Interaktywność / Idea Interactive

Interaktywność / Idea Interactive

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Przeciągnięcia

Posuń czerwoną modelkę

<style>
body {
background-color: rgb(255,255,255);
}
img {
mix-blend-mode: difference;
cursor:pointer;
position: absolute;
}
#b, #g {
top: 160px;
}
#r {
left: 140px;
}
#g {
left: 100px;
}
#b {
left: 180px;
}
</style>
<div>

<img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjLAmwQaL_Z7l6X9s-wmDuqr1bC1zJdBDdeXCPepwPWxm-oekPUx0yAoAF-2pjHm3l6pH281KG24vK80oJB9KU46MuOtXdy4Xg8f898avUjCuiy3subOVBZIzQFjgpMZkTdeJMmR8ScPA4/s1600/r.png" id="r">
  <img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQuKzMW9CnYd-anGBaKvfDoz4ftZQMuut27rJ27OTriEYI_E31gS9jrsab1ESHPd9_uvSA7mIV70CTx33xh6muWloypGtArNfS8tTWcmhxjpL8sZs3WAIg4pWgi2LVTIt7AeXwxh8G_7Q/s1600/g.png" id="g">
  <img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhkkN7HwuJdkXIGV9CCYUyQxedQ4IuXWNNbxmtUQ055qoPNzRdH8_FRNCLKj18COcgyu6ajqcybfHuDIyMYSyUTjylZSq1OHtOS2lnypAcXMJB8QJdYwMAYg5QB4u7fXZwanqR7XaxB-nk/s1600/b.png" id="b">
  </div>
  <script>
    r.onmousedown = function(event) {
      r.style.position = 'absolute';
      r.style.zIndex = 1000;
      document.body.appendChild(r);
      moveAt(event.pageX, event.pageY);
      function moveAt(pageX, pageY) {
        r.style.left = pageX - r.offsetWidth / 2 + 'px';
        r.style.top = pageY - r.offsetHeight / 2 + 'px';
      }
      function onMouseMove(event) {
        moveAt(event.pageX, event.pageY);
      }
      document.addEventListener('mousemove', onMouseMove);
      r.onmouseup = function() {
        document.removeEventListener('mousemove', onMouseMove);
        r.onmouseup = null;
      };
    };
    r.ondragstart = function() {
      return false;
    };
  </script>

Gry

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <title></title>
    <style>
* { padding: 0; margin: 0; }
h1 {text-align:center;padding: 30px;margin: 7px;background: #eee;}
h2 {text-align:center;padding: 10px;margin: 7px;background: #eee;}
canvas { background: #eee; display: block; margin: 0 auto; }</style>
</head>
<body>
<h1>Breakout</h1>

<canvas id="myCanvas" width="480" height="320"></canvas>

<script>
    var canvas = document.getElementById("myCanvas");
    var ctx = canvas.getContext("2d");
    var ballRadius = 10;
    var x = canvas.width/2;
    var y = canvas.height-30;
    var dx = 2;
    var dy = -2;
    var paddleHeight = 10;
    var paddleWidth = 75;
    var paddleX = (canvas.width-paddleWidth)/2;
    var rightPressed = false;
    var leftPressed = false;
    var brickRowCount = 5;
    var brickColumnCount = 3;
    var brickWidth = 75;
    var brickHeight = 20;
    var brickPadding = 10;
    var brickOffsetTop = 30;
    var brickOffsetLeft = 30;
    var score = 0;
    var lives = 3;
    var bricks = [];
    for(c=0; c<brickColumnCount; c++) {
        bricks[c] = [];
        for(r=0; r<brickRowCount; r++) {
            bricks[c][r] = { x: 0, y: 0, status: 1 };
        }
    }
    document.addEventListener("keydown", keyDownHandler, false);
    document.addEventListener("keyup", keyUpHandler, false);
    document.addEventListener("mousemove", mouseMoveHandler, false);
    function keyDownHandler(e) {
        if(e.keyCode == 39) {
            rightPressed = true;
        }
        else if(e.keyCode == 37) {
            leftPressed = true;
        }
    }
    function keyUpHandler(e) {
        if(e.keyCode == 39) {
            rightPressed = false;
        }
        else if(e.keyCode == 37) {
            leftPressed = false;
        }
    }
    function mouseMoveHandler(e) {
        var relativeX = e.clientX - canvas.offsetLeft;
        if(relativeX > 0 && relativeX < canvas.width) {
            paddleX = relativeX - paddleWidth/2;
        }
    }
    function collisionDetection() {
        for(c=0; c<brickColumnCount; c++) {
            for(r=0; r<brickRowCount; r++) {
                var b = bricks[c][r];
                if(b.status == 1) {
                    if(x > b.x && x < b.x+brickWidth && y > b.y && y < b.y+brickHeight) {
                        dy = -dy;
                        b.status = 0;
                        score++;
                        if(score == brickRowCount*brickColumnCount) {
//                            alert("YOU WIN, CONGRATS!");
                            document.location.reload();
                        }
                    }
                }
            }
        }
    }
    function drawBall() {
        ctx.beginPath();
        ctx.arc(x, y, ballRadius, 0, Math.PI*2);
        ctx.fillStyle = "#0095DD";
        ctx.fill();
        ctx.closePath();
    }
    function drawPaddle() {
        ctx.beginPath();
        ctx.rect(paddleX, canvas.height-paddleHeight, paddleWidth, paddleHeight);
        ctx.fillStyle = "#0095DD";
        ctx.fill();
        ctx.closePath();
    }
    function drawBricks() {
        for(c=0; c<brickColumnCount; c++) {
            for(r=0; r<brickRowCount; r++) {
                if(bricks[c][r].status == 1) {
                    var brickX = (r*(brickWidth+brickPadding))+brickOffsetLeft;
                    var brickY = (c*(brickHeight+brickPadding))+brickOffsetTop;
                    bricks[c][r].x = brickX;
                    bricks[c][r].y = brickY;
                    ctx.beginPath();
                    ctx.rect(brickX, brickY, brickWidth, brickHeight);
                    ctx.fillStyle = "#0095DD";
                    ctx.fill();
                    ctx.closePath();
                }
            }
        }
    }
    function drawScore() {
        ctx.font = "16px Arial";
        ctx.fillStyle = "#0095DD";
        ctx.fillText("Score: "+score, 8, 20);
    }
    function drawLives() {
        ctx.font = "16px Arial";
        ctx.fillStyle = "#0095DD";
        ctx.fillText("Lives: "+lives, canvas.width-65, 20);
    }
    function draw() {
        ctx.clearRect(0, 0, canvas.width, canvas.height);
        drawBricks();
        drawBall();
        drawPaddle();
        drawScore();
        drawLives();
        collisionDetection();
        if(x + dx > canvas.width-ballRadius || x + dx < ballRadius) {
            dx = -dx;
        }
        if(y + dy < ballRadius) {
            dy = -dy;
        }
        else if(y + dy > canvas.height-ballRadius) {
            if(x > paddleX && x < paddleX + paddleWidth) {
                dy = -dy;
            }
            else {
                lives--;
                if(!lives) {
//                    alert("GAME OVER");
                    document.location.reload();
                }
                else {
                    x = canvas.width/2;
                    y = canvas.height-30;
                    dx = 3;
                    dy = -3;
                    paddleX = (canvas.width-paddleWidth)/2;
                }
            }
        }
        if(rightPressed && paddleX < canvas.width-paddleWidth) {
            paddleX += 7;
        }
        else if(leftPressed && paddleX > 0) {
            paddleX -= 7;
        }
        x += dx;
        y += dy;
        requestAnimationFrame(draw);
    }
    draw();
</script>
<h2>1976-05-13 Atari</h2>
</body>
</html>

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