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