Incorrect pointer from Physics.ray [Closed]

Harton · 01-05-2013 01:27 PM

When checking the object under cursor, function Physics.ray returned incorrect pointer. Anyone know why? Everything is the same as in tutorial "..\Tutorials\Source\Advanced\5 - Projects (here all files from a single directory need to be included in project)\02 - Inventory\"

cmontiel · 01-05-2013 03:15 PM

It is not a incorrect pointer. phys_hit.obj can be NULL.

In this example, only will have a real memory address when mouse is over a Game::Obj avoiding objects with flag AG_CONTROLLER (character). ie, it will contain memory address when the mouse is over the blunt.

Harton · 01-05-2013 04:18 PM

Quote:It is not a incorrect pointer. phys_hit.obj can be NULL.

I know. But why control moved to if block? Ray function hit something, right?

Quote:In this example, only will have a real memory address when mouse is over a Game::Obj avoiding objects with flag AG_CONTROLLER (character). ie, it will contain memory address when the mouse is over the blunt.

You are right. The mouse is over the object and then the control goes into if block. But always phys_hit.obj contains NULL. And I don't know why...

cmontiel · 01-05-2013 05:09 PM

Quote:I know. But why control moved to if block? Ray function hit something, right?

No, Physics.ray(...) can return true without hit objects.

Quote:You are right. The mouse is over the object and then the control goes into if block. But always phys_hit.obj contains NULL. And I don't know why...

Not always...

Try something like

Code:

GObjUnderCursor = phys_hit.obj;

if(GObjUnderCursor != NULL)

{

// breakpoint down here

int x = 0;

}

It should stops when mouse is over the blunt.

**Esenthel** · 01-06-2013 10:46 PM

phys_hit.obj is set to Actor.obj
actor.obj can be null (like terrain actor)

Harton · 01-07-2013 12:15 PM

I'm sorry for the trouble! It was my fault, my oversight.
I forgot to initialize the physics of the object ...

Incorrect pointer from Physics.ray [Closed]
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