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- Tutorial 4.Movement
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- This Tutorial shows how to move and animate SceneNodes. The basic concept - of SceneNodeAnimators is shown as well as manual movement of nodes using - the keyboard. -The program which is described here will look like this: -
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- Lets start! |
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- As always, I include the header files, use the irr namespace, and tell - the linker to link with the .lib file. -
In this tutorial, one of our goals is to move a scene node using some
- keys on the keyboard. We store a pointer to the scene node we want to
- move with the keys here.
To get events like mouse and keyboard input, or GUI events like "the - OK button has been clicked", we need an object wich is derived - from the IEventReceiver object. There is only one method to override: - OnEvent. This method will be called by the engine when an event happened. - We will use this input to move the scene node with the keys W and S. -
If the key 'W' or 'S' was left up, we get the position of the scene - node, and modify the Y coordinate a little bit. So if you press 'W', - the node moves up, and if you press 'S' it moves down. -
The event receiver for moving a scene node is ready. So lets just create - an Irrlicht Device and the scene node we want to move. We also create - some other additional scene nodes, to show that there are also some different - possibilities to move and animate scene nodes. -
Create the node for moving it with the 'W' and 'S' key. We create a - sphere node, which is a built in geometric primitive scene node. - We place the node at (0,0,30) and assign a texture to it to let it look - a little bit more interesting. -
Now we create another node, moving using a scene node animator. Scene
- node animators modify scene nodes and can be attached to any scene node
- like
The last scene node we add to show possibilities of scene node animators - is a md2 model, which uses a 'fly straight' animator to run between to - points. -
To make to model look right we set the frames between which
- the animation should loop, rotate the model around 180 degrees, and adjust
- the animation speed and the texture.
To be able to look at and move around in this scene, we create a first - person shooter style camera and make the mouse cursor invisible. -
We have done everything, so lets draw it. We also write the current frames - per second and the name of the driver to the caption of the window. -
That's it. Compile and play around with the program. -
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+
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+ Tutorial 4.Movement
+ |
+
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+
+
+ This Tutorial shows how to move and animate SceneNodes. The basic concept + of SceneNodeAnimators is shown as well as manual movement of nodes using + the keyboard. +The program which is described here will look like this: +
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+ |
+
|
+ Lets start! |
+ |||||||||||
|
+
+ As always, I include the header files, use the irr namespace, and tell + the linker to link with the .lib file. +
In this tutorial, one of our goals is to move a scene node using some
+ keys on the keyboard. We store a pointer to the scene node we want to
+ move with the keys here.
To get events like mouse and keyboard input, or GUI events like "the + OK button has been clicked", we need an object wich is derived + from the IEventReceiver object. There is only one method to override: + OnEvent. This method will be called by the engine when an event happened. + We will use this input to move the scene node with the keys W and S. +
If the key 'W' or 'S' was left up, we get the position of the scene + node, and modify the Y coordinate a little bit. So if you press 'W', + the node moves up, and if you press 'S' it moves down. +
The event receiver for moving a scene node is ready. So lets just create + an Irrlicht Device and the scene node we want to move. We also create + some other additional scene nodes, to show that there are also some different + possibilities to move and animate scene nodes. +
Create the node for moving it with the 'W' and 'S' key. We create a + sphere node, which is a built in geometric primitive scene node. + We place the node at (0,0,30) and assign a texture to it to let it look + a little bit more interesting. +
Now we create another node, moving using a scene node animator. Scene
+ node animators modify scene nodes and can be attached to any scene node
+ like
The last scene node we add to show possibilities of scene node animators + is a md2 model, which uses a 'fly straight' animator to run between to + points. +
To make to model look right we set the frames between which
+ the animation should loop, rotate the model around 180 degrees, and adjust
+ the animation speed and the texture.
To be able to look at and move around in this scene, we create a first + person shooter style camera and make the mouse cursor invisible. +
We have done everything, so lets draw it. We also write the current frames + per second and the name of the driver to the caption of the window. +
That's it. Compile and play around with the program. +
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+ + -- cgit v1.1