物理エンジン使ってみる

HelloWorldScene.cpp

#include "HelloWorldScene.h"

USING_NS_CC;

Scene* HelloWorld::createScene()
{
	auto scene = Scene::createWithPhysics();
	auto layer = HelloWorld::create();
	scene->addChild(layer);

	// 重力を設定
	PhysicsWorld* world = scene->getPhysicsWorld();
	Vect gravity;
	gravity.setPoint(0, -300);
	world->setGravity(gravity);
	world->setDebugDrawMask(PhysicsWorld::DEBUGDRAW_ALL);

	Size winSize = Director::getInstance()->getWinSize();

	// 壁下
	Sprite* bottom = Sprite::create("wall_yoko.png");
	bottom->setPosition(Point(winSize.width / 2, bottom->getContentSize().height / 2));
	PhysicsBody* bottomPb = PhysicsBody::createBox(bottom->getContentSize());
	bottomPb->setDynamic(false);
	bottom->setPhysicsBody(bottomPb);
	layer->addChild(bottom);

	// cocos2dxちゃん追加
	Sprite* c2dx = Sprite::create("2dx.png");
	c2dx->setPosition(Point(winSize.width / 2, winSize.height / 2));
	PhysicsBody* c2dxPb = PhysicsBody::createBox(c2dx->getContentSize());
	c2dxPb->setMass(1.0f); 
	c2dx->setPhysicsBody(c2dxPb);
	layer->addChild(c2dx);

    return scene;
}