Merge near identical code in CTriangleSelector::createFromMesh and...

Merge near identical code in CTriangleSelector::createFromMesh and CTriangleSelector::updateFromMesh (createFromMesh now using updateFromMesh).

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4582 dfc29bdd-3216-0410-991c-e03cc46cb475

source/Irrlicht/CTriangleSelector.cpp

@@ -78,28 +78,9 @@ void CTriangleSelector::createFromMesh(const IMesh* mesh)
 	for (u32 j=0; j<cnt; ++j)
 		totalFaceCount += mesh->getMeshBuffer(j)->getIndexCount();
 	totalFaceCount /= 3;
-	Triangles.reallocate(totalFaceCount);
-	BoundingBox.reset(0.f, 0.f, 0.f);
-
-	for (u32 i=0; i<cnt; ++i)
-	{
-		const IMeshBuffer* buf = mesh->getMeshBuffer(i);
-
-		const u32 idxCnt = buf->getIndexCount();
-		const u16* const indices = buf->getIndices();
+	Triangles.set_used(totalFaceCount);
 
-		for (u32 j=0; j<idxCnt; j+=3)
-		{
-			Triangles.push_back(core::triangle3df(
-					buf->getPosition(indices[j+0]),
-					buf->getPosition(indices[j+1]),
-					buf->getPosition(indices[j+2])));
-			const core::triangle3df& tri = Triangles.getLast();
-			BoundingBox.addInternalPoint(tri.pointA);
-			BoundingBox.addInternalPoint(tri.pointB);
-			BoundingBox.addInternalPoint(tri.pointC);
-		}
-	}
+	updateFromMesh(mesh);
 }