a possible solution would be to use polygon triangulation to basically fill the room with parts, and then just turn those parts into a region, and then check if the player is in the region.

basic polygon triangulation:

```
local points = {} -- put your nodes in here.
table.sort(points, function(a,b) return tonumber(a.Name) < tonumber(b.Name) end)
local verticeCount = #toPolygon:GetChildren()
function GetPointInFront(point, listOfPoints)
if point == #listOfPoints then
return listOfPoints[1]
else
return listOfPoints[point+1]
end
end
function GetPointBehind(point, listOfPoints)
if point == 1 then
return listOfPoints[#listOfPoints]
else
if point == 4 then
print("______")
print(listOfPoints[point-1])
end
return listOfPoints[point-1]
end
end
function IsPointConvex(behind, point, infront, previousDirection)
local v1 = point.Position - behind.Position
local v2 = infront.Position - point.Position
local crossproduct = v2:Cross(v1)
local currentDirection
if crossproduct.Y > 0 then
currentDirection = 1
else
currentDirection = -1
end
return currentDirection ~= previousDirection
end
function GetAreaOfTriangle(A, B, C)
local BA = A.Position - B.Position
local CA = C.Position - B.Position
return (BA:Cross(CA).magnitude/2)
end
function GetEarOfPolygon(parts, direction, folder)
local i = 1
local earFound = false
local newTable
while not earFound and i <= #parts do wait()
local point = parts[i]
local A, B, C = GetPointBehind(i, parts), point, GetPointInFront(i, parts)
if IsPointConvex(A,B,C, direction) then
local contained = false
for x,v in pairs(parts) do
if v ~= A and v ~= B and v ~= C then
local a1,a2,a3 = GetAreaOfTriangle(A, B, v), GetAreaOfTriangle(A, C, v), GetAreaOfTriangle(B, C, v)
if a1 + a2 + a3 == GetAreaOfTriangle(A, B, C) then
contained = true
end
end
end
if not contained then
earFound = point
drawTriangle(A.Position, B.Position, C.Position, folder)
newTable = {}
for x,v in pairs(parts) do
if v ~= point then
table.insert(newTable, v)
end
end
end
end
i=i+1
end
return earFound, newTable
end
function TriangulatePolygon(points)
local folder = Instance.new("Folder", game.Workspace)
while true do
local newTable = points
local done = false
while #newTable > 2 do
done,newTable = GetEarOfPolygon(newTable, -1, folder)
table.sort(newTable, function(a,b) return tonumber(a.Name) < tonumber(b.Name) end)
wait()
end
wait(0.5)
folder:ClearAllChildren()
end
end
local wedge = Instance.new("WedgePart")
wedge.Material = Enum.Material.SmoothPlastic
wedge.Transparency = 0
wedge.Anchored = true
wedge.CanCollide = false
wedge.TopSurface = Enum.SurfaceType.Smooth
wedge.BottomSurface = Enum.SurfaceType.Smooth
wedge.Color = Color3.fromRGB(125, 125, 125)
local wedgeMesh = Instance.new("SpecialMesh", wedge)
wedgeMesh.MeshType = Enum.MeshType.Wedge
wedgeMesh.Scale = Vector3.new(1,1,1)
function drawTriangle(a, b, c, parent)
local edges = {
{longest = (c - b), other = (a - b), position = b};
{longest = (a - c), other = (b - c), position = c};
{longest = (b - a), other = (c - a), position = a};
};
table.sort(edges, function(a, b) return a.longest.magnitude > b.longest.magnitude end);
local edge = edges[1];
local theta = math.acos(edge.longest.unit:Dot(edge.other.unit))
local s1 = Vector2.new(edge.other.magnitude * math.cos(theta), edge.other.magnitude * math.sin(theta));
local s2 = Vector2.new(edge.longest.magnitude - s1.x, s1.y);
local p1 = edge.position + edge.other * 0.5
local p2 = edge.position + edge.longest + (edge.other - edge.longest) * 0.5
local right = edge.longest:Cross(edge.other).unit;
local up = right:Cross(edge.longest).unit;
local back = edge.longest.unit;
local cf1 = CFrame.new(
p1.x, p1.y, p1.z,
-right.x, up.x, back.x,
-right.y, up.y, back.y,
-right.z, up.z, back.z
);
local cf2 = CFrame.new(
p2.x, p2.y, p2.z,
right.x, up.x, -back.x,
right.y, up.y, -back.y,
right.z, up.z, -back.z
);
local w1 = wedge:Clone();
local w2 = wedge:Clone();
w1.Parent = parent;
w2.Parent = parent;
w1.Size = Vector3.new(0.01, s1.y, s1.x);
w2.Size = Vector3.new(0.01, s2.y, s2.x);
w1.CFrame = cf1;
w2.CFrame = cf2;
end;
TriangulatePolygon(points)
```