TerrainElevation

[Clackdor]

I want to use the TerrainElevation() function.

 

flt TerrainElevation( TEntity terrain, flt x, flt y )

 

If I have loaded a map using

 

TEntity scene = LoadScene("abstract::pacman.sbx");

 

How do I access the TEntity terrain reference required as an argument for TerrainElevation?

[Canardia]

TTerrain terrain=GetChild(scene,0);

[Clackdor]

I appreciate the answer. Haven't put it in my code yet, but, how did you know that it was the 0 child? I figured it would be a GetChild or FindChild function. I spent about an hour though assuming that I couldn't know the child order, looking for the name of the terrain to use FindChild.

[Canardia]

It's always child 0, unless it has been changed. I think also FindChild(scene,"terrain") works, and should be used to ensure future compatibility.

[Pixel Perfect]

I think also FindChild(scene,"terrain") works, and should be used to ensure future compatibility.

I does, that's what I've always used.

[Clackdor]

Ok, so neither of those is working. In the case of GetChild, I get a reference, but the TerrainElevation function causes a crash, which tells me that it is not returning a TTerrain type, but a different entity. If the case of FindChild, the reference is null, so I'm thinking that "terrain" isn't the correct name to be searching for.

[Road Kill Kenny]

I don't have your answer but I'm pretty sure you can't search for a child of a scene. I think that once a scene is created it doesn't have a context any more. But I'm not sure I just recall hearing that somewhere.

[Clackdor]

Ok, took another look at this. I used:

TTerrain terrain=GetChild(scene,CountChildren(scene));

 

I took a look at the sbx file and Terrain is the very last item listed. Had a hunch and it worked out.

[Pixel Perfect]

Well this works for me:

 

for (i = 1; i <= childCount; i++)
{
               newChild = GetChild(child,i);
	newChildCount = CountChildren(newChild);
	if(newChildCount>0) processChildren(newChild);

	// Get the terrain entity
	childClass = GetEntityKey(newChild, "class","");
	if(childClass ==  "Terrain")
	{
		terrain = newChild;
	}

[Clackdor]

Yes, Pixel, thanks. That seems to be a more correct way to do it.