Unigine::NodeDummy Class
| Header: | #include <UnigineNodes.h> |
| Inherits from: | Node |
A dummy node is a zero-sized node that has no visual representation. It is used to organize the other nodes into a hierarchy: the dummy node serves as a parent node and enables to organize the other nodes that are made its children into a group.
Notice
A bounding box of the dummy node is equal to the bounding boxes of all its child nodes combined together.
Creating a Dummy Node#
Create an instance of the NodeDummy class. You can also specify such settings as a name, transformation and so on.
AppWorldLogic.cpp
Source code (C++)
#include "AppWorldLogic.h"
#include <UnigineObjects.h>
#include <UnigineWorld.h>
using namespace Unigine;
using namespace Math;
int AppWorldLogic::init()
{
// create a dummy node
NodeDummyPtr dummy = NodeDummy::create();
// set a name
dummy->setName("DummyNode");
return 1;
}Organizing a Nodes Hierarchy#
To organize nodes in a hierarchy, perform as follows:
- Create an instance of the NodeDummy class.
- Create a node and add it as a child to the created dummy node.
AppWorldLogic.cpp
Source code (C++)
#include "AppWorldLogic.h"
#include <UnigineObjects.h>
#include <UnigineWorld.h>
using namespace Unigine;
using namespace Math;
int AppWorldLogic::init()
{
// create a dummy node
NodeDummyPtr root = NodeDummy::create();
// set a name for the node
root->setName("root");
// create child nodes
for (int y = -10; y <= 10; y++)
{
for (int x = -10; x <= 10; x++)
{
// create a node (an instance of the ObjectMeshStatic class from the specified mesh-file)
ObjectMeshStaticPtr node = ObjectMeshStatic::create("core/meshes/box.mesh");
// set node transformation
node->setWorldTransform(translate(Vec3(x * 2.0f, y * 2.0f, 0.0f)));
// set a name for the node
node->setName(String::format("mesh_%d_%d", x + 10, y + 10).get());
// add the node as a child to the root dummy node
root->addWorldChild(node);
}
}
return 1;
}NodeDummy Class
Members
static NodeDummyPtr create ( ) #
Constructor. Creates a dummy node.static int type ( ) #
Returns the type of the node.Return value
NodeDummy type identifier.Last update:
2024-08-16
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