koobas.hobune.stream
How to raycast hit empty space?
Hi Guys,
How do I trigger my raycast for hitting the empty space?
This part is where my raycast will hit the empty space & trigger the print("no object found") message but it didn't
if (matchOne == null)
{
print("No object found!");
}
function Update () {
if(Input.GetButtonDown("Fire1"))
{
var ray1 = Camera.main.ScreenPointToRay(Input.mousePosition);
if (Physics.Raycast(ray1, hit, Mathf.Infinity))
{
if(!matchOne)
{
revealCardOne();
}
else
{
revealCardTwo();
}
}
print("The mouse button has been clicked!");
}
}
function revealCardOne()
{
matchOne = hit.transform.gameObject;
tileName1 = matchOne.transform.parent.name;
if (matchOne == null)
{
print("No object found!");
}
else
{
tName1 = tileName1.Split("_"[0]);
print("Name: " + tName1);
}
}
Thanks!
First, find out what your raycast is actually hitting, if anything. This is NOT a suitable question since it's too specific and just clutters up the site, making it difficult for new users to find answers they need.
So it doesn't happen because you don't call revealCardOne() unless the ray cast hit something :)
Physics.RayCast returns true only if you click something...
You are looking for an else to go with that if(Physics.RayCast
if(Physics.RayCast(...
{
...
}
else
{
print("No object found");
}
EDIT Question title has changed:
You cannot get a hit on nothing with a ray cast - see above for how to tell that you have hit nothing, which is technically not a hit :)
His print command is outside the if block though, so it should print. It's more likely that his Raycast failed (unless he changed the code within the last 6 $$anonymous$$utes).
sorry guys! I realize my question need to correct, I changed it! I'm more concerned about the print command under the function revealCardOne.
it works when i hit an gameobject, but when I hit the empty scene, it supposed to print("No object found"), but it didn't.
@$$anonymous$$izuho - look again - the print he is after is in a function - that function is not called.
@moonLite - see my answer which is the solution your problem
Thanks $$anonymous$$ike! =) So in the end, it's still more like "If" raycast does not happen "Else" triggers "no object found"
FYI,
if (Physics.Raycast(ray1, hit, $$anonymous$$athf.Infinity))
{
if(!matchOne)
{
revealCardOne();
print(matchOne + "2");
}
else
{
revealCardTwo();
}
}
// below is the part where to
//check raycast has been casted & casted on empty scene
else
{
print("No object found - new msg");
}
