jrtechs-Club-Panda/games/astroids.html

<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 = 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();
                }
            }
            //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();
            
            
            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);


                    //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>