// Generated by CoffeeScript 1.4.0

var Handler;

Handler = {

scriptIntervalID: null,

delay: 60,

stop: function() {

if (Handler.scriptIntervalID) {

return clearInterval(Handler.scriptIntervalID);

}

},

start: function() {

return Handler.scriptIntervalID = setInterval(Handler.main, Handler.delay);

},

main: function() {

var bumpedYoba, currentYoba, _i, _len, _ref, _ref1;

canvas.clear();

_ref = Yoba.getAllYobas();

for (_i = 0, _len = _ref.length; _i < _len; _i++) {

currentYoba = _ref[_i];

if (currentYoba.atRightBorder()) {

currentYoba.speed = -Math.abs(currentYoba.speed);

} else if (currentYoba.atLeftBorder()) {

currentYoba.speed = +Math.abs(currentYoba.speed);

}

bumpedYoba = currentYoba.getBumpedYoba();

if (bumpedYoba) {

_ref1 = Handler.getSpeedsAfterBump(currentYoba.mass, currentYoba.speed, bumpedYoba.mass, bumpedYoba.speed), currentYoba.speed = _ref1[0], bumpedYoba.speed = _ref1[1];

currentYoba.startSpeek();

bumpedYoba.startSpeek();

}

currentYoba.continueSpeek();

currentYoba.speed -= Handler.getFrictionalAcceleration(currentYoba.radius, currentYoba.mass, currentYoba.speed);

currentYoba.angle = Handler.getNewAngle(currentYoba.angle, currentYoba.radius, currentYoba.speed);

currentYoba.position += Math.round(currentYoba.speed);

currentYoba.redraw();

}

return Yoba.stopScriptIfAllStopped();

},

getSpeedsAfterBump: function(m1, v1, m2, v2) {

return [((m1 - m2) * v1 + 2 * m2 * v2) / (m1 + m2), (2 * m1 * v1 + (m2 - m1) * v2) / (m1 + m2)];

},

getFrictionalAcceleration: function(R, M, speed) {

var N, a, f;

f = 0.3;

N = 9.8 * M;

a = (N * (f / R)) / R;

return (speed > 0 ? a : -a);

},

getNewAngle: function(a0, R, speed) {

var dFi, fi;

dFi = Math.round(speed) / R;

fi = a0 + dFi;

return 2 * Math.PI + fi % (4 * Math.PI);

}

};