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325 lines
8.7 KiB
325 lines
8.7 KiB
<script>
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//5-25-17
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window.addEventListener("keydown", function(e)
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{
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// space and arrow keys
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if([32, 37, 38, 39, 40].indexOf(e.keyCode) > -1)
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{
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e.preventDefault();
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}
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}, false);
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window.onload = function()
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{
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var canvas = document.getElementById("canvas");
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var c = canvas.getContext('2d');
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c.fillStyle= "black";
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c.fillRect(0,0, canvas.width, canvas.height);
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};
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//entire game
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function playBF()
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{
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var animate = window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || function (callback)
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{
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window.setTimeout(callback, 1000 / 60)
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};
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var canvas = document.getElementById("canvas");
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var width = 700;
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var height = 700;
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canvas.style.textAligh = 'center';
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var context = canvas.getContext('2d');
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var keysDown = {};
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//player variables;
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var score = 0;
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var alive = true;
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//usefull function
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function getRandomIntInclusive(min, max)
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{
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min = Math.ceil(min);
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max = Math.floor(max);
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return Math.floor(Math.random() * (max - min + 1)) + min;
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}
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//objects
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var Player = function(x,y)
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{
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this.x = 350
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this.y = 650;
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this.width = 10;
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this.height = 10;
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this.speed = 4;
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this.facing = 40;
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this.updateDirection = function(key)
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{
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facing = key;
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}
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this.render = function()
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{
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context.fillStyle = "rgba(255, 255, 255, 1)"; //white
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context.fillRect(this.x, this.y, this.width, this.height);
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}
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this.move = function()
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{
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for (var key in keysDown)
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{
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var value = Number(key);
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if(value == 37) //left
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{
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this.x = this.x - this.speed;
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}
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else if(value == 39)
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{
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this.x = this.x + this.speed;
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}
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}
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//collisions
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for(i = 0; i < astroids.length; i++)
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{
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if(astroids[i] != -1)
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{
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bb = astroids[i];
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//if(Math.abs(bb.x - p.x) <= bb.width)
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if(p.x > bb.x && p.x < bb.x + bb.width || p.x + p.width < bb.x + bb.width && p.x + p.width > bb.x)
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{
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if(p.y > bb.y && p.y < bb.y + bb.height || p.y + p.height < bb.y + bb.height && p.y + p.height > bb.y)
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{
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alive = false;
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bb = -1;
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}
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}
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}
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}
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if(this.x < 0)
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{
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this.x += this.speed;
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}
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else if(this.x > width)
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{
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this.x -= this.speed;
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}
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}
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}
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//player object
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var p = new Player(350, 850);
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//object that falls from the sky
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var Astroid = function(size)
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{
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this.width = 25;
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this.height = 25;
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this.dir = getRandomIntInclusive(0, 360);
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this.size = size;
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this.x = getRandomIntInclusive(0, width);
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this.y = -this.height;
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this.speed = 4;
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this.render = function()
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{
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context.fillStyle = "rgba(255, 255, 255 , 1)"; //green
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context.beginPath();
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context.arc(this.x,this.y,40,0,2*Math.PI);
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context.fill();
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}
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this.move = function()
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{
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this.y += this.speed;
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if(this.y> height)
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{
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//remove bamboo from array
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score++;
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return true;
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}
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}
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}
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var astroids = [];
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//draws all the objects
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var render = function()
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{
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context.fillStyle = "rgba(0, 0,0 ,1)";
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context.fillRect(0,0, width, height);
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context.fillStyle = "rgba(255, 255,255 ,1)";
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context.font = "20px Georgia";
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context.fillText("Score: " + score, 10, 25);
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p.render();
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for(i= 0; i < astroids.length; i++)
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{
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if(astroids[i] != -1)
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{
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astroids[i].render();
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}
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}
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//console.log('render was called');
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//context.fillStyle = "rgba(0, 128, 0 ,1)"; //green
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//context.fillRect(0, 0, 700, 700);
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//console.log(context);
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}
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var update = function()
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{
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addAstroid();
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p.move();
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for (i = 0; i< astroids.length; i++)
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{
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if(astroids[i] != -1)
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{
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if(astroids[i].move())
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{
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astroids[i] = -1;
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}
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}
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}
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}
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var count = 0;
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var limit = 25;
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var addAstroid = function()
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{
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count++;
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if(count == limit)
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{
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count = 0;
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var bnew = true;
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for(i = 0; i < astroids.length; i++)
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{
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if(astroids[i] == -1)
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{
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astroids[i] = new Astroid();
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bnew = false;
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}
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}
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if(bnew)
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{
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astroids.push(new Astroid());
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}
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if(limit > 10)
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{
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limit --;
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}
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}
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}
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var sent;
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var tic = function()
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{
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//console.log('tic was called');
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if(alive)
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{
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update();
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render();
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}
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else
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{
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if(!sent)
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{
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context.fillStyle = "rgba(0, 0,0 ,1)";
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context.fillRect(0,0, width, height);
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context.fillStyle = "rgba(255, 255,255 ,1)";
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context.font = "20px Georgia";
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context.fillText("You died with a score of: " + score, 250, 325);
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//document.body.innerHTML += '<form id="dynForm" action="insertScore.php" method="post"><input type="hidden" name="game_new_score" value=true><input type="hidden" name="game" value=1><input type="hidden" name="user_id_score" value=<?php echo $_SESSION['user_id']; ?>><input type="hidden" name="score_validate" value=' + score + '></form>';
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//document.getElementById("dynForm").submit();
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//sent = true;
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}
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}
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animate(tic);
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}
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window.addEventListener("keydown", function (event)
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{
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if(event.keyCode >=37 && event.keyCode <=40)
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{
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p.facing = event.keyCode;
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}
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keysDown[event.keyCode] = true;
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});
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window.addEventListener("keyup", function (event)
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{
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delete keysDown[event.keyCode];
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});
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//tic();
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animate(tic);
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}
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</script>
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<div><canvas id="canvas" width="700" height="700"></canvas></div>
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<div><input type="submit" name="play" value="Play Game" onclick="this.blur();playBF()"/></div>
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