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free.js
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free.js
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"use strict";
var first_rod = document.getElementById("rod-one");
var second_rod = document.getElementById("rod-two");
var ball = document.getElementById("ball");
var current_timeout_is_running = false;
var current_score =
{
first: 0,
second: 0,
}
var action =
{
loosing_side: "",
lost: false
}
function centeralise_element(element)
{
element.style.left = ((document.documentElement.clientWidth / 2) - (element.offsetWidth / 2)).toString() + "px";
element.style.left = ((document.documentElement.clientWidth / 2) - (element.offsetWidth / 2)).toString() + "px";
if (element == ball)
{
if (action.lost)
{
if (action.loosing_side == "first")
{
ball.style.top = (first_rod.clientHeight+5).toString() + "px";
}
else
{
ball.style.top = (document.documentElement.clientHeight - second_rod.clientHeight - ball.clientHeight-5).toString() + "px";
}
}
else
element.style.top = (document.documentElement.clientHeight / 2).toString() + "px";
}
}
function add_event_listener_to_rods()
{
window.addEventListener("keydown", function (event)
{
let code = event.keyCode;
if (code == 68)
{
let left_numeric = parseInt(
first_rod.style.left.substring(0, first_rod.style.left.length - 2)
);
left_numeric += 20;
if (left_numeric + first_rod.offsetWidth > document.documentElement.clientWidth)
{
left_numeric = document.documentElement.clientWidth - first_rod.offsetWidth;
}
first_rod.style.left = left_numeric.toString() + "px";
second_rod.style.left = left_numeric.toString() + "px";
} else if (code == 65)
{
let left_numeric = parseInt(
first_rod.style.left.substring(0, first_rod.style.left.length - 2)
);
left_numeric -= 20;
if (left_numeric < 0)
{
left_numeric = 0;
}
first_rod.style.left = left_numeric.toString() + "px";
second_rod.style.left = left_numeric.toString() + "px";
}
});
}
function touched_upper_bar()
{
let ball_top_numerical = ball.getBoundingClientRect().top;
let ball_left_numerical = ball.getBoundingClientRect().left;
let bar_left_numerical = parseInt(first_rod.style.left.substring(0, first_rod.style.left.length - 2));
if ((ball_top_numerical <= first_rod.clientHeight) && (ball_left_numerical + (ball.clientWidth / 2) > bar_left_numerical) && (ball_left_numerical + (ball.clientWidth / 2) < bar_left_numerical + first_rod.clientWidth))
{
if (!current_timeout_is_running)
{
current_timeout_is_running = true;
setTimeout(function ()
{
current_score.first++;
current_timeout_is_running = false;
console.log("first", current_score.first);
}, 200);
}
return true;
}
return false;
}
function touched_lower_bar()
{
let ball_top_numerical = ball.getBoundingClientRect().top;
let ball_left_numerical = ball.getBoundingClientRect().left;
let bar_left_numerical = parseInt(second_rod.style.left.substring(0, second_rod.style.left.length - 2));
if ((ball_top_numerical + ball.clientHeight + second_rod.clientHeight >= document.documentElement.clientHeight) && (ball_left_numerical + (ball.clientWidth / 2) > bar_left_numerical) && (ball_left_numerical + (ball.clientWidth / 2) < bar_left_numerical + second_rod.clientWidth))
{
if (!current_timeout_is_running)
{
current_timeout_is_running = true;
setTimeout(function ()
{
current_score.second++;
current_timeout_is_running = false;
console.log("second", current_score.second);
}, 200);
}
return true;
}
return false;
}
function set_interval_for_ball()
{
let interval_id = setInterval(function ()
{
let numeric_left = ball.getBoundingClientRect().left;
let numeric_top = ball.getBoundingClientRect().top;
if (numeric_left <= 0)//hit left
{
let class_present = ball.classList[0];
if (class_present == "animate-top-left")
{
ball.classList.remove(class_present);
ball.classList.add("animate-top-right");
}
else if (class_present == "animate-bottom-left")
{
ball.classList.remove(class_present);
ball.classList.add("animate-bottom-right");
}
}
else if (numeric_left + ball.offsetWidth >= document.documentElement.clientWidth)//hit right
{
let class_present = ball.classList[0];
if (class_present == "animate-top-right")
{
ball.classList.remove(class_present);
ball.classList.add("animate-top-left");
}
else if (class_present == "animate-bottom-right")
{
ball.classList.remove(class_present);
ball.classList.add("animate-bottom-left");
}
}
else if (numeric_top <= 0 || numeric_top + ball.offsetHeight >= document.documentElement.clientHeight)//game over
{
ball.classList.remove(ball.classList[0])
if (numeric_top <= 0)
{
action.loosing_side = "first";
action.lost = true;
}
else if (numeric_top + ball.offsetHeight >= document.documentElement.clientHeight)
{
action.loosing_side = "second";
action.lost = true;
}
centeralise_element(ball);
centeralise_element(first_rod);
centeralise_element(second_rod);
alert('Game Over');
clearInterval(interval_id);
if (current_score.first > localStorage.getItem('first'))
{
localStorage.setItem('first', current_score.first);
}
if (current_score.second > localStorage.getItem('second'))
{
localStorage.setItem('second', current_score.second);
}
current_score.first=0;
current_score.second=0;
show_score();
}
else if (touched_lower_bar())//touched lower bar
{
let class_present = ball.classList[0];
if (class_present == "animate-bottom-right")
{
ball.classList.remove(class_present);
ball.classList.add("animate-top-right");
}
else if (class_present == "animate-bottom-left")
{
ball.classList.remove(class_present);
ball.classList.add("animate-top-left");
}
}
else if (touched_upper_bar())//touched upper bar
{
let class_present = ball.classList[0];
if (class_present == "animate-top-right")
{
ball.classList.remove(class_present);
ball.classList.add("animate-bottom-right");
}
else if (class_present == "animate-top-left")
{
ball.classList.remove(class_present);
ball.classList.add("animate-bottom-left");
}
}
}, 1)
}
function show_score()
{
if (localStorage.getItem('first') == null)
{
localStorage.setItem('first', 0);
localStorage.setItem('second', 0);
window.alert("This is your first time");
}
else
{
window.alert("Rod 1 has a maximum score of " + localStorage.getItem('first').toString() + "\n" + "Rod 2 has a maximum score of " + localStorage.getItem('second'));
}
}
centeralise_element(first_rod);
centeralise_element(second_rod);
centeralise_element(ball);
show_score();
add_event_listener_to_rods();
set_interval_for_ball();
document.addEventListener('keydown', function (event)
{
if (event.keyCode == 13)
{
if (action.lost)
{
if (action.loosing_side == "first")
{
ball.classList.add('animate-bottom-right');
}
else
{
ball.classList.add('animate-top-right');
}
}
else
ball.classList.add('animate-bottom-right');
set_interval_for_ball()
}
})