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| window.onload = function() {
window.requestAnimationFrame = window.requestAnimationFrame
|| window.mozRequestAnimationFrame
|| window.webkitRequestAnimationFrame
|| window.msRequestAnimationFrame
|| function(f){return setTimeout(f, 1000/60)}
window.cancelAnimationFrame = window.cancelAnimationFrame
|| window.mozCancelAnimationFrame
|| function(requestID){clearTimeout(requestID)} //fall back
var canvas = document.getElementById('bezier');
var context = canvas.getContext('2d');
var formula = {};
formula.getPointOnLine = function(shift,points){
return [
(points[1][0] - points[0][0]) * (shift / 100) + points[0][0],
(points[1][1] - points[0][1]) * (shift / 100) + points[0][1]
];
};
formula.getPointOnCurve = function(shift,points){
if(points.length == 2){
return this.getPointOnLine(shift,points);
}
var pointsPP = [];
for(var i = 1;i < points.length;i++){
pointsPP.push(this.getPointOnLine(shift,[
points[i - 1],
points[i]
]));
}
return this.getPointOnCurve(shift,pointsPP);
};
function getCoordinates()
{
var max = 650;
var min = -150;
return Math.floor(Math.random() * (max - min + 1) + min);
}
var score = 0;
var life = 3;
var myReq;
var flag = true;
var secondFlag = false;
var started = false;
var running = false;
function pushScore(scores)
{
var value = document.getElementById("sixthTd");
value.innerHTML = "Score: " + scores;
}
function pushLife(lifes)
{
var value = document.getElementById("fourthTd");
value.innerHTML = "Life: " + lifes;
}
var picture = new Image();
picture.src = "../images/Mosca_ON.gif";
var badPicture = new Image();
badPicture.src = "../images/Mosca_OFF.gif";
var points = [];
function generateCoords()
{
var valueXPoint = Math.floor(Math.random() * (700 - 100 + 1) + 100);
var valueYPoint = Math.floor(Math.random() * (700 - 100 + 1) + 100);
points = [
[valueXPoint, valueYPoint],
[getCoordinates(), getCoordinates()],
[getCoordinates(), getCoordinates()],
[getCoordinates(), getCoordinates()],
[getCoordinates(), getCoordinates()],
[getCoordinates(), getCoordinates()],
[getCoordinates(), getCoordinates()],
[getCoordinates(), getCoordinates()],
[getCoordinates(), getCoordinates()],
[getCoordinates(), getCoordinates()],
[getCoordinates(), getCoordinates()],
[getCoordinates(), getCoordinates()],
[getCoordinates(), getCoordinates()],
[getCoordinates(), getCoordinates()],
[valueXPoint, valueYPoint]
];
}
var shift = 0;
var step = 1;
function getMousePos(evt)
{
//set and store..
priorEvt = evt = evt || priorEvt;
//get the bounding rectangle
var rect = canvas.getBoundingClientRect();
//lastly, return the x and y coordinates
if (evt)
return {
x: evt.clientX - rect.left,
y: evt.clientY - rect.top
};
return {
x: 0,
y: 0
};
}
function stop()
{
running = false;
started = false;
cancelAnimationFrame(myReq);
}
function mainLoop(timestamp) {
if (timestamp >= 2500.0)
{
stop();
return;
}
myReq = requestAnimationFrame(mainLoop);
}
function start()
{
if(!started)
{
started = true;
generateCoords();
myReq = requestAnimationFrame(function (timestamp){
draw(1);
running = true;
myReq = requestAnimationFrame(mainLoop);
});
}
}
function newGame()
{
stop();
secondFlag = false;
flag = true;
start();
}
function draw(timestamp)
{
context.beginPath();
if(shift > 100){
shift = 100;
}
for(var i = 0; i <= shift && flag; i += step)
{
secondFlag = true;
var coord = formula.getPointOnCurve(i, points);
context.clearRect(0, 0, 1000, 1000);
context.drawImage(picture, coord[0], coord[1]);
canvas.addEventListener('mousemove', function(evt)
{
var mousePos = getMousePos(evt);
if (Math.abs(mousePos.x - coord[0]) <= 7 && Math.abs(mousePos.y - coord[1]) <= 7)
{
cancelAnimationFrame(myReq);
context.clearRect(0, 0, 1000, 1000);
context.drawImage(badPicture, coord[0], coord[1]);
pushScore(score++);
flag = false;
}
});
}
if (flag == false)
newGame();
context.stroke();
context.closePath();
if(shift <= 100){
shift += step;
}
requestAnimationFrame(draw);
console.log(timestamp);
}
start();
pushScore(score);
pushLife(life);
} |
(
