Create multiple objects from one config

Kenn

Hople I'll describe my needs so everyone can get it It's my first "projet" in ORX and I'm quite confused.

I have definition of object in ini file. It is simple picture, but I want to insert it into scene 9 times with different positions and interact with them separately.

Is there any way to do it without creating 9 objects in config file and creating them with 9 lines of code?

iarwain

Hi!

Yes, you can create 9 times the same object in code and then call orxObject_SetPosition() on them, and store the positions in config so as to be able to change them without having to recompile:

config:
[Common]
ObjectPositions = (0, 0, 0) # (100, 0, 0) # ...

[MyGraphic]
Texture = ...

[MyObject]
Graphic = MyGraphic

code:
orxConfig_PushSection("Common");

for(orxS32 i = 0; i < orxConfig_GetListCounter("ObjectPositions"); i++)
{
  orxVECTOR v;
  orxOBJECT *pstObject = orxObject_CreateFromConfig("MyObject");
  orxObject_SetPosition(pstObject, orxConfig_GetVectorList("ObjectPositions", i, &v));
}
orxConfig_PopSection();

Or you can do it all in config and create only one object:

config:
[MyMainObject]
ChildList = Object1 # Object2 # ...

[ObjectBase]
Graphic = MyGraphic

[[email protected]]
Position = (0, 0, 0)

[[email protected]]
Position = (100, 0, 0)
...

in Code:

orxObject_CreateFromConfig("MyParentObject");

And if you move this object, all the children will move at the same time.

Kenn

Yes, I figured something like this alone, but what if I need to delete one (and only one) of this objects? Specifically after I click on it with mouse (Don't need full code of mouse clicks or so ).

iarwain

You have more than one option:
- store every object manually in code when creating them one by one
- store every object by listening to the orxOBJECT_EVENT_CREATE event (and only create the parent object)
- go through all the objects when you need it and find the one you want (orxStructure_GetFirst/GetNext)
- pick the object with orxObject_Pick() using the mouse position, in your case (the picking function looks only for object that have a greater Z than the position you give)

There might be other ways, but I think those are the most common.

Kenn

What a comprehensive response. Picking object by mouse position looks like the best way for me. I'll try it out.

iarwain

Let me know if you encounter any trouble with it!