Using raycast to check if part is on ground doesn't seem to work

Help and Feedback Scripting Support
#1

I am trying to figure out how I can check if the part is on the ground and not on a wall or ceiling by using Raycast that aims towards the ground. The problem is, Raycasts are not good with orientation and it’s confusing to find a way to find the right angle.

Basically, what I am trying to do is make a teleport script where the player can only teleport if their mouse is pointed on the ground and not on the wall or the ceiling and I use a Raycast to check the distance between a part positioned at the mouse’s 3D position and the ground below and check if the distance is around 1 stud so that way, it confirms that the position is on the ground. Can anyone help me resolve this?

elseif workspace:Raycast(hollowpart.Position, Vector3.new(0,-100,0)) ~= nil then
			print("check")
			print(workspace:Raycast(hollowpart.Position, Vector3.new(0,-100,0)).Distance)
			if workspace:Raycast(hollowpart.Position, Vector3.new(0,-100,0)).Distance < 1 then
				hollowpart.BrickColor = BrickColor.new("Bright green")
				highlight.FillColor = Color3.new(0,1,0)
				highlight.OutlineColor = Color3.new(0,1,0)
				billboard.ImageLabel.ImageColor3 = Color3.new(0,1,0)
			else
				print("nuh uhhh")
				hollowpart.BrickColor = BrickColor.new("Bright red")
				highlight.FillColor = Color3.new(1,0,0)
				highlight.OutlineColor = Color3.new(1,0,0)
				billboard.ImageLabel.ImageColor3 = Color3.new(1,0,0)
			end
		else
#2

um I think you can just do
And just either remove distance or set it to 1

workspace:Raycast(hollowpart.Position, Vector3.new(0,-1,0)) * Distance)

#3

Doesn’t seem to do anything.
chaaaarss

#4

Does the script print out "nuh uhhh " then

#5

Nope, it doesn’t detect any part’s touched underneath which means the raycast returns nil. I tried increasing the height of the part’s position but that didn’t work.

#6

Is the hollow part position correct because I thought you can just do

game.Workspace.Camera:ViewportPointToRay(Mouse.X,Mouse.Y)
#7

Yep, it is. Position is fine and all.
RobloxStudioBeta_iE8YLsVNnp
(Red means it can’t teleport.)

#8

Try moving the part up by 1 stud as it might be that the ray is going through the part somehow. In which case you would need to lower the distance

#9

I already did that which I mentioned above.

#10

Try printing out the raycasts origin and direction or just doing the math for it then seeing if the position it actually inside the part

#11

This won’t work, the raycast is returning nil so I can’t do anything.

#12

Ok so then just do to see where the ray ended up

local Debugger = Instance.new("Part")

Debugger.Parent = game.Workspace
Debugger.Name = "Debugger"
Debugger.Size = Vector3.new(1,1,1)
Debugger.Color3 = Color3.fromRGB(255,0,0)
Debugger.Position = hollowpart.Position + Vector3.new(0,-1,0)
#13

Found a workaround where I simply had to increase the hollowpart’s position when it’s placed at the mouse’s position.

(The height I tried increasing before was the position inside the Raycast and not the part itself.)

1 Like
#14

This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.