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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <title>Document</title>
- <script type="text/javascript">
- document.addEventListener("DOMContentLoaded", function(){
- let canvas = document.getElementById('canvasId');
- let canvasId = canvas.getContext("2d");
- let mouse;
- let points = [];
- canvas.addEventListener('click', function(evt){
- mouse = mouse_player1(evt, canvas);
- let newPointA = new Point(mouse.x, mouse.y);
- points.push(newPointA);
- let newPointB = new Point(canvas.width - mouse.x, mouse.y);
- points.push(newPointB);
- let newPointC = new Point(canvas.width - mouse.x, canvas.height - mouse.y);
- points.push(newPointC);
- let newPointD = new Point(mouse.x, canvas.heignt - mouse.y);
- points.push(newPointD);
- });
- });
- class Point{
- constructor(x, y){
- this.x = x;
- this.y = y;
- }
- }
- const mouse_player1 = (evt, canvas) => {
- var rect = canvas.getBoundingClientRect(); // взима позицията на платното в документа, в случай, че то не започва от горния ляв ъгъл
- var mouseX = evt.clientX - rect.left; // позицията на курсора по хоризонтала
- var mouseY = evt.clientY - rect.top; // позиията на курсора по вертикала
- return {
- x: mouseX,
- y: mouseY,
- } // фунцкията връша два параметъра, x и y
- }
- </script>
- <style>
- canvas{
- background-color: black;
- }
- </style>
- </head>
- <body style="margin:0px;">
- <canvas width="800" height="800" id="canvasId"></canvas>
- </body>
- </html>
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