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C++ PhysicsComponent::getTransform方法代码示例

本文整理汇总了C++中PhysicsComponent::getTransform方法的典型用法代码示例。如果您正苦于以下问题:C++ PhysicsComponent::getTransform方法的具体用法?C++ PhysicsComponent::getTransform怎么用?C++ PhysicsComponent::getTransform使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在PhysicsComponent的用法示例。


在下文中一共展示了PhysicsComponent::getTransform方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: OnHierarchyChange

	void PhysicsComponent::OnHierarchyChange()
	{
		// Clear out old data
		if(absoluteCShape != nullptr)
			delete absoluteCShape;

		absoluteMass = mass;

		if(children.size() == 0)
		{
			absoluteCOG = cog;
			absoluteCShape = cShape;
		}
		else
		{
			btCompoundShape* compAbsShape = new btCompoundShape();
			absoluteCShape = compAbsShape;
			compAbsShape->addChildShape(btTransform(), cShape);

			for(auto it = children.begin(); it != children.end(); ++it)
			{
				PhysicsComponent* curr = static_cast<PhysicsComponent*>(*it);
				compAbsShape->addChildShape(curr->getTransform(), curr->absoluteCShape);
				absoluteMass += curr->absoluteMass;
			}

			absoluteCOG.setValue(0.0f, 0.0f, 0.0f);
			absoluteCOG += cog * (mass / absoluteMass);

			for(auto it = children.begin(); it != children.end(); ++it)
			{
				PhysicsComponent* curr = static_cast<PhysicsComponent*>(*it);
				absoluteCOG += curr->cog
					* (curr->absoluteMass / absoluteMass);
			}
		}
		// Allow collision shape to be traced back to us
		absoluteCShape->setUserPointer(owner);

		// Only entities with no parents should have rigid bodies.
		if(parent == nullptr)
		{
			//TODO: Update body mass and possibly motionstate
			
			// If the body already exists, this entity was already a parent
			// beforehand.  We just need to update it's collision shape
			// with the new absolute shape.
			if(body != nullptr)
			{
				body->setCollisionShape(absoluteCShape);
				body->setMassProps(absoluteMass, btVector3());
			}
			// Otherwise we need to instantiate a new rigid body and register
			// it with the physics world.
			else
			{
				btRigidBody::btRigidBodyConstructionInfo ci(absoluteMass, nullptr,
					absoluteCShape);
				body = new btRigidBody(ci);

			}

			// Set new center of gravity
			btTransform comTrans;
			comTrans.setOrigin(absoluteCOG);
			body->setCenterOfMassTransform(comTrans);
		}
		// If the entitiy is no longer a parent, remove it from the world
		else if(body != nullptr)
		{
			physMan->GetWorld()->removeRigidBody(body);
			delete body;
			body = nullptr;
		}
		// There is no else. Child objects do not get their own rigid body
	}
开发者ID:mrkline,项目名称:Core-Game-Engine,代码行数:76,代码来源:PhysicsComponent.cpp


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