add gs

RCCService2021/ExtraContent/LuaPackages/UGCValidationImpl/validation/validateMeshBounds.lua

@@ -0,0 +1,72 @@
+local UGCValidationService = game:GetService("UGCValidationService")
+
+local root = script.Parent.Parent
+
+local Constants = require(root.Constants)
+
+local DEFAULT_OFFSET = Vector3.new(0, 0, 0)
+
+local function pointInBounds(worldPos, boundsCF, boundsSize)
+	local objectPos = boundsCF:pointToObjectSpace(worldPos)
+	return  objectPos.X >= -boundsSize.X/2
+		and objectPos.X <=  boundsSize.X/2
+		and objectPos.Y >= -boundsSize.Y/2
+		and objectPos.Y <=  boundsSize.Y/2
+		and objectPos.Z >= -boundsSize.Z/2
+		and objectPos.Z <=  boundsSize.Z/2
+end
+
+local function getAttachment(parent, names)
+	for _, name in pairs(names) do
+		local result = parent:FindFirstChild(name)
+		if result then
+			return result
+		end
+	end
+	return nil
+end
+
+local function validateMeshBounds(isAsync, instance, assetTypeEnum)
+	local assetInfo = Constants.ASSET_TYPE_INFO[assetTypeEnum]
+
+	-- these are guaranteed to exist thanks to validateInstanceTree being called beforehand
+	local handle = instance.Handle
+	local mesh = handle:FindFirstChildOfClass("SpecialMesh")
+	local attachment = getAttachment(handle, assetInfo.attachmentNames)
+
+	if mesh.MeshId == "" then
+		return false, { "Mesh must contain valid MeshId" }
+	end
+
+	local success, verts = pcall(function()
+		if isAsync then
+			return UGCValidationService:GetMeshVerts(mesh.MeshId)
+		else
+			return UGCValidationService:GetMeshVertsSync(mesh.MeshId)
+		end
+	end)
+
+	if not success then
+		return false, { "Failed to read mesh" }
+	end
+
+	local boundsInfo = assert(assetInfo.bounds[attachment.Name], "Could not find bounds for " .. attachment.Name)
+	local boundsSize = boundsInfo.size
+	local boundsOffset = boundsInfo.offset or DEFAULT_OFFSET
+	local boundsCF = handle.CFrame * attachment.CFrame * CFrame.new(boundsOffset)
+
+	for _, vertPos in pairs(verts) do
+		local worldPos = handle.CFrame:pointToWorldSpace(vertPos * mesh.Scale)
+		if not pointInBounds(worldPos, boundsCF, boundsSize) then
+			return false, {
+				"Mesh is too large!",
+				string.format("Max size for type %s is ( %s )", assetTypeEnum.Name, tostring(boundsSize)),
+				"Use SpecialMesh.Scale if needed"
+			}
+		end
+	end
+
+	return true
+end
+
+return validateMeshBounds