[solved] changing submaterial

[sphinkie]

Hi,
I have a small problem with materials, in my game.

I have a class "computer" with its entity and its behaviour.
In the room, I have 8 computers.

In the 3D object, I have a material called "computer/screen".

And I want to change this material, for only one computer, for writting a red large "ALARM" (for instance).

I was using the following code, to find the material:

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int NumSubEntities = mEntity->getNumSubEntities();
for (int i=0; i<NumSubEntities; i++) 
	{
	String MatName = mEntity->getSubEntity(i)->getMaterialName();
	if (MatName == "computer/screen")  mScreenEntity=i;
	}

and this code to change the material:

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mEntity->getSubEntity(mScreenEntity)->setMaterialName("computer/alarm");

But the material change for the whole scene, so for all the 8 computer, and not only 1.

Do you know if there is a way to change a material, for only one instance of several entities ?
thanks

[Magefire]

I'm not very good at using OGRE but I read the documentation and it says that you can just set the entire material of the entity using

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mEntity->setMaterialName("computer/screen").

Also, to retrieven subentities, the only two options for parameters I saw were a string for the name or an integer for the index but you seem to be passing the parent entity as a parameter and I couldn't find an option for passing an entity as a parameter to getSubEntity().

I hope this helped.

[Cyberdigitus]

You can set names to subentities, independent of the subentity material name, so you can easily get the subobject in question:

void Mesh::nameSubMesh (const String &name, ushort index) // Gives a name to a SubMesh.
SubEntity * Entity::getSubEntity (const String &name) // Gets a pointer to a SubEntity by name.

Setting a material to the entity will set the same to all subentities, maybe some utility function to deal with multimaterials and above mentioned subEntity naming would be nice?

Is it possible to define those names in addition or instead of material names in the mesh.xml actually? That would be nice.

[sphinkie]

Thanks guys.

well Mage, you were right, but it was only a cut/paste error in my post.
and cyberdigitus, you way is maybe cleaner than mine, and I will use it.

but strangely, I made few more testing this afternoon, and it seems to work without touching anything... strange.... I will carry on anyway.