plunkerで liquidfun その11

概要

plunkerで liquidfunやってみた。
繰り返しのサンプル見つけたので、やってみた。

写真

サンプルコード

function TestBullet() {
	var bd = new b2BodyDef();
	bd.position.Set(0, 0);
	var body = world.CreateBody(bd);
	var edge = new b2EdgeShape();
	edge.Set(new b2Vec2(-10, 0), new b2Vec2(10, 0));
	body.CreateFixtureFromShape(edge, 0);
	var shape = new b2PolygonShape();
	shape.SetAsBoxXYCenterAngle(0.2, 1.0, new b2Vec2(0.5, 1), 0);
	body.CreateFixtureFromShape(shape, 0)
	bd = new b2BodyDef();
	bd.type = b2_dynamicBody;
	bd.position.Set(0, 4);
	var box = new b2PolygonShape();
	box.SetAsBoxXY(2, 0.1);
	this.body = world.CreateBody(bd);
	this.body.CreateFixtureFromShape(box, 1);
	box = new b2PolygonShape();
	box.SetAsBoxXY(0.25, 0.25);
	bd.position.Set(0.20352793, 10);
	bd.bullet = true;
	this.bullet = world.CreateBody(bd);
	this.bullet.CreateFixtureFromShape(box, 100);
	this.bullet.SetLinearVelocity(new b2Vec2(0, -50));
	this.step = 0;
}
TestBullet.prototype.Step = function() {
	Step();
	if (this.step % 360 === 0) 
	{
		this.body.SetTransform(new b2Vec2(0, 4), 0);
		this.body.SetLinearVelocity(new b2Vec2(0, 0));
		this.body.SetAngularVelocity(0);
		var x = RandomFloat(-1.0, 1.0);
		this.bullet.SetTransform(new b2Vec2(x, 19), 0);
		this.bullet.SetLinearVelocity(new b2Vec2(0, -50));
		this.bullet.SetAngularVelocity(0);
	}
	this.step += 1;
}

成果物

以上。