerFrame = 1000 / FPS;
this.config = Trex.config;
this.status = Trex.status.WAITING;
this.jumping = false;
this.ducking = false;
this.jumpVelocity = 0;
this.reachedMinHeight = false;
this.speedDrop = false;
this.jumpCount = 0;
this.jumpspotX = 0;
this.init()
};
Trex.config = {
DROP_VELOCITY: -5,
GRAVITY: 0.6,
HEIGHT: 47,
HEIGHT_DUCK: 25,
INIITAL_JUMP_VELOCITY: -10,
INTRO_DURATION: 1500,
MAX_JUMP_HEIGHT: 30,
MIN_JUMP_HEIGHT: 30,
SPEED_DROP_COEFFICIENT: 3,
SPRITE_WIDTH: 262,
START_X_POS: 50,
WIDTH: 44,
WIDTH_DUCK: 59
};
Trex.collisionBoxes = {
DUCKING: [new CollisionBox(1, 18, 55, 25)],
RUNNING: [new CollisionBox(22, 0, 17, 16), new CollisionBox(1, 18, 30, 9), new CollisionBox(10, 35, 14, 8), new CollisionBox(1, 24, 29, 5), new CollisionBox(5, 30, 21, 4), new CollisionBox(9, 34, 15, 4)]
};
Trex.status = {
CRASHED: 'CRASHED',
DUCKING: 'DUCKING',
JUMPING: 'JUMPING',
RUNNING: 'RUNNING',
WAITING: 'WAITING'
};
Trex.BLINK_TIMING = 7000;
Trex.animFrames = {
WAITING: {
frames: [44, 0],
msPerFrame: 1000 / 3
},
RUNNING: {
frames: [88, 132],
msPerFrame: 1000 / 12
},
CRASHED: {
frames: [220],
msPerFrame: 1000 / 60
},
JUMPING: {
frames: [0],
msPerFrame: 1000 / 60
},
DUCKING: {
frames: [262, 321],
msPerFrame: 1000 / 8
}
};
Trex.prototype = {
init: function() {
this.blinkDelay = this.setBlinkDelay();
this.groundYPos = Runner.defaultDimensions.HEIGHT - this.config.HEIGHT - Runner.config.BOTTOM_PAD;
this.yPos = this.groundYPos;
this.minJumpHeight = this.groundYPos - this.config.MIN_JUMP_HEIGHT;
this.draw(0, 0);
this.update(0, Trex.status.WAITING)
},
setJumpVelocity: function(setting) {
this.config.INIITAL_JUMP_VELOCITY = -setting;
this.config.DROP_VELOCITY = -setting / 2
},
update: function(deltaTime, opt_status) {
this.timer += deltaTime;
if (opt_status) {
this.status = opt_status;
this.currentFrame = 0;
this.msPerFrame = Trex.animFrames[opt_status].msPerFrame;
this.currentAnimFrames = Trex.animFrames[opt_status].frames;
if (opt_status == Trex.status.WAITING) {
this.animStartTime = getTimeStamp();
this.setBlinkDelay()
}
}
if (this.playingIntro && this.xPos < this.config.START_X_POS) {
this.xPos += Math.round((this.config.START_X_POS / this.config.INTRO_DURATION) * deltaTime)
}
if (this.status == Trex.status.WAITING) {
this.blink(getTimeStamp())
} else {
this.draw(this.currentAnimFrames[this.currentFrame], 0)
}
if (this.timer >= this.msPerFrame) {
this.currentFrame = this.currentFrame == this.currentAnimFrames.length - 1 ? 0 : this.currentFrame + 1;
this.timer = 0
}
if (this.speedDrop && this.yPos == this.groundYPos) {
this.speedDrop = false;
this.setDuck(true)
}
},
draw: function(x, y) {
var sourceX = x;
var sourceY = y;
var sourceWidth = this.ducking && this.status != Trex.status.CRASHED ? this.config.WIDTH_DUCK : this.config.WIDTH;
var sourceHeight = this.config.HEIGHT;
if (IS_HIDPI) {
sourceX *= 2;
sourceY *= 2;
sourceWidth *= 2;
sourceHeight *= 2
}
sourceX += this.spritePos.x;
sourceY += this.spritePos.y;
if (this.ducking && this.status != Trex.status.CRASHED) {
this.canvasCtx.drawImage(Runner.imageSprite, sourceX, sourceY, sourceWidth, sourceHeight, this.xPos, this.yPos, this.config.WIDTH_DUCK, this.config.HEIGHT)
} else {
if (this.ducking && this.status == Trex.status.CRASHED) {
this.xPos++
}
this.canvasCtx.drawImage(Runner.imageSprite, sourceX, sourceY, sourceWidth, sourceHeight, this.xPos, this.yPos, this.config.WIDTH, this.config.HEIGHT)
}
},
setBlinkDelay: function() {
this.blinkDelay = Math.ceil(Math.random() * Trex.BLINK_TIMING)
},
blink: function(time) {
var deltaTime = time - this.animStartTime;
if (deltaTime >= this.blinkDelay) {
this.draw(this.currentAnimFrames[this.currentFrame], 0);
if (this.currentFrame == 1) {
this.setBlinkDelay();
this.animStartTime = time
}
}
},
startJump: function(speed) {
if (!this.jumping) {
this.update(0, Trex.status.JUMPING);
this.jumpVelocity = this.config.INIITAL_JUMP_VELOCITY - (speed / 10);
this.jumping = true;
this.reachedMinHeight = false;
this.speedDrop = false
}
},
endJump: function() {
if (this.reachedMinHeight && this.jumpVelocity < this.config.DROP_VELOCITY) {
this.jumpVelocity = this.config.DROP_VELOCITY
}
},
updateJump: function(deltaTime, speed) {
var msPerFrame = Trex.animFrames[this.status].msPerFrame;
var framesElapsed = deltaTime / msPerFrame;
if (this.speedDrop) {
this.yPos += Math.round(this.jumpVelocity * this.config.SPEED_DROP_COEFFICIENT * framesElapsed)
} else {
this.yPos += Math.round(this.jumpVelocity * framesElapsed)
}
this.jumpVelocity += this.config.GRAVITY * framesElapsed;
if (this.yPos < this.minJumpHeight || this.speedDrop) {
this.reachedMinHeight = true
}
if (this.yPos < this.config.MAX_JUMP_HEIGHT || this.speedDrop) {
this.endJump()
}
if (this.yPos > this.groundYPos) {
this.reset();
this.jumpCount++
}
this.update(deltaTime)
},
setSpeedDrop: function() {
this.speedDrop = true;
this.jumpVelocity = 1
},
setDuck: function(isDucking) {
if (isDucking && this.status != Trex.status.DUCKING) {
this.update(0, Trex.status.DUCKING);
this.ducking = true
} else if (this.status == Trex.status.DUCKING) {
this.update(0, Trex.status.RUNNING);
this.ducking = false
}
},
reset: function() {
this.yPos = this.groundYPos;
this.jumpVelocity = 0;
this.jumping = false;
this.ducking = false;
this.update(0, Trex.status.RUNNING);
this.midair = false;
this.speedDrop = false;
this.jumpCount = 0
}
};
function DistanceMeter(canvas, spritePos, canvasWidth) {
this.canvas = canvas;
this.canvasCtx = canvas.getContext('2d');
this.image = Runner.imageSprite;
this.spritePos = spritePos;
this.x = 0;
this.y = 5;
this.currentDistance = 0;
this.maxScore = 0;
this.highScore = 0;
this.container = null;
this.digits = [];
this.acheivement = false;
this.defaultString = '';
this.flashTimer = 0;
this.flashIterations = 0;
this.config = DistanceMeter.config;
this.maxScoreUnits = this.config.MAX_DISTANCE_UNITS;
this.init(canvasWidth)
};
DistanceMeter.dimensions = {
WIDTH: 10,
HEIGHT: 13,
DEST_WIDTH: 11
};
DistanceMeter.yPos = [0, 13, 27, 40, 53, 67, 80, 93, 107, 120];
DistanceMeter.config = {
MAX_DISTANCE_UNITS: 5,
ACHIEVEMENT_DISTANCE: 100,
COEFFICIENT: 0.025,
FLASH_DURATION: 1000 / 4,
FLASH_ITERATIONS: 3
};
DistanceMeter.prototype = {
init: function(width) {
var maxDistanceStr = '';
this.calcXPos(width);
this.maxScore = this.maxScoreUnits;
for (var i = 0; i < this.maxScoreUnits; i++) {
this.draw(i, 0);
this.defaultString += '0';
maxDistanceStr += '9'
}
this.maxScore = parseInt(maxDistanceStr)
},
calcXPos: function(canvasWidth) {
this.x = canvasWidth - (DistanceMeter.dimensions.DEST_WIDTH * (this.maxScoreUnits + 1))
},
draw: function(digitPos, value, opt_highScore) {
var sourceWidth = DistanceMeter.dimensions.WIDTH;
var sourceHeight = DistanceMeter.dimensions.HEIGHT;
var sourceX = DistanceMeter.dimensions.WIDTH * value;
var sourceY = 0;
var targetX = digitPos * DistanceMeter.dimensions.DEST_WIDTH;
var targetY = this.y;
var targetWidth = DistanceMeter.dimensions.WIDTH;
var targetHeight = DistanceMeter.dimensions.HEIGHT;
if (IS_HIDPI) {
sourceWidth *= 2;
sourceHeight *= 2;
sourceX *= 2
}
sourceX += this.spritePos.x;
sourceY += this.spritePos.y;
this.canvasCtx.save();
if (opt_highScore) {
var highScoreX = this.x - (this.maxScoreUnits * 2) * DistanceMeter.dimensions.WIDTH;
this.canvasCtx.translate(highScoreX, this.y)
} else {
this.canvasCtx.translate(this.x, this.y)
}
this.canvasCtx.drawImage(this.image, sourceX, sourceY, sourceWidth, sourceHeight, targetX, targetY, targetWidth, targetHeight);
this.canvasCtx.restore()
},
getActualDistance: function(distance) {
return distance ? Math.round(distance * this.config.COEFFICIENT) : 0
},
update: function(deltaTime, distance) {
var paint = true;
var playSound = false;
if (!this.acheivement) {
distance = this.getActualDistance(distance);
if (distance > this.maxScore && this.maxScoreUnits == this.config.MAX_DISTANCE_UNITS) {
this.maxScoreUnits++;
this.maxScore = parseInt(this.maxScore + '9')
} else {
this.distance = 0
}
if (distance > 0) {
if (distance % this.config.ACHIEVEMENT_DISTANCE == 0) {
this.acheivement = true;
this.flashTimer = 0;
playSound = true
}
var distanceStr = (this.defaultString + distance).substr(-this.maxScoreUnits);
this.digits = distanceStr.split('')
} else {
this.digits = this.defaultString.split('')
}
} else {
if (this.flashIterations <= this.config.FLASH_ITERATIONS) {
this.flashTimer += deltaTime;
if (this.flashTimer < this.config.FLASH_DURATION) {
paint = false
} else if (this.flashTimer > this.config.FLASH_DURATION * 2) {
this.flashTimer = 0;
this.flashIterations++
}
} else {
this.acheivement = false;
this.flashIterations = 0;
this.flashTimer = 0
}
}
if (paint) {
for (var i = this.digits.length - 1; i >= 0; i--) {
this.draw(i, parseInt(this.digits[i]))
}
}
this.drawHighScore();
return playSound
},
drawHighScore: function() {
this.canvasCtx.save();
this.canvasCtx.globalAlpha = .8;
for (var i = this.highScore.length - 1; i >= 0; i--) {
this.draw(i, parseInt(this.highScore[i], 10), true)
}
this.canvasCtx.restore()
},
setHighScore: function(distance) {
distance = this.getActualDistance(distance);
var highScoreStr = (this.defaultString + distance).substr(-this.maxScoreUnits);
this.highScore = ['10', '11', ''].concat(highScoreStr.split(''))
},
reset: function() {
this.update(0);
this.acheivement = false
}
};
function Cloud(canvas, spritePos, containerWidth) {
this.canvas = canvas;
this.canvasCtx = this.canvas.getContext('2d');
this.spritePos = spritePos;
this.containerWidth = containerWidth;
this.xPos = containerWidth;
this.yPos = 0;
this.remove = false;
this.cloudGap = getRandomNum(Cloud.config.MIN_CLOUD_GAP, Cloud.config.MAX_CLOUD_GAP);
this.init()
};
Cloud.config = {
HEIGHT: 14,
MAX_CLOUD_GAP: 400,
MAX_SKY_LEVEL: 30,
MIN_CLOUD_GAP: 100,
MIN_SKY_LEVEL: 71,
WIDTH: 46
};
Cloud.prototype = {
init: function() {
this.yPos = getRandomNum(Cloud.config.MAX_SKY_LEVEL, Cloud.config.MIN_SKY_LEVEL);
this.draw()
},
draw: function() {
this.canvasCtx.save();
var sourceWidth = Cloud.config.WIDTH;
var sourceHeight = Cloud.config.HEIGHT;
if (IS_HIDPI) {
sourceWidth = sourceWidth * 2;
sourceHeight = sourceHeight * 2
}
this.canvasCtx.drawImage(Runner.imageSprite, this.spritePos.x, this.spritePos.y, sourceWidth, sourceHeight, this.xPos, this.yPos, Cloud.config.WIDTH, Cloud.config.HEIGHT);
this.canvasCtx.restore()
},
update: function(speed) {
if (!this.remove) {
this.xPos -= Math.ceil(speed);
this.draw();
if (!this.isVisible()) {
this.remove = true
}
}
},
isVisible: function() {
return this.xPos + Cloud.config.WIDTH > 0
}
};
function HorizonLine(canvas, spritePos) {
this.spritePos = spritePos;
this.canvas = canvas;
this.canvasCtx = canvas.getContext('2d');
this.sourceDimensions = {};
this.dimensions = HorizonLine.dimensions;
this.sourceXPos = [this.spritePos.x, this.spritePos.x + this.dimensions.WIDTH];
this.xPos = [];
this.yPos = 0;
this.bumpThreshold = 0.5;
this.setSourceDimensions();
this.draw()
};
HorizonLine.dimensions = {
WIDTH: 600,
HEIGHT: 12,
YPOS: 127
};
HorizonLine.prototype = {
setSourceDimensions: function() {
for (var dimension in HorizonLine.dimensions) {
if (IS_HIDPI) {
if (dimension != 'YPOS') {
this.sourceDimensions[dimension] = HorizonLine.dimensions[dimension] * 2
}
} else {
this.sourceDimensions[dimension] = HorizonLine.dimensions[dimension]
}
this.dimensions[dimension] = HorizonLine.dimensions[dimension]
}
this.xPos = [0, HorizonLine.dimensions.WIDTH];
this.yPos = HorizonLine.dimensions.YPOS
},
getRandomType: function() {
return Math.random() > this.bumpThreshold ? this.dimensions.WIDTH : 0
},
draw: function() {
this.canvasCtx.drawImage(Runner.imageSprite, this.sourceXPos[0], this.spritePos.y, this.sourceDimensions.WIDTH, this.sourceDimensions.HEIGHT, this.xPos[0], this.yPos, this.dimensions.WIDTH, this.dimensions.HEIGHT);
this.canvasCtx.drawImage(Runner.imageSprite, this.sourceXPos[1], this.spritePos.y, this.sourceDimensions.WIDTH, this.sourceDimensions.HEIGHT, this.xPos[1], this.yPos, this.dimensions.WIDTH, this.dimensions.HEIGHT)
},
updateXPos: function(pos, increment) {
var line1 = pos;
var line2 = pos == 0 ? 1 : 0;
this.xPos[line1] -= increment;
this.xPos[line2] = this.xPos[line1] + this.dimensions.WIDTH;
if (this.xPos[line1] <= -this.dimensions.WIDTH) {
this.xPos[line1] += this.dimensions.WIDTH * 2;
this.xPos[line2] = this.xPos[line1] - this.dimensions.WIDTH;
this.sourceXPos[line1] = this.getRandomType() + this.spritePos.x
}
},
update: function(deltaTime, speed) {
var increment = Math.floor(speed * (FPS / 1000) * deltaTime);
if (this.xPos[0] <= 0) {
this.updateXPos(0, increment)
} else {
this.updateXPos(1, increment)
}
this.draw()
},
reset: function() {
this.xPos[0] = 0;
this.xPos[1] = HorizonLine.dimensions.WIDTH
}
};
function Horizon(canvas, spritePos, dimensions, gapCoefficient) {
this.canvas = canvas;
this.canvasCtx = this.canvas.getContext('2d');
this.config = Horizon.config;
this.dimensions = dimensions;
this.gapCoefficient = gapCoefficient;
this.obstacles = [];
this.obstacleHistory = [];
this.horizonOffsets = [0, 0];
this.cloudFrequency = this.config.CLOUD_FREQUENCY;
this.spritePos = spritePos;
this.clouds = [];
this.cloudSpeed = this.config.BG_CLOUD_SPEED;
this.horizonLine = null;
this.init()
};
Horizon.config = {
BG_CLOUD_SPEED: 0.2,
BUMPY_THRESHOLD: .3,
CLOUD_FREQUENCY: .5,
HORIZON_HEIGHT: 16,
MAX_CLOUDS: 6
};
Horizon.prototype = {
init: function() {
this.addCloud();
this.horizonLine = new HorizonLine(this.canvas, this.spritePos.HORIZON)
},
update: function(deltaTime, currentSpeed, updateObstacles) {
this.runningTime += deltaTime;
this.horizonLine.update(deltaTime, currentSpeed);
this.updateClouds(deltaTime, currentSpeed);
if (updateObstacles) {
this.updateObstacles(deltaTime, currentSpeed)
}
},
updateClouds: function(deltaTime, speed) {
var cloudSpeed = this.cloudSpeed / 1000 * deltaTime * speed;
var numClouds = this.clouds.length;
if (numClouds) {
for (var i = numClouds - 1; i >= 0; i--) {
this.clouds[i].update(cloudSpeed)
}
var lastCloud = this.clouds[numClouds - 1];
if (numClouds < this.config.MAX_CLOUDS && (this.dimensions.WIDTH - lastCloud.xPos) > lastCloud.cloudGap && this.cloudFrequency > Math.random()) {
this.addCloud()
}
this.clouds = this.clouds.filter(function(obj) {
return !obj.remove
})
}
},
updateObstacles: function(deltaTime, currentSpeed) {
var updatedObstacles = this.obstacles.slice(0);
for (var i = 0; i < this.obstacles.length; i++) {
var obstacle = this.obstacles[i];
obstacle.update(deltaTime, currentSpeed);
if (obstacle.remove) {
updatedObstacles.shift()
}
}
this.obstacles = updatedObstacles;
if (this.obstacles.length > 0) {
var lastObstacle = this.obstacles[this.obstacles.length - 1];
if (lastObstacle && !lastObstacle.followingObstacleCreated && lastObstacle.isVisible() && (lastObstacle.xPos + lastObstacle.width + lastObstacle.gap) < this.dimensions.WIDTH) {
this.addNewObstacle(currentSpeed);
lastObstacle.followingObstacleCreated = true
}
} else {
this.addNewObstacle(currentSpeed)
}
},
addNewObstacle: function(currentSpeed) {
var obstacleTypeIndex = getRandomNum(0, Obstacle.types.length - 1);
var obstacleType = Obstacle.types[obstacleTypeIndex];
if (this.duplicateObstacleCheck(obstacleType.type) || currentSpeed < obstacleType.minSpeed) {
this.addNewObstacle(currentSpeed)
} else {
var obstacleSpritePos = this.spritePos[obstacleType.type];
this.obstacles.push(new Obstacle(this.canvasCtx, obstacleType, obstacleSpritePos, this.dimensions, this.gapCoefficient, currentSpeed));
this.obstacleHistory.unshift(obstacleType.type);
if (this.obstacleHistory.length > 1) {
this.obstacleHistory.splice(Runner.config.MAX_OBSTACLE_DUPLICATION)
}
}
},
duplicateObstacleCheck: function(nextObstacleType) {
var duplicateCount = 0;
for (var i = 0; i < this.obstacleHistory.length; i++) {
duplicateCount = this.obstacleHistory[i] == nextObstacleType ? duplicateCount + 1 : 0
}
return duplicateCount >= Runner.config.MAX_OBSTACLE_DUPLICATION
},
reset: function() {
this.obstacles = [];
this.horizonLine.reset()
},
resize: function(width, height) {
this.canvas.width = width;
this.canvas.height = height
},
addCloud: function() {
this.clouds.push(new Cloud(this.canvas, this.spritePos.CLOUD, this.dimensions.WIDTH))
}
}
})();
new Runner('.interstitial-wrapper');
