Okay, so I’ve been working on a little side project, and I need a (2D) raycasting based function. So what the function needs to do, is return a Y or X difference from the given point, to the “closest” floor. More specifically, if the point is inside collision, it finds the floor at the top of the collision. Otherwise, it finds the floor below. The issue is, I can’t just raycast up to check for a floor, because what if it’s inside a group of part… Okay, maybe this needs some images.
As you can see, when it’s outside of collision, it works perfectly fine. But when it’s inside, what do I do? I can’t cast down, that returns the bottom, but if I cast up, it returns the middle of the collision. How do I handle this, the intended result is this.
your wording is kind of confusing i thought you had a part that was blocking another part you wanted to raycast so i was saying u could just ignore that part
the triangles and rectangles are supposed to be parts, a floor is basically a surface facing opposite to the direction of the ray, and inside/outside collision is inside/outside the parts
So if I understand correctly, you want to find the point at the top of the group of parts, whereas your current solution gets stick inside the group of parts.
To do this, you should do a second raycast beginning at the first raycast’s hit point. If you don’t hit anything, you’re done. Bit of you do, you’re still stuck inside the group of parts. So then perform a third raycast at the second raycast’s hit point, etc.
EDIT: I’m not sure if that makes sense. I can draw a diagram in the morning if you’d like.
You’ve got me stumped there. I thought about it for a bit and I don’t know. You could combine clusters of parts into one polygon and instead find the top-most point of that one polygon.
local tool = script.Parent
local player = game:GetService("Players").LocalPlayer
tool.Equipped:connect(function(mouse)
print("Tool equipped!")
mouse.Button1Down:connect(function()
print("Mouse pressed!")
local ray = Ray.new(tool.Handle.CFrame.p, (mouse.Hit.p - tool.Handle.CFrame.p).unit * 300)
local part, position = workspace:FindPartOnRay(ray, player.Character, false, true)
local light = Instance.new("Part", workspace)
light.BrickColor = BrickColor.new("Bright red")
light.FormFactor = "Custom"
light.Material = "Neon"
light.Transparency = 0.25
light.Anchored = true
light.Locked = true
light.CanCollide = false
local distance = (tool.Handle.CFrame.p - position).magnitude
light.Size = Vector3.new(0.3, 0.3, distance)
light.CFrame = CFrame.new(tool.Handle.CFrame.p, position) * CFrame.new(0, 0, -distance / 2)
game:GetService("Debris"):AddItem(beam, 0.1)
if part then
local humanoid = part.Parent:FindFirstChild("Humanoid")
if not humanoid then
humanoid = part.Parent.Parent:FindFirstChild("Humanoid")
end
if humanoid then
humanoid:TakeDamage(30)
end
end
end)
end)
Add the ceiling parts to the IgnoreList? If you are trying to do it "2D’ then just make sure every ray shares the same y coordinate for the beginning and ending positions every time. It is still kind of confusing what you are saying, though, so sorry if this doesn’t help.
