100 : Node 100
Balthazar:
xxxx
script.js:
// Handle ball movement and collision.
function update_ball() {
_ball.x += _ball.velocity_x;
_ball.y += _ball.velocity_y;
// Bounce off horizontal walls.
if (_ball.y <= 0) {
_ball.velocity_y *= -1;
}
if (_ball.y >= _game.height - _ball.height) {
_ball.velocity_y *= -1;
}
// Bounce off vertical walls.
if (_ball.x <= 0) {
_ball.velocity_x *= -1;
}
if (_ball.x >= _game.width - _ball.width) {
_ball.velocity_x *= -1;
}
// Bounce off paddles.
var ball_speed2 = (_game.ball_speed / 2.0)
if (_ball.velocity_x < 0
&& _ball.x + ball_speed2 > _player1.x + _player1.width
&& _ball.x - ball_speed2 <= _player1.x + _player1.width
&& _ball.y + _ball.height >= _player1.y
&& _ball.y <= _player1.y + _player1.height) {
_ball.velocity_x = _game.ball_speed;
}
if (_ball.velocity_x > 0
&& _ball.x + _ball.width + ball_speed2 > _player2.x
&& _ball.x + _ball.width - ball_speed2 <= _player2.x
&& _ball.y + _ball.height >= _player2.y
&& _ball.y <= _player2.y + _player2.height) {
_ball.velocity_x = -_game.ball_speed;
}
}
// Bounce off paddles.
var ball_speed2 = (_game.ball_speed / 2.0)
if (_ball.velocity_x < 0
&& _ball.x + ball_speed2 > _player1.x + _player1.width
&& _ball.x - ball_speed2 <= _player1.x + _player1.width
&& _ball.y + _ball.height >= _player1.y
&& _ball.y <= _player1.y + _player1.height) {
_ball.velocity_x = _game.ball_speed;
}
if (_ball.velocity_x > 0
&& _ball.x + _ball.width + ball_speed2 > _player2.x
&& _ball.x + _ball.width - ball_speed2 <= _player2.x
&& _ball.y + _ball.height >= _player2.y
&& _ball.y <= _player2.y + _player2.height) {
_ball.velocity_x = -_game.ball_speed;
}
}