Simple website with some JavaScript games.
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<script>
//5-25-17
//Jrtechs is the boss man
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 = 800;
var height = 800;
canvas.style.textAligh = 'center';
var context = canvas.getContext('2d');
var bullets = [];
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
//
//bullet class
var Bullet = function(dir, x, y)
{
//console.log(dir + " " + x + " " + y);
this.dir = dir;
this.x = x;
this.y = y;
this.speed = 5;
this.width = 10;
this.height =10;
this.move = function()
{
//console.log("move");
this.x += this.speed * Math.sin(this.dir);
this.y += this.speed * Math.cos(this.dir);
}
this.render = function()
{
context.fillStyle = "rgba(255, 0, 0 , 1)"; //green
context.beginPath();
context.arc(this.x,this.y,this.width,0,2*Math.PI);
context.fill();
//console.log(this.x);
}
}
//array of bullets
//bullets[0] = new Bullet(Math.PI, 100, 100);
var Player = function(x,y)
{
this.x = width/2;
this.y = height/2;
this.width = 10;
this.height = 10;
this.speed = 4;
this.dir = Math.PI;
this.dirSpeed = 10;
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.dir += this.dirSpeed * Math.PI / 360;
}
else if(value == 39)
{
this.dir -= this.dirSpeed * Math.PI / 360;
}
else if(value == 38) // up
{
this.x += this.speed * Math.sin(this.dir);
this.y += this.speed * Math.cos(this.dir);
}
else if(value == 40) //down
{
this.x -= this.speed * Math.sin(this.dir);
this.y -= this.speed * Math.cos(this.dir);
}
else if(value == 32) //shoot
{
this.shoot();
}
}
//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.width)
this.x -= this.speed;
if(this.y < 0)
this.y += this.speed;
else if(this.y > height)
this.y -= this.speed;
}
this.shoot = function()
{
var dimmed = false;
for(i = 0; i> bullets.length; i++)
{
if(bullets[i] == -1)
{
dimmed = true;
bullets[i] = new Bullet(this.dir, this.x, this.y);
}
}
if(dimmed == false)
bullets.push(new Bullet(this.dir, this.x, this.y));
}
}
//player object
var p = new Player(350, 850);
//object that falls from the sky
var Astroid = function(size)
{
this.width = 15;
this.height = 15;
this.dir = 2 * Math.PI * Math.random()
this.size = size;
var temp = getRandomIntInclusive(0, width);
var temp2 = getRandomIntInclusive(1, 4);
if(temp2 == 1)
{
this.x = temp;
this.y = 0;
}
else if(temp2 == 2)
{
this.x = width;
this.y = temp;
}
else if(temp2 == 3)
{
this.y = height;
this.x = temp;
}
else
{
this.y = temp;
this.x = 0;
}
this.speed = 2;
this.render = function()
{
context.fillStyle = "rgba(255, 255, 255 , 1)"; //green
context.beginPath();
context.arc(this.x,this.y,this.width,0,2*Math.PI);
context.fill();
}
this.move = function()
{
this.y += this.speed * Math.sin(this.dir);
this.x += this.speed *Math.cos(this.dir);
//collision
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();
for (var i = bullets.length; i--; )
if(bullets[i] != -1)
bullets[i].render();
}
var update = function()
{
addAstroid();
p.move();
var halp = bullets.lenght
//console.log(halp);
//for (b = 0; b < bullets.lenght; b++)
//var b;
for (var i = bullets.length; i--; )
{
console.log("b");
if(bullets[i] != -1)
{
if(bullets[i].move())
{
b = -1;
}
}
}
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);
}
}
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>