/// boneを選択します。
/// returns: boneを見つけたかどうか
public bool SelectBone()
{
bool found = false;
//スクリーン座標からboneを見つけます。
//衝突する頂点の中で最も近い位置にあるboneを返します。
float x = lastScreenPoint.X;
float y = lastScreenPoint.Y;
int width = 5;//頂点ハンドルの幅
float min_z = 1e12f;
hkaBone found_bone = null;
foreach (hkaBone bone in skeleton.bones)
{
if (bone.hide)
{
continue;
}
Vector3 p2 = GetBonePositionOnScreen(bone);
if (p2.X - width <= x && x <= p2.X + width && p2.Y - width <= y && y <= p2.Y + width)
{
if (p2.Z < min_z)
{
min_z = p2.Z;
found = true;
found_bone = bone;
}
}
}
if (found)
{
selected_bone = found_bone;
Console.WriteLine("Select Bone: {0}", selected_bone.name);
camera.Center = selected_bone.GetWorldCoordinate().translation;
camera.UpdateTranslation();
}
return(found);
}
Vector3 GetBonePositionOnScreen(hkaBone bone)
{
Transform t = bone.GetWorldCoordinate();
return(WorldToScreen(t.translation));
}
void DrawBoneAxis(hkaBone bone)
{
Transform t = bone.GetWorldCoordinate();
DrawBoneAxis(t);
}